Document Details

Document Type : Article In Journal 
Document Title :
Ecological Behaviour and Biology of the Beach Clam Donax faba (Gmelin) from the Red Sea
من البحر الاحمر Donax faba (Gmelin) السلوك البيئي وبيولوجية المحار الوتدي
 
Subject : Zoology 
Document Language : English 
Abstract : The distribution of wedge clam Donax faba (Gmelin) in the Red Sea and the offshore islands is restricted to sheltered sandy beaches between tide marks. The present investigation has shown that Donax faba does not exhibit a tidal or semilunar migratory pattern as most members of this genus but rather a seasonal migratory pattern, which is related to the seasonal changes in the sea level. A peak density occurred in November with 296 m–2 and the lowest in January with 30 m–2. Growth rate of wedge clams exhibits different seasonal patterns of growth. The greatest increase in growth rate took place in summer. It is evident from this study that Donax faba has a prolonged breeding period with two different peaks of spawning; the small peak taking place in June and the large one in November and December. These two reproductive cycles corresponded to the phytoplankton peak which occurred at the same period. 
ISSN : 1012-1319 
Journal Name : Science Journal 
Volume : 10 
Issue Number : 1 
Publishing Year : 1418 AH
1998 AD 
Number Of Pages : 25 
Article Type : Article 
Added Date : Sunday, October 11, 2009 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
علي عشقيALI A. ESHKYResearcher  

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