Results 61 to 70 of about 17,994 (219)

Dietary utilisation of protein and energy from fresh and ensiled coffee pulp by the Nile tilapia, Oreochromis niloticus

open access: yesBrazilian Archives of Biology and Technology, 2003
Dietary protein and energy utilisation of diets containing fresh and ensiled coffee pulp were studied on 3.2 ± 0.2 g Nile tilapia for 28 days. Diets formulation and feeding were designed on the basis of daily dietary protein and energy allowance.
Yann Moreau   +3 more
doaj   +1 more source

Global Patterns and Gaps in Research on Salinity Tolerance of Inland Fishes

open access: yesFish and Fisheries, EarlyView.
ABSTRACT Freshwater salinization is an emerging threat impacting approximately one‐third of the world's freshwater bodies. However, the salinity tolerance of many inland fishes remains understudied, despite being a crucial factor in determining species distributions and fitness.
Carlos Cano‐Barbacil   +4 more
wiley   +1 more source

Rapid generation of ecologically relevant behavioral novelty in experimental cichlid hybrids

open access: yesEcology and Evolution, 2020
The East African cichlid radiations are characterized by repeated and rapid diversification into many distinct species with different ecological specializations and by a history of hybridization events between nonsister species.
Anna F. Feller   +5 more
doaj   +1 more source

Serial monogamy benefits both sexes in the biparental convict cichlid [PDF]

open access: yesPeerJ, 2019
Monogamy can be either long-term or serial, with new pairs formed with each breeding bout. Costs and benefits are associated with each strategy. Because biparental convict cichlids (Amatitlania nigrofasciata) typically switch mates, exhibiting serial ...
Jennifer L. Snekser, Murray Itzkowitz
doaj   +2 more sources

Sex‐biased dispersal in the Arabian babbler (Argya squamiceps)

open access: yesIbis, EarlyView.
Sex‐biased dispersal plays a central role in shaping social structure and reproductive strategies in many bird species. In the Arabian Babbler Argya squamiceps, a cooperatively breeding species with pronounced male philopatry, dispersal occurs individually or in kin‐based same‐sex coalitions.
Roni Ostreiher   +2 more
wiley   +1 more source

Individual identification of bony fishes using unique body markings: Implications and applications

open access: yesJournal of Fish Biology, EarlyView.
Abstract The natural variation in animal body markings, such as spots, stripes and blotches, offers a powerful tool for researchers, conservationists, citizen scientists and resource managers to distinguish specific individuals within species. By building libraries of photo‐identified individuals, we can track and differentiate individuals over time ...
Katie Dunkley   +6 more
wiley   +1 more source

Depth segregation and diet disparity revealed by stable isotope analyses in sympatric herbivorous cichlids in Lake Tanganyika

open access: yesZoological Letters, 2015
Lake Tanganyika in the African Great Rift Valley is known as a site of adaptive radiation in cichlid fishes. Diverse herbivorous fishes coexist on a rocky littoral of the lake.
H. Hata   +4 more
semanticscholar   +1 more source

Structural and developmental insights into the muscles involved in lionfish (Pterois spp.) vocalisations

open access: yesJournal of Fish Biology, EarlyView.
Abstract Vocal signalling is an important mode of communication in fishes. The two species of lionfish in the Pterois complex, the Indo‐Pacific lionfish (Pterois volitans) and the red lionfish (Pterois miles), are both known to produce different types of sounds with sonic muscles attached to the swimbladder.
Roxanne B. Holmes   +5 more
wiley   +1 more source

Linking rivers, mixing faunas: How artificial connectivity between the Middle and Upper Paraná River basins shapes fish diversity in a tributary of the Itaipu Reservoir, Brazil

open access: yesJournal of Fish Biology, EarlyView.
Abstract This work aimed to investigate the distribution and occurrence of fish species along the São Francisco Falso Braço Norte (SFFBN) River basin, a tributary of the Middle Paraná River basin now artificially connected to the Upper Paraná ecoregion, to evaluate how such connectivity may affect the biogeographic distribution and regional composition
Lucas E. P. Kampfert   +5 more
wiley   +1 more source

Growth and age differences between two male alternative reproductive tactics in the plainfin midshipman

open access: yesJournal 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

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