Spatio-temporal variation of larval fishes at Matang Mangrove Ecosystem, Perak, Malaysia /
Spatio-temporal variations of larval fishes were investigated in the Matang Mangrove ecosystem, Perak, in dry season (May to July 2015) and wet season (November 2015 – January 2016). Three sampling station were selected namely MO (Sungai Tiram Laut), MT (Sungai Tinggi), and MS (Sungai Sepetang). Sam...
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Fformat: | Thesis Llyfr |
Iaith: | English |
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2016.
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Crynodeb: | Spatio-temporal variations of larval fishes were investigated in the Matang Mangrove ecosystem, Perak, in dry season (May to July 2015) and wet season (November 2015 – January 2016). Three sampling station were selected namely MO (Sungai Tiram Laut), MT (Sungai Tinggi), and MS (Sungai Sepetang). Samples were collected by using Bongo net equipped with a flow meter. The mean values of temperature, dissolved oxygen, salinity, pH and total dissolved solid were 29.64 ± 0.26 ( C), 3.92 ± 0.29; 19.72 ± 2.12 (mg/L); 7.12 ± 2.12 (ppt); 7.12 ± 0.07; 21.03 ± 2.01 (mg/L) in the investigated areas. There were significant (p < 0.05) variations in salinity and total dissolved solid among the investigated areas. However, no significant (p > 0.05) variations were observed in temperature, dissolved oxygen and pH among the investigated areas. There were significant (p < 0.05) variations in salinity, temperature and total dissolved solid among the month. However, no significant (p > 0.05) variations were observed in Dissolved oxygen and pH among the different months during 6 month study period. In total, over 4711 larval fishes from 15 families were identified from the investigated areas. Among them 9 families were observed in wet season and 13 in dry season. Overall 4 families (Gobiidae, Engraulidae, Blenniidae and Ambassidae) were dominant in the investigated areas. For spatial diversity, the mean density of larval fishes was found to be 8.42, 47.23 and 194.18 individuals/100m in station MO, MT and MS respectively. The diversity indices were calculated highest at moderately disturbed station Sungai Tinggi (MT). While, for the seasonal diversity, the mean density of larval fishes was found to be 139.17 and 27.38 individuals/100m in wet and dry seasons respectively. However, all diversity indices were recorded highest at dry season. Only the family richness was showed significant variation (p < 0.05) among the stations. None of the diversity indices showed significant (p > 0.05) between wet and dry season. |
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Disgrifiad Corfforoll: | 47 leaves : ill. ; 30cm. |