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Paper Information

Journal:   IRANIAN SCIENTIFIC FISHERIES JOURNAL   SUMMER 2010 , Volume 19 , Number 2; Page(s) 67 To 76.
 
Paper: 

REPRODUCTION AND FEEDING BIOLOGY OF MADAGASCAR MEAGER (ARGYROSOMUS HOLOLEPIDOTUS) FROM KHUZESTAN COASTAL WATERS

 
 
Author(s):  SHEKARI M., SAVARI A., GHOFLEH MARAMAZI J., ESKANDARI GH., RONAGH M.T., HASHEMI A., DARVISH BASTAMI K.*, MSINAIE M., KASHI M.T.
 
* IRANIAN NATIONAL INSTITUTE FOR OCEANOGRAPHY (INCO), TEHRAN, IRAN
 
Abstract: 
Biological attributes of Madagascar Meager (Argyrosomus hololepidotus) was studied from October 2008 to September 2009 in coastal waters of Khuzestan province. A v erage maximum length was 128.4±7.50 in October and average minimum length was 104.86±12.47 in May. The maximum weight was 27500g, the minimum weight was 5700g and mean weight for males and females were 15.222±4.40 and 16.942±5.09, respectively.
Reproductive studies showed that peak maturity season occurred in July. The length weight relationship were calculated as W=0.042L2.70 for males and W=0.06L2.61 for females.
The male-female sex ratio was calculated as 1: 1.07 and chi-square analysis showed no significant difference (P>0.05) between the two sexes. The average absolute and relative fecundity were estimated to be 4045
±37265 054and 179.19±50.41, respectively Madagascar Meager is carnivore and we found the diet of the species consisted of fish (75%), crustaceans (20%) and mollusks (5%). Analysis of monthly variation in the condition factor (Ks) indicated a fluctuation throughout the year, with a high level during May. Vacuity index indicated a higher feeding rate in males compared to females.
We also found that the species continues feeding in the spawning season.
 
Keyword(s): ARGYROSOMUS HOLOLEPIDOTUS, BIOLOGICAL ATTRIBUTES, PERSIAN GULF
 
References: 
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