Long-term fluctuations of soft-bottom intertidal community structure affected by ice cover at two small sea bights in the Chupa Inlet (Kandalaksha Bay) of the White Sea

Наумов, А. Д.

doi:10.1007/s10750-012-1339-y

Cited by 23 publications

(14 citation statements)

References 12 publications

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“…1). The meadows were also recorded 100 to 200 yr ago, suggesting that the persistence of these northern populations is not limited by the long, cold winters, where eelgrass in some years lives under a cover of sea ice for up to 7 mo (Jensen & Rasch 2013), as has also been observed in other studies (McRoy 1969, Lalumière et al 1994, Naumov 2013). By contrast, the small, sparse eelgrass population in the colder, but usually ice-free waters of Kobbefjord, was observed for the first time in this study.…”

Section: The Northernmost Eelgrass Populationssupporting

confidence: 72%

Eelgrass Zostera marina in subarctic Greenland: dense meadows with slow biomass turnover in cold waters

Olesen¹,

Krause‐Jensen²,

Marbà³

et al. 2015

Mar. Ecol. Prog. Ser.

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Section: The Northernmost Eelgrass Populationssupporting

confidence: 72%

Eelgrass Zostera marina in subarctic Greenland: dense meadows with slow biomass turnover in cold waters

Olesen¹,

Krause‐Jensen²,

Marbà³

et al. 2015

Mar. Ecol. Prog. Ser.

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“…The long-term maximum mean density of M. balthica (>1+ age) was observed in 1999, representing the unusually successful recruitment after the postlarvae settlement in the summer of 1998. This particular year was characterized by a relatively cool winter (but see Naumov, 2013 for a description of the abnormally early ice melting), warm summer and warm following winter (Figure 2). An unusual increase in density of acorn barnacles Semibalanus balanoides was observed in 1998 due to intense settlement of juveniles, but no correlation was observed between the recruit density and adult abundance during the next year (Marfenin et al , 2013).…”

Section: Discussionmentioning

confidence: 99%

“…Kandalaksha Bay forms the north-west portion of the White Sea. It is the warmest part of the sea with the annual mean surface water temperature of 4°C at the apex, seasonal mean amplitude of about 20°C (Filatov et al , 2007) and average tidal amplitude of about 2 m. The most typical species of intertidal fauna at the White Sea sandflats are baltic clams Macoma balthica [recently Limecola balthica has become accepted as the valid scientific name (Sartori, 2016), but here we use Macoma balthica as the commonly used synonym], lugworms Arenicola marina , sludge-worms Tubificoides benedii and mudsnails Peringia ulvae (Naumov, 2013).…”

Section: Methodsmentioning

confidence: 99%

“…The dynamics of the White Sea intertidal communities have been studied for almost 30 years (Sergievsky et al , 1997; Sukhotin & Berger, 2013). These studies proposed several causes to describe the changes in species abundances: species interactions (Khalaman, 2013; Naumov et al , 2014), rare weather events (Naumov, 2013) and cyclic character in population recruitment (Khaitov, 2013), although the relationship between abundance and climate oscillations were not discussed.…”

Section: Introductionmentioning

confidence: 99%

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Trends and drivers of Macoma balthica L. dynamics in Kandalaksha Bay, the White Sea

Genelt-Yanovskiy

Aristov

Poloskin³

et al. 2017

J. Mar. Biol. Ass.

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Long-term population dynamics of marine invertebrates can be shaped by environmental conditions as well as biotic factors, including predation, diseases, interspecific or intraspecific competition. Towards the northern edge of species ranges the role of biotic interactions gradually decreases while the impact of climate oscillations becomes more important. This study examined the long-term changes in abundance, individual growth rates and shell shape characteristics of Macoma balthica, one of the dominant species in White Sea soft-bottom intertidal communities. To test the role of predators in changes in clam abundance, we examined the number of moonsnails Amauropsis islandica. Macoma balthica exhibited spatially synchronous population dynamics at six sites in Kandalaksha Bay, where densities of clams varied between 140 and 8500 ind. m−2 during the 21-year period of observations. Statistical modelling using generalized additive models (GAM) shows that a combination of mild winter and warm summer led to an increase in M. balthica density the following year. Predation by A. islandica had no impact on changes in M. balthica density. Growth rates of M. balthica were higher during a cool decade, but clams that lived in a warmer period were characterized by more globose shells. Our results suggest that the climate oscillations can be regarded as the key factor causing the shift in abundance of M. balthica in the White Sea during the last two decades via recruitment and survival.

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“…The tides are semi-diurnal with a range of ∼1.8 m (Korsun et al, 2014). The small inlets of Kandalaksha Bay are usually covered by thick seasonal ice (up to 40-50 cm) from the beginning of November until late May (Naumov, 2013). We collected and counted egg collars from two locations: Youzhnaya (67°00 ′ N 32°34 ′ E) and Kluschikha (66°18 ′ N 33°46 ′ E) inlets.…”

Section: Study Areamentioning

confidence: 99%

Moonsnail hatching success, development timing and early feeding behaviour at the high-latitude White Sea

2020

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As predators, Naticidae (Gastropoda) can shape marine soft-sediment communities. Thus understanding of the reproductive biology and development of moonsnails is of great importance. Most moonsnails lay large egg masses, known as sand or egg collars, which are freely distributed on sand or muddy sediments. Here we report upon the abundance of egg collars of two naticid species, Amauropsis islandica and Euspira pallida, from the high-latitude White Sea, as well as describe the morphology of egg collars and hatching success, with a brief description of juvenile feeding in A. islandica. While in the subtidal zone, the egg collars of E. pallida were 10 times more abundant than of A. islandica, the egg collars of the latter species were the only ones that occur in the intertidal zone. The morphology of an egg collar of E. pallida differed from the literature descriptions by having a plicated basal margin. The number of egg capsules inside the collars was twice as high in A. islandica compared with E. pallida, but they were smaller. Amauropsis islandica hatchlings were larger and hatching success was more than twice that in E. pallida. We suggest that these characteristics promote the high abundance of A. islandica populations observed on some tidal flats of the White Sea. Surprisingly, A. islandica juveniles could perform non-drilling feeding in the first month after hatching. This study fills the gap in the knowledge of naticid reproductive biology at high latitudes.

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Long-term fluctuations of soft-bottom intertidal community structure affected by ice cover at two small sea bights in the Chupa Inlet (Kandalaksha Bay) of the White Sea

Cited by 23 publications

References 12 publications

Eelgrass Zostera marina in subarctic Greenland: dense meadows with slow biomass turnover in cold waters

Eelgrass Zostera marina in subarctic Greenland: dense meadows with slow biomass turnover in cold waters

Trends and drivers of Macoma balthica L. dynamics in Kandalaksha Bay, the White Sea

Moonsnail hatching success, development timing and early feeding behaviour at the high-latitude White Sea

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