Results 61 to 70 of about 314 (146)

Comparative study on feeding strategy and activity patterns of two Antarctic fish: Trematomus newnesi Boulenger, 1902 and Gobionotothen gibberifrons (Lonnberg, 1905) (Pisces, Nototheniidae) under different light conditions

open access: yesAntarctic Record, 1994
The behavior of Trematomus newnesi BOULENGER, 1902 and Gobionotothen gibberifrons (LONNBERG, 1905) (Pisces, Nototheniidae), caught in Admiralty Bay, King George Island, during the Antarctic summer, is compared.
Edith Fanta   +3 more
doaj   +1 more source

The complete mitochondrial genome sequence and gene organization of Trematomus bernacchii (Perciformes: Nototheniidae) with phylogenetic consideration

open access: yesMitochondrial DNA Part B, 2016
In this study, the complete mitochondrial DNA sequence was obtained from Trematomus bernacchii. The full length of mitogenome was 16 018 bp, including 20 transfer RNA genes, a 16S ribosomal RNA genes and an incomplete 12S rRNA, 12 protein-coding genes and an incomplete ND6 protein-coding gene, and 2 non-coding regions: control region (D-loop) and ...
Song, Wei   +8 more
openaire   +2 more sources

Parasites of the Antarctic toothfish (Dissostichus mawsoni Norman, 1937) (Perciformes, Nototheniidae) in the Pacific sector of the Antarctic

open access: yesPolar Research, 2016
The Antarctic toothfish (Dissostichus mawsoni Norman, 1937) is one of the main target species of commercial fisheries in the Antarctic. It is an endemic and is found along the shelf of Antarctica, as well as on the slopes of seamounts, underwater ...
Ilya I. Gordeev, Sergey G. Sokolov
doaj   +1 more source

Helminths of antarctic rockcod Notothenia coriiceps (Perciformes, Nototheniidae) from the akademik Vernadsky station area (Argentine Islands, West Antarctica): new data on the parasite community

open access: yesZoodiversity, 2020
The aim of our study was to update the information on taxonomic diversity and structure of the parasite community of Antarctic rockcod, Notothenia coriiceps in the coastal water off the Argentine Islands (Wilhelm Archipelago, Graham Land, West Antarctica)
T. A. Kuzmina   +3 more
doaj   +1 more source

Behavioural strategies for feeding of six species of the Antarctic fish family Nototheniidae (Pisces, Notothenioidei) in a tank

open access: yesAntarctic Record, 1998
The feeding strategies of six Nototheniid fishes, Notothenia coriiceps, Notothenia neglecta, Trematomus bernacchii, Pagothenia borchgrevinki, Lepidonotothen nudifrons and Pleuragramma antarcticum, were studied in tanks, under controlled environmental ...
Edith Fanta, Ana Aparecida Meyer
doaj   +1 more source

Ontogenetic shift in buoyancy and habitat in the Antarctic toothfish, Dissostichus mawsoni (Perciformes: Nototheniidae)

open access: yesPolar Biology, 2002
Buoyancy measurements and depth of capture were taken on 70 individuals of Dissostichus mawsoni collected from the Southern Scotia Arc and McMurdo Sound, Antarctica, to examine the effect of age on buoyancy and habitat use. Standard lengths (SL) ranged from 10.4 to 138.0 cm.
Near, Thomas J.   +3 more
openaire   +2 more sources

Abnormal gonads in the Antarctic toothfish (Dissostichus mawsoni Norman, 1937 [Perciformes: Nototheniidae]): the first record and histological description

open access: yesPolar Research, 2018
This paper describes the morphology and histology of abnormal gonads in Antarctic toothfish (Dissostichus mawsoni) and the possibility of intersexuality and senescence of some individuals. Two old (approximately 25 years) and large (184–185 cm) specimens
Kristina A. Zhukova   +2 more
doaj   +1 more source

Patrones de abundancia, composición trófica y distribución espacial del ensamble de peces intermareales de la zona centro-sur de Chile Abundance, trophic composition and spatial distribution of the intertidal fish assemblage of South-central Chile

open access: yesRevista Chilena de Historia Natural, 2000
En las costas de la zona centro-sur de Chile se han realizado una serie de estudios relacionados con la biología de los peces pelágicos de importancia económica. Por el contrario, el conocimiento acerca de los peces litorales es escaso.
PABLO A QUIJADA, CRISTIAN W. CACERES M
doaj  

Metazoan Parasite Communities of Two Sympatric Shortnose Chimeras (Holocephali: Chimaeridae) from Deep Waters Associated with the Humboldt Current System: Ancient Fishes Harbor Ancient Parasites

open access: yesDiversity
A total of 61 specimens of deep-sea chimaeras (Hydrolagus melanophasma = 41; Chimaera sp. = 20) were obtained during September 2017 as by-catch of the local fishery of the Patagonian toothfish (Dissostichus eleginoides, Pisces: Nototheniidae) along the ...
Marcelo E. Oliva   +3 more
doaj   +1 more source

Ultrastructure of photo-sensory cells and pigment epithelium in the retina of the Antarctic fish Notothenia neglecta Nybelin (Nototheniidae)

open access: yesAntarctic Record, 2002
The Antarctic nototheniid Notothenia neglecta is the dominant fish in its habitat in Admiralty Bay, King George Island. They are predators, often ambush feeders, with accurate visual behaviour.
Lucelia Donatti, Edith Fanta
doaj   +1 more source

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