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Genetic population structure of red snapper(Lutjanus malabaricus)and orange-spotted grouper(Epinephelus coiodes)in Brunei and Sabah

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Integrative Zoology 2008年第3期3卷 208-215页

作者： Zohrah H.SULAIMAN Khadijah H.ABDUL RAHMAN Teo Y.YING Hussein H.TAHA NurQistina H.MUHD TAHA Department of Biology Faculty of ScienceUniversity Brunei DarussalamJalan Tungku LinkGadongBrunei Darussalam

The genetic population structure of red snapper Lutjanus malabaricus and orange-spotted grouper Epinepheluscoiodes in Brunei and Sabah was investigated using allozyme electrophoresis. Samples were collected from threesites in Brunei for E. coiodes and from three sites in Brunei and Sabah for L. malabaricus. A total of 22 loci and 16loci were scored, respectively. The index of fixation (FST) for the E. coiodes population was 0.176 but, in general, itlacked within-population structuring. The FST was particularly high between Brunei Bay/Jerudong and Brunei Bay/Kuala Belait, suggesting genetic subdivision on a small spatial scale. Isolation of Brunei Bay from the South ChinaSea may constrain the movement of adult fishes and larval dispersal, thereby reducing homogeneity amongsubpopulations. All variable loci for E. coiodes were in Hardy–Weinberg equilibrium except for MDH* and GTDHP*(P resources inBrunei waters must take into account the presence of a single stock and two stocks, respectively.

关键词： allozymes fishery resource genetic structure of fish grouper snapper

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Current Situation of Fish resources in the Lower Reaches of the Songhua River

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Agricultural Biotechnology 2022年第6期11卷 96-99页

作者： Fei YU Zhong ZHUANG Jiujiu WANG Xin WANG Songliao River Water resources Protection Institute Changchun 130021China Jilin Shize Environmental Protection Technology Co. Ltd.Changchun 130021China

The Songhua River is one of the seven major rivers in China and an important river in Northeast China, with rich fish species and resources. Based on historical data, on-site visits and field investigation, this paper analyzed the changes of fish resources in the lower reaches of the main stream of the Songhua River, so as to understand the current situation of three grounds and one channel and resources of fishes. This study provides reference for fish conservation in the lower reaches.

关键词： The Songhua River Fish species fishery resource Historical changes

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