Synchronous annual recruitment variation in barnacles and ascidians in the White Sea shallow subtidal 1999–2010

Yakovis, Eugeniy; Artemieva, Anna; Fokín, Mikhaïl; Varfolomeeva, Marina A.; Shunatova, Natalia

doi:10.1007/s10750-012-1340-5

Cited by 17 publications

(15 citation statements)

References 25 publications

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“…While spatial distribution of barnacles themselves in tropical and temperate waters is often controlled by predators (Foster, ), this does not apparently happen in the White Sea subtidal. Although principal sources of barnacle mortality here are not completely clear (Varfolomeeva, Artemieva, Shunatova, & Yakovis, ), their abundance seems rather affected by hard substrate availability (Yakovis, Artemieva, Fokin, Varfolomeeva, & Shunatova, ) than controlled by relatively scarce and ineffective consumers (Yakovis & Artemieva, ). Weak predation pressure at 65° N is consistent with biotic interaction hypothesis (BIH) predicting low importance of biotic interactions (i.e., predation) in subpolar and polar regions (Freestone, Osman, Ruiz, & Torchin, ; Schemske, Mittelbach, Cornell, Sobel, & Roy, ).…”

Section: Introductionmentioning

confidence: 81%

“…Recruitment rate of barnacles at the study site is highly variable between the years (Yakovis et al, ). Particularly in 2015–2016, barnacle recruitment was relatively poor, contributing on average 0.5 ± 0.5% to EBW, and the resulting per block EBW in the end of the experiment was similar across Treatment levels ( p = .433, F 4,26 = 0.984, n = 31, one‐way ANOVA, units pooled by block).…”

Section: Methodsmentioning

confidence: 99%

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Epibenthic predators control mobile macrofauna associated with a foundation species in a subarctic subtidal community

Yakovis

Artemieva

2019

Ecology and Evolution

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Foundation species (FS) are strong facilitators providing habitat for numerous dependent organisms. The communities shaped by FS are commonly structured by interplay of facilitation and consumer control. Predators or grazers often indirectly determine community structure eliminating either FS or their principal competitors. Alternatively, they can prey on the dependent taxa directly, which is generally buffered by FS via forming complex habitats with numerous refuges. The latter case has been never investigated at high latitudes, where consumer control is widely considered weak. We manipulated the presence of common epibenthic crustacean predators to assess their effect on mobile macrofauna of the clusters developed by a FS (barnacle Balanus crenatus and its empty tests) in the White Sea shallow subtidal (65° N). While predation pressure on the FS itself here is low, the direct effects of a spider crab Hyas araneus and a shrimp Spirontocaris phippsii on the associated assemblages were unexpectedly strong. Removing the predators did not change species diversity, but tripled total abundance and altered multivariate community structure specifically increasing the numbers of amphipods, isopods (only affected by shrimp), and bivalves. Consumer control in the communities shaped by FS may not strictly follow the latitudinal predation gradient rule.

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Section: Introductionmentioning

confidence: 81%

Section: Methodsmentioning

confidence: 99%

Epibenthic predators control mobile macrofauna associated with a foundation species in a subarctic subtidal community

Yakovis

Artemieva

2019

Ecology and Evolution

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“…High inter-annual variations in recruitment success are generally observed in multiyear-living soft-bottom invertebrates of higher latitudes (Varfolomeeva and Naumov 2013). Although the reason for this variability is often unknown, especially post-settlement factors such as winter mortality of juveniles seem to play a major role (Maximovich and Guerassimova 2003;Strasser et al 2003;Yakovis et al 2013). …”

Section: Effects and Occurrence Of Bioturbatorsmentioning

confidence: 99%

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

et al. 2015

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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.

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“…The released icebergs increase the risk of ice scouring while melt water is likely to impact fjord circulations, surface-water temperature and salinity (Mortensen et al 2011(Mortensen et al , 2014. These physical parameters are often suggested as important drivers of benthic recruitment in coastal areas (Wiencke et al 2004;Fredersdorf et al 2009;Woodson et al 2012;Yakovis et al Electronic supplementary material The online version of this article (https ://doi.org/10.1007/s0030 0-018-2390-6) contains supplementary material, which is available to authorized users. 2013) which can influence benthic productivity.…”

Section: Introductionmentioning

confidence: 99%

Subtidal benthic recruitment in a sub-Arctic glacial fjord system: Temporal and spatial variability and potential drivers

2018

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Increasing glacial discharge may influence future recruitment patterns and growth rates of marine benthos in glacial fjords as changes in surface-water temperature and salinity as well as an increase in ice-scouring events. We deployed settling plates at three spatial and temporal scales in a sub-Arctic glacial fjord system to quantify spatial and temporal variation in the recruitment rates and early growth of subtidal marine benthos, and to determine potential drivers of recruitment. We found significant spatial variation in recruitment of benthos (flora and fauna) at both the small (20 m) and large (> 30 km) scale, indicating that both abiotic and biotic factors may be important. We observed that substrate modification by bushy macroalgae facilitated Mytilus spp. settlement, yet limited Semibalanus balanoides recruitment, underlining that timing in settlement of different species is important in structuring benthic communities. Spatial variation in physical parameters, such as temperature and salinity, likely affected growth and recruitment patterns of benthos (S. balanoides). Finally, we found large spatial and temporal variation in kelp recruitment varying from none to 5866 ind. m −2 , with an annual production of more than 6000 g dw m −2 year −1 . This large growth potential of kelp suggests recruitment as a bottleneck in kelp population dynamics. Conclusively, variation in sub-Arctic benthic recruitment and growth patterns may respond to changes in temperature and salinity, yet further effort is needed to elucidate potential drivers of benthic recruitment in a fast changing Arctic environment.

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Synchronous annual recruitment variation in barnacles and ascidians in the White Sea shallow subtidal 1999–2010

Cited by 17 publications

References 25 publications

Epibenthic predators control mobile macrofauna associated with a foundation species in a subarctic subtidal community

Epibenthic predators control mobile macrofauna associated with a foundation species in a subarctic subtidal community

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

Subtidal benthic recruitment in a sub-Arctic glacial fjord system: Temporal and spatial variability and potential drivers

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