Results 71 to 80 of about 6,180 (203)

Branchial localization of acid (A‐type) and base (B‐type) excreting ionocytes in Amazonian stenohaline freshwater Potamotrygon ray

Journal of Fish Biology, EarlyView.
Abstract The branchial epithelium of Potamotrygon—a member of the only strictly freshwater elasmobranch family Potamotrygonidae—was observed via immunohistochemistry, and two distinct forms of ionocytes were identified. The acid (A‐type) and base (B‐type) secreting cells with respective basolateral–apical localizations of Na+/K+‐ATPase–Na+/H+ exchanger
M. W. Rossi, C. M. Wood, A. L. Val, J. M. Wilson   +3 more
wiley   +1 more source

Mercury bioaccumulation in fish of commercial importance from different trophic categories in an Amazon floodplain lake

Neotropical Ichthyology
Thirty-two species of commercially important fish from three trophic levels and nine trophic categories were sampled at a floodplain lake of the Solimões River (Lago Grande de Manacapuru).
Sandra Beltran-Pedreros, Jansen Zuanon, Rosseval Galdino Leite, José Reinaldo Pacheco Peleja, Alessandra Barros Mendonça, Bruce Rider Forsberg   +5 more
doaj   +1 more source

Levels of digestible protein to surubim (Pseudoplatystoma sp.) reared in net cages

Semina: Ciências Agrárias, 2014
The Pseudoplatystoma sp. is species of carnivorous fish that require special attention in the diet offered. This work had the objective to determine the digestible protein requirement of juvenile the Pseudoplatystoma sp. reared in net cages.
Claucia Aparecida Honorato , Thiago Tetsuo Ushizima , Carolina Isabel Isabel Flores Quintana , Cristiane Meldau de Campos, Vanessa Menegatti Marcondes , Camila Aparecida Nascimento , Fábio Mazzotti Santamaria   +6 more
doaj   +1 more source

Algal cover in mangroves affects distribution and predation rates by carnivorous fishes

Journal of Experimental Marine Biology and Ecology, 2012
Abstract Distribution and survival of fish are influenced by benthic habitat and complexity. While many studies have investigated the effects of algal cover on fishes in reef habitats, comparatively less is known regarding this relationship in mangrove habitats.
Jaxion-Harm, J, Speight, M
openaire   +2 more sources

Period of the day drives distinctions in the taxonomic and functional structures of reef fish assemblages

Journal of Fish Biology, EarlyView.
Abstract Circadian processes are key drivers of animal behaviour, influencing patterns of activity, resource partitioning and competition avoidance. Studies evaluating circadian changes on the structure of marine assemblages are lacking, especially for reef fish.
Marcos B. Lucena, Thiago C. Mendes, Cesar A. M. M. Cordeiro, Carlos E. L. Ferreira   +3 more
wiley   +1 more source

First attempt at using a synthetic diet in short‐lived killifish, a vertebrate model of ageing

Journal of Fish Biology, EarlyView.
Abstract Diet standardization of model organisms is crucial for experimental consistency and repeatability in laboratory research, yet laboratory fish often lack species‐specific, open‐formula standardized diets. This study aims to address this gap by testing the effect of macronutrient content on the performance of Nothobranchius furzeri, an ...
Jakub Žák, Milan Vrtílek
wiley   +1 more source

Fish communities and trophic metrics as measures of ecological degradation: a case study in the tributaries of the river Ganga basin, India

Revista de Biología Tropical, 2013
In India, freshwater aquatic resources are suffering from increasing human population, urbanization and shortage of all kind of natural resources like water.
Vineet Kumar Dubey, Uttam Kumar Sarkar, Ajay Pandey, Wazir Singh Lakra   +3 more
doaj  

Comparative Analysis of the Composition and Diversity of the Intestinal Microflora of Four Fishes with Different Feeding Habits

Progress in Fishery Sciences
Fish are generally classified as herbivorous, carnivorous, omnivorous, or filter-feeders according to feeding habits, including the feeding method and food content.
Hua RONG, Yuqing XIE, Tao ZHAO, Hong YIN, Liyun YUAN, Xianghe LIU, Zihan YANG, Yu SHI, Xiufeng LI, Lei ZHANG   +9 more
doaj   +1 more source

Resource partitioning among algal turf‐feeding fishes on a tropical artificial shoreline

Journal of Fish Biology, EarlyView.
Abstract Rapid coastal development has led to the proliferation of artificial structures along urban shorelines. Numerous studies have shown that patterns of fish diversity associated with these novel habitats are driven by physical habitat complexity; however, trophic‐mediated processes in shaping these patterns remain poorly understood.
Daisuke Taira, Hannah H. J. Yeo, Peter A. Todd   +2 more
wiley   +1 more source

Bayesian Meta-Analysis: Impacts of Eating Habits and Habitats on Omega-3 Long-Chain Polyunsaturated Fatty Acid Composition and Growth in Cultured Fish

Animals
Omega-3 long-chain polyunsaturated fatty acids (n-3 LC-PUFAs) such as eicosapentaenoic acid (20:5n-3, EPA) and docosahexaenoic acid (22:6n-3, DHA) offer protective benefits against various pathological conditions, including atherosclerosis, obesity ...
Yuanbing Wu, Ania Rashidpour, Isidoro Metón   +2 more
doaj   +1 more source