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Comparison of Larval Fish Density between Seagrass Beds and Outside Seagrass Beds of the Southwestern Johor, Peninsular Malaysia.


Citation

Ara, Roushon and Arshad, Aziz and Nurul Amin, Sanker Mohammad and Daud, Siti Khalijah and Mazlan, Abd. Ghaffar (2011) Comparison of Larval Fish Density between Seagrass Beds and Outside Seagrass Beds of the Southwestern Johor, Peninsular Malaysia. Journal of Fisheries and Aquatic Science, 6 (7). pp. 795-801. ISSN 1816-4927; ESSN: 1996-0751

Abstract

Temporal variation of fish larval density and composition between seagrass and outside seagrass beds of the southwestern Johor, Malaysia were investigated between October 2007 and September 2008. Fish larvae were sampled monthly by using a bongo net with 500 μm mesh size and 30 min sub-surface tow. In situ environmental variables were also recorded during the sampling works. The fish larval assemblage comprised of 20 families from the seagrass beds and 16 families recorded from the outside seagrass beds station. In total, 3738 larvae (2,801 from seagrass and 937 from non-seagrass area) were collected. Total larva density was at 79 individuals per 100 m3 and 34 individuals per 100 m3 for seagrass beds and outside seagrass station respectively. Larval abundance varied significantly within monsoon and inter-monsoon seasons, with peaks in February-March and May-July. Top five families were Blenniidae, Clupeidae, Gobiidae, Sillaginidae and Terapontidae and they occurred consistently throughout the year. Larvae belonging to family Clupeidae (47.94% in seagrass and 42.03% in outside seagrass) and Terapontidae (17% in seagrass and 24% in outside seagrass) were the most abundant family in the study areas. The highest density of total larval fishes was recorded at the seagrass ecosystem. The spatial variations in larval density were not significantly (p>0.05) different between the seagrass beds and open sea station.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Agriculture
Faculty of Science
Publisher: Academic Journals
Keywords: Fish larvae; Density; Seagrass; Johor; Malaysia.
Depositing User: Nur Farahin Ramli
Date Deposited: 01 Feb 2014 05:57
Last Modified: 07 Oct 2015 01:58
URI: http://psasir.upm.edu.my/id/eprint/23808
Statistic Details: View Download Statistic

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