Results 41 to 50 of about 314 (146)

Mobilization of retrotransposons as a cause of chromosomal diversification and rapid speciation: the case for the Antarctic teleost genus Trematomus

open access: yesBMC Genomics, 2018
Background The importance of transposable elements (TEs) in the genomic remodeling and chromosomal rearrangements that accompany lineage diversification in vertebrates remains the subject of debate.
J. Auvinet   +8 more
doaj   +1 more source

Somatic energy content and histological analysis of the gonads in Antarctic fish from the Scotia Arc

open access: yesScientia Marina, 2005
Histological characteristics of the gonads and the energy contents of axial muscle, liver and gonads of Antarctic notothenioid fish collected during the LAMPOS (Latin American Polarstern Study) survey in April 2002 were analysed.
Fabián Alberto Vanella   +3 more
doaj   +1 more source

Research Bias in Long‐Term Monitoring of Antarctic Nearshore Marine and Terrestrial Biota

open access: yesGlobal Change Biology, Volume 31, Issue 8, August 2025.
Antarctic wildlife is under pressure from environmental changes and human activity, but how well is Antarctica's coastal biota being monitored? While over half of the long‐term monitoring studies spanned more than 10 years and/or included environmental data, they were limited in number, mostly focused on penguins and marine mammals, were unevenly ...
Shae L. Jones   +4 more
wiley   +1 more source

Notothenia trigramma (Pisces: Nototheniidae) in southern Argentina [PDF]

open access: yes, 1996
Fil: García, Mirta Lidia. División Zoología Vertebrados. Facultad de Ciencias Naturales y Museo.
García, Mirta Lidia   +1 more
openaire  

Growth of an Inshore Antarctic fish, Trematomus newnesi (Nototheniidae), off Adelie Land

open access: yesPolar Science, 2016
Dusky rockcod, Trematomus newnesi, is a widely distributed neritic circumpolar Antarctic fish species. We conducted a study on age and growth of Trematomus newnesi in coastal waters of Adélie Land in East Antarctica. A total of 289 specimens were collected in 2003, 2005, 2006 and 2009. They consisted of 122 females, 132 males and 35 immature specimens.
Mahe, Kelig   +3 more
openaire   +3 more sources

Climate Change Impacts on Antarctic Fish Diversity: A Circumpolar Perspective From eDNA Metabarcoding Assessment

open access: yesDiversity and Distributions, Volume 31, Issue 7, July 2025.
ABSTRACT Aim Recent climate‐driven changes in the Antarctic marine environment, marked by regional differences between West and East Antarctica, may alter ecosystem dynamics. As key components of the food web, fish might reflect these changes. This study examines fish biodiversity patterns across four typical Antarctic seas by integrating eDNA analysis
Hai Li   +9 more
wiley   +1 more source

Antecedentes alimentarios de Eleginops maclovinus (Valenciennes, 1830) (Teleostomi: Nototheniidae) en Mehuin, Chile

open access: yesActa Zoológica Lilloana, 2020
Se estudiaron trescientos sesenta y tres ejemplares de Eleginops maclovinus (Valenciennes, 1830) para conocer sus hábitos alimentarios en la desembocadura del río Lingue (Chile, 39°25?S; 73°10?W).
Germán Pequeño R.
doaj  

Growth Patterns and Body Condition of Notothenioid Fish (Genus Trematomus) From the Antarctic Peninsula and Weddell Sea

open access: yesJournal of Applied Ichthyology, Volume 2025, Issue 1, 2025.
Growth patterns and body condition of 10 species of Trematomus (family Nototheniidae) collected off the Antarctic Peninsula and in the Weddell Sea during seven cruises carried out between 2002 and 2022 were estimated by length–weight relationships (LWRs) and relative condition factors (Krel).
Mario La Mesa   +2 more
wiley   +1 more source

Taxonomie numérique des Nototheniidae (Poissons Perciformes)

open access: yes, 1967
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source

A spatial matrix factorization method to characterize ecological assemblages as a mixture of unobserved sources: An application to fish eDNA surveys

open access: yesMethods in Ecology and Evolution, Volume 15, Issue 12, Page 2301-2315, December 2024.
Abstract Understanding how ecological assemblages vary in space and time is essential for advancing our knowledge of biodiversity dynamics and ecosystem functioning. Metabarcoding of environmental DNA (eDNA) is an efficient method for documenting biodiversity changes in both marine and terrestrial ecosystems. However, current methods fail to detect and
Letizia Lamperti   +7 more
wiley   +1 more source

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