Sexual polymorphism in a population of Strombus canarium Linnaeus, 1758 (Mollusca

Gastropoda) at Merambong Shoal, Malaysia

Zaidi Che Cob, Aziz Arshad, Mohd Hanafi Idris, Japar Sidik Bujang, Mazlan Abd. Ghaffar

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Zaidi Che Cob, Aziz Arshad, Mohd Hanafi Idris, Japar Sidik Bujang, and Mazlan Abd Ghaffar (2008) Sexual polymorphism in a population of Strombus canarium Linnaeus, 1758 (Mollusca: Gastropoda) at Merambong Shoal, Malaysia. Zoological Studies 47(3): 318-325. Various morphometric parameters of Strombus canarium Linnaeus, 1758 from Merambong Shoal, Malaysia, were measured and analyzed. The parameters include shell length, body whorl length, shell width, shell depth, shell lip thickness, aperture length, animal weight and shell weight. The population showed sexual polymorphism, and in addition to normal males and females, a 3rd morph composed of abnormal females with imposex characters were present. The latter (imposex females) accounted for 35.71% of the total adult female sub-population. Comparisons between males and normal females showed that the former had a significantly larger, heavier, and more-elongate shell than the latter. The male shells also had a significantly thicker lip with a higher degree of posterior and lateral lip flaring. Conversely, females allocated more energy into tissue production than shell deposition relative to males. The 3rd imposex morph had a significantly larger and heavier shell, and a higher degree of thickening and flaring of the lip compared with both male and normal female shells. Imposex females also allocated less energy to gonad production relative to tissue production compared to normal females. http://zoolstud.sinica.edu.tw/Journals/47.3/318.pdf.

Original languageEnglish
Pages (from-to)318-325
Number of pages8
JournalZoological Studies
Volume47
Issue number3
Publication statusPublished - May 2008

Fingerprint

Canarium
shell (molluscs)
Mollusca
Malaysia
Gastropoda
genetic polymorphism
lips
Strombus
energy
body length
gonads

Keywords

  • Allometric analysis
  • Dog conch
  • Imposex
  • Polymorphism

ASJC Scopus subject areas

  • Animal Science and Zoology

Cite this

Sexual polymorphism in a population of Strombus canarium Linnaeus, 1758 (Mollusca : Gastropoda) at Merambong Shoal, Malaysia. / Che Cob, Zaidi; Arshad, Aziz; Idris, Mohd Hanafi; Bujang, Japar Sidik; Abd. Ghaffar, Mazlan.

In: Zoological Studies, Vol. 47, No. 3, 05.2008, p. 318-325.

Research output: Contribution to journalArticle

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