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.
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 early life history of juvenile scotia sea icefish, Chaenocephalus aceratus, from Elephant and the South Shetland Islands
The otolith microstructure of juvenile Scotia Sea icefish (Chaenocephalus aceratus) was analyzed from samples collected around Elephant and South Shetland Islands, with the aim to validate previous…
Feeding habits of the Madeira rockfish Scorpaena maderensis from central Mediterranean Sea
The diet of Scorpaena maderensis was characterized by a variety of rare or unimportant prey, which was consumed by few individuals only, although sometimes in large amount, and can be considered a generalized and opportunistic feeder.
Microsatellite analysis reveals genetic differentiation between year-classes in the icefish Chaenocephalus aceratus at South Shetlands and Elephant Island
- C. Papetti, E. Susana, M. La Mesa, K. Kock, T. Patarnello, L. Zane
- Environmental SciencePolar Biology
- 18 July 2007
The results support the evidence from previous studies on differences in infestation patterns of parasites that a single panmictic population of C. aceratus exists, and indicate the presence of a significant genetic differentiation between individual year-classes pointing out the existence of dynamic processes acting at the population genetic level.
Some reproductive traits of the Tristan klipfish, Bovichtus diacanthus (Carmichael 1819) (Notothenioidei: Bovichtidae) from Tristan da Cunha (South Atlantic)
The reproductive biology of the Tristan klipfish, Bovichtus diacanthus, was investigated by macroscopic and histological analyses of the gonads, and the phyletically basal position of bovichtids in the suborder was compared with those previously described in other Antarctic and non-Antarctic notothenioids.
Taxonomic studies of the Antarctic icefish genus Cryodraco Dollo, 1900 (Notothenioidei: Channichthyidae)
Multidimensional scaling, a nonparametric multivariate technique, clearly separates the two species of Cryodraco on the basis of pelvic fin length, head length, number of second dorsal fin rays and origin of the lower lateral line relative to the anal fin rays.
Life style and genetic variation in teleosts: the case of pelagic (Aphia minuta) and benthic (Gobius niger) gobies (Perciformes: Gobiidae)
A weak genetic structure in A. minuta populations seems to be therefore due to a more recent re-colonization of the Mediterranean basin after a severe population decline, rather than to the high vagility of this pelagic goby.
Molecular phylogeny of the three paedomorphic Mediterranean gobies (Perciformes: Gobiidae).
- M. Giovannotti, P. N. Cerioni, M. La Mesa, V. Caputo
- BiologyJournal of Experimental Zoology Part B: Molecular…
- 15 December 2007
The phylogenetic analysis strongly supported the polyphyletic origin of the three paedomorphic gobies, indicating that the heterochronic change leading to the retention of larval features seems to have occurred independently in the ancestors of these species.
Life history strategies of the Scotia Sea icefish, Chaenocephalus aceratus, along the Southern Scotia Ridge
- E. Riginella, C. Mazzoldi, J. Ashford, Christopher D. Jones, C. Morgan, M. La Mesa
- Environmental SciencePolar Biology
- 1 March 2016
Lower reproductive capacity around the SOI, and strong eastward flow in the large-scale circulation, suggests that the SSI may be more important in influencing distributions and abundance of icefish along the Southern Scotia Ridge.