Distributional Patterns of Echinoderms in the Eurasian Sector of the Arctic Ocean

Anisimova, N. A.

doi:10.1007/978-1-4613-0677-1_11

Cited by 25 publications

(20 citation statements)

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“…There was no depth zonation or other factor (water mass or sediment) that would clearly separate observed coastal and neritic species of echinoderms. Compared to historical records collected between 1900and 1970(Hofsten 1915Clark 1970;Anisimova 1989;Gulliksen et al 1999), the new thermophilic elements are sparse (three new records: Acanthotrochus mirabilis, Diplopteraster multipes, Marthasterias glacialis and eight species that were identified in older records were not present in our collection), and local cold water species are still in the same places in which they have been reported over the last 100 years. It is probable that the echinoderm fauna of Spitsbergen coastal waters is homogenous in terms of distribution and species associations.…”

Section: Discussioncontrasting

confidence: 53%

“…The organisms were preserved on board/in the field in a 4% buffered formaldehyde solution or industrial alcohol and were identified Brought to you by | MIT Libraries Authenticated Download Date | 5/10/18 2:20 PM under a stereomicroscope in the lab either as dry or wet samples, depending on the specific group. Identification was attempted to the lowest taxonomic level possible using the keys by: Clark (1970) Anisimova (1989), Hayward and Ryland (1990) and Anisimova (1992) et al, and the dedicated web page (http:// www.iopan.gda.pl/ekologia/borszcz-echino/bor77.htm.) The number of species in the sample was used to create arrays as the basis for the multivariate analysis.…”

Section: Methodsmentioning

confidence: 99%

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Recent distribution of Echinodermata species in Spitsbergen coastal waters

Deja¹,

Węsławski²,

Borszcz³

et al. 2016

Polish Polar Research

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Thirty-two species of echinoderms from epibenthic sledges, dredges, scuba diving, and other samples (in total: 467 samples and c. 20 000 specimens) from fjords and coastal waters off Spitsbergen were analysed between 1996 and 2014. The most numerous group of echinoderms in the coastal waters off Spitsbergen is brittle stars (78% of the total individuals). The echinoderms do not form any clear assemblages according to depth or distance from glacial sedimentation and substrate. Some species prefer hard bottom (Strongylocentrotus droebachiensis) or water free from glacial suspensions (Ophiopholis aculeata). In contrast to the species listed above, we also found opportunistic species such as the starfish Urasterias lincki and the brittle star Ophiocten sericeum. These two species are distributed quite uniformly, regardless of the environmental factors. The majority of the species prefer a soft bottom below 200 m.

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Section: Discussioncontrasting

confidence: 53%

Section: Methodsmentioning

confidence: 99%

Recent distribution of Echinodermata species in Spitsbergen coastal waters

Deja¹,

Węsławski²,

Borszcz³

et al. 2016

Polish Polar Research

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“…data), a wideranging boreal-Arctic species with circumpolar distribution (Anisimova 1989). O. sarsi is also common in the adjacent Beaufort Sea (Carey 1977, Loggerwell & Rand 2009 and in the Japanese Pacific (Fujita & Ohta 1989).…”

Section: Community Compositionmentioning

confidence: 99%

Community structure of epibenthic megafauna in the Chukchi Sea

Bluhm

Iken²,

Mincks³

et al. 2009

Aquat. Biol.

111

105

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Climate change and increased focus on resource development in Arctic Seas have fueled interest in the Chukchi Sea, yet few quantitative studies have been conducted on the larger, epifaunal component of seafloor communities, which serves important roles in sediment biogeochemical processes and provides a food source for fishes and marine mammals. Here we provide quantitative data on the present condition of benthic epifaunal abundance and biomass from the Chukchi shelf and examine the influence of environmental variables on epifaunal communities. We . Overall, abundance and biomass were dominated by echinoderms (66 and 45%, respectively) and crustaceans (17 and 31%, respectively). The ophiuroid Ophiura sarsi and the snow crab Chionoecetes opilio overwhelmingly dominated abundance and biomass. The holothurian Myriotrochus rinkii also occurred in large numbers, and the urchin Strongylocentrotus pallidus was another major contributor to biomass. A total of 165 taxa (mostly species) were identified; the highest numbers were Mollusca (45) and Crustacea (33). Cluster analysis identified 6 distinct groups plus 6 unique stations with 54 to 88% between-cluster dissimilarity, with separation based largely on substrate type and latitude. Water mass characteristics and indices of food availability appeared less influential in generating the observed composition, abundance and biomass patterns. Comparisons with previous studies suggested an increase in overall epibenthic biomass since 1976, including an increase in the biomass of C. opilio.

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“…Golikov 1982). For the present work, the biogeographic characteristics of zoobenthic species were obtained from Anisimova (1989), Fedyakov & Naumov (1989, Gontar & Denisenko (1989), Denisenko & Galkin (1996) and Frolova (1996).…”

Section: Oceanography and Ice Conditionsmentioning

confidence: 99%

Macrozoobenthos of the Pechora Sea (SE Barents Sea): community structure and spatial distribution in relation to environmental conditions

Denisenko¹,

Денисенко²,

Lehtonen³

et al. 2003

Mar. Ecol. Prog. Ser.

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Extensive investigations on macrozoobenthic communities of the Pechora Sea (SE Barents Sea), carried out between 1991 and 1995, indicate that it is rich in terms of diversity, with a total of 712 taxa observed (505 identified to species level). Biomass distribution of zoobenthos varied greatly (2.6 to 1200 g m -2 wet wt). Average values recorded for the offshore areas are high for an Arctic environment, implying that the influence of the large Pechora River may extend far into the offshore area. In addition, intensive sedimentation of organic matter during the retreat of the highly productive ice-edge zone in the summer may also contribute to the observed high biomass. A method combining the abundance and biomass values of species was used to calculate an index approximating the production of each species. This index was used to distinguish the different community types in the area. In the study area, 13 benthic community types were identified, of which 2 main types covered most of the offshore areas. The concentration of total organic carbon (TOC) in the sediment was shown to have a strong influence on the diversity of the benthic communities, while both TOC and water depth affected the distribution of communities and the feeding mode of the dominant species. A community type consisting of surface deposit-feeders is the most widely distributed type in the area. Suspension feeders, however, dominate an extensive shallow offshore area. Boreal-Arctic species show a marked predomination (68.9%) in the whole Pechora Sea. The share of Arctic species is greater in the northern part influenced by cold water currents, while boreal species predominate in areas affected by warmer coastal waters. These observations indicate that the Pechora Sea functions as a transitional zone between boreal and Arctic biogeographic regions.KEY WORDS: Arctic · Biogeography · Community structure · Diversity · Macrozoobenthos · Pechora SeaResale or republication not permitted without written consent of the publisher

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Distributional Patterns of Echinoderms in the Eurasian Sector of the Arctic Ocean

Cited by 25 publications

References 1 publication

Recent distribution of Echinodermata species in Spitsbergen coastal waters

Recent distribution of Echinodermata species in Spitsbergen coastal waters

Community structure of epibenthic megafauna in the Chukchi Sea

Macrozoobenthos of the Pechora Sea (SE Barents Sea): community structure and spatial distribution in relation to environmental conditions

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