Brackish-water submergence of the common periwinkle,Littorina littorea, and its digenean parasites in the Baltic Sea and in the Kattegat
| Autor: | G. Lauckner |
|---|---|
| Rok vydání: | 1984 |
| Předmět: |
Larva
biology Brackish water Common periwinkle Ecology fungi Intertidal zone Littorina Aquatic Science Oceanography biology.organism_classification medicine.disease_cause Population density Salinity parasitic diseases Infestation medicine General Earth and Planetary Sciences General Environmental Science |
| Zdroj: | Helgoländer Meeresuntersuchungen. 37:177-184 |
| ISSN: | 1438-3888 0174-3597 |
| DOI: | 10.1007/bf01989302 |
| Popis: | North Sea and Baltic Sea populations ofLittorina littorea differ with respect to their vertical distribution. In the North SeaL. littorea is strictly intertidal while in the Baltic Sea maximum population densities occur in the sublittoral. Levels of infestation with larval digenetic trematodes diminish qualitatively (number of species recorded) and quantitatively (number of hosts infested) with decreasing salinity. Both the host and two parasite species —Cryptocotyle lingua andMicrophallus pygmaeus — display ‘brackish-water submergence’ under conditions of reduced surface salinity. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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