Length-weight relationship, condition factor and TROPH of Scatophagus argus in Malaysian coastal waters

Marina Hashim, Diana A.Zainal Abidin, Simon Kumar Das, Mazlan Abd. Ghaffar

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The present study was carried out to investigate the length-weight relationship, condition factor and TROPH of spotted scat, Scatophagus argus collected from the fish landing centre at Gelang Patah, Johor. The population growth pattern of scats was allometric negative (b < 3) indicated that the weight increment was lesser than length increment. The Fulton condition factor (K) and relative condition factor (Kn) were greater than 1 indicated the wellbeing of fish. The highest and lowest condition factor values were observed in December and June, which may indicate the spawning and recovery season of S. argus. The results of stomach content analysis showed that the algae and detritus are the most abundant prey items by weight/volumes followed by crustaceans, and fish. The most represented taxa were brown seaweed Sargassum spp., shrimp Acetes indicus, and fish. The overall mean trophic level for S. argus was close to 3 (2.977±0.364) suggesting the herbivory and carnivory feeding behaviour of fish. However detail fractal TROPH values analysis explained true scenario of S. argus diet denoting that the fish eat wide variety of diet from algae (2.19±0.2804), crustacean, benthic organism (3.55±0.2087) and even fishes (4.26±0.1776) referring the omnivory feeding behaviour. The different value of TROPH for the different standard length indicates that this species developed high degree of resiliency of which the fish can be categorized as an opportunistic feeder. Therefore, the present study nullify the previous statement which stated that the S. argus are scat eater. The data obtained from this study would be useful for fish biologist and resource managers to proper management of this important fishery resourcenot only in Malaysian waters but also nearby areas of this country.

Original languageEnglish
Pages (from-to)297-307
Number of pages11
JournalAACL Bioflux
Volume10
Issue number2
Publication statusPublished - 2017

Fingerprint

length-weight relationship
condition factor
coastal water
fish
algae
feeding behavior
feces
crustacean
Acetes
Crustacea
alga
carnivory
diet
omnivory
Scatophagus argus
Sargassum
Phaeophyceae
omnivores
stomach content
seaweed

Keywords

  • Condition factor
  • Growth
  • Omnivorous
  • Spotted scat

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Aquatic Science
  • Water Science and Technology
  • Management, Monitoring, Policy and Law

Cite this

Length-weight relationship, condition factor and TROPH of Scatophagus argus in Malaysian coastal waters. / Hashim, Marina; Abidin, Diana A.Zainal; Das, Simon Kumar; Abd. Ghaffar, Mazlan.

In: AACL Bioflux, Vol. 10, No. 2, 2017, p. 297-307.

Research output: Contribution to journalArticle

Hashim, Marina ; Abidin, Diana A.Zainal ; Das, Simon Kumar ; Abd. Ghaffar, Mazlan. / Length-weight relationship, condition factor and TROPH of Scatophagus argus in Malaysian coastal waters. In: AACL Bioflux. 2017 ; Vol. 10, No. 2. pp. 297-307.
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