INVESTIGATION ON BROWN TROUT (SALMO TRUTTA FARIO) DIET IN RIVERS OF LAAR RESERVOIR DURING THE SPAWNING SEASON

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SALAVATIAN SEYED MOHAMMAD; MOSTAFA GOLIYEV ZOLFAGHAR; ABBASI KEYVAN; ALIYEV ADEL; NEJHAD RAJABEI REZA

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Journal: JOURNAL OF MARINE SCIENCES AND TECHNOLOGY Year:2011 | Volume:9 | Issue:4 Page(s): 45-58

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Title

INVESTIGATION ON BROWN TROUT (SALMO TRUTTA FARIO) DIET IN RIVERS OF LAAR RESERVOIR DURING THE SPAWNING SEASON

Author(s)

Keywords

BROWN TROUTQ2

SALMO TRUTTA FARIOQ2

DIETQ2

LAAR DAM LAKEQ3

IRANQ2

Abstract

BROWN TROUT (Salmo trutta fario) is a vulnerable population of Caspian trout and it exists in most of the freshwater ecosystems of Caspian Sea basin. This study was carried out in fall of 2008 on 70 samples which were collected from Elarm, Absefid, Kamardasht and Delichahi rivers.The weight, length and age of sampled fish ranged from 28.61 to 451.29 (130.74±79.5) g, 142 to 328 (216.9±39.0) mm and 2 to 6 (3.02±1.3) years old, respectively. The results showed that coefficient of vacuity, fullness of feed and relative gut length are 0, 186.3±162.2 and 0.86±0.1, respectively.Studied fish had fed on varied food items consisting of Rhynchobdellida (Glossiphoniidae), Lumbricina (Lumbricidae), Gastropoda (Physidae), Diptera (Chironomidae, Tipulidae, Simulidae, Muscidae, Formidae, Ichneumonidae, Colicoidae and Tabanidae), Coelifera, Ephemeroptera (Baetidae and Heptagenidae), Trichoptera (Sericostomidae, Hydropsychidae, Limnephilidae, Psychomyiidae and Philopotamidae), Lepidoptera, Himeptera (Corixidae), Coleoptera (Hydrophilidae, Dytiscidae, Elmidae and Elateridae), Odonata (Agronidae), Homoptera (Fulgoridae and Aphilidae), Amphipoda (Gammaridae), Arachnida (Hygrobatidae) and BROWN TROUT. Chironomidae (88.6%), Simulidae (60.0%), Baetidae (51.4%) and Tipulidae (50.0%) were identified as main food, 13 groups as secondary food and the remaining were considered as accident food items of this fish. Diptera and Coleoptera constituted 91.52% and 6.42% of total numbers of consumed food items, respectively.

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APA: Copy

SALAVATIAN, SEYED MOHAMMAD, MOSTAFA GOLIYEV, ZOLFAGHAR, ABBASI, KEYVAN, ALIYEV, ADEL, & NEJHAD RAJABEI, REZA. (2011). INVESTIGATION ON BROWN TROUT (SALMO TRUTTA FARIO) DIET IN RIVERS OF LAAR RESERVOIR DURING THE SPAWNING SEASON. JOURNAL OF MARINE SCIENCES AND TECHNOLOGY, 9(4), 45-58. SID. https://sid.ir/paper/74557/en

Vancouver: Copy

SALAVATIAN SEYED MOHAMMAD, MOSTAFA GOLIYEV ZOLFAGHAR, ABBASI KEYVAN, ALIYEV ADEL, NEJHAD RAJABEI REZA. INVESTIGATION ON BROWN TROUT (SALMO TRUTTA FARIO) DIET IN RIVERS OF LAAR RESERVOIR DURING THE SPAWNING SEASON. JOURNAL OF MARINE SCIENCES AND TECHNOLOGY[Internet]. 2011;9(4):45-58. Available from: https://sid.ir/paper/74557/en

IEEE: Copy

SEYED MOHAMMAD SALAVATIAN, ZOLFAGHAR MOSTAFA GOLIYEV, KEYVAN ABBASI, ADEL ALIYEV, and REZA NEJHAD RAJABEI, “INVESTIGATION ON BROWN TROUT (SALMO TRUTTA FARIO) DIET IN RIVERS OF LAAR RESERVOIR DURING THE SPAWNING SEASON,” JOURNAL OF MARINE SCIENCES AND TECHNOLOGY, vol. 9, no. 4, pp. 45–58, 2011, [Online]. Available: https://sid.ir/paper/74557/en

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