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Bionomy of Macrobenthic Molluscs in Evros Delta (North Aegean Sea)

✍ Scribed by T. Kevrekidis; N. Gouvis; A. Koukouras

Publisher: John Wiley and Sons
Year: 1996
Tongue: English
Weight: 863 KB
Volume: 81
Category: Article
ISSN: 1434-2944
DOI: 10.1002/iroh.19960810314

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✦ Synopsis

The composition and distribution of the macrobenthic molluscs in Evros Delta (North Aegean Sea) were investigated by quantitative sampling. The molluscan distribution shows a zonation mainly related to the degree of "confinement". Based on similarity in distribution among stations, 2 groups of species were distinguished. One group includes marine species (Tellinn renuis, Birrium reticdatum) found only in coastal stations and the second group is typical of estuarine species (Hydrubia mm. Abra owra and Cerustuderma glaucrtm) distributed in almost all stations. Spatial fluctuations of the 3 estuarine species reflect their preferences in the various parameters ("confinement", salinity, grain size and organic matter of sediment). The most isolated stations support the highest values of total mollusc abundance and biomass.

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