The diet of the Antarctic fish Trematomus newnesi Boulenger, 1902 (Nototheniidae) from Terra Nova Bay, Ross Sea

1995 ◽  
Vol 7 (1) ◽  
pp. 37-38 ◽  
Author(s):  
M. Vacchi ◽  
M. La Mesa
Keyword(s):  
Ross Sea ◽  
Antarctic Fish ◽  
South Shetland Islands ◽  
The South ◽  
Shetland Islands ◽  
Orkney Islands ◽  
Terra Nova Bay ◽  
Coastal Species ◽  
South Orkney Islands ◽  
Terra Nova

A coastal ichthyological survey was carried out in Terra Nova Bay, Ross Sea during the Italian Antarctic Expedition 1987/1988. Vacchi et al. (1992) described the composition of the coastal fish community. Stomach content analysis was conducted on Trematomus bernacchii and T. pennellii to evaluate the trophic overlap (Vacchi et al. 1994). During the survey, several specimens of T. newnesi were caught at 92 m depth. This fish is a coastal species widespread in the high-Antarctic Zone and also known from the South Shetland Islands and the South Orkney Islands (DeWitt et al. 1990). Although T. newnesi was found down to 400 m depth (Tiedtke & Kock 1989), it seems more abundant in very shallow inshore waters (Naito & Iwami 1982, Williams 1988). Andriashev (1970) and Williams(1988) stated T. newnesi was a cryopelagic species associated with the underside of the sea-ice. At Signy Island, T. newnesi was described as semipelagic species eating amphipods (Richardson 1975). Eastman & DeVries (1982) consider it to be both a cryopelagic and benthic species in McMurdo Sound. Targett (1981) found that T. newnesi feeds on krill and plankton at the South Orkney Islands. Planktivory has also been indicated at the South Shetland Islands (Casaux et al. 1990).

scholarly journals Identification of marine Important Bird and Biodiversity Areas for penguins around the South Shetland Islands and South Orkney Islands

2018 ◽  
Vol 8 (21) ◽  
pp. 10520-10529 ◽  
Author(s):  
Maria P. Dias ◽  
Ana Paula Bertoldi Carneiro ◽  
Victoria Warwick-Evans ◽  
Colin Harris ◽  
Katharina Lorenz ◽  
...  
Keyword(s):  
South Shetland Islands ◽  
The South ◽  
Shetland Islands ◽  
Orkney Islands ◽  
South Orkney Islands

The cryptostigmatid mite Halozetes belgicae (Michael) in the maritime Antarctic

1991 ◽  
Vol 3 (1) ◽  
pp. 53-59 ◽  
Author(s):  
L.B. Minto ◽  
G.J. Shepherd ◽  
M.B. Usher
Keyword(s):  
South Shetland Islands ◽  
Maritime Antarctic ◽  
The South ◽  
Macquarie Island ◽  
Shetland Islands ◽  
Orkney Islands ◽  
South Orkney Islands ◽  
South Sandwich Islands ◽  
The Antarctic ◽  
Morphometrical Study

Halozetes belgicae is distributed widely in the Subantarctic and maritime Antarctic, with subspecies described from Macquarie Island and the South Sandwich Islands. A morphometrical study, based largely on the development of the setae, indicates that the nominate subspecies is confined to the Antarctic Peninsula and its offshore islands (including the South Shetland Islands), whilst specimens from the South Orkney Islands are probably consubspecific with individuals on the South Sandwich Islands. In comparison with other studies of the Acari, the results strengthen the case for the recognition of a South Orkadian biogeographical zone.

Acanthocephalan infection of inshore fishes at the South Orkney Islands

1996 ◽  
Vol 8 (3) ◽  
pp. 273-276 ◽  
Author(s):  
Krzysztof Zdzitowiecki ◽  
Martin G. White
Keyword(s):  
Body Cavity ◽  
The Body ◽  
South Shetland Islands ◽  
The South ◽  
Shetland Islands ◽  
Orkney Islands ◽  
Notothenia Coriiceps ◽  
South Orkney Islands ◽  
Chaenocephalus Aceratus ◽  
First Time

An examination of notothenioid fish of three species, including 23 immature Notothenia coriiceps Richardson, revealed seven acanthocephalan species, including two Echinorhynchida occurring in the intestine and five Polymorphida in the body cavity. Four species -Metacanthocephalus johnstoni Zdzitowiecki, Corynosoma arctocephali Zdzitowiecki, C. pseudohamanni Zdzitowiecki, C.shackletoni Zdzitowiecki - are reported for the first time from the area. Polymorphida were twice as numerous as Echinorhynchida. The dominant parasites were Aspersentis megarhynchus (Linstow) and C. hamanni (Linstow) in Notothenia coriiceps, and C. bullosum (Linstow) in Chaenocephalus aceratus (Lönnberg). The infection of Notothenia coriiceps and Chaenocephalus aceratus in this area was compared with these species and Notothenia rossii Richardson in neighbouring areas. The infection of Notothenia coriiceps at the South Orkney Islands is more similar to that at the South Shetland Islands than that found at South Georgia.

scholarly journals Contribution to the knowledge of the infection with Acanthocephala of a predatory Antarctic ice-fish Chaenocephalus aceratus

2010 ◽  
Vol 31 (4) ◽  
pp. 303-308 ◽  
Author(s):  
Zdzisław Laskowski ◽  
Krzysztof Zdzitowiecki
Keyword(s):  
Mature Female ◽  
South Shetland Islands ◽  
The South ◽  
Admiralty Bay ◽  
Shetland Islands ◽  
South Georgia ◽  
Orkney Islands ◽  
Open Sea ◽  
South Orkney Islands ◽  
Chaenocephalus Aceratus

Contribution to the knowledge of the infection with Acanthocephala of a predatory Antarctic ice-fish Chaenocephalus aceratus Adult females of a predatory fish, the blackfin icefish, Chaenocephalus aceratus examined at the South Shetland Islands and South Orkney Islands were by several orders of magnitude more infected with Acanthocephala than the males and immature females. Such phenomenon has not been observed in the neritic zone at South Georgia. Cystacanths of Corynosoma hamanni and Corynosoma pseudohamanni were the dominant parasites in Admiralty Bay, whereas Corynosoma bullosum was the dominant in the open sea off the South Shetland Islands and South Georgia, and in the sub-coastal waters off the South Orkney Islands. However, the dominance of C. bullosum was observed in several hosts in Admiralty Bay and the co-dominance of C. bullosum, C. hamanni, and C. pseudohamanni in one mature female in the neritic zone at the South Shetland Islands. Probably, these fish previously lived in the open sea. Cystacanths of Corynosoma arctocephali and Corynosoma shackletoni occurred in the fish in Admiralty Bay and off South Georgia. The former parasite was present also off the South Orkney Islands. One cystacanth of Andracantha baylisi was found off South Georgia. Two echinorhynchids, Aspersentis megarhynchus and Metacanthocephalus dalmori, occurred in the alimentary tracts of the fish caught in Admiralty Bay and one specimen of Echinorhynchus petrotschenkoi off the South Shetland Islands. The highest infection, amounting to 816 acanthocephalans, was found in a mature female in Admiralty Bay. One cystacanth of C. hamanni occurred in a single immature fish caught in the sub-coastal area off Deception Island.

Vitellogenin gene expression in males of the Antarctic fish Trematomus bernacchii from Terra Nova Bay (Ross Sea): A role for environmental cadmium?

Chemosphere ◽  
2007 ◽  
Vol 66 (7) ◽  
pp. 1270-1277 ◽  
Author(s):  
Adriana Canapa ◽  
Marco Barucca ◽  
Stefania Gorbi ◽  
Maura Benedetti ◽  
Sara Zucchi ◽  
...  
Keyword(s):  
Gene Expression ◽  
Ross Sea ◽  
Antarctic Fish ◽  
Terra Nova Bay ◽  
Trematomus Bernacchii ◽  
Terra Nova ◽  
Vitellogenin Gene ◽  
The Antarctic

Isomer-specific analysis and toxic potential evaluation of polychlorinated biphenyls in Antarctic fish, seabirds and Weddell seals from Terra Nova Bay (Ross Sea)

1995 ◽  
Vol 7 (1) ◽  
pp. 31-35 ◽  
Author(s):  
S. Focardi ◽  
R. Bargagli ◽  
S. Corsolini
Keyword(s):  
Polychlorinated Biphenyls ◽  
Antarctic Fish ◽  
Weddell Seal ◽  
The South ◽  
Adelie Penguin ◽  
South Polar Skua ◽  
Terra Nova Bay ◽  
Terra Nova ◽  
Toxic Potential ◽  
South Polar

To provide data on the degree of contamination of the marine ecosystem isomer-specific concentrations of polychlorinated biphenyls, including planar, mono- and di-ortho congeners, were measured in the Weddell seal, the Adélie penguin, the south polar skua, and in two species of Antarctic fish (Trematomus bernacchii and Chionodraco hamatus) from Terra Nova Bay, Antarctica. The results show a clear relation between PCB concentrations and trophic level, in the order fish < Adélie penguin < Weddell seal. The higher values found in the skua appear to be related to its migration to more contaminated lower latitudes. The data for the various PCB congeners were used to calculate toxic potential in the different animals. The 2,3,7,8-TCDD toxic equivalents of coplanar congeners were estimated by the “toxic equivalent factors” (TEFs) approach. The highest values of TEFs were found in the south polar skua and Weddell seal. Values in the other species were considerably lower.

Induction of mixed function oxidase (MFO) system in two species of antarctic fish from Terra Nova Bay (Ross Sea)

Polar Biology ◽  
1992 ◽  
Vol 12 (8) ◽  
Author(s):  
S. Focardi ◽  
C. Fossi ◽  
L. Lari ◽  
L. Marsili ◽  
C. Leonzio ◽  
...  
Keyword(s):  
Ross Sea ◽  
Antarctic Fish ◽  
Mixed Function Oxidase ◽  
Terra Nova Bay ◽  
Terra Nova
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