Search Result of "Jacques Moreau"

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หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Ecosystems in Sirinthorn and Nam Ngum Reservoirs; A comparison)

ผู้เขียน:Imgทวนทอง จุฑาเกตุ, ImgJacques Moreau, ImgBoonsong Srichareondham, ImgMalasriKumsri



Trophic models were constructed for Sirinthorn Reservoir (Thailand) and Nam Ngum Reservoir (Lao PDR), using ECOPATH software to understand their ecosystems. The models reveal that the trophic structure of the reservoirs is similar. Results show that the ecosystems in both lakes are sustained and considered as productive reservoirs. The transfer efficiency is between 10 and 15 % at all levels, indicating an intact food web. In both reservoirs, total fish productions can support fishing activities. There are also presented the (1) energy flow in each trophic level, (2) mixed trophic impact, in term of predator-prey relationship and fishery and (3) calculate the net biomass and production of the groups of organisms. The fishery operates at a trophic level around three, meaning that mainly zoophagous fishes are targeted.

Article Info
KASETSART UNIVERSITY FISHERIES RESEARCH BULLETIN, Volume 24, Issue 1, May 02 - Dec 99, Page 1 - 14 |  PDF |  Page