Minor cyprinids in a Sri Lankan Lake in Sri Lanka: A Potentiol Supplementary Source of Income for Fishermen
Series: Asian Fisheries Forum on 17th to 22nd April 1989Publication details: 1989, Tokyo,Description: 1-16pSubject(s): Summary: Morphometry of Parokrama Samudra, a man-made lake In Sri Lanka, was studied in relation to looatlon of neste of Oreochromls (Tilapia) mossamblcus. Nests of 0. moasambicus, the doalnant fish species in the reservoir, occurred in the depth range 100-160 cm* Fluctuations in the eater level do not interrupt nesting behaviour* Reproductive failure therefore cannot be ascribed to fluctuations in eater level* The peak spawning season of 0* moasambicus coincides with highest rainfall in the area* The rainy period is followed by elevation of water level in the reservoir during December to Hay* During this period, a part of the jungle areas around the reservoir, becomes inundated* This provides a large feeding area for the young r stages, with rich supply of food* Consequently the occurence of a peak recruitment season is evident in April/Hay.| Item type | Current library | Copy number | Status | Barcode | |
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Research Papers
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NARA Main Library Ready Reference | RP0048 | Available | RP0048 |
Morphometry of Parokrama Samudra, a man-made lake In Sri Lanka, was studied in relation to looatlon of neste of Oreochromls (Tilapia) mossamblcus. Nests of 0. moasambicus, the doalnant fish species in the reservoir, occurred in the depth range 100-160 cm* Fluctuations in the eater level do not interrupt nesting behaviour* Reproductive failure therefore cannot be ascribed to fluctuations in eater level* The peak spawning season of 0* moasambicus coincides with highest rainfall in the area* The rainy period is followed by elevation of water level in the reservoir during December to Hay* During this period, a part of the jungle areas around the reservoir, becomes inundated* This provides a large feeding area for the young
r stages, with rich supply of food* Consequently the occurence of a peak recruitment season is evident in April/Hay.
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