Estimation of coral reef fish biomass from fish video analysis
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Date
2014
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Universiti Malaysia Terengganu
Abstract
The fish abundance, biomass and species diversity of coral reef fishes was surveyed
in the Redang and Bidong [sland and the aspect of biomass and species diversity was
highlighted more in this study. Recent data was focused more on the fish abundance and
there is lack data on the fish biomass in the coral reef area. This study carried out to
determine the fish biomass in the area and to obtain the CHI score on the fish biomass.
Underwater video survey method was used to determine the length of fish so that it can be
used into the formula of length weight relationship to obtain the fish biomass thus integrate
it to get the CHI score. Later on the CHI score was used to determine the health of the coral
reef ecosystem. The result shows Redang Island has the higher number of fish abundance,
fish biomass and fish species diversity when compared to the Bidong Island. Fishing
pressure and benthic cover is proven to be the important criteria that influence the fish
abundance, fish biomass and fish diversity, highlighting the role of Marine Park Areas is
vital to conserve and preserve the both corals and fishes in the ecosystem.
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Muhammad Yusri Che Saad, LP 21 PPSMS 1 2014