Seasonal species composition and distribution of barnacle larvae in Avacha Inlet (Kamchatka) |
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Authors: | Korn, Olga M. Kulikova, Valentina A. |
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Affiliation: | Laboratory of Embryology, Institute of Marine Biology, Far East Branch, Russian Academy of Sciences Vladivostok, 690041, Russia |
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Abstract: | The annual dynamics of the numbers and distribution of barnaclelarvae in Avacha Inlet were studied. Planktonic cirripede larvaewere found in the area studied from late March at a temperatureof 10°C until October. The highest densityof 18 000 m3 was observed in mid-April. Balanus crenatusand Semibalanus cariosus were the dominant species, Chthamalusdalli and Balanus balanus larvae being less abundant. Naupliardensity was maximal at 05 m and decreased with depth.Maximum densities of B.crenatus larvae were observed in RakovayaBay, where there are many ships and a seawater-cooled powerstation. Most nauplii of the intertidal barnacle S.cariosus,which prefers wave-exposed open coast, were taken in the AvachaInlet narrows Settling on artificial substrata was most intensivefrom late May to early June |
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