Parasites of the Antarctic rattail Macrourus whitsoni (Regan, 1913) (Macrouridae, Gadiformes)

Walter, Thorsten; Palm, Harry W.; Piepiorka, Sandra; Rückert, Sonja

doi:10.1007/s00300-002-0407-6

Cited by 31 publications

(30 citation statements)

References 24 publications

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“…To date, five nominal species of the genus Gonocerca: G. haedrichi Campbell et Munroe, 1977, G. lobata, G. muraenolepisi, G. phycidis Manter, 1925, G. trematomi Byrd, 1963 have been recorded from the Southern Ocean (Byrd, 1963;Gibson, 1976;Parukhin, 1989;Zdzitowiecki, 1991;Walter et al, 2002; the present study). However, some authors believe that G. trematomi and probably G. lobata should be synonymised with G. phycidis (Prudhoe, Bray, 1973;Gibson, 1976;Zdzitowiecki, 1979;Zdzitowiecki et al, 1999).…”

Section: Phylogenetic Analysismentioning

confidence: 48%

Redescription of trematode Gonocerca muraenolepisi Paruchin et Ljadov, 1979 (Hemiuroidea: Derogenidae), a body cavity parasite of Antarctic fishes, with a discussion of its phylogenetic position

2016

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The redescription of Gonocerca muraenolepisi Paruchin et Ljadov, 1979 was made on the specimens collected from Muraenolepis marmorata Günther, 1880 (Gadiformes), caught in the Ross Sea, and on extant paratypes-one of which was designated as neotype-is given in this paper. Phylogenetic relations of G. muraenolepisi were inferred by Bayesian analysis of partial sequences from 28S rDNA. Molecular data are not consistent with the traditional point of view about the position of the genus Gonocerca Manter, 1925, and subfamily Gonocercinae that are based on this genus in the family Derogenidae. Also, molecular data does not support the presence of the genus Hemipera Nicoll 1913, in the subfamily Gonocercinae. The taxonomical position and species lists of representatives of the Gonocercinae need further revision.

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Section: Phylogenetic Analysismentioning

confidence: 48%

Redescription of trematode Gonocerca muraenolepisi Paruchin et Ljadov, 1979 (Hemiuroidea: Derogenidae), a body cavity parasite of Antarctic fishes, with a discussion of its phylogenetic position

2016

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“…1d). Three species of copepods infest M. whitsoni (Walter et al 2002) and we suspect that our images depict a member of the genus Lophoura because it is attached externally rather than in the oral or opercular cavities.…”

Section: Comments On Fish In Imagesmentioning

confidence: 94%

Photographic survey of benthos provides insights into the Antarctic fish fauna from the Marguerite Bay slope and the Amundsen Sea

et al. 2012

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Abstract:We reviewed photographic images of fishes from depths of 381-2282 m in Marguerite Bay and 405-2007 m in the Amundsen Sea. Marguerite Bay fishes were 33% notothenioids and 67% non-notothenioids. Channichthyids (47%) and nototheniids (44%) were the most abundant notothenioids. The deep-living channichthyid Chionobathyscus dewitti (74%) and the nototheniid genus Trematomus (66%) were the most abundant taxa within these two families. The most abundant non-notothenioids were the macrourid Macrourus whitsoni (72%) and zoarcids (18%). Amundsen Sea fishes were 87% notothenioids and 13% non-notothenioids, the latter exclusively Macrourus whitsoni. Bathydraconids (38%) and artedidraconids (30%) were the most abundant notothenioids. We observed that Macrourus whitsoni was benthopelagic and benthic and infested by large ectoparasitic copepods. Juvenile (42 cm) Dissostichus mawsoni was not neutrally buoyant and resided on the substrate at 1277 m. Lepidonotothen squamifrons was seen near and on nests of eggs in early December. A Pogonophryne sp. from 2127 m was not a member of the deep-living unspotted P. albipinna group. Chionobathyscus dewitti inhabited the water column as well as the substrate. The pelagic zoarcid Melanostigma gelatinosum was documented in the water column a few metres above the substrate. The zoogeographic character of the Marguerite Bay fauna was West Antarctic or low-Antarctic and the Amundsen Sea was East Antarctic or high-Antarctic.

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“…In a census of species from the Southern Ocean (De Broyer et al, 2014), the diversity of approximately 9000 different species of organismsincluding algae, invertebrates and vertebrates, and excluding parasiteswas considered. Nevertheless, approximately 270 parasite species have been recorded in 145 fish species, as shown in a checklist of parasites provided by Oğuz et al (2015), complemented with other sources (Kabata, 1965;Rokicki & Skorá, 1986;Sosiński & Janusz, 1986;Rokicki & Zdzitowiecki, 1991;Rokicki et al, 1992;Rohde et al, 1998;Walter et al, 2002;Kuhn et al, 2018). However, the number of species is insufficient to analyse biodiversity, which refers to the variability of life on Earth, and different methods have been widely discussed (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, this assertion may represent subjective appreciations based on parasite communities composed of more than ten species (e.g. Walter et al, 2002;Münster et al, 2017;Muñoz & Rebolledo, 2018). However, we found several antecedents suggesting a contrary hypothesis, which is that the parasite diversity of Antarctic fish is lower than that of subantarctic fisha statement supported by five facts: (1) parasite richness declines from tropical to Antarctic environments (Rohde, 1984); (2) the species diversity of marine fish decreases from the Northern Ocean to the Southern Ocean along the coast of Chile because of water temperature (Ojeda et al, 2000;Navarrete et al, 2014);…”

Section: Introductionmentioning

confidence: 99%

Endoparasitic diversity from the Southern Ocean: is it really low in Antarctic fish?

Muñoz

Cartes

2020

J. Helminthol.

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The biodiversity and composition of endoparasites in fish obtained from the Antarctic and subantarctic zones are compared in this study. Several fish were collected in the summer from Antarctica (King George Island) and the Southern Pacific coast (Strait of Magellan and Almirante Montt Gulf). This database was complemented with published information on fish endoparasite communities from both zones, with specimens of fish sample size n ≥ 15. Thus, 31 fish species were analysed in this study, which altogether had 79 parasite species. Diversity indices were calculated for the parasite community of each fish species. Then they were compared between the Antarctic and subantarctic zones. Parasite species composition and host specificity (as the number of fish species used by a parasite species) were also analysed and compared between zones. The diversity indices and the abundance of parasites were significantly higher in the Antarctic than the subantarctic fish. Few parasite species (7.6%) were shared between fish from both zones, showing significant differences in parasite composition. Antarctic parasites were less host-specific than subantarctic parasites, which allowed the coexistence of several parasite species in the fish. The high parasite abundance in Antarctic fish could trigger sympatric speciation in certain parasitic lineages or the exploitation of new resources, resulting in more parasite species than those in subantarctic environments. The high abundance of Antarctic parasites implies different methods and rates of transmission than those of subantarctic parasites. In addition, more alternative fish hosts were used by the Antarctic than subantarctic parasites. This altogether indicates that host–parasite interaction dynamics significantly differ between the Antarctic and subantarctic systems.

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Parasites of the Antarctic rattail Macrourus whitsoni (Regan, 1913) (Macrouridae, Gadiformes)

Cited by 31 publications

References 24 publications

Redescription of trematode Gonocerca muraenolepisi Paruchin et Ljadov, 1979 (Hemiuroidea: Derogenidae), a body cavity parasite of Antarctic fishes, with a discussion of its phylogenetic position

Redescription of trematode Gonocerca muraenolepisi Paruchin et Ljadov, 1979 (Hemiuroidea: Derogenidae), a body cavity parasite of Antarctic fishes, with a discussion of its phylogenetic position

Photographic survey of benthos provides insights into the Antarctic fish fauna from the Marguerite Bay slope and the Amundsen Sea

Endoparasitic diversity from the Southern Ocean: is it really low in Antarctic fish?

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