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The role of notothenioid fish in the food web of the Ross Sea shelf waters: a review
The Ross Sea, a large, high-latitude (72–78°S) embayment of the Antarctic continental shelf, averages 500 m deep, with troughs to 1,200 m and the shelf break at 700 m, and the food web is non-linear, with complex prey-predator interactions.
Early life stages in the life cycle of Antarctic silverfish, Pleuragramma antarcticum in Terra Nova Bay, Ross Sea
Detailed description of embryos and newly hatched larvae in terms of pigmentation pattern and morphometric characteristics are provided, allowing a significant advance in understanding of the early life history of P. antarcticum in the Ross Sea, and extending the knowledge of the life cycle of this key Antarctic species.
Diversity, relative abundance, new locality records and population structure of Antarctic demersal fishes from the northern Scotia Arc islands and Bouvetøya
- Christopher D. Jones, M. Eric Anderson, H. William Detrich
- Environmental SciencePolar Biology
- 18 July 2008
Five of the six notothenioid species at Bouvetøya are not genetically differentiated from other localities in the Atlantic sector of the Southern Ocean, and the location of Bouvet â‚¬ya within the Antarctic Circumpolar Current and the long pelagic stages of the notOThenioids at Bouveøya may be at least partly responsible for this genetic homogeneity.
The Coastal Fish Fauna of Terra Nova Bay, Ross Sea, Antarctica
The coastal fish community of Terra Nova Bay was studied from samples collected off the Italian Antarctic station Terra NovaBay down to about 700 m depth from 1987 to 1995 and the biological characteristics such as feeding habits, reproduction, age and growth of the common species have been studied.
Influence of environmental conditions on spatial distribution and abundance of early life stages of Antarctic silverfish, Pleuragramma antarcticum (Nototheniidae), in the Ross Sea
- M. Mesa, B. Catalano, A. Russo, S. Greco, M. Vacchi, M. Azzali
- Environmental ScienceAntarctic Science
- 12 February 2010
Abstract The Antarctic silverfish Pleuragramma antarcticum Boulenger is the dominant fish species in the high Antarctic zone, playing a key role in the Ross Sea midwater shelf ecosystem. Unlike other…
Molecular pedomorphism underlies craniofacial skeletal evolution in Antarctic notothenioid fishes
The hypothesis that early shifts in the relative timing of craniofacial skeletal gene expression may have had a significant impact on the adaptive radiation of Antarctic notothenioids into pelagic habitats is supported.
Ichthyoplankton abundance and distribution in the Ross Sea during 1987–1996
During Italian expeditions, ichthyoplankton was collected in the Ross Sea and Terra Nova Bay, by BIONESS and Hamburg Plankton Net and a total of 394,453 fish larvae representing 46 species, 27 genera and 9 families were collected.
Age and growth of high Antarctic notothenioid fish
Although low temperature is a constraint on growth, other ecological factors linked to life style, such as food availability and physiological adaptations, may explain differences in growth performance between fish from the seasonal pack-ice zone and the high Antarctic zone.
Rapid Miocene–Pliocene dispersal and evolution of Mediterranean rajid fauna as inferred by mitochondrial gene variation
- E. Valsecchi, P. Pasolini, F. Tinti
- Environmental ScienceJournal of evolutionary biology
- 18 November 2004
The evolutionary history and dispersal of North‐east Atlantic and Mediterranean rajid fauna were investigated throughout the sequence analysis of the control region and 16S rDNA mitochondrial genes, and phylogenetic relationships indicated Mediterranean endemic skates derived from sister species with wider distribution during Late Pliocene–Pleistocene.
Recent findings of some uncommon fishes from the central Tyrrhenian Sea
The extension of the geo- graphic area of a termophilic species, P. incisus, and the occurrence, in Anzio waters, of Sphyraena viridensis, currently recognized as endemic to the Mediterranean is discussed.