Now showing items 1-10 of 2893
An overview of the ongoing insights in selenium research and its role in fish nutrition and fish health
In the present review, the ongoing researches about selenium research in fish nutrition have been comprehensively discussed. Selenium research is getting popularity in fish nutrition as it is required for the normal growth ...
When does this fish spawn? Fishermen's local knowledge of migration and reproduction of Brazilian coastal fishes
(SpringerNew YorkEUA, 2006)
Low concentrations of glyphosate-based herbicide cause complete loss of sperm motility of yellowtail tetra fish Astyanax lacustris
Environmental relevant concentrations of glyphosate-based herbicide as 50 µg l−1, 300 µg l−1 and 1800 µg l−1 can affect sperm quality of yellowtail tetra fish Astyanax lacustris. Viability of sperm cells was impaired at ...
Chemical communication of handling stress in fish
(Pergamon-Elsevier B.V. Ltd, 2011-06-01)
We investigated whether juveniles of the nocturnal fish jundia (Rhamdia quelen) and the diurnal fish Nile tilapia (Oreochromis niloticus) are able to chemically communicate stress to conspecifics. Groups of 8 fish were ...
Fish gut content from biological collections as a tool for long-term environmental impact studies
Most of the world’s fish fauna is suffering from different types of human impacts and new conservation tools are required. The fish diet analysis is a tool that has been used to evaluate degradation processes of aquatic ...
Spatial and temporal patterns of diversity and distribution of the Upper Jurua River fish community (Brazilian Amazon)
(Kluwer Academic PublDordrechtHolanda, 2000)
Water jet: a simple method for classical conditioning in fish
Classical conditioning in animals is a learning procedure involving a biologically relevant stimulus paired with a previously neutral stimulus. In fish, light and sound are frequently used as previously neutral stimuli for ...
Reproductive biology of two macrourid fish, Nezumia aequalis and Coelorinchus mediterraneus, inhabiting the NW Mediterranean continental margin (400-2000m)
Nezumia aequalis and Coelorinchus mediterraneus are abundant species on the upper and lower continental slopes, respectively, in the Mediterranean Sea. A study on the reproductive strategy of the two species was conducted ...