Abundance and diversity of major zooplankton groups during premonsoon season in the Port Qasim creek system - Karachi
A preliminary study was conducted on the occurrence and faunasticcomposition of zooplankton in two creeks of Port Qasim creek system during January toApril 1998 (pre-monsoon season). Total 14 major groups were recorded during the studyperiod. Despite the importance of zooplankton in aquatic food web meager information isavailable on the assemblage of zooplankton in the port Qasim creek system. Highestmean (%) compositions (38.96) were recorded in copepod at station # 1 and chaetognath(23.95) at station # 2. Copepods, chaetognath and zoea were the major component ofzooplanktonic groups at both the stations. The hydrographic parameters such as airtemperature (oC), water temperature (oC), salinity (ppt), dissolved oxygen (mg/L), pH,and transparency (cm) were recorded on monthly basis. No significance correlation at(P < 0.05) was observed in between zooplankton with hydrographic parameters, localityand months. The number of zooplankton/100m3 found in order at station #1: copepod >chaetognath > zoea > penaeid PL > amphipoda > hydromedusae > caridean PL > fishlarvae > lucifer > megalopa > fish eggs > mysids > acetes > squilla larvae. At station # 2:chaetognath > copepod > zoea > mysids > Lucifer > hydromedusae > megalopa >penaeid PL > fish larvae > fish eggs > amphipoda > caridean PL > others > acetes >squilla larvae.
| Main Authors: | , |
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| Format: | article biblioteca |
| Language: | English |
| Published: |
2015
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| Subjects: | Biology, Port Qasim creek system, diversity, major zooplankton groups, pre-monsoon., |
| Online Access: | http://hdl.handle.net/1834/40794 |
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