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Nematode Diversity on Nemipterus hexodon (Quoy & Gaimard, 1824) and<br />

Nemipterus nematophorus (Bleeker, 1854) from Sabah Waters<br />

Nik Nurul Fatihah Binti Nik Pa<br />

Supervisor: Dr. Melissa Beata Martin<br />

Bachelor of Science (Marine Biology)<br />

School of Marine and Environmental Sciences<br />

This study focuses the composition and infection rate of nematodes on Nemipterus<br />

hexodon and Nemipterus nematophorus from three different fish markets at Sabah.<br />

The length and weight of the nemipterids respectively ranged as follows: N. hexodon<br />

from 15.3-18.2 cm (17.14 ± 1.03) and 76.6-134.18 g (108.74 ± 21.4); N.<br />

nematophorus from 15.2-21.8 cm (17.53 ± 2.43) and 70.5-125.15 g (93.95 ± 20.66).<br />

The nematodes in N. hexodon and N. nematophorus belonged to two genera of the<br />

order Rhabdita: Anisakis sp. and order Rhabditida: Hysterothylacium sp. Anisakis sp.<br />

were found in the body cavity and stomach of N. hexodon (prevalence 44.4% and<br />

mean intensity 2.25); and in the body cavity, stomach and pyloric caeca for N.<br />

nematophorus (prevalence 60% and mean intensity 2.67). Hysterothylacium sp. were<br />

found only in the liver of both N. hexodon (prevalence 11.1%; mean intensity 3.0)<br />

and N. nematophorus (prevalence 10%; mean intensity 3.0). Though most nematodes<br />

can cause pathogenic effects, this study shows low count in its host and is safe for<br />

consumption.<br />

1825 | UMT UNDERGRADUATE RESEARCH DAY 2018

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