A SURVEY ON FEEDING BEHAVIOUR OF HILSA SHAD (TENUALOSA ILISHA) IN THE NORTH OF PERSIAN GULF(BUSHEHR COASTAL WATERS)

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NASRI TAJAN M.; KEYVAN AMIN; SOLTANI MAHDI; VALINASAB T.; VOSOUGHI GH.H.

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Journal: NEW TECHNOLOGIES IN AQUACULTURE DEVELOPMENT (JOURNAL OF FISHERIES) Year:2008 | Volume:2 | Issue:3 Page(s): 43-50

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Title

A SURVEY ON FEEDING BEHAVIOUR OF HILSA SHAD (TENUALOSA ILISHA) IN THE NORTH OF PERSIAN GULF(BUSHEHR COASTAL WATERS)

Author(s)

Keywords

PERSIAN GULF (BUSHEHR COASTAL WATERS)Q3

FEEDING BEHAVIOURQ2

TENUOLOSA ILISHAQ3

Abstract

Hilsa shad, Tenualosa ilisha, is an euryhaline, pelagic and anadromous species which is found in marine and freshwater water. It usually migrates more than 100 km to rivers in the breeding season. This survey, carried out from July 2006 to June 2007, included a total of 344 specimens all collected by gill net from the northern Persian Gulf, Bushehr coasts (Deylam waters). As studies show, Hilsa shad is a filterfeeder species and this study demonstrated that they fed on phytoplankton much more than zooplankton.The results indicate that the most abundant phytoplankton species belong to Bacillariophyta. In this phylum, genera Chaetoceros and Cocconeis had the most and the least abundance, respectively. After Bacillariophyta, there was phylum Pyrrophyta. In this phylum, genera Ceratium and Dinophysis had the most and the least abundance, respectively. On the other hand, the most abundant zooplankton species was related to phylum Arthropoda. Class of copepoda was approximately abundant in all months except August 2006 and May 2007. After Arthropoda, phylum Ciliophora with genus Parafavella was located as second food in FEEDING BEHAVIOUR of Hilsa shad. Fluctuations between Arthropoda and Ciliophora were observed in comparison with other feeding groups. Abundance of other feeding groups was less than 5% of remainders in alimentary canal (stomach and intestine). The mean RLG was measured about 1.53±0.22 (Range 0.88-2.34). The average (GSI) was measured about 0.752±0.448 (Range 0.04-2.64).

Cites

TROPHIC LEVEL ESTIMATION IN DIFFERENT MARINE AQUATICS WITH EMPHASIS ON TROPHLAB (PERSIAN GULF AND OMAN SEA)

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APA: Copy

NASRI TAJAN, M., KEYVAN, AMIN, SOLTANI, MAHDI, VALINASAB, T., & VOSOUGHI, GH.H.. (2008). A SURVEY ON FEEDING BEHAVIOUR OF HILSA SHAD (TENUALOSA ILISHA) IN THE NORTH OF PERSIAN GULF(BUSHEHR COASTAL WATERS). NEW TECHNOLOGIES IN AQUACULTURE DEVELOPMENT (JOURNAL OF FISHERIES), 2(3), 43-50. SID. https://sid.ir/paper/161815/en

Vancouver: Copy

NASRI TAJAN M., KEYVAN AMIN, SOLTANI MAHDI, VALINASAB T., VOSOUGHI GH.H.. A SURVEY ON FEEDING BEHAVIOUR OF HILSA SHAD (TENUALOSA ILISHA) IN THE NORTH OF PERSIAN GULF(BUSHEHR COASTAL WATERS). NEW TECHNOLOGIES IN AQUACULTURE DEVELOPMENT (JOURNAL OF FISHERIES)[Internet]. 2008;2(3):43-50. Available from: https://sid.ir/paper/161815/en

IEEE: Copy

M. NASRI TAJAN, AMIN KEYVAN, MAHDI SOLTANI, T. VALINASAB, and GH.H. VOSOUGHI, “A SURVEY ON FEEDING BEHAVIOUR OF HILSA SHAD (TENUALOSA ILISHA) IN THE NORTH OF PERSIAN GULF(BUSHEHR COASTAL WATERS),” NEW TECHNOLOGIES IN AQUACULTURE DEVELOPMENT (JOURNAL OF FISHERIES), vol. 2, no. 3, pp. 43–50, 2008, [Online]. Available: https://sid.ir/paper/161815/en

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