Results 101 to 110 of about 15,069 (222)

Distribution and abundance of cichlids in the New Calabar River, Nigeria

open access: yesJournal of Fisheries, 2018
This study was conducted to study the distribution, abundance and diversity of the cichlids in the New Calabar River, Nigeria. A total of 1073 cichlids belonging to ten species and seven genera (Coptodon guineensis, C. zillii, C.
Olaniyi Alaba Olopade   +1 more
doaj   +3 more sources

Going Beyond Body Size in Fish Acoustic Communication

open access: yesEcology and Evolution, Volume 16, Issue 5, May 2026.
ABSTRACT In this response to Dr. Eric Parmentier's comments on our paper ‘“What Does the Anemonefish Say?”: Investigating Amphiprion percula's Acoustic Behaviour’, we correct and clarify Dr. Parmentier's affirmations. Firstly, we address the statistical ‘problems’ by clarifying our statistical approach, highlighting the advantages of GLMMs in ...
Lucia Yllan, Theresa Rueger
wiley   +1 more source

The status of the artisanal fishery of Lake Victoria, Kenya [PDF]

open access: yes, 1999
Annual catches of fish in Lake Victoria, Kenya from 1976-1998 are assessed, catches from 5-15 boats selected randomly from targeted landing sites were recorded. Twenty three of the 256 Kenyan landing sites were covered by the survey. Selection of landing
Othina, A.
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Habitat‐Driven Sexual Dimorphism in Triplophysa strauchii Between Oxbow Lake and Stream: A Geometric Morphometric Analysis

open access: yesEcology and Evolution, Volume 16, Issue 5, May 2026.
The combined effects of sexual selection and natural selection give rise to sexual dimorphism in operculum and eye morphology of T. strauchii across the two river basins. And our study reveal the fine‐scale responses of fish sexual dimorphism to diverse selective forces.
Yan Li   +3 more
wiley   +1 more source

Functional Morphology of the Oral Jaws and Dentition Across Diverse Diets and Ontogeny in Prickleback Fishes (Stichaeidae)

open access: yesJournal of Morphology, Volume 287, Issue 5, May 2026.
Prickleback fishes (Stichaeidae) feed upon diverse diets, spanning carnivory (orange), omnivory (blue), and herbivory (green). We used microCT scanning to explore the functional morphology of the oral jaws and dentition across species and ontogeny. Focal species vary by morphotype and have divergent scaling patterns across diets.
R. C. Hoover   +4 more
wiley   +1 more source

Reproductive ecology of a neotropical cichlid fish, Cichla monoculus (Osteichthyes: Cichlidae)

open access: yesBrazilian Journal of Biology, 2003
The reproductive ecology of the freshwater fish Cichla monoculus Spix, 1831 (Osteichthyes: Cichlidae) was investigated in the Campo Grande Reservoir, Northeast Brazil.
Chellappa S.   +4 more
doaj  

Reproductive ecology of a neotropical cichlid fish, Cichla monoculus (Osteichthyes: Cichlidae)

open access: yesBrazilian Journal of Biology
The reproductive ecology of the freshwater fish Cichla monoculus Spix, 1831 (Osteichthyes: Cichlidae) was investigated in the Campo Grande Reservoir, Northeast Brazil.
S. Chellappa   +4 more
doaj   +1 more source

Preliminary observations on the use of a frame trawl in hydroacoustic surveys [PDF]

open access: yes, 1999
Thirteen hauls were made during the hydroacoustic survey of the Ugandan waters of Lake Victoria from 7-19 February 1999. Ten of the hauls were made above the oxycline which was clearly visible as a strong echo on the echogram at between 25 and 35 m depth
Bassa, S., Tweddle, D.
core  

Colour Morphs as Alternative Solutions to the Trade‐Off Predicted by the Immuno‐Competence Handicap Hypothesis

open access: yesIntegrative Zoology, Volume 21, Issue 3, Page 639-651, May 2026.
In this study, we tested whether white and yellow morphs of the common wall lizard (Podarcis muralis) adopt alternative strategies shaped by the immuno‐competence handicap hypotheses (ICHH). We found that testosterone‐induced immune suppression was stronger in white males, while aggression decreased in both morphs.
Roberto Sacchi   +5 more
wiley   +1 more source

A bibliography of Lake Kariba 1987-1994 [PDF]

open access: yes, 1994
The bibliography contains some 116 citations, including unpublished reports and manuscripts, regarding Lake Kariba. Most of the reports are from the Zambia/Zimbabwe SADC Fisheries and Lake Kariba Fisheries Research Institute.
Muchabaiwa, L.D., Sanyanga, A.
core  

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