Gastrointestinal Microbiota and Parasite-Fauna of Wild Dissostichus eleginoides Smitt, 1898 Captured at the South-Central Coast of Chile

Dissotichus eleginoides has a discontinuous circumpolar geographic distribution restricted to mountains and platforms, mainly in Subantarctic and Antarctic waters of the southern hemisphere, including the Southeast Pacific, Atlantic and Indian oceans and in areas surrounding the peninsular platforms of subantarctic islands. The aim of this work was to determine and characterize the gastrointestinal parasitic and microbial fauna of specimens of D. eleginoides captured in waters of the south-central zone of Chile. The magnitude of parasitism in D. eleginoides captured in waters of the south-central zone of Chile is variable, and the parasite richness is different from that reported in specimens from subantarctic environments. Next-generation sequencing (NGS) of the microbial community associated to intestine showed a high diversity, where Proteobacteria, Firmicutes, and Bacteriodetes were the dominant phyla. However, both parasitic and microbial structures can vary between fish from different geographic regions

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THE STRUCTURE OF THE SEED YIELD OF BROAD BEANS IN THE SOUTH CENTRAL ZONE OF THE SOUTH OF THE CENTRAL BLACK EARTH REGION

VEGETABLE CROPS OF RUSSIA ◽

10.18619/2072-9146-2018-1-56-58 ◽

2018 ◽

pp. 56-58

Author(s):

Yu. N. Kurkina

Keyword(s):

Seed Yield ◽

Central Zone ◽

The South ◽

South Central ◽

Broad Beans

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Thrust-related dome structures in the Karibib district and the origin of orthogonal fabric domains in the south Central Zone of the Pan-African Damara belt, Namibia

Precambrian Research ◽

10.1016/j.precamres.2004.05.001 ◽

2004 ◽

Vol 133 (3-4) ◽

pp. 283-303 ◽

Cited By ~ 43

Author(s):

Alexander F.M Kisters ◽

L.Smith Jordaan ◽

Kathrin Neumaier

Keyword(s):

Central Zone ◽

The South ◽

South Central ◽

Pan African

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Demersal fish parasite fauna around the South Shetland Islands: high species richness and low host specificity in deep Antarctic waters

Polar Biology ◽

10.1007/s00300-007-0312-0 ◽

2007 ◽

Vol 30 (12) ◽

pp. 1513-1522 ◽

Cited By ~ 16

Author(s):

Harry W. Palm ◽

Sven Klimpel ◽

Thorsten Walter

Keyword(s):

Species Richness ◽

Host Specificity ◽

Demersal Fish ◽

Parasite Fauna ◽

South Shetland Islands ◽

Fish Parasite ◽

The South ◽

Shetland Islands ◽

Antarctic Waters ◽

High Species Richness

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Parasite community of a temporal notothen fish from intertidal rocky pools in south-central Chile: Is it similar to other fish from the same habitat?

Revista de biología marina y oceanografía ◽

10.22370/rbmo.2018.53.2.1294 ◽

2018 ◽

Vol 53 (2) ◽

pp. 209 ◽

Cited By ~ 1

Author(s):

Gabriela Muñoz ◽

Francisco Vildoso ◽

Mario George-Nascimento

Keyword(s):

South America ◽

Parasite Community ◽

Rocky Intertidal ◽

Central Chile ◽

Parasite Richness ◽

South Central ◽

Antarctic Waters ◽

Similarity Indices ◽

Intertidal Pools ◽

Anisakid Nematodes

Notothen fishes (Nototheniidae) have been recorded on the coasts of South America, from 35°S to southern. Little is known about the biology of intertidal notothen fishes or their relationships with other species, including parasites. Here, we analyzed the parasitic fauna of a species of Notothenia collected from the rocky intertidal of Lebu, south-central Chile (36°S) and compared the parasite community of this host with other 9 fish species commonly found in rocky intertidal pools. Among the tested species, Notothenia sp. had the highest parasite richness (21 parasitic taxa vs. 1 to 9 parasitic taxa). The composition of parasite species was different among fishes, with similarity indices between 0 and 33%. The parasite composition of Notothenia sp. was most similar to Calliclinus geniguttatus (27%). The most abundant and prevalent parasites found in Notothenia sp. were the copepod Caligus cf. cheilodactyli, Tetraphyllidea larvae, anisakid nematodes, and several acanthocephalan species, which are typical of other fish from the subtidal and bento-demersal zones. Therefore, we conclude that the juveniles of Notothenia sp. were a few months old and had their parasites when reaching the intertidal zone, acquired some generalist parasites during their stay in this habitat, such as Holobomolochus chilensis and Lecithaster macrocotyle. Most notothen fishes are from Antarctic and Sub-Antarctic waters, therefore, it is possible that this fish came from another habitat but also from the austral region of South America. Notothenia sp. could not be specifically identified because of different results between morphological and genetic analyses.

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