Results 21 to 30 of about 800 (85)
Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 5, May 2026.ABSTRACT Understanding the dietary dynamics of marine megafauna is essential for interpreting ecological interactions and assessing environmental changes in marine ecosystems. We analysed temporal trends in the diets of eight megafaunal species, comprising marine mammals, seabirds, and sea turtles.
Joao Bosco Gusmao +2 more
wiley +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
Ocular Morphology and Clinical Ophthalmic Parameters of Nile Tilapia Oreochromis niloticus
Veterinary Ophthalmology, Volume 29, Issue 2, March 2026.ABSTRACT Objective To describe the ocular morphological characteristics and establish clinical and ophthalmic reference standards for Nile tilapia. Animals Studied Fresh carcasses were used for diaphanization, optical and electron microscopy, and computed tomography analyses.
Dandara Franco Ferreira da Silva +12 more
wiley +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
, 2005 [[Cathorops Jordan and Gilbert]] The genus Cathorops Jordan and Gilbert is a strongly supported clade of sea catfishes endemic to the New World (Marceniuk, 1997; Betancur-R., 2003; Betancur-R.
Arturo Acero P., Ricardo Betancur-R.
core +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
Toxinologic characterization of marine catfish Cathorops spixii venoms
, 2007 Acidentes com peixes peçonhentos são muito freqüentes na região costeira do Brasil. Os bagres marinhos são os peixes peçonhentos que causam o maior número de acidentes no Brasil, especialmente no litoral sudeste, onde o bagre amarelo Cathorops spixii ...
Alice Cristina Mondin +1 more
core +1 more source
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
Body-growth function adjusted for C. spixii.
, 2013 Von Bertalanffy body-growth function for Cathorops spixii individuals sampled in Caraguatatuba Bight from August 2003 through October 2004, using the ELEFAN I routine. L∞ (maximum length) = 27.3; K (growth-curve parameter) = 0.16; Rn (goodness of fit)
Maíra Pombo (280163) +5 more
core +1 more source