العنوان باللغة الأجنبية:
A Study of Food Spectrum Chara Cteristics and Some Biological Indicators of Squirrelfish Sargocentron Rubrum (Forsskal. 1775) in Syrian Marine Waters.
لمحة عن المقال باللغة الأجنبية:
This research was done during the period 2002-2003 on /435/ of Squirrelfish individuals (Sargocentron rubrum), caught in the Syrian Marine waters. The specific and weight structures of food elements in food spectrum of the fish were studied. In addition, some biological factors (condition factor, general fullness factor and frequency of occurrence, length, weight and sex structures of fish) were also analized.
It had been revealed that the specific structure of food elements of the Squirrelfish, consists of more than twenty food elements belonging to four major taxonomic groups (Crustacea, Mollusca, Annelida and Fishes). The crustacean was the first among fish to rely on and represented by (17) species, especially Decapods (12 species; especially, the Palaemon elegans). The Isopods was in the second level, where it was represented by two species. The Polychaeta (especially Eulalia viridis) was in the third level followed by the Mollusks (represented by Chiton squamosus from the Polyplacophora).
The young fish individuals were in the forth level of food spectrum (represented by Gobius sp, Sparisoma credence and Panturichthys fowleri).
There were not any big differences in specific structure of food spectrum with regards to the length or sex differences among the studied fish. Similarly no big differences were observed in regards to other factors such as condition factor or general fullness factor.