Zooplankton composition, abundance and diversity in different biotopes associated with Arowana aquaculture
This study is an effort to determine composition, abundance and diversity of zooplankton in three different biota (lake, canal and Arowana aquaculture pond) for 6 months period from March 2013 until August 2013. This study was conducted at Bukit Merah Lake, Perak (longitude of 5°2’00’’ and latitu...
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| Format: | Project Paper Report |
| Language: | English |
| Published: |
2013
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| Online Access: | http://psasir.upm.edu.my/id/eprint/82881/1/FP%202013%20111%20-%20IR.pdf http://psasir.upm.edu.my/id/eprint/82881/ |
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| Summary: | This study is an effort to determine composition, abundance and diversity of
zooplankton in three different biota (lake, canal and Arowana aquaculture pond)
for 6 months period from March 2013 until August 2013. This study was
conducted at Bukit Merah Lake, Perak (longitude of 5°2’00’’ and latitude
100°40’00’’). Physical-chemical parameters were recorded in situ using YSI
multiparameter probe (Model 57). Water samples for nutrient analysis (NO3-N,
NO2-N and PO4-P) were collected using Van Dorn horizontal water sampler.
Zooplankton samples were collected using standard zooplankton plankton net
(35μm mesh size). Physical-chemical parameter and nutrient data were analyzed
using SURFER 10 Golden Software. Zooplankton diversity index and species
evenness were analyzed using PRIMER software package (version 6.1.9,
PRIMER-E Ltd.) and SPSS (Statistical Package for the Social Sciences. Version
16) was used to determine significant difference and correlation between each of
these factors. Zooplankton group consists of Rotifera (9 families), Copepoda
(Cyclopoid and Calanoid) and Cladocera (2 families) were found in the study
area. The zooplankton community was dominated by Rotifera that was smaller
size compared to Copepoda and Cladocera. This could be due to the predation by
fish that prefer larger size of zooplankton. Rotifera was significantly correlated
with water temperature (p<0.01) and some indicator species (Branchionus spp.,
Keratella spp. and Trichocerca spp.) were present in low density. The diversity
index and species evenness was highest in the canal. In conclusion, density of
zooplankton was higher at lake and pond compared to the canal. |
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