TY - JOUR

T1 - Effect of tidal level on abundance of symbionts in the White Sea blue mussel

AU - Krapivin, Vladimir

AU - Bagrov, Sergey V.

AU - Varfolomeeva, Marina A.

PY - 2018/9/10

Y1 - 2018/9/10

N2 - In the White Sea, the blue mussel Mytilus edulis occupies a wide range of biotopes and is associated with numerous symbiotic organisms. At some sites, mussel cover spreads continuously from the intertidal to the subtidal zone. We checked whether the patterns of infection by different associated organisms differed among the upper subtidal, zero-depth and lower intertidal zones at 3 sites in the Kandalaksha Gulf and the Onega Bay of the White Sea. Organisms belonging to 13 taxa were found in mantle cavities and tissues of blue mussels. Parasitic green algae, a sporocyst and metacercariae of 5 species of digenean trematodes occupied mussel tissues; commensal ciliates, rhabdocoelans and some free-living invertebrates were found in mantle cavities. Quantitative composition of symbiotic communities of mussels was not the same at different tidal levels: Urastoma cyprinae (commensal rhabdocoelans) were more abundant in the subtidal and zero-depth zones, while encysted metacercariae of Renicola roscovita and Himasthla sp. were more abundant at the zero-depth and intertidal zones. We suggested several hypotheses to explain this heterogeneity.

AB - In the White Sea, the blue mussel Mytilus edulis occupies a wide range of biotopes and is associated with numerous symbiotic organisms. At some sites, mussel cover spreads continuously from the intertidal to the subtidal zone. We checked whether the patterns of infection by different associated organisms differed among the upper subtidal, zero-depth and lower intertidal zones at 3 sites in the Kandalaksha Gulf and the Onega Bay of the White Sea. Organisms belonging to 13 taxa were found in mantle cavities and tissues of blue mussels. Parasitic green algae, a sporocyst and metacercariae of 5 species of digenean trematodes occupied mussel tissues; commensal ciliates, rhabdocoelans and some free-living invertebrates were found in mantle cavities. Quantitative composition of symbiotic communities of mussels was not the same at different tidal levels: Urastoma cyprinae (commensal rhabdocoelans) were more abundant in the subtidal and zero-depth zones, while encysted metacercariae of Renicola roscovita and Himasthla sp. were more abundant at the zero-depth and intertidal zones. We suggested several hypotheses to explain this heterogeneity.

KW - Mytilus edulis

KW - Symbionts

KW - Vertical distribution

KW - Blue mussel

KW - Digenea

KW - Urastoma cyprinae

KW - SNAIL INTERMEDIATE HOSTS

KW - MYTILUS-EDULIS

KW - SPATIAL HETEROGENEITY

KW - INTERTIDAL GASTROPODS

KW - TREMATODE LARVAE

KW - WEST-COAST

KW - PARASITE

KW - INFECTION

KW - POLLUTION

KW - GALLOPROVINCIALIS

U2 - 10.3354/dao03259

DO - 10.3354/dao03259

M3 - статья

VL - 130

SP - 131

EP - 144

JO - Diseases of Aquatic Organisms

JF - Diseases of Aquatic Organisms

SN - 0177-5103

IS - 2

ER -