Results 71 to 80 of about 2,343 (186)

Diversification Rate is Associated with Rate of Molecular Evolution in Ray-Finned Fish (Actinopterygii)

open access: yesJournal of Molecular Evolution, 2022
AbstractUnderstanding the factors that drive diversification of taxa across the tree of life is a key focus of macroevolutionary research. While the effects of life history, ecology, climate and geography on diversity have been studied for many taxa, the relationship between molecular evolution and diversification has received less attention.
Andrew M. Ritchie   +2 more
openaire   +2 more sources

Backward swimming in elongated‐bodied abyssal demersal fishes: Synaphobranchidae, Macrouridae, and Ophidiidae

open access: yesJournal of Fish Biology, EarlyView.
Abstract The deep‐sea demersal fish fauna is characterized by a prevalence of elongated‐body forms with long tapering tails. Using baited camera landers at depths of 4500–6300 m in the Pacific Ocean, we observed multiple instances of backward swimming using reverse undulation of the slender body in four species: the cutthroat eel Ilyophis robinsae ...
Imants G. Priede, Alan J. Jamieson
wiley   +1 more source

Phylogenetic Classification of Living and Fossil Ray-Finned Fishes (Actinopterygii)

open access: yesBulletin of the Peabody Museum of Natural History
Classification of the tremendous diversity of ray-finned fishes (Actinopterygii) began with the designation of taxonomic groups based on morphological similarity. Starting in the late 1960s morphological phylogenetics became the basis for the classification of Actinopterygii but failed to resolve many relationships, particularly among lineages within ...
Thomas J Near, Christine E Thacker
openaire   +2 more sources

The Fossil Record of Ray-Finned Fishes (Actinopterygii) in Greece [PDF]

open access: yes, 2021
AbstractThe nowadays hyper-diverse clade of Actinopterygii (ray-finned bony fishes) is characterized by a long evolutionary history and an extremely rich global fossil record. This work builds upon 170 years of research on the fossil record of this clade in Greece. The taxonomy and spatiotemporal distribution of the ray-finned fish record of Greece are
openaire   +1 more source

A global ecological signal of extinction risk in marine ray-finned fishes (class Actinopterygii)

open access: yesCambridge Prisms: Extinction, 2023
Many marine fish species are experiencing population declines, but their extinction risk profiles are largely understudied in comparison to their terrestrial vertebrate counterparts.
Trevor M. Bak   +5 more
doaj   +1 more source

Morphological and metabarcoding dietary analysis of the cunner wrasse (Tautogolabrus adspersus) revealed significant regional variation, with large overlap between its common prey species and biofouling animals living on salmonid sea cages

open access: yesJournal of Fish Biology, EarlyView.
Abstract The stomach‐less cunner wrasse (Tautogolabrus adspersus) has been experimentally used as a biological control agent for salmon lice that infest Atlantic salmon (Salmo salar) and to remove biofouling inside sea cages. The cunner demonstrates a strong population structure, suggesting that its diet, and therefore its usefulness for biological ...
Christopher J. D. Bender   +3 more
wiley   +1 more source

DNA barcoding of the fishes of the genus Alburnoides (Actinopterygii, Cyprinidae) from Caucasus

open access: yesMitochondrial DNA Part A, 2016
Spirlins of the genus Alburnoides are widespread fishes, which taxonomy has been rapidly developing in recent years. Mitochondrial cytochrome c oxidase subunit I (COI) was used as DNA barcode marker to create a reference dataset of Caucasian Alburnoides and to test its barcoding efficiency.
Andrey N. Pashkov   +6 more
openaire   +3 more sources

Marine water environmental DNA metabarcoding provides a comprehensive fish diversity assessment and reveals spatial patterns in a large oceanic area

open access: yesEcology and Evolution, 2020
Current methods for monitoring marine fish (including bony fishes and elasmobranchs) diversity mostly rely on trawling surveys, which are invasive, costly, and time‐consuming.
Natalia Fraija‐Fernández   +7 more
doaj   +1 more source

Environmental DNA highlights fish biodiversity in mesophotic ecosystems

open access: yesEnvironmental DNA, 2023
Mesophotic marine ecosystems are characterized by lower light penetration supporting specialized fish fauna. Due to their depths (−30–−150 m), accessibility is challenging, and the structure of mesophotic fish assemblages is generally less known than ...
Marion Muff   +18 more
doaj   +1 more source

Feeding control and water quality monitoring in aquaculture systems: Opportunities and challenges [PDF]

open access: yesarXiv, 2023
Aquaculture systems can benefit from the recent development of advanced control strategies to reduce operating costs and fish loss and increase growth production efficiency, resulting in fish welfare and health. Monitoring the water quality and controlling feeding are fundamental elements of balancing fish productivity and shaping the fish growth ...
arxiv  

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