Results 21 to 30 of about 117 (89)
Revista 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
Brazilian Journal of Oceanography, 2012 Different components of the mixed function oxidase (MFO) system and the levels of fluorescent aromatic compounds in bile (FACs) were measured in Cathorops spixii in order to assess the impact of polycyclic aromatic hydrocarbons (PAHs).
Juliana Souza Azevedo +6 more
doaj +1 more source
Assessing Fish Community Structure and Diversity Across Environmental Gradients in a Tropical Bay
Marine Ecology, Volume 46, Issue 2, March 2025.ABSTRACT Understanding the relationship between species distribution and the environment across spatial gradients is crucial for biodiversity evaluation. We surveyed fish populations in a tropical bay, covering a spatial gradient from the outer zone with favorable marine conditions to the inner zone affected by human activities.
Leonardo Almeida Freitas +1 more
wiley +1 more source
Effects of freezing on the carbon and nitrogen stable isotopic compositions of fish tissues [PDF]
Acta Limnologica BrasiliensiaStable isotope analysis is a vital tool for elucidating nutrient flow within food chains. Studies utilizing this methodology must consider potential variables that could influence the δ13C and δ15N values of the species being examined.
Luciana Mulero Beloto +4 more
doaj +1 more source
Chave para identificação das espécies de bagres marinhos (Siluriformes, Ariidae) da costa brasileira
Boletim do Instituto de Pesca, 2018 A identificação das espécies de bagres marinhos da família Ariidae é problemática devido í presença de poucas características externas que permitam uma diagnose segura da espécie.
Alexandre P. Marceniuk
doaj
Bulletin of Marine and Coastal Research, 2016 During 1994, the catfish "chivo mapalé" (Cathorops spixii) was the second most abundant fishing resource in the "Ciénaga Grande de Santa Marta" and the "Complejo de Pajarales", the main lacustrine-estuarine system of Colombia. Using commercial catch statistics and fishing explorations, the population parameters were determined reproductive cycle ...
Tíjaro, Rocío +2 more
openaire +2 more sources
Histopathological Changes in Estuarine Catfish: A Temporal Approach in a Marine Protected Area
Brazilian Archives of Biology and TechnologyThe Cananéia-Iguape Estuarine-Lagoon Complex (CIELC) is an area of low anthropogenic impact; however, it is not completely isolated from human pressure, particularly in the northern sector.
Vinícius Coelho Goes +2 more
doaj +1 more source
Diel variation in fish assemblages in tidal creeks in southern Brazil
Brazilian Journal of BiologyTidal 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
Brazilian Journal of Oceanography, 1996 This study was performed in the lower saltmarsh system of the Arrozal, in the Cananéia lagoon estuarine region (25º02'S - 47º56'W), Brazil. Suprabenthic fauna was surveyed Wlth a small sledge and fishes were captured with casting and set nets to analyse:
Yoko Wakabara +2 more
doaj +1 more source
Analysis of the 90º and 150º angles for increment counting in otoliths of estuarine catfish
Ocean and Coastal ResearchFish age can be estimated with the use of age rings in calcified structures, such as otoliths. However, it is important to select an appropriate axis for counting the number of increments and to confirm that the age rings are visible in the otolith and ...
Igor Souza de Morais +1 more
doaj +2 more sources