Results 51 to 60 of about 314 (146)

VARIACION ONTOGENETICA EN LA DIETA DE PATAGONOTOTHEN LONGIPES (STEINDACHNER 1876) (PERCIFORMES: NOTOTHENIIDAE) EN EL FIORDO DE CASTRO, CHILOE ONTOGENETIC VARIATION IN THE DIET OF PATAGONOTOTHEN LONGIPES (STEINDACHNER 1876) (PERCIFORMES: NOTOTHENIIDAE) IN THE FIORD OF CASTRO, CHILOE

Gayana, 2002
Patagonotothen longipes es un nototénido litoral que se distribuye geográficamente en Chile, desde Chiloé (42º29'S, 73º45'W) al sur. En el presente trabajo se analiza su ecología trófica, para lo cual se estudiaron 105 ejemplares capturados en ...
Carlos Murillo, Ciro Oyarzún
doaj  

Whole‐genome resequencing improves the utility of otoliths as a critical source of DNA for fish stock research and monitoring

Molecular Ecology Resources, Volume 24, Issue 8, November 2024.
Abstract Fish ear bones, known as otoliths, are often collected in fisheries to assist in management, and are a common sample type in museum and national archives. Beyond their utility for ageing, morphological and trace element analysis, otoliths are a repository of valuable genomic information.
Jilda Alicia Caccavo, Larissa S. Arantes, Enrique Celemín, Susan Mbedi, Sarah Sparmann, Camila J. Mazzoni   +5 more
wiley   +1 more source

Heat-Shock Protein Expression is Absent in the Antarctic Fish Trematomus Bernacchii (Family Nototheniidae) [PDF]

Journal of Experimental Biology, 2000
ABSTRACT The heat-shock response, the enhanced expression of one or more classes of molecular chaperones termed heat-shock proteins (hsps) in response to stress induced by high temperatures, is commonly viewed as a ‘universal’ characteristic of organisms.
G E, Hofmann, B A, Buckley, S, Airaksinen, J E, Keen, G N, Somero   +4 more
openaire   +2 more sources

Morphometric characteristics of Antarctic krill (Euphausia superba) and finfish bycatch in the krill fishery in the waters of South Orkney Islands during the 2022/23 fishing season

Frontiers in Marine Science
Determination of bar spacing of bycatch reduction devices (BRDs) should consider species composition and morphometric characteristics (particularly width) of target species krill and bycatch. This study conducted a scientific investigation of the finfish
Zhongqiu Wang, Zhongqiu Wang, Shuo Ma, Shuo Ma, Yongjin Wang, Yongjin Wang, Lumin Wang, Lumin Wang   +7 more
doaj   +1 more source

Unlocking Antarctic molecular time‐capsules – Recovering historical environmental DNA from museum‐preserved sponges

Molecular Ecology Resources, Volume 24, Issue 7, October 2024.
Abstract Marine sponges have recently emerged as efficient natural environmental DNA (eDNA) samplers. The ability of sponges to accumulate eDNA provides an exciting opportunity to reconstruct contemporary communities and ecosystems with high temporal and spatial precision. However, the use of historical eDNA, trapped within the vast number of specimens
Gert‐Jan Jeunen, Sadie Mills, Miles Lamare, Grant A. Duffy, Michael Knapp, Jo‐Ann L. Stanton, Stefano Mariani, Jackson Treece, Sara Ferreira, Benjamín Durán‐Vinet, Monika Zavodna, Neil J. Gemmell   +11 more
wiley   +1 more source

Comparison of traditional and molecular surveys of fish biodiversity in southern Te Wāhipounamu/Fiordland (Aotearoa/New Zealand)

Environmental DNA, Volume 6, Issue 1, January–February 2024.
At the remote UNESCO Word Heritage Site Te Wāhipounamu, we show that eDNA analysis is a highly sensitive tool with strong potential for biodiversity surveys, which is still limited by the unavailability of local reference data. We hope that by demonstrating the extend of divergence between eDNA and more traditional tools in a real‐life case study of a ...
Paul Czechowski, Michel de Lange, Michael Heldsinger, Anya Kardailsky, Will Rayment, Christopher Hepburn, Monique Ladds, Michael Knapp   +7 more
wiley   +1 more source

SEASONAL CHANGES OF THE MORPHO-BIOLOGICAL CHARACTERISTICS OF BLACK ROCKCOD NOTOTHENIA CORIICEPS (NOTOTHENIIDAE) IN THE ARGENTINE ISLANDS ARCHIPELAGO REGION

Український антарктичний журнал, 2018
Black rockcod Notothenia coriiceps (Nototheniidae) is one of the common fish species of the Argentine Islands Archipelago region, and it is very common in the Southern Ocean waters. So, objective of the original research was to study the seasonal changes
V. N. Trokhymets, A. V. Zinkovskyi
doaj   +1 more source

Skip spawning as a reproductive strategy in Antarctic fish species: the Antarctic silverfish (Pleuragramma antarctica) case study

Frontiers in Marine Science, 2015
The Antarctic silverfish Pleuragramma antarctica (Notothenioidei, Nototheniidae) is the most abundant pelagic fish inhabiting the frigid Antarctic coastal waters.
Eva Pisano, Stuart Hanchet, Marino Vacchi   +2 more
doaj   +1 more source

Characterization of complete mitochondrial genome and gene organization of sharp-spined notothenia, Trematomus pennellii (Perciformes: Nototheniidae)

Mitochondrial DNA. Part B. Resources, 2019
The complete mitochondrial genome of Trematomus pennellii was determined by MiSeq platform. The mitogenome of T. pennellii was 15,976 bp in length and encoded 37 genes (13 proteins, 22 tRNAs, 2 ribosomal RNAs) and a non-coding control region (D-Loop ...
Md. Jobaidul Alam, Jeong-Hoon Kim, Sapto Andriyono, Ji-Hyun Lee, Soo Rin Lee, Hyun Park, Hyun-Woo Kim   +6 more
doaj   +1 more source

Analysis of the helminth community of Notothenia coriiceps (Actinopterygii: Nototheniidae) collected in the water area of the Argentine Islands, West Antarctica

Український антарктичний журнал, 2022
Helminth community of the Antarctic black rockcod, Notothenia coriiceps, was examined using the fish samples collected in 2014—2015 (106 specimens) and 2020—2021 (78 specimens) in the water area of the Argentine Islands, West Antarctica. In total, 30,951
T. Kuzmina, Yu. Kuzmin, O. Salganskiy, O. Lisitsyna, E. Korol   +4 more
doaj   +1 more source