Results 31 to 40 of about 540 (163)

Muscle growth in Antarctic and Subantarctic notothenioid fishes

open access: yesScientia Marina, 2005
The suborder Notothenioidei comprises 122 species divided into 8 families, with members of 6 of the families living outside Antarctic waters. The Antarctic species underwent an extensive radiation from a small demersal ancestor to occupy different ...
Daniel Alfredo Fernández   +2 more
doaj   +1 more source

Trophic relationships of a subtidal fish assemblage in the Francisco Coloane Coastal Marine Protected Area, southern Chilean Patagonia

open access: yesPolar Research, 2018
A combination of stomach content and nitrogen (δ15N) and carbon (δ13C) stable-isotope analysis was used to assess the trophic interactions and feeding habits of three notothenioid coastal fish (Champsocephalus esox, Patagonotothen tessellata and ...
Mathias Hüne   +4 more
doaj   +1 more source

Dietary overlap in inshore notothenioid fish from the Danco Coast, western Antarctic Peninsula

open access: yesPolar Research, 2013
We carried out a dietary overlap analysis between notothenioid species by examining the stomach contents of more than 900 specimens collected in a fish assemblage at the Danco Coast, western Antarctic Peninsula, in the summer of 2000.
Ricardo Casaux, Esteban Barrera-Oro
doaj   +1 more source

Accelerated evolution at chaperone promoters among Antarctic notothenioid fishes

open access: yesBMC Evolutionary Biology, 2019
Background Antarctic fishes of the Notothenioidei suborder constitutively upregulate multiple inducible chaperones, a highly derived adaptation that preserves proteostasis in extreme cold, and represent a system for studying the evolution of gene ...
Samuel N. Bogan, Sean P. Place
doaj   +1 more source

Sequence and structure comparison of ATP synthase F0 subunits 6 and 8 in notothenioid fish.

open access: yesPLoS ONE, 2021
Mitochondrial changes such as tight coupling of the mitochondria have facilitated sustained oxygen and respiratory activity in haemoglobin-less icefish of the Channichthyidae family.
Gunjan Katyal   +4 more
doaj   +1 more source

Mitochondrial function in Antarctic nototheniids with ND6 translocation.

open access: yesPLoS ONE, 2012
Fish of the suborder Notothenioidei have successfully radiated into the Southern Ocean and today comprise the dominant fish sub-order in Antarctic waters in terms of biomass and species abundance. During evolution in the cold and stable Antarctic climate,
Felix C Mark   +8 more
doaj   +1 more source

Molecular Evolution of Metallothioneins of Antarctic Fish: A Physiological Adaptation to Peculiar Seawater Chemical Characteristics

open access: yesJournal of Marine Science and Engineering, 2022
Metallothioneins (MTs) are low-molecular weight sulfur-rich proteins, widely distributed in nature. They play a homeostatic role in the control and detoxification of metal ions.
Rigers Bakiu   +9 more
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

Molecular pedomorphism underlies craniofacial skeletal evolution in Antarctic notothenioid fishes

open access: yesBMC Evolutionary Biology, 2010
Background Pedomorphism is the retention of ancestrally juvenile traits by adults in a descendant taxon. Despite its importance for evolutionary change, there are few examples of a molecular basis for this phenomenon.
Yelick Pamela C   +7 more
doaj   +1 more source

Lighten up the dark: metazoan parasites as indicators for the ecology of Antarctic crocodile icefish (Channichthyidae) from the north-west Antarctic Peninsula [PDF]

open access: yesPeerJ, 2018
Due to its remote and isolated location, Antarctica is home to a unique diversity of species. The harsh conditions have shaped a primarily highly adapted endemic fauna. This includes the notothenioid family Channichthyidae.
Thomas Kuhn   +6 more
doaj   +2 more sources

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