Results 71 to 80 of about 1,091 (168)

Diel variation in fish assemblages in tidal creeks in southern Brazil

open access: yesBrazilian Journal of Biology
Tidal creeks are strongly influenced by tides and are therefore exposed to large differences in salinity and depth daily. Here we compare fish assemblages in tidal creeks between day and night in two tidal creeks in southern Brazil. Monthly day and night,
JF. Oliveira-Neto   +3 more
doaj   +1 more source

Bioacumulação de Mercúrio em Quatro Espécies de Peixes Tropicais Oriundos de Ecossistemas Estuarinos do Estado do Rio de Janeiro, Brasil [PDF]

open access: yesAnuário do Instituto de Geociências, 2010
A bioacumulação de mercúrio foi investigada em quatro espécies de peixes (Genidens genidens, Aspistor luniscutis, Haemulon steindachneri e Micropogonias furnieri) oriundos da Baía da Ribeira e Baía de Guanabara (Estado do Rio de Janeiro).
Zuleica Carmen Castilhos   +4 more
doaj  

Artisanal fisherfolk’s Local Ecological Knowledge on catfish and fishing legislations: a necessary dialog [PDF]

open access: yesAmbiente & Sociedade
The presence of catfish of the Ariidae family in the list of endangered species of Rio Grande do Sul (RS), as from 2014, led to forbidding fishing two species of this family.
Sammer Maravilha Chagas Gilio-Dias   +3 more
doaj   +4 more sources

Caracterização da ictiofauna demersal de duas áreas do complexo estuarino de Paranaguá, Paraná, Brasil [PDF]

open access: yes, 2007
Mudanças temporais e espaciais na composição e estrutura das comunidades de peixes demersais foram analisadas nas Baías de Paranaguá e Laranjeiras, Complexo Estuarino de Paranaguá, Paraná, Brasil.
Queiroz, Guilherme MacLaren Nogueira de   +4 more
core   +1 more source

Morphometric analysis of lapillus otoliths in two estuarine bioindicator catfish (Siluriformes, Ariidae) from a marine protected area in Brazil

open access: yesOcean and Coastal Research
Some fish species can be used as target species and bioindicators of environmental disturbances. In this context, biological indicators such as the length, weight, and height of lapillus otoliths of the ariid species Cathorops spixii and Genidens ...
Igor Morais   +2 more
doaj   +2 more sources

FECUNDIDADE E INCUBAÇÃO DOS BAGRES MARINHOS (OSTEICHTHYES, ARIIDAE) DO COMPLEXO ESTUARINO LAGUNAR DE CANANÉIA (25ºS,48ºW)

open access: yesBoletim do Instituto de Pesca, 2018
Mais de 2/3 dos 185 (83,66%) bagres marinhos das espécies Arius spixii, Genidens genidens, Sciadeichthys luniscutis e Netuma barba apresentaram assimetria gonadal em relação ao número de óvulos.
Motoi MISHIMA, Shitiro TANJI
doaj  

Estudo de espécies de pescado potencialmente aproveitáveis na cadeia produtiva do litoral sul do Estado do Rio de Janeiro

open access: yesRevista Verde de Agroecologia e Desenvolvimento Sustentável, 2015
No Rio de Janeiro, a produção de pescado ocorre de maneira ampla em contingente de espécies, porém, algumas se encontram em situação de sobrepesca, tornando-se importante o estudo de espécies potencialmente aproveitáveis do ponto de vista nutricional ...
A. L. A. Jamas   +4 more
doaj   +1 more source

Use of fishing resources by women in the Mamanguape River Estuary, Paraíba state, Brazil

open access: yesAnais da Academia Brasileira de Ciências, 2012
We evaluated the appropriation and use of fishing resources by women residing near the Mamanguape River Estuary (MRE), Paraíba state, Brazil. Were used combinations of qualitative (interviews and direct observations) and quantitative methods (use value ...
Michelle S.P. Rocha   +4 more
doaj  

Feeding habits and behaviour of Bagre bagre and Genidens barbus, two ariid catfishes (Pisces: Siluriformes) from southeastern Brazil

open access: yesJournal of Threatened Taxa, 2017
The feeding habits and behaviour of adult specimens of Bagre bagre (Linnaeus, 1766) and Genidens barbus (Lacepède, 1803), both targets of commercial fisheries in coastal southeastern Brazil, were evaluated through stomach content analysis.  These catfish
Maria Thereza Manhães Tavares   +1 more
doaj   +1 more source

Changes in assimilation of C3 marsh plants by resident fishes in estuarine systems with distinct hydrogeomorphology features.

open access: yesFrontiers in Marine Science, 2015
Although saltmarshes are widely recognized as important habitats providing shelter for estuarine organisms and protection against predators, there is still no consensus on the trophic value of marsh plants for estuarine food webs.
Adna Ferreira Garcia
doaj   +1 more source

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