Heavy Metal Concentrations In Bukit Merah Reservoir And Human Health Risk Due To Fish Consumption

The freshwater ecosystem, such as Bukit Merah Reservoir (BMR), plays an important role ecologically and economically to the local population. The contamination of heavy metals in the surface sediment of BMR may cause adverse effects on the living biota in the reservoir and ultimately affect humans' health. This study's objectives were to evaluate the spatial distribution of heavy metals in the surface sediment of BMR and assess the ecological index assessment. This study also investigated the bioaccumulation of heavy metals in different parts of eight fish species found in the BMR and the health risk assessment for humans. A total of 30 surface sediment samples were collected and the physicochemical parameters of both water and surface sediments were also measured. The results showed that, the descending order of mean concentrations of heavy metals in the surface sediments of BMR was Fe > Mn > Pb > Zn > Cr > As > Cu > Ni. High accumulation of heavy metals was found in the southern part of the lake, where anthropogenic activities were predominant. In summary, the accumulation and enrichment of heavy metals in the surface sediment of BMR were due to anthropogenic factors such as plantations, logging, sand mining and discharges from fisherman piers

Length-weight relationships, condition factor and growth parameters of Periophthalmus chrysospilos (Bleeker, 1852) (Gobiiformes: Gobiidae) in Bayan Bay, Penang, Malaysia

This study reports the length-weight relationships (LWR), body condition factor (Kn) and growth parameters of Periophthalmus chrysospilos in Bayan Bay of Penang, Malaysia. The values of exponent b for all categories of fish were higher than 3 indicating a positive allometric growth. The mean condition factor (Kn) for all categories of fish also higher than 1 which reflect the well beings of fish in the study area. The b values of LWR and condition factors for male was similar to female fish, but the b values of LWR and condition factors were significantly higher in rainy months compared to the dry months. The parameters of population dynamic show the asymptotic length (L∞) of 13.20 cm, growth coefficient (K) of 0.68 year-1, growth performance index (Ø’) of 2.074, total mortality (Z) of 2.47 year-1, and fishing mortality (F) of 0.70 year-1. The exploitation level (E) was 0.28 year-1 indicating of low exploitation and estimation of length at first capture was 7.69 cm. The annual recruitment pattern of P. chrysospilos was recruited in two peaks per year

Abstracts of the International Halal Science Conference 2023

This book presents the extended abstracts of the selected contributions to the International Halal Science Conference, held on 22-23 August 2023 by the International Institute for Halal Research and Training (INHART), IIUM, Malaysia in collaboration with Halalan Thayyiban Research Centre, University Islam Sultan Sharif (UNISSA), Brunei Darussalam. With the increasing global interest in halal products and services, this conference is timely. Conference Title:  International Halal Science ConferenceConference Acronym: IHASC23Conference Theme: Halal Industry Sustainability Through ScienceConference Date: 22-23 August 2023Conference Venue: International Islamic University (IIUM), MalaysiaConference Organizer: International Institute for Halal Research and Training (INHART), International Islamic University (IIUM), Malaysi