| Autor: |
مهدی قدرتیشجاعی, علی طاهریمیرقائد, ملیکا مشهدیفراهانی, نسترن دلفان, مریم ویجت |
| Předmět: |
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| Zdroj: |
Journal of Fisheries Science & Technology; 2019, Vol. 8 Issue 3, p175-181, 7p |
| Abstrakt: |
Aims: The aim of the current study was to determine the role of Avicennia marina’s primary productions as well as other food sources in the diet of Thryssa setirostris in Hara bioshphere reserve mangrove ecosystem using stable isotopes of carbon (δ13C) and nitrogen (δ15N). Materials & Methods: Primary food sources including fresh and senescent leaves of Avicennia marina, microphytobenthos, particulate organic matter, and sediment organic matter were collected for further stable isotope analysis. For this purpose, fishes were collected and the muscle tissue (boneless and skinned, 5g) was removed from the dorsum of fish. Findings: Significant differences were found between carbon and nitrogen isotopes of different food sources (p<0.05). Although, this was not significant for green and senescent leaves (p>0.05). The average values of carbon and nitrogen isotopic ratios of T. setirostris were 15.93 and 13.01‰, respectively. The SIMMR model showed that the contribution of fresh and senescent leaves in the diet of T. setirostris was 10 and 15%, respectively. Conclusion: The results of the present study depicted that the role of primary production of mangrove plants in the arid climate of the Persian Gulf is limited in feeding of T. setirostris or the organisms that this fish feed them. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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