Results 41 to 50 of about 5,636 (182)

Overview of the discus fish (Symphysodon spp.): narrative review combined with potential for ornamental aquaculture

open access: yesBrazilian Journal of Biology
The discus fish (Symphysodon spp.) is an Amazonian cichlid species with great appeal in the ornamental fish market due to its characteristic shape, coloration, and behavior. This study aims to conduct a narrative review of the discus fish.
M. W. S. Ribeiro   +4 more
doaj   +1 more source

Morphological Evidence for Functional Crosstalk Between Multiple GnRH Systems in the Male Tilapia, Oreochromis niloticus

open access: yesFrontiers in Endocrinology, 2020
Gonadotropin-releasing hormone (GnRH) is a reproductive neuropeptide, which controls vertebrate reproduction. In most vertebrates, there are more than two GnRH orthologs in the brain.
Satoshi Ogawa, Ishwar Parhar
doaj   +1 more source

Bony fish genomes: Status and gaps

open access: yesJournal of Fish Biology, EarlyView.
Abstract Bony fish constitute an exceptionally species‐rich group of aquatic vertebrates, comprising more than 95% of all living fish. The adaptive processes on the diversity of environments they inhabit make them a highly diverse group from taxonomic, morphological and evolutionary standpoints.
Noelia Pérez‐Pereira   +3 more
wiley   +1 more source

High trophic niche overlap between sympatric peacock basses (Cichliformes: Cichlidae: Cichla): Concordant findings from three dietary analysis methods

open access: yesJournal of Fish Biology, EarlyView.
Abstract Dietary analysis has contributed to our understanding of animal niches, interspecific interactions, community structure and the flow of matter and energy in food webs. We employed three methods of dietary analysis to estimate trophic niche overlap between two peacock bass species, Cichla cataractae and Cichla ocellaris, across sympatric ...
Benton L. Fry   +2 more
wiley   +1 more source

East African cichlid lineages (Teleostei: Cichlidae) might be older than their ancient host lakes: new divergence estimates for the east African cichlid radiation

open access: yesBMC 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

Larval Development of Rusty Cichlid Fish (Iodotropheus sprengerae Oliver & Loiselle, 1972): Morphological Observations

open access: yesActa Natura et Scientia, 2022
This study aimed to describe the larval development stage of rusty cichlid, Iodotropheus sprengerae morphologically. The rusty cichlid is a mouth-brooding haplochromine cichlid from Lake Malawi.
İhsan Çelik   +2 more
doaj   +1 more source

Take my breath away: Defining the oxygen saturation threshold for fish cortisol stress response

open access: yesJournal of Fish Biology, EarlyView.
Abstract Human activities are affecting the number, size and severity of hypoxic zones in aquatic ecosystems. As oxygen is one of the most important abiotic factors affecting fish biology, exposure to low levels of dissolved oxygen may lead to a reduction in fitness.
Sébastien Alfonso   +4 more
wiley   +1 more source

Impacts of predator odours and conspecific disturbance cues on minnow thermal tolerance

open access: yesJournal of Fish Biology, EarlyView.
Abstract Warming waters can affect fish community dynamics, potentially exacerbating predator–prey asymmetries in behavioural and physiological metrics of thermal tolerance. Further, differing responses of prey fish species to concurrent predation risk and warming highlight the need to understand these impacts in various contexts, especially with at ...
V. Groves   +4 more
wiley   +1 more source

Adaptive radiation of cichlid fish [PDF]

open access: yesCurrent Biology, 2007
I thank Karen Carleton and Martin Genner for helpful comments on an earlier version of the manuscript and Ad Konings for providing the photomontage.
openaire   +2 more sources

Sex group composition, social interaction, and metabolism in the fish Nile tilapia

open access: yesBrazilian Journal of Biology
We tested whether the fish Nile tilapia (Oreochromis niloticus) in a monosex male group spends more energy and displays an agonistic profile, differently from males in male-female groups.
TB. Carvalho, E. Gonçalves-de-Freitas
doaj   +1 more source

Home - About - Disclaimer - Privacy