Influency of granulometric over adaptation and support of meiofauna on sandy beach at Olinda's Isthmus-PE

T. N. C. BEZERRA, B. GENEVOIS, V. G. FONSÊCA-GENEVOIS

Abstract


The meiofauna from Isthmus of Olinda (Lat. 8° 2' 24" S; Long. 34° 51' 48"W) was collected from November/1988 to October/1989, in seven transects, with distance on 300m between each other, and stations at supratidal, intertidal and subtidal level. The granulometric analysis showed a sediment with predominance of medium sands. Accordind to effective diameter, it was evident that inside medium sand class, the variance of grain size demanded a subdivision to verify the effect of granulometry in animais distribution. So, the fraction medium sand was subdivided on: higer, intermediate and smaller. With X² test was showed that Nematoda was indifferent to this granulometric variance, while Copepoda Harpacticoida and Ostracoda suffered influence by granulometry probably because they seem more adapted to swimming.


Keywords


meiofauna, granulometry.

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ISSN 2177-6199