11 |
The new invasive Odontites serotina: impacts, responses and predictive modelKennedy, Bradley 05 January 2012 (has links)
Invasive alien species (IAS) pose a serious threat to ecosystems and societies worldwide. Local ecological knowledge (LEK) is increasingly valued as a means of understanding environmental issues; however, its application in the context of IAS research has been limited. The overall objective of this study was to document the LEK of farmers and Weed Supervisors to gain insight into a recent IAS, Odontites serotina. I conducted semi-structured interviews with farmers and Weed Supervisors with O. serotina management experience. Results indicated that the socio-economic impacts for farmers were severe in affected rural communities. However, participants had developed promising control techniques, including the application of compost mulch. I used this LEK as well as data on species occurrence, environmental variables, and measures of propagule pressure to forecast the potential distribution of O. serotina across Manitoba. The risk map generated will be useful for guiding future monitoring and public outreach efforts.
|
12 |
The new invasive Odontites serotina: impacts, responses and predictive modelKennedy, Bradley 05 January 2012 (has links)
Invasive alien species (IAS) pose a serious threat to ecosystems and societies worldwide. Local ecological knowledge (LEK) is increasingly valued as a means of understanding environmental issues; however, its application in the context of IAS research has been limited. The overall objective of this study was to document the LEK of farmers and Weed Supervisors to gain insight into a recent IAS, Odontites serotina. I conducted semi-structured interviews with farmers and Weed Supervisors with O. serotina management experience. Results indicated that the socio-economic impacts for farmers were severe in affected rural communities. However, participants had developed promising control techniques, including the application of compost mulch. I used this LEK as well as data on species occurrence, environmental variables, and measures of propagule pressure to forecast the potential distribution of O. serotina across Manitoba. The risk map generated will be useful for guiding future monitoring and public outreach efforts.
|
13 |
A pesca artesanal e as tartarugas marinhas no litoral paraibano: aspectos etnozoológicos e conservacionistasNogueira, Moyra Mariano 24 February 2015 (has links)
Submitted by Maria Suzana Diniz (msuzanad@hotmail.com) on 2015-11-03T15:03:09Z
No. of bitstreams: 1
arquivototal.pdf: 4451269 bytes, checksum: f9b87e98dd454fb08074cecc188cc469 (MD5) / Made available in DSpace on 2015-11-03T15:03:09Z (GMT). No. of bitstreams: 1
arquivototal.pdf: 4451269 bytes, checksum: f9b87e98dd454fb08074cecc188cc469 (MD5)
Previous issue date: 2015-02-24 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / Sea turtles have a long history of human exploitation around the world who have
contributed to the population decline of the species, along with other threats, especially the
accidental capture by various types of fishing. Ethnobiological research can provide important
information to understand the context of exploitation / interaction of these animals to people.
The research was conducted with the localized fishing communities in the Penha Beach and
Estuary Mamanguape River (ERM). Data were obtained through a structured questionnaire and
semi-structured and free interviews. The questionnaire elicited socioeconomic data on the
fishing techniques used, the fishermen's knowledge about sea turtles, incidental capture of
events involving these animals and a projective test, with illustrations of the species. Were
prepared Local Ecological Knowledge Indicators (LEK) and Conservation Attitudes for
fishermen. Our results show that the incidental capture of sea turtles is mainly related to gill net
technique. In this technique, large nets catch more turtles accidentally. Recommendations to
reduce the incidental capture and mortality of sea turtles are presented. Respondents fishermen
recognize the different species of sea turtles that occur in the studied areas. The fishermen
showed high ecological knowledge about sea turtles, demonstrated by high values in CEL
indicator. The results show that knowledge is not evenly distributed among the fishermen of
each community, there are experts in the field at each site. The Conservation Attitudes indicator
showed a high predisposition to conservation in the two communities. Were also discussed food
taboos, medicinal and traditional use of sea turtles. / Tartarugas marinhas tem longo histórico de exploração humana em todo o mundo, que
têm contribuído para o declínio populacional das espécies, juntamente com outras ameaças, com
destaque para a captura acidental por diversos tipos de pesca. Pesquisas etnobiológicas, como
esta, podem fornecer informações importantes para compreender o contexto de
exploração/interação desses animais com as pessoas. A pesquisa foi realizada junto às
comunidades de pescadores localizadas na Praia da Penha e no Estuário do Rio Mamanguape
(ERM). Os dados foram obtidos através de questionário estruturado e entrevistas semiestruturadas
e livres. O questionário levantou dados socioeconômicos, sobre as técnicas de
pesca utilizadas, o conhecimento dos pescadores sobre as tartarugas marinhas, eventos de
captura incidental envolvendo esses animais e um teste projetivo, com ilustrações das espécies.
Foram elaborados Indicadores de Conhecimento Ecológico Local (CEL) e de Atitudes de
Conservação para os pescadores. Nossos resultados apontam que a captura acidental de
tartarugas marinhas está relacionada principalmente à técnica de rede de espera. Nesta técnica,
as redes de malha grande capturam mais tartarugas acidentalmente. São apresentadas
recomendações para redução da captura incidental e mortalidade de tartarugas marinhas. Os
pescadores entrevistados reconhecem as diferentes espécies de tartarugas marinhas que ocorrem
nas áreas estudadas. Parte dos pescadores mostrou elevado conhecimento ecológico sobre
tartarugas marinhas, demonstrado por valores elevados no Indicador de CEL. Os resultados
mostram que o conhecimento não está uniformemente distribuído entre os pescadores de cada
comunidade, há especialistas no assunto em cada local. O Indicador de Atitudes de Conservação
mostrou uma alta predisposição para conservação nas duas comunidades. Foram discutidos
ainda tabus alimentares, uso medicinal e artesanal de tartarugas marinhas.
|
14 |
Etnobiologia do boto cinza (Sotalia guianensis, van B?n?den, 1864) por comunidades pesqueiras do Rio Grande do Norte, BasilManzan, Ma?ra Fontes 29 October 2012 (has links)
Made available in DSpace on 2014-12-17T14:33:08Z (GMT). No. of bitstreams: 1
MairaFM_DISSERT.pdf: 3093445 bytes, checksum: d2ae875fa255d63d74d4dd7eb217d9f0 (MD5)
Previous issue date: 2012-10-29 / Ethnobiology studies Local Ecological Knowledge (LEK) as well as the use and
management of natural resources by local communities in order to understand how the
environment is perceived, known and classified by human groups. In fishing communities,
LEK adds empirical information about the biology of aquatic species and complements
scientific findings, especially when it is difficult to obtain factual information during
studies on cetaceans, whose behavior is essentially underwater. Cetaceans (whales and
dolphins) are constantly threatened by human activities, especially by accidental capture of
small coastal species, as in the case of the estuarine dolphin (Sotalia guianensis), object of
this study. Ethnobiological researches in fishing communities are of great importance and
can clarify aspects of the biology and conservation of this species. Although extensively
studied throughout its distribution range, there are still gaps in the knowledge about S.
guianensis. Therefore, fishers local ecological knowledge becomes an additional tool to
get and confirm information about S. guianensis. This study evaluated the LEK of artisanal
fishers who are daily exposed to local population of S. guianensis, through the use of semistructured
interviews (N=116). The interviewed fishers were asked about the biology and
popular classification of S. guianensis and about possible interactions between this dolphin
and them. The studied communities were located in Tibau do Sul (n=39), Pipa (n=36) and
Ba?a Formosa (n=41), all on the south coast of Rio Grande do Norte, Brazil. The study was
based on the assumption that differences in fishers LEK among those communities would
be caused by both the variety of fishing environments (lagoon/estuary and ocean) and the
intensity of tourism activities. Fishers knowledge is expressive and differed among the
studied communities depending on the topic investigated. Fishers correctly reported the
habitat, distribution, seasonality and behavioral particularities of S. guianensis. Tourism
mainly affected the naming of the species. The study results also suggest that marine
fishers have greater knowledge about the species than the estuarine/lagoon ones. Local
populations accumulate empirical knowledge according to their environment. Hence, it is
important to take into account both empirical knowledge and popular participation in
management systems, in order to maintain information sharing among communities / A etnobiologia estuda o Conhecimento Ecol?gico Local (Local Ecological Knowledge
LEK) e o uso e gest?o de recursos naturais por comunidades locais visando compreender
como o ambiente ? percebido, conhecido e classificado por grupos humanos. Em
comunidades de pescadores artesanais, o LEK agrega informa??es emp?ricas a respeito da
biologia de esp?cies aqu?ticas e pode complementar os achados cient?ficos, especialmente
em situa??es de dif?cil obten??o de dados, como em estudos sobre os aspectos
comportamentais essencialmente submersos de cet?ceos. Os cet?ceos, representados
pelas baleias e golfinhos, constantemente s?o alvos de atividades antr?picas, destacando-se
a captura acidental de esp?cies costeiras de pequeno porte, a exemplo do boto cinza
(Sotalia guianensis), objeto deste trabalho. Estudos etnobiol?gicos em comunidades
pesqueiras s?o de grande import?ncia e possibilitam esclarecer aspectos da biologia e
conserva??o desta esp?cie. Embora bastante estudado ao longo de sua distribui??o, ainda
existem diversas lacunas no conhecimento sobre S. guianensis. Nesse sentido, o LEK de
pescadores artesanais, torna-se uma ferramenta adicional, podendo confirmar e at?
acrescentar informa??es sobre a esp?cie. Este trabalho investigou o LEK de pescadores
artesanais, expostos diuturnamente a popula??es residentes de S. guianensis, por meio de
116 entrevistas semi-estruturadas. Os pescadores foram indagados a respeito da biologia e
classifica??o do S. guianensis, al?m de poss?veis intera??es com a esp?cie. As
comunidades estudadas foram Tibau do Sul (n=39), Pipa (n=36) e Ba?a Formosa (n=41),
todas localizadas no litoral sul do Estado do Rio Grande do Norte, Brasil. Pressup?s-se que
haveria diferen?as entre as comunidades em rela??o ao LEK dos pescadores, devido tanto ?
diversidade dos ambientes pesqueiros (lagunar e marinho), quanto ao grau de interfer?ncia
do turismo. Constatou-se que o conhecimento dos pescadores ? apurado, embora difira
conforme a comunidade estudada. Os pescadores entrevistados informaram corretamente
caracter?sticas gerais do S. guianensis como aspectos morfol?gicos, habitat, distribui??o,
sazonalidade e aspectos comportamentais. Observou-se que houve interfer?ncia do turismo
sobretudo na designa??o popular da esp?cie. Os resultados tamb?m sugerem que
pescadores de ambiente marinho possuem maior conhecimento sobre a esp?cie.
Evidenciou-se que popula??es locais acumulam conhecimento de acordo com o ambiente
que utilizam, o que torna importante levar em considera??o o conhecimento local e a
participa??o popular nos sistemas de manejo de forma a manter este compartilhamento de
informa??es com pesquisadores e gestores
|
15 |
Etnoictiologia como ferramenta para uma gestÃo pesqueira participativa e sustentÃvel / Ethnoichthyology as a tool for participatory management of fishery resourcesLiane Marli Silva de AraÃjo 30 August 2013 (has links)
FundaÃÃo Cearense de Apoio ao Desenvolvimento Cientifico e TecnolÃgico / Esse estudo teve como objetivo geral investigar as relaÃÃes estabelecidas entre os pescadores do litoral leste do Cearà e os recursos pesqueiros no que diz respeito ao conhecimento ecolÃgico local (CEL) sobre a ictiofauna e as tÃcnicas de pesca para capturar as espÃcies. Especificamente, foram investigados os pescadores da praia de Redonda, municÃpio de Icapuà (CE), e as espÃcies de peixes mais exploradas por eles. A localidade foi escolhida pelo fato dos pescadores serem referÃncia por praticarem uma pesca responsÃvel, ou seja, em consonÃncia com os princÃpios da sustentabilidade. Para coleta de dados foram utilizados mÃtodos qualitativos e quantitativos à luz da
Etnoictiologia, a qual trata das interaÃÃes entre os seres humanos e os peixes. As tÃcnicas de pesquisa utilizadas foram: amostragem âbola de neveâ; observaÃÃo direta; turnÃs guiadas; entrevistas abertas; e questionÃrios estruturados e semi-estruturados. A pesquisa contou com a participaÃÃo direta de 30 pescadores e de respondentes da comunidade em geral. Os resultados mostraram que os pescadores de Redonda realizam
uma pesca artesanal, geralmente em embarcaÃÃes à vela, utilizando instrumentos simples e que a pesca constitui-se como uma atividade econÃmica, sociocultural e de subsistÃncia. As espÃcies de peixes mais capturadas (de maior valor de uso) foram cavala (Aconthocybium solandri); biquara (Haemulon plumierii) e serra (Scomberomorus brasiliensis). Sugere-se que sejam adotadas medidas mÃnimas do comprimento para captura dessas espÃcies. O estudo aponta a necessidade da criaÃÃo de
seguro defeso para peixes da famÃlia Lutjanidae: cioba, dentÃo, guaiuba, pargo e ariacÃ. Essas informaÃÃes sÃo importantes para a elaboraÃÃo de planos de manejo e conservaÃÃo dos recursos pesqueiros, alÃm de subsidiar a tomada de decisÃo visando promover a gestÃo sustentÃvel da pesca. / This study aimed to investigate the relations between the Cearà coastal fishermen and fisheries resources with respect to the local ecological knowledge (LEK) about fish and fishing techniques. Specifically, we investigated the fishermen from Redonda Beach, in the municipality of Icapui (CE), and the fish species harvested by them. This location
was chosen because those fishermen carries on the responsible fishing, that is aligned to the sustainability principles. For data collection, we used qualitative and quantitative methods in the light of ethnoichthyology, which deals with the interactions between humans and fish. The research techniques used in this study were the
following: "snowball"sampling ; direct observation, guided tours, open interviews, and semi-structured and structured questionnaires. The survey was applied to the Redonda
fishermen and 30 persons from the community. The results showed that Redonda fishermen have practiced artisanal fishing, usually in sailing vessels, using relatively simple tools, and that fishing is an economic, sociocultural and subsistence activity for them. The fish species most havested (and showing higher use value) were
cavala (Aconthocybium solandri); biquara (Haemulon plumierii) and serra (Scomberomorus brasiliensis). We suggest that policy measures should be adopted for
those species such as minimum harvesting season. The study points out the need for creating spawning season for the Lutjanidae fish family: cioba, dentÃo, guaiuba, pargo
e ariacÃ. This information is important for developing fisheries resource management and conservation plans, in addition to supporting the decision making to promote the
fisheries sustainable management on the coast of CearÃ.
|
16 |
Where Are All the Bonefish? Using Angler Perceptions to Estimate Trends of Bonefish (Albula vulpes) Decline in South FloridaKroloff, Emily K.N. 08 July 2016 (has links)
Local ecological knowledge (LEK) is a useful method to capture environmental or resource changes when there is an absence of biological data. Since the bonefish fishery is data limited, this study aims to understand the trend of bonefish decline over the last 40 years using LEK and to assess whether varying fisher experience and fisher type would influence perception of bonefish decline. Semi-structured surveys and key informant interviews were conducted to collect LEK data. Along with perceiving an overall decline (p
|
17 |
Vulnerabilidade e capacidade adaptativa na pesca artesanal costeira do estado de São Paulo frente às mudanças ambientais locais e globais / Vulnerability and adaptive capacity in small-scale coastal fishing of São Paulo state in face of local and global environmental changeSilva, Luziana Garuana de Souza, 1979- 04 July 2014 (has links)
Orientadores: Cristiana Simão Seixas, Leila da Costa Ferreira / Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Filosofia e Ciências Humanas / Made available in DSpace on 2018-08-24T10:16:42Z (GMT). No. of bitstreams: 1
Silva_LuzianaGaruanadeSouza_D.pdf: 3965871 bytes, checksum: 13044880e3bd1bec1e1e63efb6a86a22 (MD5)
Previous issue date: 2014 / Resumo: Transformações biofísicas nos solos, nos oceanos e na atmosfera provocados por atividades humanas e processos naturais, têm aumentado consideravelmente desde o início do século XX. Estas transformações e mudanças na estrutura e função de sistemas socioecológicos podem ser percebidas por populações humanas. As comunidades de pescadores artesanais de Ubatuba, estado de São Paulo, Brasil, que ainda vivem diretamente dos recursos pesqueiros percebem tais mudanças e têm se adaptado a elas ao longo do tempo, a fim de manter suas subsistências e renda. O conhecimento ecológico local (CEL) a respeito dos sistemas socioecológicos costeiros destas comunidades pode auxiliar na redução da vulnerabilidade e aumento da capacidade adaptativa, em faces de mudanças ambientais globais. Este estudo visa contribuir com informações sobre mudanças ambientais globais, incluindo as mudanças climáticas, bem como seus impactos sobre o ambiente local e as populações humanas, e verificar como populações de pescadores artesanais do litoral norte de São Paulo percebem e se adaptam a tais mudanças. A hipótese considerada neste estudo consiste em que o CEL de pescadores artesanais com relação ao ambiente natural é utilizado para reduzir a vulnerabilidade e aumentar a capacidade adaptativa de comunidades de pesca artesanal costeira frente às mudanças ambientais globais, dentre elas as mudanças climáticas. Os resultados apontam que as comunidades pesqueiras do litoral norte de São Paulo fazem uso do CEL para entender os efeitos das mudanças ambientais nos ecossistemas costeiros, assim como têm capacidade de se adaptarem a tais mudanças ao longo do tempo, diminuindo a vulnerabilidade de sistemas socioecológicos costeiros frente às mudanças ambientais globais. A análise em nível local da percepção de mudanças ambientais e sociais por populações humanas subsidia o entendimento dos efeitos dessas mudanças em ecossistemas complexos e este entendimento pode contribuir para futuros planos de manejo em áreas costeiras brasileiras / Abstract: Biophysical transformations on land, in the oceans and the atmosphere, provoked by human activities and natural processes have increased considerably since the beginning of twentieth century. These changes, with affect the structure and function of coupled socio-ecological systems, are being observed by human society. Coastal fisheries communities of Ubatuba, São Paulo state, Brazil, highly dependent upon fisheries observe such changes and have adapted to them over time in order to maintain communities, livelihood activities and income. The detailed local ecological knowledge (LEK) of these communities regarding coastal socio-ecological systems can help reducing the vulnerability and increasing adaptive capacity, in face of global environmental change. This study contributes with knowledge global environmental change, the impacts on the local environment and human beings and how the communities realize and adapt to these changes. The hypothesis drivinhg study is that LEK of coastal fishers about the natural environment contributes to reduce vulnerability and to increase adaptive capacity in the smll-scale coastal fisheries in the face of global environmental change, including climate change. The findings show that the small-scale coastal fishers of the North coast of São Paulo make use of LEK for understanding the effects of the environmental change on the coastal ecosystems, as well as how they can adapt to such changes over time, thereby reducing the vulnerability of coastal socio-ecological systems in face of global environmental changes. An analytical insight into the local level regarding the perception of environmental and social change are essential to provide a better understanding about the effects of diverse changes in the complex ecosystems. Such understanding can contribute to future design of resources management plans in Brazilian coastal areas. / Doutorado / Aspectos Biológicos de Sustentabilidade e Conservação / Doutora em Ambiente e Sociedade
|
18 |
Sacred Forests and the Social Dimensions of Conservation in the North Pare Mountains of TanzaniaJones, Samantha M. 13 June 2013 (has links)
No description available.
|
19 |
Towards indigenous marine management: a case study of yelloweye rockfish on the central coast of British ColumbiaEckert, Lauren 04 May 2017 (has links)
Coastal Indigenous Peoples worldwide have relied on fish and other marine resources for millennia, and continue to do so despite recent degradation of ocean systems. Their traditional ecological knowledge, comprised of experiences, observations, beliefs, and lifeways, is relevant for modern marine management and conservation. This thesis explores the utility of traditional and local ecological knowledge for extending an understanding of changes over time for places or periods in which scientific data are unavailable.
This thesis had three goals: 1) undertake research that is collaborative and inclusive, and that addresses priorities established by participating First Nations; 2) contribute to fisheries management and conservation recommendations by focusing on a species of cultural importance and exploring the applications of traditional and local ecological knowledge to species-level understandings; and 3) contribute a marine social-ecological case study that investigates the use of traditional and local ecological knowledge to understand change over time and provides appropriate context. Two main objectives allowed me to accomplish my goals: 1) demonstrate the application of traditional and local ecological knowledge to establish historical baselines that extend farther back in time than scientific surveys, and investigate reasons for changes, and 2) investigate the utility of a social-ecological trap framework in assessing impacts to a social-ecological system and identifying ways to escape such a trap.
My case study occurred in collaboration with four First Nations (as many Indigenous Peoples of Canada are called) on the Central Coast of British Columbia, Canada. My methods included semi-structured interviews with knowledge holders to examine traditional and local ecological knowledge of a culturally and economically important species, Yelloweye rockfish (Sebastes ruberrimus). In this study, I interviewed First Nations fishers and Elders (n=43), asking about: observed changes to the body sizes (length) and abundance of this species over the last ~60 years, the factors driving these changes, stewardship principles or traditional management strategies, concerns for marine resources, and perceived opportunities for cultural revitalization. I then quantified the interview participants’ current and historical estimates of size and abundance, compared interview data to current biological survey data, and qualitatively analyzed responses regarding stewardship, culture, perceived threats, and cultural solutions. I utilized the framework of a social-ecological trap to analyze responses about stewardship, traditional stories or management, and threats to culture, selecting illustrative quotes to contextualize the lived experiences of participants.
Overwhelmingly, respondents had observed a decrease in Yelloweye rockfish body sizes since the 1980s. Median historical length observed by participants was nearly twice the modern length. Participants reported substantial decrease in Yelloweye rockfish abundance since the 1980s, and most stated that this change was evident in the early 2000s. Sizes of modern Yelloweye rockfish estimated by participants resembled measurements from ecological data recorded concurrently at the study region. Thus, my study extends baseline historical data of Yelloweye rockfish reliably by about 50 years. Questions about traditional stories and culture revealed the presence of a social-ecological trap created and reinforced by the interplay between species decline and colonization (e.g. the residential schooling system). When asked about traditional management or stewardship practices, only one participant could remember specific traditional stories about Yelloweye rockfish, though all participants expressed adherence to the stewardship principles of taking only what is needed and respecting all life. Though participants expressed concern about the muting of traditional ecological knowledge, culture, and language, they also highlighted key ways towards revitalization and Indigenous resurgence. The ubiquitous presence of stewardship principles suggests there are ways beyond the social trap: participants described on-going cultural revitalization efforts, recovery of depleted species and ecosystems, and the reassertion of Indigenous management rights as ways to overcome problems inherent to the social-ecological trap.
My research adds to a growing body of literature that supports the use of traditional and local
ecological knowledge in marine management and conservation science. Adding to this literature,
my work suggests the significant value of traditional and local ecological knowledge for filling
gaps in historical scientific data or in data-poor regions, and highlights the importance of
appropriately contextualizing Indigenous knowledge. To overcome the social-ecological trap of
knowledge loss and to achieve informed marine management, reassertion of Indigenous management rights and application of traditional management strategies to modern fisheries
management is vital. / Graduate / 0326 / 0768 / 0416 / eckertleckert@gmail.com
|
20 |
Etnoictiologia como ferramenta para uma gestão pesqueira participativa e sustentável / Ethnoichthyology as a tool for participatory management of fishery resourcesAraújo, Liane Marli Silva de January 2013 (has links)
ARAÚJO, Liane Marli Silva de. Etnoictiologia como ferramenta para uma gestão pesqueira participativa e sustentável. 2013. 107 f. : Dissertação (mestrado) - Universidade Federal do Ceará, Pró-Reitoria de Pesquisa e Pós-Graduação, Programa de Pós-Graduação em Desenvolvimento e Meio Ambiente-PRODEMA, Fortaleza,CE, 2013. / Submitted by guaracy araujo (guaraa3355@gmail.com) on 2016-05-09T19:16:07Z
No. of bitstreams: 1
2013_dis_lmsaraújo.pdf: 812644 bytes, checksum: 600526b594b533b682f6ab79e1c9f49b (MD5) / Approved for entry into archive by guaracy araujo (guaraa3355@gmail.com) on 2016-05-09T19:17:49Z (GMT) No. of bitstreams: 1
2013_dis_lmsaraújo.pdf: 812644 bytes, checksum: 600526b594b533b682f6ab79e1c9f49b (MD5) / Made available in DSpace on 2016-05-09T19:17:49Z (GMT). No. of bitstreams: 1
2013_dis_lmsaraújo.pdf: 812644 bytes, checksum: 600526b594b533b682f6ab79e1c9f49b (MD5)
Previous issue date: 2013 / This study aimed to investigate the relations between the Ceará coastal fishermen and fisheries resources with respect to the local ecological knowledge (LEK) about fish and fishing techniques. Specifically, we investigated the fishermen from Redonda Beach, in the municipality of Icapui (CE), and the fish species harvested by them. This location was chosen because those fishermen carries on the responsible fishing, that is aligned to the sustainability principles. For data collection, we used qualitative and quantitative methods in the light of ethnoichthyology, which deals with the interactions between humans and fish. The research techniques used in this study were the following: "snowball"sampling ; direct observation, guided tours, open interviews, and semi-structured and structured questionnaires. The survey was applied to the Redonda fishermen and 30 persons from the community. The results showed that Redonda fishermen have practiced artisanal fishing, usually in sailing vessels, using relatively simple tools, and that fishing is an economic, sociocultural and subsistence activity for them. The fish species most havested (and showing higher use value) were cavala (Aconthocybium solandri); biquara (Haemulon plumierii) and serra (Scomberomorus brasiliensis). We suggest that policy measures should be adopted for those species such as minimum harvesting season. The study points out the need for creating spawning season for the Lutjanidae fish family: cioba, dentão, guaiuba, pargo e ariacó. This information is important for developing fisheries resource management and conservation plans, in addition to supporting the decision making to promote the fisheries sustainable management on the coast of Ceará. / Esse estudo teve como objetivo geral investigar as relações estabelecidas entre os pescadores do litoral leste do Ceará e os recursos pesqueiros no que diz respeito ao conhecimento ecológico local (CEL) sobre a ictiofauna e as técnicas de pesca para capturar as espécies. Especificamente, foram investigados os pescadores da praia de Redonda, município de Icapuí (CE), e as espécies de peixes mais exploradas por eles. A localidade foi escolhida pelo fato dos pescadores serem referência por praticarem uma pesca responsável, ou seja, em consonância com os princípios da sustentabilidade. Para coleta de dados foram utilizados métodos qualitativos e quantitativos à luz da Etnoictiologia, a qual trata das interações entre os seres humanos e os peixes. As técnicas de pesquisa utilizadas foram: amostragem “bola de neve”; observação direta; turnês guiadas; entrevistas abertas; e questionários estruturados e semi-estruturados. A pesquisa contou com a participação direta de 30 pescadores e de respondentes da comunidade em geral. Os resultados mostraram que os pescadores de Redonda realizam uma pesca artesanal, geralmente em embarcações à vela, utilizando instrumentos simples e que a pesca constitui-se como uma atividade econômica, sociocultural e de subsistência. As espécies de peixes mais capturadas (de maior valor de uso) foram cavala (Aconthocybium solandri); biquara (Haemulon plumierii) e serra (Scomberomorus brasiliensis). Sugere-se que sejam adotadas medidas mínimas do comprimento para captura dessas espécies. O estudo aponta a necessidade da criação de seguro defeso para peixes da família Lutjanidae: cioba, dentão, guaiuba, pargo e ariacó. Essas informações são importantes para a elaboração de planos de manejo e conservação dos recursos pesqueiros, além de subsidiar a tomada de decisão visando promover a gestão sustentável da pesca.
|
Page generated in 0.1055 seconds