Changes in the decapod fauna of an Arctic fjord during the last 100 years (1908–2007)

Berge, Jørgen; Renaud, Paul E.; Eiane, Ketil; Gulliksen, Bjørn; Cottier, Finlo; Varpe, Øystein; Brattegard, Torleiv

doi:10.1007/s00300-009-0594-5

Cited by 36 publications

(24 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This also follows a general observation by Thrush et al (2006) regarding the homogenisation of habitats that follows global warming. Stability refers to the taxa presence in the fjords (Renaud et al 2007;Berge et al 2009), whereas homogeneity was recorded on the shelf (Dyer et al 1984). Species having pelagic larvae, as is the case for most of our echinoderms, are expected to expand their occurrence ranges with the ongoing borealisation of the Svalbard area (Berge et al 2005).…”

Section: Discussionmentioning

confidence: 99%

“…Recently, some of the old sampling stations were revisited and revealed a surprising stability of some animal taxa such as Decapoda (Berge et al 2009) and the benthos in general (Renaud et al 2007;Kędra et al 2011). Large-scale fishery research in the Barents and Norwegian seas led to the use of by-catch animals that may serve as indicators of hydrological and climatic variability (Blacker 1957;Dyer et al 1984).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Recent distribution of Echinodermata species in Spitsbergen coastal waters

Deja¹,

Węsławski²,

Borszcz³

et al. 2016

Polish Polar Research

View full text Add to dashboard Cite

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.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Recent distribution of Echinodermata species in Spitsbergen coastal waters

Deja¹,

Węsławski²,

Borszcz³

et al. 2016

Polish Polar Research

View full text Add to dashboard Cite

show abstract

“…Rising temperatures cause a decrease in physical disturbance by ice and a northward expansion and higher abundances of many boreal species (Weslawski et al 2011 and references therein). For example, benthic predatory crabs such as Cancer pagurus and H. araneus show increasing densities at the Norwegian and western Svalbard coast, respectively (Woll et al 2006;Berge et al 2009;Fagerli et al 2014). Due to higher consumer occurrence, we expect that new predator-prey interactions will develop in the future.…”

Section: Discussionmentioning

confidence: 99%

Do bioturbation and consumption affect coastal Arctic marine soft-bottom communities?

et al. 2015

View full text Add to dashboard Cite

Biotic factors such as bioturbation and predation affect abundance and species composition of marine soft-bottom communities from tropical to temperate regions, but their impact has been rarely investigated in Arctic coastal systems. By conducting a factorial manipulative field experiment, we excluded the bioturbating lugworm Arenicola marina and predacious consumers from a sedimentary nearshore area in Kongsfjorden (Spitsbergen) for 70 days to explore their role in structuring the benthic community. The removal of A. marina caused an increase in average species number by 25 %, a doubling increase in the average number of individuals and an increase in dry mass of benthic organisms by, on average, 73 % in comparison with untreated areas. Additionally, community composition was significantly modified by lugworm exclusion resulting in higher average densities of the cumacean Lamprops fuscatus (4.2-fold), the polychaete worms Euchone analis (3.7-fold) and Pygospio cf. elegans (1.5-fold), the bivalve Crenella decussata (2.8-fold) and the amphipod Crassicorophium crassicorne (1.2-fold), which primarily contribute to the observed differences. Consumer exclusion, by contrast, showed no effects on the response variables. This result was independent from bioturbation due to missing interaction between both biotic factors. We conclude that present levels of bioturbation may considerably affect Arctic coastal soft-bottom communities. In contrast, predation by macro-epibenthic consumers currently seems to be of minor importance. This might change in a predicted warmer Arctic with assumed higher predator abundances and a northward expansion of boreal consumers.

show abstract

“…Among the boreal species advancing into the Arctic are marine invertebrates and fish (e.g. Berge et al, 2005Berge et al, , 2009Węsławski et al, 2010Węsławski et al, , 2011Denisenko, 2013;Josefson et al, 2013;Kędra et al, 2015). Some of them are the intermediate hosts of helminths circulating in the nearshore areas of boreal seas.…”

Section: Biodiversity and Distribution Of Helminthsmentioning

confidence: 99%

Patterns and processes influencing helminth parasites of Arctic coastal communities during climate change

Галактионов

2017

J. Helminthol.

View full text Add to dashboard Cite

This review analyses the scarce available data on biodiversity and transmission of helminths in Arctic coastal ecosystems and the potential impact of climate changes on them. The focus is on the helminths of seabirds, dominant parasites in coastal ecosystems. Their fauna in the Arctic is depauperate because of the lack of suitable intermediate hosts and unfavourable conditions for species with freeliving larvae. An increasing proportion of crustaceans in the diet of Arctic seabirds would result in a higher infection intensity of cestodes and acanthocephalans, and may also promote the infection of seabirds with non-specific helminths. In this way, the latter may find favourable conditions for colonization of new hosts. Climate changes may alter the composition of the helminth fauna, their infection levels in hosts and ways of transmission in coastal communities. Immigration of boreal invertebrates and fish into Arctic seas may allow the circulation of helminths using them as intermediate hosts. Changing migratory routes of animals would alter the distribution of their parasites, facilitating, in particular, their trans-Arctic transfer. Prolongation of the seasonal 'transmission window' may increase the parasitic load on host populations. Changes in Arctic marine food webs would have an overriding influence on the helminths' circulation. This process may be influenced by the predicted decreased of salinity in Arctic seas, increased storm activity, coastal erosion, ocean acidification, decline of Arctic ice, etc. Greater parasitological research efforts are needed to assess the influence of factors related to Arctic climate change on the transmission of helminths.

show abstract

Changes in the decapod fauna of an Arctic fjord during the last 100 years (1908–2007)

Cited by 36 publications

References 31 publications

Recent distribution of Echinodermata species in Spitsbergen coastal waters

Recent distribution of Echinodermata species in Spitsbergen coastal waters

Do bioturbation and consumption affect coastal Arctic marine soft-bottom communities?

Patterns and processes influencing helminth parasites of Arctic coastal communities during climate change

Contact Info

Product

Resources

About