Spitsbergen glacial bays macrobenthos - a comparative study

Włodarska‐Kowalczuk, Maria; Węsławski, Jan Marcin; Kotwicki, Lech

doi:10.1007/s003000050277

Cited by 77 publications

(63 citation statements)

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“…Włodarska−Kowalczuk et al (1998) listed 116 taxa in glacial bays in Spitsbergen and later gave precise list of 95 taxa for Yoldiabukta glacial bay in Isfjorden (Włodarska−Kowalczuk et al 1999 Chao2 estimator indicated the possible presence of over 400 species, so possi− bly about 100 species are still to be found in the fjord (taking into account 60 spe− cies previously found in Hornsund and not noted in this study). This shows that further research on Hornsund soft−bottom fauna with more sampling effort is needed.…”

Section: Discussionmentioning

confidence: 55%

“…Arctic benthic assem− blages are rather poor in truly Arctic species and cold−eurythermal boreal immi− grants are typical of many Arctic locations (Piepenburg 2005). Arctic−boreal ele− ments made up over 55% of species in the Kara Sea (Jørgensen et al 1999), 54% to 60% depending on the fjord zone in Disko Fjord, west Greenland (Schmid and Piepenburg 1993), 69% in Franz Josef Land archipelago (Dahle et al 2009), about 45% in Skoddebukta, west Spitsbergen and Franz Joseph Land (Włodarska et al 1996) and 29% of species in Spitsbergen glacial bays (Włodarska−Kowalczuk et al 1998). The low occurrence of species of Arctic origin is typical of Arctic ma− rine benthos and is explained by short period of its evolution, which did not allow for much speciation as far (Curtis 1975).…”

Section: Discussionmentioning

confidence: 99%

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Soft bottom macrofauna of an All Taxa Biodiversity Site: Hornsund (77○N, Svalbard)

Kędra¹,

Gromisz²,

Jaskuła³

et al. 2010

Polish Polar Research

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Abstract:Hornsund, an Arctic fjord in the west coast of Spitsbergen (Svalbard), was se− lected as All Taxa Biodiversity Inventory (ATBI) site under EU 5th Framework Concerted Action BIOMARE (2000)(2001)(2002), especially due to its pristine, undisturbed natural charac− ter. On the base of large material (89 stations located throughout the fjord and 129 Van Veen grab samples) collected during cruises of RV Oceania in July in 2002, 2003, 2005 and 2007 and literature search a comprehensive list of species recorded within Hornsund area, on the soft bottom with depth range of 30-250 m is provided. Over 220 species were identified in− cluding 93 species of Polychaeta, 62 species of Mollusca and 58 species of Crustacea. Spe− cies list is supported by information on the zoogeographical status, body length and biologi− cal traits of dominant species. Need for further research on Hornsund soft bottom fauna with more sampling effort is highlighted.

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Section: Discussionmentioning

confidence: 55%

Section: Discussionmentioning

confidence: 99%

Soft bottom macrofauna of an All Taxa Biodiversity Site: Hornsund (77○N, Svalbard)

Kędra¹,

Gromisz²,

Jaskuła³

et al. 2010

Polish Polar Research

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show abstract

“…data). Interestingly, L. mammosus, a non-selective mobile deposit-feeding orbiniid burrowing in the sediment (Knox 1977), did not occur in Brepollen, although it is known for its high reproductive plasticity and adaptability to different habitat conditions (Kruse 2003) and was one of the dominants in other Svalbard glacial bays (Włodarska-Kowalczuk et al 1998). Also, carnivore Lumbrineris spp.…”

Section: Discussionmentioning

confidence: 99%

“…Benthic diversity and biomass can change significantly from the outer to the inner parts of Arctic and Subarctic fjords (Kendall and Aschan 1993;Holte and Oug 1996;Włodarska-Kowalczuk et al 2005;Blanchard et al 2010). The chronic disturbance associated with glacial activity is especially visible in the shallow areas located close to the glacial terminus (Włodarska-Kowalczuk et al 1998;Włodarska-Kowalczuk and Pearson 2004;Siciński et al 2012); however, this influence can be very strong to as deep as 100 m (Siciński 2004). Thus, it is important to show the effects of glacial disturbance on benthic fauna in the deeper parts of fjords.…”

Section: Introductionmentioning

confidence: 99%

Distribution patterns of polychaete fauna in an Arctic fjord (Hornsund, Spitsbergen)

et al. 2013

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Polychaetes are one of the most important groups of benthic organisms in marine ecosystems. They dominate on the Arctic shelf and play an important role in ecosystem functioning. This study focuses on the polychaete biodiversity and their distribution patterns in Hornsund, an open glacial fjord, in western Spitsbergen and provides important baseline data for future studies of temporal fluctuations in benthic fauna. The main aim of this study was to assess how the polychaete abundance, biomass, diversity, community structure, and function vary along the Hornsund fjord's axis, in relation to the environmental factors. Eighty-eight polychaete taxa were identified; an average density was 457 ind. m -2 ± 237.5 SD. Three assemblages were distinguished (INNER, MIDDLE, and OUTER) along the fjord axis, reflecting the intensity of glacial disturbance. A clear division between the highly disturbed inner part of the fjord (Brepollen) and the less impacted middle and outer parts was observed. Continuous gradients in abundance, biomass, and diversity were found with all those values diminishing toward the inner region of the fjord. The polychaete assemblages' indices were significantly correlated with bottom temperature, sediment characteristics (grain size), and distance to the glacier (longitude). No significant correlations were found with depth or total organic carbon content. Carnivore and motile surface deposit feeding polychaete species dominated in the areas close to the glaciers, while the OUTER community was dominated by carnivores and surface sessile and discretely motile species, and had more complex trophic structure, with multiple species representing different functional groups including carnivores, sessile, discretely motile, and motile surface deposit feeders and motile burrowers.

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“…Arctic benthic communities inhabiting shallow glacial bays were intensively studied, mostly on Spitsbergen (Wlodarska et al 1996;Wlodarska-Kowalczuk et al 1998, 1999Wlodarska-Kowalczuk and Weslawski 2001). In the Antarctic, similar studies are still scarce and often are based on higher taxa abundance and photographic surveys or are focused on only one group of invertebrates (Richardson and Hedgpeth 1977;Sicinski et al 1996;Gambi et al 1997;Sahade et al 1998;Sicinski 2004;Brown et al 2004;Bowden 2005).…”

Section: Introductionmentioning

confidence: 99%

Macrozoobenthos of two Antarctic glacial coves: a comparison with non-disturbed bottom areas

et al. 2011

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There are only few studies on shallow Antarctic benthic communities associated with habitats affected by intense mineral sedimentation inflow. The analysis of macrofaunal communities associated with two shallow, isolated glacial coves was performed in Admiralty Bay (King George Island) and compared with non-disturbed sites. Multivariate analyses (hierarchical classification, nMDS) clearly separated glacial cove communities (two assemblages) from the sites situated outside both basins (two assemblages). The community influenced by the streamflow of glacial discharge of meltwater situated in the area with sandy-clay-silt sediments had a very low species richness, diversity and abundance. It was dominated by eurytopic, motile deposit feeding polychaetes such as Mesospio moorei, Tharyx cincinnatus and Leitoscoloplos kerguelensis as well as the bivalve Yoldia eightsi. The second glacial community of the area located at a grater distance from the outlet of the stream was characterized by sandy-clay-silt and clay-silt deposits and showed also a low diversity and species richness. The most abundant here were peracarid crustaceans, with the dominant opportunistic feeder Cheirimedon femoratus. Community from the non-disturbed area with silty-clay-sand, and silty-sand sediments had higher species richness and diversity. The assemblage of fauna from the sandy bottom has values of those two indexes similar to those found in the disturbed areas.

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Spitsbergen glacial bays macrobenthos - a comparative study

Cited by 77 publications

References 0 publications

Soft bottom macrofauna of an All Taxa Biodiversity Site: Hornsund (77○N, Svalbard)

Soft bottom macrofauna of an All Taxa Biodiversity Site: Hornsund (77○N, Svalbard)

Distribution patterns of polychaete fauna in an Arctic fjord (Hornsund, Spitsbergen)

Macrozoobenthos of two Antarctic glacial coves: a comparison with non-disturbed bottom areas

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