Results 101 to 110 of about 31,138 (282)
Analysis of BAC end sequences of tilapia (Oreochromis niloticus) using in silico approaches (W046) [PDF]
, 2011 Tilapias are the second most important fish group in aquaculture and a primary source of animal protein for millions of people in developing countries. Over the past years a great effort has been done to increase the genomic tools in tilapia by obtaining
Baroiller, Jean-François +5 more
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Journal of Fish Biology, EarlyView.Abstract The plainfin midshipman (Porichthys notatus Girard, 1854) is a toadfish with two distinct reproductive male tactics: ‘guarder males’ and ‘sneaker males’. These two tactics are anatomically, physiologically and behaviourally distinct from one another at sexual maturity, but it remained unclear whether these two male types remain fixed or ...
Micah J. Quindazzi +4 more
wiley +1 more source
Conservation and sustainable utilization of Nigerian ornamental fishes [PDF]
, 2005 The paper assessed qualitatively the threat status of nigerian freshwater fishes that are presently being exported and those that have potential in aquarium trade using such criteria as rarity, size at maturity, mode of reproduction, human population ...
Olaosebikan, B.D.
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Journal of Fish Biology, EarlyView.Abstract Alternative male morphs are found in many species of fishes. These morphs often differ in suites of social behaviours, such as aggression and territoriality, associated with alternative reproductive tactics. Such consistent morph‐typical behavioural profiles suggest common differences in underlying neuroendocrine mechanisms.
Adam R. Reddon +2 more
wiley +1 more source
A revision of the genus Astatoreochromis (Teleostei, Cichlidae), East-Africa [PDF]
, 2013 A taxonomic revision of the cichlid genus Astatoreochromis is presented. Eighteen meristic and 23 morphometric measurements were taken on 185 individuals, including type specimens.
Banyankimbona, Gaspard +2 more
core +3 more sources
No evidence for sex chromosomes in natural populations of the cichlid fish Astatotilapia burtoni [PDF]
, 2023 Nicolás Lichilín +2 more
openalex +1 more source
Journal of Fish Biology, EarlyView.Abstract A new species of pearl cichlid of the ‘Geophagus’ brasiliensis species group, endemic to the Piranga River, a major tributary of the upper Doce River basin in the state of Minas Gerais, southeastern Brazil, is herein described. The new species is delimited using an integrative approach, with molecular‐based species delimitation methods coupled
Cidimar E. de Assis +7 more
wiley +1 more source
Chickens First\ud \ud Speciation by “Hopeful Monsters” in Fraternal Supertwins\ud [PDF]
, 2008 The idea of “hopeful monster” was proposed by Goldschmidt who envisioned that speciation could occur instantaneously via major chromosomal rearrangement in a one-step process; but he could not unravel how similar individual in the opposite sex to appear ...
Zhang, Dr. Jianyi
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The cognitive role of concept variability
Mind &Language, EarlyView.I present and defend concept variability, the view that concepts can admit of indefinitely many variations and changes in their representational contents without thereby losing their identity. I argue that the variability of concepts is central to their role in enabling cognition, and thus that a concept's content variability is, despite philosophical ...
Alnica Visser
wiley +1 more source
BMC Evolutionary Biology, 2019 Background Cichlids are a prime model system in evolutionary research and several of the most prominent examples of adaptive radiations are found in the East African Lakes Tanganyika, Malawi and Victoria, all part of the East African cichlid radiation ...
Frederic Dieter Benedikt Schedel +2 more
doaj +1 more source