Trophic position of archerfish species (Toxotes chatareus and Toxotes jaculatrix) in the Malaysian estuaries

Simon Kumar Das, Mazlan Abd. Ghaffar

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

The study objectives were to identify (i) the diet composition of two co-occurring archerfish species (Toxotes chatareus and Toxotes jaculatrix), (ii) their potential food preferences, and (iii) their overall trophic level in Malaysian estuaries. For this purpose the stomachs of 128 archerfishes ranging in size of 9.8-22.5 cm and 8.7-23 cm, respectively, were examined from selected Malaysian estuaries. Crustaceans, in particular red clawed crab (Sesarma bidens), occurred in the majority of stomachs and constituted 72.55 and 66.43% of the diet by weight in T. chatareus and T. jaculatrix, respectively. Insects were mostly Formicidae, Dytiscidae, Araneidae, and Cerambycidae and occurred in 10.8, 12.0; 5.1, 6.3; 4, 5.3; 3.2, 1.7% in T. chatareus and T. jaculatrix species and constituted the second most important food category consumed. Other crustaceans and shrimp (Penaeus sp.) constituted 4.4 and 2.7% of the diet by weight and were the third most important food type consumed by the two species. Moreover, these species hardly ever exhibited cannibalistic traits; Toxotes spp. comprised only 5.5% of stomach contents and was observed only in the T. jaculatrix species. Stomach content and trophic level analysis denoted that T. chatareus and T. jaculatrix are strongly carnivorous species. Furthermore, diets did not differ significantly between sizes or sexes and geographic location.

Original languageEnglish
Pages (from-to)84-88
Number of pages5
JournalJournal of Applied Ichthyology
Volume26
Issue number1
DOIs
Publication statusPublished - Feb 2010

Fingerprint

stomach
estuaries
estuary
diet
Crustacea
Penaeus
stomach content
Bidens
Dytiscidae
Araneidae
trophic level
crustacean
Cerambycidae
food choices
food preference
crabs
Formicidae
shrimp
food
insects

ASJC Scopus subject areas

  • Aquatic Science

Cite this

Trophic position of archerfish species (Toxotes chatareus and Toxotes jaculatrix) in the Malaysian estuaries. / Das, Simon Kumar; Abd. Ghaffar, Mazlan.

In: Journal of Applied Ichthyology, Vol. 26, No. 1, 02.2010, p. 84-88.

Research output: Contribution to journalArticle

@article{2d6248a9cd1c47409869eeb003b498cd,
title = "Trophic position of archerfish species (Toxotes chatareus and Toxotes jaculatrix) in the Malaysian estuaries",
abstract = "The study objectives were to identify (i) the diet composition of two co-occurring archerfish species (Toxotes chatareus and Toxotes jaculatrix), (ii) their potential food preferences, and (iii) their overall trophic level in Malaysian estuaries. For this purpose the stomachs of 128 archerfishes ranging in size of 9.8-22.5 cm and 8.7-23 cm, respectively, were examined from selected Malaysian estuaries. Crustaceans, in particular red clawed crab (Sesarma bidens), occurred in the majority of stomachs and constituted 72.55 and 66.43{\%} of the diet by weight in T. chatareus and T. jaculatrix, respectively. Insects were mostly Formicidae, Dytiscidae, Araneidae, and Cerambycidae and occurred in 10.8, 12.0; 5.1, 6.3; 4, 5.3; 3.2, 1.7{\%} in T. chatareus and T. jaculatrix species and constituted the second most important food category consumed. Other crustaceans and shrimp (Penaeus sp.) constituted 4.4 and 2.7{\%} of the diet by weight and were the third most important food type consumed by the two species. Moreover, these species hardly ever exhibited cannibalistic traits; Toxotes spp. comprised only 5.5{\%} of stomach contents and was observed only in the T. jaculatrix species. Stomach content and trophic level analysis denoted that T. chatareus and T. jaculatrix are strongly carnivorous species. Furthermore, diets did not differ significantly between sizes or sexes and geographic location.",
author = "Das, {Simon Kumar} and {Abd. Ghaffar}, Mazlan",
year = "2010",
month = "2",
doi = "10.1111/j.1439-0426.2009.01351.x",
language = "English",
volume = "26",
pages = "84--88",
journal = "Journal of Applied Ichthyology",
issn = "0175-8659",
publisher = "Wiley-Blackwell",
number = "1",

}

TY - JOUR

T1 - Trophic position of archerfish species (Toxotes chatareus and Toxotes jaculatrix) in the Malaysian estuaries

AU - Das, Simon Kumar

AU - Abd. Ghaffar, Mazlan

PY - 2010/2

Y1 - 2010/2

N2 - The study objectives were to identify (i) the diet composition of two co-occurring archerfish species (Toxotes chatareus and Toxotes jaculatrix), (ii) their potential food preferences, and (iii) their overall trophic level in Malaysian estuaries. For this purpose the stomachs of 128 archerfishes ranging in size of 9.8-22.5 cm and 8.7-23 cm, respectively, were examined from selected Malaysian estuaries. Crustaceans, in particular red clawed crab (Sesarma bidens), occurred in the majority of stomachs and constituted 72.55 and 66.43% of the diet by weight in T. chatareus and T. jaculatrix, respectively. Insects were mostly Formicidae, Dytiscidae, Araneidae, and Cerambycidae and occurred in 10.8, 12.0; 5.1, 6.3; 4, 5.3; 3.2, 1.7% in T. chatareus and T. jaculatrix species and constituted the second most important food category consumed. Other crustaceans and shrimp (Penaeus sp.) constituted 4.4 and 2.7% of the diet by weight and were the third most important food type consumed by the two species. Moreover, these species hardly ever exhibited cannibalistic traits; Toxotes spp. comprised only 5.5% of stomach contents and was observed only in the T. jaculatrix species. Stomach content and trophic level analysis denoted that T. chatareus and T. jaculatrix are strongly carnivorous species. Furthermore, diets did not differ significantly between sizes or sexes and geographic location.

AB - The study objectives were to identify (i) the diet composition of two co-occurring archerfish species (Toxotes chatareus and Toxotes jaculatrix), (ii) their potential food preferences, and (iii) their overall trophic level in Malaysian estuaries. For this purpose the stomachs of 128 archerfishes ranging in size of 9.8-22.5 cm and 8.7-23 cm, respectively, were examined from selected Malaysian estuaries. Crustaceans, in particular red clawed crab (Sesarma bidens), occurred in the majority of stomachs and constituted 72.55 and 66.43% of the diet by weight in T. chatareus and T. jaculatrix, respectively. Insects were mostly Formicidae, Dytiscidae, Araneidae, and Cerambycidae and occurred in 10.8, 12.0; 5.1, 6.3; 4, 5.3; 3.2, 1.7% in T. chatareus and T. jaculatrix species and constituted the second most important food category consumed. Other crustaceans and shrimp (Penaeus sp.) constituted 4.4 and 2.7% of the diet by weight and were the third most important food type consumed by the two species. Moreover, these species hardly ever exhibited cannibalistic traits; Toxotes spp. comprised only 5.5% of stomach contents and was observed only in the T. jaculatrix species. Stomach content and trophic level analysis denoted that T. chatareus and T. jaculatrix are strongly carnivorous species. Furthermore, diets did not differ significantly between sizes or sexes and geographic location.

UR - http://www.scopus.com/inward/record.url?scp=75649140201&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=75649140201&partnerID=8YFLogxK

U2 - 10.1111/j.1439-0426.2009.01351.x

DO - 10.1111/j.1439-0426.2009.01351.x

M3 - Article

AN - SCOPUS:75649140201

VL - 26

SP - 84

EP - 88

JO - Journal of Applied Ichthyology

JF - Journal of Applied Ichthyology

SN - 0175-8659

IS - 1

ER -