Moon snails Amauropsis islandica can shape the population of Baltic clams Limecola balthica by size-selective predation in the high-latitude White Sea

Aristov, Dmitriy; Varfolomeeva, Marina A.

doi:10.1007/s00300-019-02597-y

Cited by 7 publications

(9 citation statements)

References 56 publications

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“…We suggest that A. islandica females start to produce egg collars under the ice, so there are no restrictions for the occurrence of this species in the intertidal all year round. The size structure of A. islandica snails in the intertidal confirms this suggestion (Aristov & Varfolomeeva, 2019). The simple method of counting the conspicuous egg collars along a transect using GPS positioning has accuracy limitations, but we feel it can still be used for a rough estimation of egg collar abundance.…”

Section: Discussionsupporting

confidence: 75%

“…In this study we did not find any P. ulvae drilled by A. islandica juveniles probably because juvenile predators were too small to wrest down a gastropod of equal or larger size (Figure 3). The largest borehole (which is correlated to the naticid size (Aristov & Varfolomeeva, 2019)) we found on L. balthica clams was 200 μm, whereas the smallest drillings on P. ulvae were 300 μm in diameter (D. Aristov, pers. obs.).…”

Section: Discussionmentioning

confidence: 90%

“…We suggest that in the White Sea the high density of eggs in the egg collar and high hatching success allow A. islandica to colonize the tidal flats protected by boulders from ice ploughing. In such habitats the abundance of A. islandica can be high, so this predator could affect the population structure of its prey, the Limecola balthica clams (Aristov & Varfolomeeva, 2019). Although uncovering specific mechanisms of early juvenile feeding in these naticids will require suitably designed experiments, the evidence of non-drilling feeding of naticid juveniles that we provided could enrich our knowledge of feeding mode switching during ontogeny as has been shown for other gastropod species (Montiel et al ., 2005).…”

Section: Resultsmentioning

confidence: 99%

“…obs. ; 10.8 ± 0.8 specimens m −2 in intertidal, Aristov & Varfolomeeva, 2019). Second, the density of adult A. islandica in the Youzhnaya intertidal was higher than the abundance of other naticid species in other localities (Aristov & Granovitch, 2011).…”

Section: Discussionmentioning

confidence: 96%

“…Adult naticids are generally regarded as drilling predators (see, for example, Carriker, 1981; Kabat, 1990) which sometimes show ontogenetic shift of diet and size-preferences (Clements & Rawlings, 2014; Aristov & Varfolomeeva, 2019). Nonetheless, there is evidence that adult moonsnails can exploit non-molluscan food sources or consume some prey species without drilling (Thorson, 1935; Perry, 1940; Jensen, 1951; Ansell, 1961; Paine, 1963; Kabat, 1990; Huelsken, 2011; Visaggi et al ., 2013).…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Discussionsupporting

confidence: 75%

Section: Discussionmentioning

confidence: 90%

Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

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

2020

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Octopuses and drilling snails as the main suspects of predation traces on shelled molluscs in West Antarctica

2021

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Drilling predation on Early Jurassic bivalves and behavioral patterns of the presumed gastropod predator—evidence from Pliensbachian soft-bottom deposits of northern Germany

Karapunar¹,

Werner²,

Simonsen³

et al. 2023

Paleobiology

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Drilling predation is a common reason for mortality of benthic mollusks but did not become common until the late Mesozoic. The scarcity of drill holes in the early Mesozoic fossil record limits our understanding of the evolution of drilling behavior and its role on shaping early Mesozoic marine communities. Here, we use drilling traces on several bivalve taxa from the Lower Jurassic (Pliensbachian) marine soft-bottom deposits in northern Germany to explore behavioral patterns of the predator (e.g., site selectivity, change in site-selective behavior with age). Although none of the known drilling gastropod groups existed in the Pliensbachian, including the studied localities, the drill-hole morphology suggests that the predator was probably a gastropod. The ecology and identity of the target prey changes from a diverse array of epifaunal to infaunal taxa in older deposits to focus on a single, large, deep infaunal taxon, Gresslya intermedia, in younger deposits, suggesting a potential trend in prey selectivity over time. Spatial point pattern analysis of traces (SPPAT) reveals an aggregated pattern of drill holes on Gresslya, suggesting strong selectivity in drill-hole location. Drilling on a single large infaunal taxon and site selectivity are common patterns also inferred previously from the drilled deep infaunal Eothyasira from the Pliensbachian of southern Germany. In addition to the scarcity of predators, the highly specialized behavior of the early drilling predators, including strong prey selectivity in terms of prey identity and life habit, can partly explain the rarity of the early Mesozoic drill holes.

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Moon snails Amauropsis islandica can shape the population of Baltic clams Limecola balthica by size-selective predation in the high-latitude White Sea

Cited by 7 publications

References 56 publications

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

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

Octopuses and drilling snails as the main suspects of predation traces on shelled molluscs in West Antarctica

Drilling predation on Early Jurassic bivalves and behavioral patterns of the presumed gastropod predator—evidence from Pliensbachian soft-bottom deposits of northern Germany

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