Comparison of larval fish density between seagrass beds and outside seagrass beds of the Southwestern Johor, Peninsular Malaysia

R. Ara, A. Arshad, S. M N Amin, S. K. Daud, Mazlan Abd. Ghaffar

Research output: Contribution to journalArticle

3 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)795-801
Number of pages7
JournalJournal of Fisheries and Aquatic Science
Volume6
Issue number7
DOIs
Publication statusPublished - 1 Jan 2011

Fingerprint

seagrass
Malaysia
Terapontidae
Clupeidae
fish
larvae
Sillaginidae
family studies
monsoon season
Gobiidae
fish larvae
temporal variation
spatial variation
larva
environmental factors
comparison
ecosystems
monsoon
mesh size
sampling

Keywords

  • Abundance
  • Density
  • Fish larvae
  • Seagrass habitat

ASJC Scopus subject areas

  • Aquatic Science
  • Animal Science and Zoology

Cite this

Comparison of larval fish density between seagrass beds and outside seagrass beds of the Southwestern Johor, Peninsular Malaysia. / Ara, R.; Arshad, A.; Amin, S. M N; Daud, S. K.; Abd. Ghaffar, Mazlan.

In: Journal of Fisheries and Aquatic Science, Vol. 6, No. 7, 01.01.2011, p. 795-801.

Research output: Contribution to journalArticle

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