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The macrozoobenthos of an Aegean embayment
Bogdanos, C.; Satsmadjis, J. (1983). The macrozoobenthos of an Aegean embayment. Thalassographica 6: 77-105
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 of the relatively uninterfered and semi-inclosed Greek gulf of Pagassitikos was collected during six cruises, at a total of 39 locations, from August 1975 to December 1976. The observed species were listed in phylogenetic order, along with their abundances. Most of them belonged to the groups of Polychaeta (56%), Crustacea (16%), Mollusca (14%) and Echinoderma (6%). The most abundant species were by far Onchnesoma steenstrupii, Tharyx dorsobranchialis, Paraonis gracilis gracilis, Callianassa stebbingi and Thiasyra flexuosa. The number of species, g, and that of individuals, i, in a 0.1 m2 area were a function of Satsmadjis's index of coarseness s' = s + t/(0.2s + 5), where s and t represent the percentages of sand and silt in the substrate. For the groups of stations A, B and C, with s' means of 49, 15 and 10, g was 34, 14 and JO and i 90, 29 and 17. Depth, h, had also its own effect, but a negative one, on g and i, presumably because it tends to lower the dissolved oxygen level. The nutrients concentrations in the bottom waters had a positive influence on benthos. They varied substantially from cruise to cruise independent of season.

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