Results 51 to 60 of about 3,168 (183)
Efficacy of Honey on Sex Reversal of Guppy (Poecilia reticulata Peters)
Jurnal Akuakultur Indonesia, 2007 This study was performed to determine effectiveness of honey on sex reversal of guppy. Guppy broodstock was dipped on 1 L of water containing 0, 20, 40 or 60 mL of honey, for 10 hours.
D.T. Soelistyowati, E. Martati, H. Arfah
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Veterinární Medicína, 2021 The use of in vitro (fish cell lines) is a cost-effective, very rapid, and informative tool for toxicological assessments. Using the neutral red (NR) assay, we compared the in vitro acute toxicity (20hEC50) of twenty-six chemical substances on a rainbow ...
J Kolarova, J Velisek, Z Svobodova
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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
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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
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Journal of Fish Biology, EarlyView.Abstract Intensive multigenerational size‐selective mortality has been found to alter collective properties like shoaling via evolutionary adaptations of individual‐level behavioural traits. For example, experimental populations of zebrafish (Danio rerio) experiencing intensive large size‐selective mortality over multiple generations developed less ...
Tamal Roy +2 more
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Journal of Fish Diseases, EarlyView.ABSTRACT Histopathological studies of infections with the nematode Procamallanus (Procamallanus) pseudolaeviconchus Moravec and Van As, 2015, an intestinal parasite of Clarias gariepinus (Burchell, 1822), are scarce. The current study describes histopathological changes in the stomach of C. gariepinus infected with P.
Thabo Kenneth Matea +1 more
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Scientia Agropecuaria, 2011 This article provides a standard computerized digitized based on the number of pixels. They found eight characteristic blue color tones in both the body and dorsal fin to be used in the potential for mass selection breeding color pattern of the ...
Carlos Scotto Espinoza
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The Iraqi Journal of Veterinary Medicine, 2005 Tetrahymena pyriformis has been firstly isolated from brood Goldfish (Carassius auratus) Common, Fantail, Ryukin, Veiltail and Moor, Black molly (Poecilia sphenops), Gourami (Trichogaster trichopterus), red Swordtail (Xiphophorus helleri), Guppy ...
Omar Bassim Ahmed Al- Tayyar
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Biological Reviews, Volume 101, Issue 2, Page 911-925, April 2026.ABSTRACT Three categories of explanations exist for why we age: mechanistic theories, which omit reference to evolutionary forces; weakening force of selection theories, which posit that barriers exist that prevent evolutionary forces from optimising fitness in ageing; and optimisation theories, which posit that evolutionary forces actually select for ...
Michael S. Ringel
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Tagging Very Small Fish: Two Effective and Low Impact Methods
Journal of Experimental Zoology Part A: Ecological and Integrative Physiology, Volume 345, Issue 3, Page 213-224, April 2026.ABSTRACT Identifying individuals over time and across contexts is essential in many scientific fields. There are a variety of well‐established methods for uniquely marking individuals (e.g., visible implant elastomer, barcodes, paint). However, for some species, life history stages, and/or experiments, existing methods are not sufficient.
Deijah D. Bradley +4 more
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