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Length-frequency, length-weight relationships and growth parameters of coastal trevally,
Turrum coeruleopinnatum in Terengganu waters, South China Sea, Malaysia

1 Muhammad Hanif Fadzli, Tun Nurul Aimi Mat Jaafar, Mohd Sharol Ali, Nuralif Fakhrullah Mohd
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Nur, Tan Min Pau, Rumeaida Mat Piah .
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*

1 Faculty of Fisheries and Food Science, Universiti Malaysia Terengganu, 21030 Kuala Nerus,
Terengganu, Malaysia
2 Institute Marine Biotechnology, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu,
Malaysia

* Corresponding author: rumeaida@umt.edu.my

Abstract:

Coastal trevally, Turrum coeruleopinnatum is one of the commercially important species landed in
Terengganu, Malaysia. Biological information about this species in Malaysia is still lacking. This
study aims to fulfil the gaps in the fish population dynamic and structure of this population The
population parameters such as length-frequency, length-weight relationship and growth parameter of
T. coeruleopinnatum were studied from April 2019 to March 2020. The samples was collected from
zone B trawlers that operated between 5 to 12 Nautical miles in Terengganu waters and landed at a
fishing port in Pulau Kambing, Terengganu. Of 687 individuals examined, 362 were males (52.69%),
and 325 were females (57.31%). The specimen ranged from 6.3 cm to 26.6 cm SL (mean ± SD: 13.2
± 3.84 cm) and body weight between 11.5 - 635.8 g (109.9 ± 93.5 g). The present study found that T.
coeruleopinnatum revealed negative allometric growth with the growth coefficient (b) values of
2.7984, 2.7814 and 2.7937 for males, females and pooled sexes, respectively. The regression
coefficient of length-weight relationship between sexes T. coeruleopinnatum indicate strong
regression between length and body weight as both parameters increase proportionally. The ages were
determined by counting the number of opaque rings in sectioned otolith where seven age groups were
identified. Von Bertalanffy growth parameter of species of males, females and pooled were as
followed: SLT =190.48 [1 – exp {-0.40(t-0.27)}], SLT = 57.91 [1 – exp {-0.71 (t – 0.21)}] and SLT =
153.55 [1 – exp {0.37 (t – 0.08)}] respectively, where SLT if standard length (cm) at age t. The present
study provides new references for T. coeruleopinnatum in Terengganu waters, South China Sea,
Malaysia, for future studies and relevant fishery management in the region.

Keywords: Turrum coeruleopinnatum, Fish population dynamics, Growth parameter, Length-weight
relationship

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