Isopods (Crustacea, Isopoda) from the Spanish ?Bentart-94/95? expeditions to the South Shetland Islands (sub-Antarctic)

Castelló, José R.

doi:10.1007/s00300-004-0646-9

Cited by 6 publications

(12 citation statements)

References 31 publications

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“…Moreover, many of the species recorded in our study have been shown to occur over wider depth ranges at other Antarctic sites (e.g. Hodgson 1910;Castello 2004;Choudhury and Brandt 2009), although bathymetric distribution of a species may differ between semi-closed basins such as the Admiralty Bay and open shelf sites. On the other hand, polychaetes and amphipods showed a clear depth zonation in the Admiralty Bay (Siciński 2004;Siciński 2010b, 2012; Ja_ zd_ zewska and Siciński 2017).…”

Section: Discussionmentioning

confidence: 62%

“…Isopods are the third most speciose macrofaunal group in the Admiralty Bay, following the Amphipoda (172 species) and Polychaeta (162 species) ). This small (surface area of 120 km 2 ) basin hosts about 23% of all the isopod species described from the Southern Ocean (DeBroyer et al 2011) and about 64% of isopods found off the South Shetland Islands (Castello 2004), although those proportions will certainly change once new species from the deep sea are described ). The high diversity of the Bay's isopods might be associated with a multitude of various microhabitats in the basin (Sicinski et al 2011), and also with the zoogeographic location of the South Shetlands.…”

Section: Discussionmentioning

confidence: 99%

“…Moreover, no studies have addressed exclusively distribution patterns of the isopod fauna. The areas studied most thoroughly in terms of the Southern Ocean Isopoda species richness are large basins, including the Ross Sea (Choudhury and Brandt 2009), the Weddell Sea (Brandt 1992), the Bellingshausen Sea (Brandt 1999) and the region of the South Shetland Islands (Castello 2004). Some recent studies tackled also the deep-sea isopod fauna from different parts of the Southern Ocean (e.g.…”

Section: Introductionmentioning

confidence: 99%

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Low abundance and high species richness: the structure of the soft-bottom isopod fauna of a West Antarctic glacial fjord

et al. 2017

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Isopods belong to the most speciose groups of the Antarctic benthic fauna, although the knowledge on their diversity and small-scale distribution patterns is still limited. Here we analyze the diversity of the isopod fauna in the Admiralty Bay, a glacial fjord on the King George Island. The basin is located in the region of the Antarctic Peninsula, the fastest warming area of the Southern Ocean. The study provides important baseline data for future research, particularly with respect to temporal fluctuations in benthic fauna, associated with global changes observed in that part of the world. Forty species of isopods representing 19 families were recorded on the soft bottom of the Admiralty Bay. The analyses were based on 99 quantitative samples collected, within the 20-502-m depth range, with a 0.1 m 2 van Veen grab. The materials for the analyses were obtained in the austral summer seasons of 1984/1985 and 1985/1986. The data revealed a high number of isopod species occurring at a low abundance, the mean abundance amounting to 4.8 ± 8.6 ind./0.1 m 2 . Most of the species occurred at low abundances, 25% of the species being represented by singletons. Caecognathia polaris, the most abundant species, showed the mean abundance of merely 1.2 ± 4.2 ind./0.1 m 2 . Species richness, diversity and abundance of the isopod fauna were much higher in the central basin of the Admiralty Bay than in the Ezcurra Inlet, an area affected by a strong disturbance of glacial origin.

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Section: Discussionmentioning

confidence: 62%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Low abundance and high species richness: the structure of the soft-bottom isopod fauna of a West Antarctic glacial fjord

et al. 2017

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“…However, most of the previous studies of the Antarctic isopod fauna were dedicated to taxon− omy, and to large scale patterns of species richness and zoogeography (e.g. Brandt 1990Brandt , 1992Teodorczyk and Wagele 1994;Castello 2004;Brandt et al 2005;Kai− ser et al 2007Kai− ser et al , 2009Choudhury and Brandt 2009;Kaiser 2014, and references therein). There are few studies analyzing diversity and patterns of distribution at smaller scales, especially at the microhabitat level.…”

Section: Introductionmentioning

confidence: 99%

Diversity and abundance of isopod fauna associated with holdfasts of the brown alga Himantothallus grandifolius in Admiralty Bay, Antarctic

Zemko¹,

Pabis²,

Siciński³

et al. 2015

Polish Polar Research

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Fifteen species of isopods, representing 10 families, were recorded on holdfasts of the brown alga Himantothallus grandifolius. Material was collected in the 15-75 m depth range during the austral summer of 1979/80. The isopod community was dominated by Caecognathia antarctica (mean density 12.4 ± 13.1 ind./100 ml) followed by Cymodocella tubicauda (mean density 0.7 ± 2.1 ind./100 ml). Mean total density of isopods reached the value of 16.1 ± 14.0 ind./100 ml. The comparison with the other studies showed that hold− fasts are inhabited by a distinctive isopod community that differs from the isopod fauna as− sociated with soft bottom of Admiralty Bay.

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“…Papers which were consulted to prepare this list are mentioned in Winkler (1994b). Other papers utilised include the following: Kussakin (1965), Richardson and Hedgpeth (1977), Branch et al (1991), Teodorczyk and Wägele (1994), Wilson and Wägele (1994), Serov and Wilson (1995), Mariani et al (1996), Lorenti and Mariani (1997), Brandt (1999), Castelló (1999Castelló ( , 2004, Cariceo et al (2002), Lörz and Brandt (2003), and Just and Wilson (2004). For the faunistic analysis, the localities marked with one or two asterisks and the specimens identified as "Paramunna cf.…”

Section: Methodsmentioning

confidence: 99%

The shallow-water Asellota (Crustacea: Isopoda) from the Beagle Channel: Preliminary taxonomic and zoogeographical results

Doti¹,

Roccatagliata²,

Zelaya³

2005

Sci. Mar.

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SUMMARY: The shallow-water Asellota from the Beagle Channel were investigated, based on material collected at four localities in [2001][2002]. A total of 3,124 asellotes were sorted, and three new species and 12 new records of distribution were reported. The Paramunnidae showed the highest species diversity and abundance (11 species and 1,463 specimens). The present research raises the number of species known from the Beagle Channel to 23; of these, 16 were previously reported from the Magellan Straits, representing 69% of similarity. Based on the present results and published data, the faunistic affinities for the shallow-water Asellota was 30% between the Magellan region and the Scotia Arc, and 26% between the Magellan region and the Antarctic Peninsula.

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Isopods (Crustacea, Isopoda) from the Spanish ?Bentart-94/95? expeditions to the South Shetland Islands (sub-Antarctic)

Cited by 6 publications

References 31 publications

Low abundance and high species richness: the structure of the soft-bottom isopod fauna of a West Antarctic glacial fjord

Low abundance and high species richness: the structure of the soft-bottom isopod fauna of a West Antarctic glacial fjord

Diversity and abundance of isopod fauna associated with holdfasts of the brown alga Himantothallus grandifolius in Admiralty Bay, Antarctic

The shallow-water Asellota (Crustacea: Isopoda) from the Beagle Channel: Preliminary taxonomic and zoogeographical results

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