Navegando por Assunto "Pesca"

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Acidentes com animais aquáticos em pescadores artesanais em um município da costa Amazônica: do levantamento ao tratamento
(Universidade Federal do Pará, 2019-06-18) SILVA, Patrícia Fernandes da; MARTINELLI FILHO, José Eduardo; http://lattes.cnpq.br/2080628833884538
Accidents with aquatic animals may occur whenever men invade the animal’s environment or handle it without proper care. Many studies reported cnidarians, stingrays, catfishes, toadfishes and others as dangerous to man, nevertheless information is scarce and inconclusive for the Brazilian North region. The frequency of accidents is probably high at the Pará state since fisheries is an important activity, although the cases are not adequately registered. Artisanal fisheries are an economic and socially important activity for the coastal municipalities in the Brazilian Amazon and gathers a great number of fishermen. Artisanal fishermen, are thus associated to a great risk of accidents caused by aquatic animals. The present study analyzes the frequency and variability of the occurrence of accidents with aquatic animals on artisanal fishermen, and related to different fishing strategies. It also explores the ethnobiological knowledge about the causative animals, treatment methods and accidents prevention. Data was collected at São Caetano de Odivelas municipality (Pará state), where traditional communities are sustained by artisanal fisheries. A total of 154 interviews were collected, gathering socioeconomic and ethnobiological information about accidents with aquatic animals. Accidents occurred in 98,7% of the interviewers and were associated to the daily labor from artisanal fisheries. Stingrays, catfishes and toadfishes were responsible for the most of the accdients (81,6%), independent from the different fishing strategies. The search for medical care was uncommon after a accident (26,3%) and the recommended medical procedures were no adopted by the fishermen. The number of accidents was higher with a lower scholar level among the fishermen (p < 0,001). In order to reach the artisanal fishermen, a didactical product (a calendar) was developed, with information to aid the avoidance, treatment and procedures after an accident with an aquatic animal.
Acesso aberto (Open Access)
Acordos de pesca: a efetividade dos acordos para o desenvolvimento local nas comunidades do Pixuna e Jarí do Socorro no município de Santarém-PA
(Universidade Federal do Pará, 2014-03-28) OLIVEIRA, Everton Jose do Nascimento; MITSCHEIN, Thomas Adalbert; http://lattes.cnpq.br/7431424927108512
This research aimed to investigate the effectiveness of fisheries agreements in the Amazon as a tool for participatory management through population living in communities Pixuna and Jari Relief in the municipality of Santarém - Pa . To this end, we analyzed how these communities perceive the current fisheries agreements , since they are considered agroextractivist and having fishing activity in their source of income , protein and over the years has been practicing the mechanism of the fisheries agreement as way of managing this activity . Also attempted to interview representatives of NGOs such as IPAM as an organization responsible for promotion of a simpler way for fishermen who happens to be in the Law and Practice Normative Instruction IBAMA n. 29/2002 which deals with the creation of fisheries agreements , the fishing Colony Z - 20 accountable and responsible to defend the interests and rights of workers in the sector of artisanal fishing spot before public bodies and society and IBAMA official representative of the public , managers and supervisory power of any shares predatory and environmental degradation evident in the agreements implemented in fishing communities . The research describes the floodplain environment as a setting for those relationships that are established from the use of a resource freely accessible to all as is the case of fish. With respect to methodology, techniques constituted as: direct observation, application of a semi -structured questionnaire and interviews. Characteristics of the study, their subjects and the information regarding the collection and analysis of data were presented. Thus, the study was characterized as qualitative. Data were analyzed using basic statistical procedures using SPSS software as frequency and estimates of descriptive parameters, with representation of trends in tables and graphs, which aims to better display these analyzes and observations to the context of research. Finally, the concluding remarks of the study, where it was identified that the lack of coordination among community residents in the localities, and communities with public authorities can, be identified as important factors in the decline observed in the current fishing agreements were made , another interesting point and of considerable importance is the absence of the body responsible for the oversight of the rules found in fisheries agreements , IBAMA . Therefore, some recommendations were suggested to the members of the organizations analyzed .
Acesso aberto (Open Access)
Acordos de pesca: desafios de implementação e consolidação em áreas de várzea do município de Gurupá, Pará, Brasil
(Universidade Federal do Pará, 2010-08-03) COSTA, Pâmela Melo; MCGRATH, David Gibbs; http://lattes.cnpq.br/4373475491613670
Considering the context in which many decisions Amazon to protect and conserve the environment for the region often arise vertically, with no participation of the users of natural resources, local community in decision-making processes, and end up forgetting the empirical experiences this population is that they did this study. Through the methodological techniques: direct observation, application of semi-structured interviews, analysis of monitoring data sheets, we tried to look at the context of life gurupaense, especially those living on the floodplains of the municipality, and has considered agroextractivists activity fishing source of protein, income and who has been practicing in a shared mechanism of the Fisheries Agreement as a way of managing this activity. The research focuses on the Community Management of Shrimp implementation process and consolidate the participation of experts, NGOs and financing projects, as well as the social, economic and environmental conditions in periods in which there was or not the work of that outside mediation. The study showed that participation of outside mediation stimulated organizational processes and provided the local collective action, which even with the termination of support, self-management and community force is passed on to younger generations, but the study also shows that the challenge best indicators for the environmental levels is required technical support to promote scientific research in the field of Population Dynamics of Fish Stocks.
Acesso aberto (Open Access)
Água, vida e saberes na pesca
(Universidade Federal do Pará, 2004-09) MORAES, Sérgio Cardoso de
Acesso aberto (Open Access)
A atividade pesqueira nas ilhas do entorno de Belém
(Universidade Federal do Pará, 2010) SCHALLENBERGER, Bárbara Heck; FRÉDOU, Flávia Lucena; http://lattes.cnpq.br/4779271407117528
The Amazonian estuary is a region with favorable conditions for productivity, and fishery is an important activity. The islands of Combu, Onças and Mosqueiro, focus of this study, are part of the Amazonian estuary and fishing is an important activity. Based on this information, the objective of this study was to describe and to compare the different types of fishing at Combu, Onças and Mosqueiro islands, identifying sustainability indicators, considering the economic, social, ecological and technological aspects, which results may help to assist to generate subsidies for the formulation of public policies to the fisheries sector. Descriptive and numeric variables considering the different dimensions were used in order to describe the systems of fish production to make comparisons including both the systems and also the islands studied. For comparative statistical analysis only the numerical variables (means and percentages) were used from data collected by researches and from secondary data. Multivariate analysis; Cluster analysis and ordination (MDS) comparing the systems were applied to identify groups and the possible causes of the similarity between the systems for each island. On Combu´s Island it was identified the following fishery systems: matapi, gill net for consumption, block net , longline hook medium and longline hook large. On Onças´s Island it was observed the fishery systems matapi, gill net for consumption, gill net for commercial purpose, block net , longline hook medium and longline hook large. On Mosqueiro´s Island it was identified the fishery systems matapi, gill net commercial, longline hook medium and longline hook large. The analysis of systems in all dimensions showed that the island of Mosqueiro differs to the other islands. When analyzed separately by dimension Matapi system, block net and gill net consumption of the islandes Combu and Onças were very similar. However, systems observed in Mosqueiro´s Island differ from the other islands mainly considering the economic dimension. Based on the results, it can be said that fishing in the islands of Onças and Combu is for subsistence and the main activity is the vegetable extraction while fishing in Mosqueiro´s Island is commercial. Although fishing in the islands of Combu and Onças is only for subsistence, it´s also an important source of food and extra money for the residents. In Mosqueiro´s Island fishing has high economic importance, but the fishing areas are also exploited by fishermen from other parts of the state without any management initiatives by the government.
Acesso aberto (Open Access)
Caracterização da atividade pesqueira em Vila do Conde (Barcarena, Pará), no estuário amazônico
(2011-08) PAZ, Alexsandra Câmara; FRÉDOU, Flávia Lucena; FRÉDOU, Thierry
Vila do Conde is an important industrial complex in the south of the Marajó Bay. Despite the important fishery activity and the vulnerability in terms of environmental impacts, no relevant scientific study on fishery and ichthyofauna has been carried out in the area. This study aimed to describe the fishing activity by monitoring commercial landings of the main site (Praia do Conde) of the region between December 2005 and November 2006. The relative abundance index, catch-per-unit-of-effort (CPUE in kg/fishing trip), was used to identify the harvest season, species and fleet most relevant in the region. Forty-three boats were monitored, mainly small wooden boats. The main fishing gear was the long-line. The main local species were Brachyplatystoma rousseauxii (dourada catfish), Plagioscion squamosissimus (South American silver croaker), Pellona flavipinnis (yellowfin river pellona), P. castelnaeana (Amazon pellona) e B. filamentosum (filhote). Fleets caught an average of 19 kg/trip. Motorised boats were more productive than non-motorised. Two maximum harvest periods were observed: in January and September/October. The gross revenue of the fishery was over R$ 100,000.00. Wooden small boats contributed to 36% of the total catch.
Acesso aberto (Open Access)
Caracterização do pescador e da frota pesqueira comercial de Manoel Urbano e Sena Madureira (AC) e Boca do Acre (AM)
(2012-06) ALMEIDA, Oriana Trindade de; AMARAL, Lucilene Oliveira da Silva; RIVERO, Sérgio Luiz de Medeiros; SILVA, Christian Nunes da
Several studies about the ﬁ shing sector have been carried on in the Amazon, however, the majority of these studies are concentrated on regions near the Amazon river bank and its delta. This work has the objective to characterize the Purus commercial ﬁshing ﬂeet and the ﬁsher in three counties: Manoel Urbano and Sena Madureira in the Brazilian state of Acre (AC) and Boca do Acre, in Amazonas (AM).We estimate the ﬁsheries production and income. The results show that in Manoel Urbano (AC) lake ﬁsheries predominate while in Sena Madureira (AC), the diversity in ﬁshing places are lager with ﬁshers using lakes, river and creeks. In Boca do Acre (AM), the largest among the three cities, the most important ﬁshing plots are Pauini and Labrea areas. In relation to boats, Manoel Urbano ﬁshers use only canoes with most of it motorized. In Boca do Acre, ﬁ sheries are practiced mainly in boat. In relation to ﬁshing trip costs the results showed that variable costs are the main costs for canoes (63% of total income) and boats (73% of total income). The analyses showed also that motorized canoes have larger productive capacity per unit of effort (CPUE) in relation to boats.
Acesso aberto (Open Access)
Composição, abundância e pesca da ictiofauna como indicadores do estado de conservação de dois lagos de várzea no baixo Rio Amazonas (Brasil)
(Universidade Federal do Pará, 2010) ALMEIDA, Morgana Carvalho de; ISAAC, Victoria Judith; http://lattes.cnpq.br/3696530797888724
The Amazon floodplain has a rich biodiversity and its characteristics influence the economically and ecologically important natural aquatic resources for the people. On the basis of these information, the objective of this research was to characterize the composition and abundance of ichthyofauna in two floodplain lakes in the Santarem region, and to understand the use I buy fishers in the Piracãoera and Campos fishing communities, in the Urucurituba region, and Barreira and Correio communities in the Tapará region. Samples were taken in the Aramanaí and Curiquara lakes considering the four hydrological periods (rising, flood, low, dry) for the period between July of 2006 and April of 2007. For the fish sampling were used set gillnets batteries. To collect data on catches of fishermen, forms were used that contained information about the characteristics of the fisheries. We caught 10,146 fish, which were distributed in 156 species, 27 families and 8 orders. The most abundant families in number of individuals were Sciaenidae and Loricariidae. In Aramanaí Lake, the Loricaria sp, was the species with the highest CPUAn with 0.02 individuals per m². hour. In terms of CPUAp featured species Potamotrygon motoro, with 0.13 g.m ². hour and Pterygoplichthys pardalis with 0.11 g. m². hour. In Curiquara Lake, the main catch in number of individuals was represented by the Pachypops fourcroi with 0,001 individuals per m² of gillnet. Curiquara and Aramanaí lakes 9 trophic guilds were identified and for both lakes fish piscivores and detritivores showed the largest catch by weight. The average length of individuals caught in the lakes was 20.27 ± 7.53 cm. The highest mean length of individuals was in the flood and lower in the low period. When fishing is practiced by fishermen used a variety of fishing gear devices highlighting the gill netting. The use of gear depends on the environment exploited, target species, and in addition to the season, and there may be combinations of more than one gear during the catch. The average yield of the fisheries in the two regions was 10 kg.fishermen.dia-1. In Urucurituba region the CPUE average was 16kg.fishermen.dia-1, in Tapará was 4.5 kg.fishermen.dia-1. The Urucurituba’s fishermen showed the higher catch volume and fish marketing. These communities are partially fulfilling the rules of the fisheries agreements.
Acesso aberto (Open Access)
Determinação da idade e crescimento da piramutaba Brachyplatystoma vaillantii (Valenciennes, 1840) (Siluriformes : Pimelodidae) capturada no Estuário amazônico
(Universidade Federal do Pará, 2001-05-31) PIRKER, Lilianne Esther Mergulhão; BARTHEM, Ronaldo Borges; http://lattes.cnpq.br/4192105831997326
The specimens of piramutaba (Brachyplatystoma vaillantii) analyzed in this research were obtained from experimental fisheries in the amazon estuary. For the study of age determination pectorals and dorsal spines, opercules, otoliths (lapillus) and vertebrae were analyzed. From the analysis of these structures it was concluded that the vertebrae is the most appropriate bony structure for the age determination of piramutaba. This is so because the vertebrae showed good resolution in annulus (59%), and it also has a significant exponential relationship (r² = 0,9889 and P<0,05) between the radius of the vertebrae and the fork length of fish. The seasonal rings were validated using length frequency analysis. Two annual rings are formed on the vertebrae of piramutaba. The weight-length relationship seen in piramutaba describes its growth as allometric and the equation that describes its growth is: Wt = 6,1 * 10-6 * Lf3,1129. The sexual proportion of piramutaba observed was not 1:1, as the number of females was superior to the males. On vertebraes of piramutaba a maximum of ten rings were observed. The von Bertalanffy growth model was utilized in this research to estimate the length and weight equations. The growth parameters (k, t0 e L∞) were estimated through four different methods: rings reading, backcalculation, rings modal progression and length frequency analysis. The growth parameters were k = 0,138 ano-1, t0 = -0,239 e L∞ = 110,5 cm (tings xeaffing); k = 0,119 ano-1, t0 = -0,202 e L∞ = 110,5 cm (backcakulation); k = 0,096 ano-1, t0 = -0,146 e L∞ = 110,5 cm (rings modal progression) and k = 0,127 ano-1, t0 = -0,236 e L∞ = 110,5 cm (length frequency analys is).
Acesso aberto (Open Access)
Diagnóstico da pesca no litoral paraense
(Universidade Federal do Pará, 2004-02) SILVA, Bianca Bentes da; ISAAC, Victoria Judith; http://lattes.cnpq.br/3696530797888724
Acesso aberto (Open Access)
Diagnóstico participativo qualitativo sobre a pesca artesanal no município de Salinópolis-PA
(Universidade Federal do Pará, 2010-04-16) FERRO, Antonio da Silva; MORAES, Sérgio Cardoso de; http://lattes.cnpq.br/4568311568729454
The Amazon estuary extends along the north-eastern South America, starting from the Maranhão, extending into the Oyapock River at the northern end of the State of Amapá. It is a region where there is much activity takes place industrial and artisanal fishing. This estuary is the scene of intense fishing activity, this study aims to conduct a participatory diagnosis among the fishermen of the area of salt in the city of Salinópolis-PA, but precisely in the village of Cuiarana. They are fishermen whose concepts are varied, in practice small-scale fishing and being self-employed or with respect to work in partnerships with neighbors or relatives, providing little capital and small production. Employing technologies and methodologies to capture with simple technologies, but no less complex. They act in the estuary and even today many do not participate in public policy programs that are effectively targeted to these fishermen. We realize today that the government has long sought an efficient administrative system of fishing. Despite this order, remain the uncertainties of the systematic action in the development of effective targets in the medium and long-term resolution of problems in Para fisheries, particularly the fishermen. The object of this research is to develop a participatory diagnosis based on previous studies on the causes of the decline of fish, environmental degradation, the need for public policies in education on the coast of Para, in particular in the village of Cuiarana in Salinópolis. This diagnosis intends to discuss with local stakeholders, their representativeness and local government, it’s social, environmental and economic, due to the difficulty of local fisheries. To achieve these purposes, I'm doing literature reviews and evaluations of research in areas adjacent to this study. I want to discuss and get answers from the community about the current social, economic, educational and environmental these fishermen. The surveying of cultural and historical facts about the beginnings of its settlement, as well as qualitative and quantitative survey of fish species caught in the periods during and between harvests, comparing their market value and its economic implications for fishermen. To this end, we used techniques based on interviews, meetings, discussions, questionnaires and applications of methods of participatory strategic planning to discuss with the community: a) major implications sites identified as factors reducing fish in the region, b) the removal of fish more captured during crop harvests and c) the production and manufacture of pre-prepared leaflets and educational brochures with information on: the social, economic, environmental and fishing d) provide meetings and discussions systemic character information on the issues fisheries, environment, culture, education, health, safety and leisure, e) strengthen the fishing community through the provision of news, using the local community radio station in order to provide clarification most significant and productive for fishing, the period closure of the protection of wetlands, the use of preventive measures, etc.. f) point out and discuss with the riverine, proposes solutions to combat or minimize the decline in fish stocks local g) assist in the development of community projects, in pursuit of public policy for the purpose of improving the quality of life and the inclusion of such fishermen and their families. Thus, through technical information, the community can better discuss activities such as conservation of fish, protection of fish stocks, protection and minimize the use of mangroves, prevent or minimize fires, and combat illiteracy.
Acesso aberto (Open Access)
Dinâmica da economia e das relações do trabalho da pesca artesanal no município de Santarém
(Universidade Federal do Pará, 2009-04-28) MARTINS, Everaldo de Vasconcelos; CASTRO, Edna Maria Ramos de; http://lattes.cnpq.br/4702941668727146; ALMEIDA, Oriana Trindade de; http://lattes.cnpq.br/0325909843645279
The case study project presented here focuses on how they can explain the dynamics of economics and labor relations in the chain of fishing that occurs in the fishing communities of Ituqui and Tapará Coast, located in the municipality of Santarém-PA, where were interviewed and consulted key players who work in commercial production chain, from capture to the wholesale trade. After analysis and processing of data that were obtained in field work, we demonstrated how trade flows occur and labor relations in fishing communities studied. Fishing is an activity directed to the welfare and survival of fishermen and their families. The data were copied into tables, which is demonstrated the resourcefulness of the fishing activity in those communities, since the capture process, through direct marketing in the context of communities and acting on the mediator boats that interfere in the chain of the fishing trade in the municipality of Santarém. With the conclusion of the case study, it was possible to detect the relevant factors that influence the organizational level of communities through the entity hat represents them, considering the benefits set by government and other nongovernment entities, resulting in the binding of 100% of fishermen to the Fishermen Colony Z-20. Every fishermen interviewed is a signatory of the fishing agreements provided by them and consents to IBAMA. Register that 100% of fishermen of Ituqui fishing communities and Tapará Grande develop their activities using their own resources and depend on income solely derived from the fishing, which reinforces that in the period didn’t have fish they come to rely on unemployment insurance for the maintenance of family and to regain their boats and fishing gears for the next fishing season.
Acesso aberto (Open Access)
Ecologia, pesca e dinâmica populacional do camarão-da-Amazônia - Macrobrachium amazonicum (Heller, 1862) (Decapoda:Palaemonidae) – capturado na região das ilhas de Belém - Pará - Brasil
(Universidade Federal do Pará, 2011) SILVA, Bianca Bentes da; MARTINELLI-LEMOS, Jussara Moretto; http://lattes.cnpq.br/5264841936875017; ISAAC, Victoria Judith; http://lattes.cnpq.br/3696530797888724
In monthly biological samples of M. amazonicum in Guajará Bay and Mosqueiro island, were studied reproduction, density, morphometric relationships and population dynamics. Two other sample designs was realized in two perennial the same estuary. Results indicate differences in capture of this species using different bait of meal, but is solely on the abundance and population structure does not change. The species is most abundant in the dry season, supporting the idea higher catchability of fishery resources. In Combu island was found species with larger sizes. Females are significantly larger and heavier than males, indicating the differentiation in metabolism due to reproduction. Sex ratio of males is higher in smaller size classes, which may indicate an increase in predation on smaller sizes of males due to their behavior more aggressive than the females or males simply because they reach lengths larger than females are more heavily preyed upon by fishing, with the recruitment of only the smaller males. First maturation length for both sexes resulted in 11.5 mm – carapace length - (11.5 mm in males and 11.2 mm in females). Reproduction in M. amazonicum is continuous or periodic a gradual increase during the months from October to March. The most common sites housed, as inner regions of tidal channels or holes (common in Amazon estuary) sites are preferentially sought by mature females for spawning and juvenile growth. Von Bertalanffy growth parameters obtained were very similar between the sexes, where L ∞ = 44.8 mm and K = 0.35 for males and L ∞ = 46.5 and K = 0.31 for females. Mortality and exploitation obtained was in maximum sustainability and the management should be treated fairly care. In this situation, any increase in effort may result a state of over-exploitation of growth. Allied to near commitment of the stocks of M. amazonicum of the socio economic fishing is no different from other systems of coastal fishery Para: poor education, poor performance of professional associations, chain productive complex and that its main underprivileged. We suggest the statistical monitoring of production, the delineation of the minimum capture length in 4.5cm; suppression of fishing with matapis in headwater areas of creeks and tidal channels, a census of users and the use of models bioeconomic that include major aspects of its biological and productive chain.
Acesso aberto (Open Access)
"Estava pescando de malhadeira, vi na praia uns cascos brilhando, era luar, abeirei a terra e fui pegar": práticas de pesca de quelônios na várzea Amazônica (Santarém-PA)
(Universidade Federal do Pará, 2013) BARBOZA, Roberta Sá Leitão; BARBOZA, Myrian Sá Leitão; PEZZUTI, Juarez Carlos Brito
The present article analyzes the turtle poaching techniques used in a Amazon floodplain area of Santarém, north of Brazil. Our interests included the local ecological knowledge involved, selectivity and seasonal and spatial variations on the technique choice. The data were collected between May 2006 and June 2008 through informal conversations, monitoring of fishing activity and participant observation of turtle fishing in the communities of Ilha de São Miguel, Costa do Aritapera and ÁguaPreta. We found a broad combination of different techniques based on deep and detailed knowledge of the river turtle species natural history, including the influence of the hydrological cicle on the feeding, movement and reproductive behavior. The fishermen recognize seasonal variations and, combined with local knowledge, use this information when selecting the technique to be used to catch turtles. We encourage the implementation of participatory management for the sustainable use of river turtles in the study area, and suggest the alternative of establishing rules based on techniques and periods of the year.
Acesso aberto (Open Access)
Etnoecologia da pesca na Reserva Extrativista Riozinho do Anfrísio - Terra do Meio, Amazônia, Brasil
(Universidade Federal do Pará, 2012) BARROS, Flávio Bezerra
This article presents some ethnoecological aspects of the fishing activity in Riozinho do Anfrísio Extractive Reserve, a protected area (PA) located in the municipality of Altamira, State of Pará, Brazil. This PA was created in 2004 through a joint initiative of the riverines and Transamazonian Highway and Xingu social movements. Fishing is one of the most important productive activities in this extractive reserve. By using ethnoecological methods this study addresses the cosmologies and the knowledge related to the use of fish for subsistence and commercial purposes. Our results showed that the riverine people demonstrate a high level of knowledge regarding their ecosystems and the fish biodiversity, which must be considered part of the local biocultural heritage. This knowledge must be also integrated in the conservation strategies taken place in that region.
Acesso aberto (Open Access)
Etnoecologia, pesca e manejo comunitário de quelônios aquáticos na várzea do Baixo rio Amazonas
(Universidade Federal do Pará, 2012-11-13) BARBOZA, Roberta Sá Leitão; MCGRATH, David Gibbs; http://lattes.cnpq.br/4373475491613670; PEZZUTI, Juarez Carlos Brito; http://lattes.cnpq.br/3852277891994862
The aim of the present study was to describe, record and compare community management strategies for aquatic turtles in three communities of the Santarém floodplains, in the north of Brazil. Turtle consumption was also assessed in terms of preferences, rejections, food taboos and their use in popular medicine as a therapeutic resource. The turtle fishing techniques used were described, including seasonal and spatial variations, as were the species captured and the technique selection process, based on local knowledge. The income from fishing and the association between investment and return were assessed. The data were collected between June 2007 and July 2008. Informal conversations, monitoring of fishing activity and participant observation were carried out in the communities. Semistructured interviews, based on the dietary recall method (recall history), were also performed. These interviews recorded annual turtle consumption as well as memories of turtle fishing in the past. The first reports of turtle management in the Amazon region were made at the time of the first contact between Amerindians and Europeans. During the 1970’s, the Brazilian government implemented reforms based on centralized management controlled by the State. Currently, co-management exists in various locations of the Amazon region, such as the communities of Ilha de São Miguel, Costa do Aritapera and Água Preta. Although guided by community demand, the management of these three communities differs due to different levels of experience with management systems. On Ilha de São Miguel, turtle management has been present for almost 40 years, with a certain degree of success and vigor. Management techniques were established in Água Preta 22 years ago in a less rigorous manner. The recent implementation in Costa do Aritapera was not successful. In general, the inclusion of the main users of a natural resource in its management is difficult to execute. The great challenge for turtle management, as well as other wildlife resources in the Amazon region, is legal recognition of their use. Turtle consumption is a tradition rooted in Amazonian culture. However, it has been criminalized and as such, the majority of the population is constrained from doing so. As it is considered an illegal activity, there are no estimates of the quantity of animals exploited. This causes problems to those who want to implement sustainable methods of community management. Studies have shown that fish constitutes the main source of animal protein for the people of the Amazon region, whereas records of turtle consumption are relatively low. Differences were found in terms of the species of turtle consumed. In general, tracajá (Podocnemis unifilis) (meat and eggs) was the most commonly consumed species in the three communities, followed by pitiu (Podocnemis sextuberculata) (meat and eggs), which was mainly consumed in Costa do Aritapera. Turtles (Podocnemis expansa) are rarely consumed and there were no records of their eggs being collected. This meat is mainly consumed on Ilha de São Miguel. These differences could be associated with a combination of ecological factors and the management history of each community. No cultural differences were found between the communities in terms of the use of turtles. Podocnemis expansa, which is principally used in popular medicine, is the most rejected species whereas tracajá and pitiu are generally preferred. All three are considered to be “reimoso”. The most captured species was tracajá, followed by pitiu and tartaruga in lesser proportions. Tracajá can be found in different environments and collected at any time of the year in the three communities. Pitiu are mainly captured around Costa do Aritapera in periods of low water season. At this time, they are migrating from flooded forests areas in the direction of rivers and nesting beaches. Tartaruga are caught in the protected lakes of Ilha de São Miguel in times of flood. The fishing techniques employed vary depending on the level of the river. The fishermen recognize seasonal variations and, combined with local knowledge, use this information when selecting the technique to be used to catch turtles. Turtle fishing is usually carried out in a timely manner, during fishing expeditions. The yield of turtle fishing is greater when fish are not included and fishing by hand. Fishing by hand was more fruitful. Selective fishing aimed at capturing larger animals produced greater returns in terms of biomass. The yield based on CPUEN differed between the communities and the fishing periods in the present study, although there were no significant differences when biomass was calculated (CPUEB). The fishermen, in general, are not concerned with maximizing their income, because most fisheries are not for marketing. The yield reflects more the wisdom of a good fishing spot than the effort of displacement.When the patch was good fishermen spent little time while in less productive patches they spent more time. The present study suggests a number of ideas that could be adopted in order to facilitate the success of fauna community management. In the specific case of turtles, it is recommended that protected areas extend beyond the nesting areas and a quota system is introduced to take advantage of eggs that will be lost. There is a possibility of breeding commercialization.
Acesso aberto (Open Access)
Etnografia e manejo de recursos naturais pelos índios Deni, Amazonas, Brasil
(Instituto Nacional de Pesquisas da Amazônia, 2009-03) PEZZUTI, Juarez Carlos Brito; CHAVES, Rodrigo Pádua
Studies concerning the use of multiple natural resources by Amazonian indians are scarce. This work presents a portrait of how the Deni Indians, inhabitants of an area between two of the most important white-water rivers of the Amazon basin (Juruá and Purus Rivers), exploit natural resources in their territory. The Deni exploit both the upland and floodplain forests. They are a mix of horticulturalists and hunter-gatherers, using their whole territory to obtain what they need to live. As a rule, they move their settlements periodically, avoiding local resource depletion. The Deni modify the landscape at a local level, causing an increase in resource availability. Abandoned villages, fruit orchards and crops are places where floristic and faunistic resources concentrate and are systematically exploited. The impacts of such management are apparently minimal. For the Deni society natural resources are the only way to get goods for survival, but it is inserted in the periphery of a capitalist system which exploits and will continue to exploit natural resources in order to produce a surplus for the acquisition of industrialized products, independently of external judgements. This should be the starting point to evaluate sustainability in this local management system.
Acesso aberto (Open Access)
A etnoictiologia de pescadores xikrin da terra indígena Trincheira Bacajá - Pará, Brasil
(Universidade Federal do Pará, 2014) CARVALHO JÚNIOR, Jaime Ribeiro; NAKAYAMA, Luiza; http://lattes.cnpq.br/3771896759209007; ROCHA, Rossineide Martins da; http://lattes.cnpq.br/4371300451793081
This thesis was developed in five villages of the indigenous community Xikrin-Mebêngôkre, which inhabit the Indigenous Land Trincheira Bacajá - ILTB, Pará, Brazil. The overall objective was to analyze by ethnoictiology, the various ecological, cognitive and behavioral aspects of fishermen, aiming to understand the basic interactions that this community has with fish stocks and other elements of the ecosystems in ILTB. With the proper permits, the research was conducted between the months of April 2011 to April 2013, in seven trips to five villages, totaling 153 days. The information was obtained through ethnoictiological and ethnoecological approaches and employing a set of methods related to participatory research. The study included 103 Indians aged 15-84 years and residents of villages: Mrotidjãm; Bakajá; Pytakô; Pat-Kro and Pykayakà. According to the knowledge of Xikrin, the aquatic resources perceived by them in the ngo (water) field and used most often are made up of toe (fish) and they allowed to generate an ethnotaxonomical list consisting of 144 fish species that were grouped into four categories (consumption, commercial, bait and handicrafts) according to the diversity of use in ILTB, with 135 species declared for consumption (94% of total); it is noteworthy that there is overlap among species usages, ie, some fish have multiple functions and are used in different ways, however, the primary function is the protein source, ensuring family livelihood. According to the seasonality, this diversity of fish occurred in at least 26 preferred microhabitats. The waki (screen) mode was used in all seasonal periods and opportunely was built in ILTB an ethnoecological seasonal calendar, which were summarized the close connections of the biotic and abiotic components existing in the region. In these ethnoictiological records of species of cultural importance Xikrin represent the first steps towards understanding the process of use of fish and it is considered that the continuity of this knowledge, sayings and doings Xikrin, acquired over many years and passed by mebengêt (old) are indispensable to the daily life of the entire population speaker and reader of language Mebêngôkre, not only for survival and empowerment of the communities, but also for the intrinsic value of belonging and being Xikrin.
Acesso aberto (Open Access)
Genética de populações de pirarucus (Arapaima gigas) da Reserva Mamirauá e considerações sobre estrutura genética para a espécie
(Universidade Federal do Pará, 2008-10-24) SILVA, Juliana Araripe Gomes da; SCHNEIDER, Horacio; http://lattes.cnpq.br/3621033429800270
The pirarucu (Arapaima gigas) is an important fishing resource in the Amazon which has been exploited since the XIXth century. There are indications of a decrease in population size in some parts of its distribution. Management is one of the strategies adopted to maintain fishing activity associated to the conservation of the species. We evaluate aspects of pirarucu populations in two places in the Mamirauá Reserve (Jarauá and Maraã), and compare these populations with those of Santarém and Tucuruí, analyzing their genetic variability and structure. In order to achieve this, seven microsatellite loci were genotyped for 463 pirarucus from Mamirauá Reserve collected along five years. Our results show a greater genetic diversity for this population in comparison to populations from Santarém and Tucuruí. Analyses indicate that management has been ecologically efficient, since there were no significant change in genetic diversity over the five years of study. Lateral migration, associated with a possible standardized return to lakes without spacial fidelity seems to have great importance for local genetic admixture. However, this admixture is limited in space, with a small degree of genetic differentiation seem between pirarucus from Jarauá and Maraã. When including more distant localities to the analysis, the differentiation is greater though geographic distance cannot explain all of this. We believe that a population decline in intermediate localities, probably caused by overexploiting is influencing the connectivity among the localities studied.
Acesso aberto (Open Access)
Geotecnologias aplicadas ao ordenamento territorial pesqueiro industrial do estuário amazônico
(Universidade Federal do Pará, 2012-06-12) SILVA, Christian Nunes da; ALMEIDA, Oriana Trindade de; http://lattes.cnpq.br/0325909843645279; MCGRATH, David Gibbs; http://lattes.cnpq.br/4373475491613670
The present work aims to reflect on the fishing activity geographically, with some categories of territorial analysis that can be worked in fishing, taking into consideration the livelihoods of fishermen, the territorial scope of its influence on fisheries and the mechanisms of spatial representation in environment computer that are currently available, capable of achieving the spatial patterns of coverage. This analysis was based on the consideration that the fishery is of utmost importance for the supply of urban centers, the main source of livelihood and income of populations of fishers in the Amazon region. New methodological procedures and technological processes have generated a significant fishing increasing both the apparent exhaustion of resources, and the recognition and functional protein, fish products that have gained in recent years, as a means of proper nutrition for the maintenance of quality of the consumer. Thus, the main objective of this study is to verify and discuss the feasibility of using geotechnology in the current planning model that can be seen fishing in the Amazon region, seeking to understand how this land use in fishing may include: geo; information about equipment fishing used to catch fish, knowledge of fishermen and the Brazilian legislation. Literature searches and field (in the Caeté bay and river Ituquara, Pará state), integrated to work in the laboratory, using geoprocessing techniques of remote sensing products allow mapping the dynamic moment of some socio-spatial relationships and structural by passing fishing, so it is important to focus on mechanisms of assistance to the planning of fishery resources. The technology called “geoinformation” science, has shown greater visibility in environmental studies and therefore should be included in the fishing industry as an important mechanism for monitoring, surveillance and research for the future management strategies.