Scale morphologies of freshwater fishes at tembat forest reserve, terengganu, Malaysia

Farah Ayuni Farinordin, Wan Seribani Wan Nilam, Shahril Mod Husin, Abdullah Samat, Shukor Md. Nor

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Scales are calcium carbonate and collagen-contained structures embedded within the fish epidermis and useful for species identification. This study aimed to describe morphological characteristics of scales and use the differences to prepare keys to species. Fishes were sampled from selected rivers of Tembat Forest Reserve, Hulu Terengganu. Specimens caught were from 3 families (Cyprinidae, Channidae, Nandidae) and 17 species. Each species was represented by ten individuals (size ranges 2.5-50 cm TL). The scales were removed, soaked in H2O2 (0.5%), NH3 (0.3%), DH2O and mounted between a pair of glass slides for digital photographing. The morphological descriptions were based on types of scales, distinctiveness of radii arrangement at the anterior field, radii cover, radii distribution, overall shape, focus position and focus pattern. Keys to species were constructed based on these scale morphological characters described. Measurements of scale total length (L), total width (W), rostral field length (L1) and caudal field length (L2) of the scales were taken using Image J software. The inter-specific variation among scales was indicated by L1/L, L2/L, L1/L2 and W/L indices through multiple comparison tests (ANOVA). It was found that all 17 species showed significant differences with at least one other species in all four indices. Pristolepis grootii (Bleeker 1852) was the only one that significantly different (p<0.05) from other 16 species in the first three indices. Species that showed the least significant differences among species was Probarbus jullieni (Sauvage 1880). The differences among the scales were primarily due to the different types of scale that was either ctenoid or cycloid.

Original languageEnglish
Pages (from-to)1429-1439
Number of pages11
JournalSains Malaysiana
Volume46
Issue number9
DOIs
Publication statusPublished - 1 Sep 2017

Fingerprint

forest reserves
freshwater fish
Malaysia
interspecific variation
Channidae
epidermis (animal)
Cyprinidae
calcium carbonate
fish
collagen
glass
analysis of variance
rivers
testing

Keywords

  • Freshwater fishes
  • Scale morphologies
  • Scale types
  • Tembat Forest Reserve
  • Terengganu

ASJC Scopus subject areas

  • General

Cite this

Scale morphologies of freshwater fishes at tembat forest reserve, terengganu, Malaysia. / Farinordin, Farah Ayuni; Nilam, Wan Seribani Wan; Husin, Shahril Mod; Samat, Abdullah; Md. Nor, Shukor.

In: Sains Malaysiana, Vol. 46, No. 9, 01.09.2017, p. 1429-1439.

Research output: Contribution to journalArticle

Farinordin, Farah Ayuni ; Nilam, Wan Seribani Wan ; Husin, Shahril Mod ; Samat, Abdullah ; Md. Nor, Shukor. / Scale morphologies of freshwater fishes at tembat forest reserve, terengganu, Malaysia. In: Sains Malaysiana. 2017 ; Vol. 46, No. 9. pp. 1429-1439.
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