Accession Number : AD0672038

Title :   RESEARCH ON BENTHIC FAUNA OF SOUTHERN ADRIATIC ITALIAN COAST.

Descriptive Note : Final scientific rept. 1 Apr 67-31 Mar 68,

Corporate Author : BARI UNIV (ITALY) INST OF ZOOLOGY AND COMPARATIVE ANATOMY

Personal Author(s) : Sara,Michele

Report Date : 30 APR 1968

Pagination or Media Count : 61

Abstract : A coralligenous bank populated by a very rich benthic fauna has been discovered along the Adriatic coast of Puglia (Italy), occupying an area estimated at 500 square km, and representing the most continuous and important structure of this kind ever recorded. It forms a belt about 1 mile wide within the isobaths of 10 m and 30 m (average) and reaches the thickness of 2.5 m above the surrounding sediment. The study of these coralligenous formations indicate that the maximum of light intensity suitable for their development is much higher than previously recorded; it also suggests that they do not originate from concretioning of loose material on a soft bottom, but have their base on hard bottom. The structure of the coralligenous conglomerate and of the main elements giving origin to it are described. The meaning of the term 'coralligenous' is discussed in regard to its origin and its use by the authors. The elements constituting the coralligenous population are not exclusive of it, but may be found also in other biotopes: lists including 360 species are given and Porifera are discussed in particular detail. Quantitative data obtained through the analysis of the abundance of some species at different stations and depths are recorded. (Author)

Descriptors :   (*INVERTEBRATES, OCEAN BOTTOM), (*MARINE BIOLOGY, ADRIATIC SEA), OCEAN BOTTOM SAMPLING, COASTAL REGIONS, TEMPERATURE, ILLUMINATION, SUBSTRATES, SEDIMENTATION, NEMATODA, ANNELIDA, MOLLUSCA, ECHINODERMATA, SPONGES, DISTRIBUTION, ITALY

Subject Categories : Biological Oceanography
      Physical and Dynamic Oceanography

Distribution Statement : APPROVED FOR PUBLIC RELEASE