Some aspects of population biology of edible orange mud crab, Scylla olivacea (Herbst, 1796) during pre and post monsoon in Setiu Wetlands, Terengganu, Malaysia

Nadirah Musa, Mohammad Tajuddin Abdul Manaf, Nur Azna Saari, Norhazwani Hamzah, Wan Norhafizah Wan Ibrahim, Alia Syafiqah Aznan, Khairulbariyyah Zakaria, Shahrul Hafiz Abd Ghani, Laith Abdul Razzak, Najiah Musa, Sandra Catherine Zainathan, Mohd Effendy Abdul Wahid, Faizah Shaharom-Harrison, Mohd Azmi Ambak, Mhd Ikhwanuddin, Mazlan Abd. Ghaffar

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Population biology is regarded as one of the important domain for nature resource management particularly when any species of economic and social importance is involved. In this study, the population structure of tropical orange mud crab, Scylla olivacea (Herbst 1796) was investigated in a tropical mangrove forest in Setiu Wetlands, Terengganu, Malaysia. This study specifically address some aspects of population biology of this species particularly of sex ratio, carapace width-weight and growth pattern. Mud crabs were sampled during pre and post monsoon season i.e. during October 2014 and January 2015, respectively. Mud crabs were collected using crab-baited collapsible traps in the identified areas. A total of 30 crabs were captured, of which 18 were male (60.0%) and 12 were female (40.0%). The overall sex ratio, male to female for pre monsoon and post monsoon were ( and 3:1, respectively. Male's mud crab were bigger and heavier than females. Positive correlation was observed between carapace width and body weight in both sexes (r2= more than 0.8). Negative allometric growth (b < 3) was observed in females during pre-monsoon month. Significant difference (P < 0.05) was found between the condition factor (K) of pre monsoon and post monsoon month of both sexes. As such, our results provide some important biological information on the population biology of mud crabs in Setiu Wetlands which may help to reduce the fishing pressure on this crustacean species.

Original languageEnglish
Pages (from-to)29-37
Number of pages9
JournalJournal of Sustainability Science and Management
Volume2017
Issue numberSpecial Issue 3
Publication statusPublished - 1 Jan 2017

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Wetlands
wetland
Malaysia
biology
crab
mud
monsoon
sex ratio
body weight
Economics
condition factor
mangrove
population structure
crustacean
management
resources
resource management
fishing
economics

Keywords

  • Carapace width-weight
  • Condition factor (K)
  • Scylla olivacea
  • Sex ratio

ASJC Scopus subject areas

  • Geography, Planning and Development
  • Pollution
  • Management, Monitoring, Policy and Law

Cite this

Some aspects of population biology of edible orange mud crab, Scylla olivacea (Herbst, 1796) during pre and post monsoon in Setiu Wetlands, Terengganu, Malaysia. / Musa, Nadirah; Manaf, Mohammad Tajuddin Abdul; Saari, Nur Azna; Hamzah, Norhazwani; Ibrahim, Wan Norhafizah Wan; Aznan, Alia Syafiqah; Zakaria, Khairulbariyyah; Ghani, Shahrul Hafiz Abd; Razzak, Laith Abdul; Musa, Najiah; Zainathan, Sandra Catherine; Wahid, Mohd Effendy Abdul; Shaharom-Harrison, Faizah; Ambak, Mohd Azmi; Ikhwanuddin, Mhd; Abd. Ghaffar, Mazlan.

In: Journal of Sustainability Science and Management, Vol. 2017, No. Special Issue 3, 01.01.2017, p. 29-37.

Research output: Contribution to journalArticle

Musa, N, Manaf, MTA, Saari, NA, Hamzah, N, Ibrahim, WNW, Aznan, AS, Zakaria, K, Ghani, SHA, Razzak, LA, Musa, N, Zainathan, SC, Wahid, MEA, Shaharom-Harrison, F, Ambak, MA, Ikhwanuddin, M & Abd. Ghaffar, M 2017, 'Some aspects of population biology of edible orange mud crab, Scylla olivacea (Herbst, 1796) during pre and post monsoon in Setiu Wetlands, Terengganu, Malaysia', Journal of Sustainability Science and Management, vol. 2017, no. Special Issue 3, pp. 29-37.
Musa, Nadirah ; Manaf, Mohammad Tajuddin Abdul ; Saari, Nur Azna ; Hamzah, Norhazwani ; Ibrahim, Wan Norhafizah Wan ; Aznan, Alia Syafiqah ; Zakaria, Khairulbariyyah ; Ghani, Shahrul Hafiz Abd ; Razzak, Laith Abdul ; Musa, Najiah ; Zainathan, Sandra Catherine ; Wahid, Mohd Effendy Abdul ; Shaharom-Harrison, Faizah ; Ambak, Mohd Azmi ; Ikhwanuddin, Mhd ; Abd. Ghaffar, Mazlan. / Some aspects of population biology of edible orange mud crab, Scylla olivacea (Herbst, 1796) during pre and post monsoon in Setiu Wetlands, Terengganu, Malaysia. In: Journal of Sustainability Science and Management. 2017 ; Vol. 2017, No. Special Issue 3. pp. 29-37.
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