The males of some species go to extraordinary lengths to attract females – but some simply cheat. Take African cichlid fish. Many males build underwater "sandcastle" structures that the females use to judge the quality ...
Plants & Animals
Jan 30, 2017
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11
Okayama University researchers confirm the role of mate-guarding in males for blocking the female's visual familiarity with rival males to improve mating success in a medaka fish model.
Plants & Animals
Nov 21, 2016
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3
New methods at University of Oslo have made it possible to determine the Atlantic cod´s gender genetically. This could increase profits on cod in aquaculture.
Biotechnology
Sep 2, 2016
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Female fish in the Bahamas have developed ways of showing males that "No means no."
Evolution
Aug 19, 2015
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85
The manner and routes of dispersal vary with the species and the ecological conditions. Many fish form shoals to avoid predation. Shoaling with familiar conspecifics affords the fish an even greater advantage by increasing ...
Ecology
Jan 23, 2015
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58
Recreational fishermen prize large trophy fish. Commercial fishing gear targets big fish. After all, larger fish feed the egos of humans as well as their bellies.
Ecology
Oct 21, 2014
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0
A plentiful supply of yellow perch was once available in the U.S. Great Lakes region, but that changed in the 1990s. Populations of this Midwest fish-fry favorite dropped dramatically due to the invasion of the zebra mussel, ...
Plants & Animals
Jun 3, 2014
2
1
(Phys.org) —Paternity tests of surfperch fishes reveal that a single brood may have as many as eight different fathers. And the more mates a female surfperch has, the more offspring she will produce, according to a new ...
Ecology
May 15, 2014
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0
Fish exposed to the antidepressant Fluoxetine, an active ingredient in prescription drugs such as Prozac, exhibited a range of altered mating behaviours, repetitive behaviour and aggression towards female fish, according ...
Ecology
Apr 16, 2014
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0
(Phys.org) —When predators lurk nearby, male Bahamas mosquitofish (Gambusia hubbsi) change mating strategies, rejecting elaborate courting rituals for more frequent and sometimes forceful encounters with females.
Plants & Animals
Oct 11, 2013
1
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