Admiralty Bay Benthos Diversity—A census of a complex polar ecosystem

Siciński, Jacek; Jażdżewski, Krzysztof; Broyer, Claude De; Presler, Piotr; Ligowski, Ryszard; Nonato, Edmundo Ferraz; Corbisier, Thaís Navajas; Petti, Mônica Angélica Varella; Brito, Tânia Aparecida Silva; Lavrado, Helena Passeri; Błażewicz, Magdalena; Pabis, Krzysztof; Jażdżewska, Anna; Campos, Lúcia S.

doi:10.1016/j.dsr2.2010.09.005

Cited by 89 publications

(95 citation statements)

References 59 publications

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“…On the other hand, the Admiralty Bay is a small area that was intensively sampled during the last 35 years. This could have also accounted for the list of taxa being more comprehensive than elsewhere (see also Siciński et al 2011). In a similar basin (Arthur Harbour, Anvers Island), 69 samples yielded as few as 39 isopod species.…”

Section: Discussionmentioning

confidence: 99%

“…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%

“…The amount of skeletal fractions increases along the Inlet's axis too (Rudowski and Marsz 1996;Siciński 2004;Campos et al 2013). At the same time, the proportion of sand is higher in the central basin, particularly in the shallower sublittoral (Siciński 2004;Siciński et al 2011).…”

Section: Study Areamentioning

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: 99%

Section: Discussionmentioning

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

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“…Embora sejam conhecidas as dificuldades e limitações dos estudos no ambiente marinho antártico, pode-se dizer que a macrofauna bentônica que habita as águas rasas dessa região é relativamente bem conhecida, principalmente aquela do sistema marinho da Baía do Almirantado, Ilha Rei George (Echeverría & Paiva, 2006;Sicinski, et al, 2011). Esse volume de informações está relacionado ao longo tempo de pesquisas desenvolvidas na região , cujos resultados tem revelado que Polychaeta (Annelida), Mollusca e Crustacea são os grupos mais representativos em diversidade e abundância na macrofauna bentônica (Arnaud, 1974;Knox, 1977;Cantone, 1995;Bromberg et al, 2000).…”

Section: Introductionunclassified

“…Dentre os vários táxons componentes da macrofauna bentônica na Antártica, os Polychaeta são os que possuem maior riqueza e abundância, sendo característicos também por apresentarem ampla distribuição Volume 52(13):151-165, 2012 batimétrica e biogeográfica (Knox, 1997;Gambi & Mariani, 1999;Bromberg et al, 2000;Sicinski et al, 2011).…”

Section: Introductionunclassified

Levantamento de Polychaeta (Annelida) na Baía do Almirantado, Ilha Rei George (Antártica)

Garraffoni

Moura

Vasconcelos

et al. 2012

Pap. Avulsos Zool. (São Paulo)

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The Census of Antarctic Marine Life: The First Available Baseline for Antarctic Marine Biodiversity

Schiaparelli

Danis²,

Wadley

et al. 2012

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The Census of Antarctic Marine Life (CAML, www.caml.aq) was a 5-year long international project that focused the attention on the ice-bound oceans of Antarctica during the International Polar Year (IPY) in 2007–08, bringing together\ud researchers from 30 different countries and more than 50 institutions. It was one of the fifteen IPY-endorsed biological projects devoted to Antarctica (Project #83)\ud and coordinated field operations of 18 research voyages in Antarctica during IPY and/or within the CAML life-span.\ud CAML’s main objectives were to study the evolution of life in Antarctic waters to determine how this had influenced the diversity of the present biota and to use these observations to predict how it might respond to future change. CAML was also one of the fourteen projects of the international Census of Marine Life (CoML, www.coml.org) (Gutt et al. 2010), each focusing on specific geographic environments or subject areas, with the aim to understand marine biodiversity and set reference baselines to allow measuring change. CAML’s sister project was the Arctic Ocean Diversity (ArcOD), devoted to the census of Arctic\ud marine biodiversity. Thanks to strong interaction with this project, it is now possible to draw comparisons between differences in ecological structure and dynamics of the Arctic and Southern Oceans (Gradinger et al. 2010; Gutt et al. 2010)

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Admiralty Bay Benthos Diversity—A census of a complex polar ecosystem

Cited by 89 publications

References 59 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

Levantamento de Polychaeta (Annelida) na Baía do Almirantado, Ilha Rei George (Antártica)

The Census of Antarctic Marine Life: The First Available Baseline for Antarctic Marine Biodiversity

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