Results 111 to 120 of about 15,069 (222)

Hybrid Horizons: Screening Hybridisation Through Nuclear Environmental DNA

open access: yesMolecular Ecology Resources, Volume 26, Issue 4, May 2026.
ABSTRACT Effective monitoring of hybrid zones is essential for understanding evolutionary dynamics and mitigating species loss caused by human‐mediated hybridisation. Conventional methods rely on sampling numerous individuals, which is costly, time‐consuming and often impractical for rare or elusive species.
Daniel Zumel   +8 more
wiley   +1 more source

A preliminary assessment of water quality in fish cages on Lake Kariba, Zimbabwe [PDF]

open access: yes, 1994
The water quality in fish cages on Lake Kariba was studied. The Kruskal-Wallis test was used to determine whether the water quality parameters differed significantly among the cage-types (cage-type effect). Secchi disc readings ranged from 2 to 4 metres,
Mhlanga, W.
core  

Recombination suppression in plant adaptation and speciation

open access: yesNew Phytologist, Volume 250, Issue 4, Page 2061-2077, May 2026.
Summary Recombination suppression is increasingly recognized as an important facilitator of genomic divergence and speciation, especially under ongoing gene flow. In plants, however, the broader evolutionary consequences and the mechanisms by which recombination suppression arises and spreads are still incompletely understood, reflecting the inherent ...
Xu Zhang   +4 more
wiley   +1 more source

Early social complexity influences social behaviour but not social trajectories in a cooperatively breeding cichlid fish

open access: yesRoyal Society Open Science
Social competence—defined as the ability to optimize social behaviour according to available social information—can be influenced by the social environment experienced in early life.
Océane La Loggia   +2 more
doaj   +1 more source

An appraisal of the current status of the fisheries of Eleiyele Reservoir by its fisheries cooperatives [PDF]

open access: yes, 2001
In a study undertaken to evaluate the status of the fisheries of Eleiyele Reservoir (Nigeria) between 1995 and 1997, thermal stratification was observed to breakdown between December and March.
Aladeojebi, E.A.   +2 more
core  

Genetic status of selected fish taxa in relation to conservation of genetic and species diversity in the Victoria and Kyoga Lake basins [PDF]

open access: yes, 2000
Cichlids are known for their explosive radiation especially in the African Great Lakes marked with a high level of lake endemism. These fishes have been characterized mainly along trophic and habitat differences, by variation in morphological structures ...
Mwanja, W.
core  

Comparative study on the catch efficiency and size selection of entangling nets in Lake Kainji, Nigeria [PDF]

open access: yes, 2005
The relative catch performance and selectively of gillnets and trammel nets were investigated in 12 sampling stations in Lake Kainji, Nigeria. 3 types of nets with dimensions 50mx3m were constructed using 76mm and 178mm meshsizes for two gillnets, 76mm ...
Adebayo, O.T.   +2 more
core  

Africa: the FBA connection [PDF]

open access: yes, 1986
Since its inception in the 1930's the Freshwater Biological Association at Windermere, England has been involved in research on African lakes and rivers.
Fryer, G., Talling, J.F.
core  

Conservation and sustainable utilization of Nigerian ornamental fishes [PDF]

open access: yes, 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.
core  

Report on the 1980/81 angling census in the Sanyati Gorge, Lake Kariba [PDF]

open access: yes, 1981
The angling census carried out in the Sanyati Gorge, August 1980 - March 1981, is reported. The results are compared to those obtained in the 1973 census.
Langerman, J.D.
core  

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