Categories
vol-32ECOLOGY AND BIOLOGY OF THE BENTHIC BIVALVE
AMIANTIS UMBONELLA (LAMARCK) IN KHOR
AL-ADAID, QATAR
JASSIM A. AL-KHAYAT AND MOHAMMED. S. AL-MOHANNADI
Chemical and Earth Science Department
Marine Sciences Division, College of Science,
University of Qatar, Doha P. O. Box 2713, Qatar
Keyword: Ecology-population dynamic, clam Amiantis umbonella, Qatar.
ABSTRACT
Monthly investigations on a population of Amiantis umbonella were conducted from
September 1999 to August 2000 at Khor Al-Adaid south of Qatar. A total of 29 fauna and
flora were recorded associated with Amiantis umbonella in the study area. These species
included 6 algae, 2 seagrasses, 9 gastropoda, 9 bivalvea and 3 crustacea. The minimum
water temperature was recorded during January (10°C) while the maximum one was
observed during August and September (35-36°C). Salinity and dissolved oxygen are
positively correlated with temperature. The population density, biomass and growth
increment were measured and compared with some physic-chemical parameters.
Relationships between shell length, total weight and flesh weight of clam revealed that the
growth of these features is isometric.
