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The benthic fauna of different soft substrata in the Pagassitikos Gulf (Greece)
Bogdanos, C.; Satsmadjis, J. (1985). The benthic fauna of different soft substrata in the Pagassitikos Gulf (Greece). Thalassografika/Thalassographica 8: 43-69
In: Θαλασσογραφικα = Thalassographica. National Centre for Marine Research: Athinai. ISSN 0250-3298
Peer reviewed article  

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  • Bogdanos, C.
  • Satsmadjis, J.

Abstract
    The macrozoobenthos data of the Greek gulf of Pagassitikos were exhaustively analysed with a view to depicting accurately the biocoenose of the entire range of soft substrata. These were assigned a coarseness index, or "sand equivalent", s', estimated from the percentages of sand and silt. Each species observed in the region displayed a relationship between its abundance species observed in the region displayed a relationship between its abundance and s'. All such equations were grouped into six types, having as chief representatives, in increasing order of preference for mud, Notomastus latericeus, Onchnesoma steenstrupii, Tharyx dorsobranchialis, Thyasira flexuosa, Tauberia gracilis and Callianassa stebbingi. A mathematical technique permitted the identification of the type to which a species belonged, even in the common instance of scanty data. It thus became possible to determine in the most reliable manner the structure of the benthic communities as a function of the coarseness of their habitat. The method, enabling most accurate comparisons of distant areas, should help assessing the effects of other parameters.

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