| Autor: |
Shekari, M., Savari, A., Ghofleh Maramazi, J., Eskandari, G., Ronagh, M.T., Hashemi, A.R., Darvish Bastami, K., Sinaie, M., Kashi, M.T. |
| Jazyk: |
perština |
| Rok vydání: |
2010 |
| Předmět: |
|
| Zdroj: |
Iranian Fisheries Science Research Institute |
| Popis: |
Biological attributes of Madagascar Meager (Argyrosomus hololepidotus) was studied from October 2008 to September 2009 in coastal waters of Khuzestan province. Average 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=0.042L 2 70 for males and W=0.06L2 61for 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 4054045±37265 and 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 (CF) 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. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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