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DNA Barcoding of Commercially Important Groupers (Epinephelidae) in Simeulue and Banyak Islands, Aceh, Indonesia Fadli, Nur; Razi, Nanda Muhammad; Damora, Adrian; Muchlisin, Zainal A.; Ramadhaniaty, Mutia; Rahayu, Sri Riska; Harnelly, Essy; Habib, Ahasan; Siti-Azizah, Mohd Nor
HAYATI Journal of Biosciences Vol. 32 No. 4 (2025): July 2025
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.32.4.1080-1091

The groupers are a group of demersal fish that live in tropical and subtropical areas and are mostly linked to coral reefs. The fish are highly valued in international markets and are subjected to overfishing in the wild. Accurate fish resource identification knowledge is essential for sustainable fisheries management. This research is aimed to generate a reference COI sequence library of grouper species caught in Simeulue and Banyak Islands, Aceh. The study was conducted from April-September 2021 at sixteen fish landing sites in Simeulue and Banyak Islands. In total, this study generated 70 COI sequences representing 20 grouper species. Epinephelus (54%) was the most prevalent grouper genus at the study site, followed by Cephalopholis (19%), Plectropomus (13%), Variola (12%), Hyporthodus (1%), and Anyperodon (1%). According to the IUCN classification, 17 species (85%) fall into the category of Least Concern, two (10%) fall into the category of Vulnerable, and one (5%) falls into the category of Data Deficient. The average genetic distance based on the Kimura-2-Parameter (K2P) between specimens was 0.51% at the species level and 8.34% at the genus level. Overall, this study has provided the COI sequence database of grouper for the Simeulue and Banyak Islands.

Daya Dukung Tambak Udang Vaname (Litopenaeus vannamei) Berdasarkan Parameter Kualitas Air di Desa Purworejo, Kecamatan Pasir Sakti, Kabupaten Lampung Timur Alfionita, Wuni; Larasati, Ellen; Pradana, Hengki; Rahman, Agus Arif; Husna, Asmaul; Riandi, Muhammad; Razi, Nanda Muhammad
Jurnal Ilmiah Samudra Akuatika Vol 9 No 1 (2025): Jurnal Ilmiah Samudra Akuatika
Publisher : Fakultas Pertanian Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33059/jisa.v9i1.11345

This study evaluates the carrying capacity of Litopenaeus vannamei ponds based on water quality parameters in Purworejo Village, East Lampung, Indonesia. Water samples were collected from five ponds over a 90-day culture period, measuring physicochemical parameters including temperature, pH, dissolved oxygen (DO), salinity, ammonia, nitrite, and hardness. Results showed temperature ranging from 28 to 31°C, pH 7.5 to 8.2, DO 6.8 mg/L, salinity 15–22 ppt, ammonia 0.02 to 0.07 mg/L, nitrite 0.05 to 0.12 mg/L, and hardness 1,200 to 2,300 mg/L. Most values were within the optimal ranges for vannamei shrimp culture according to FAO and national standards, although DO fluctuations and elevated nitrite levels may constrain stocking density. These findings indicate that the studied ponds remain suitable, with an estimated optimal carrying capacity of 80–100 shrimp/m². This study provides baseline data for water quality management and sustainable stocking strategies in vannamei shrimp aquaculture at Purworejo Village, Pasir Sakti Subdistrict, East Lampung District, East Lampung.

Analysis of heavy metals contamination in chue snails (Faunus ater) from estuary of the southwestern coast of Aceh Province, Indonesia Mahfud, Mahfud; Razi, Nanda Muhammad; Nasir, Muhammad; Muchlisin, Zainal Abidin
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 14, No 3 (2025): SEPTEMBER 2025
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.14.3.47990

The southwestern coast of Aceh Province is among the areas vulnerable to heavy metal pollution originating from human activities, including mining, agriculture, and household waste. Chue snails (Faunus ater) are among the aquatic organisms that can be used as a bioindicator of water pollution. Therefore, this study aimed to evaluate the content of Lead (Pb), Cadmium (Cd) and Mercury (Hg) in F. ater snails originating from seven estuary areas in the southwestern coast area of Aceh Province. Analysis was also carried out to determine the environmental factors affecting metal accumulation and potential risks to public health. Sampling was performed in various areas, including the Jembatan Kembar River (Aceh Singkil), Trumon River (South Aceh), Kuala Lama Tuha (Southwest Aceh), Peunaga Cut Ujong River (Nagan Raya), Suak Ribe Puteh (West Aceh), Teunom River (Aceh Jaya), and Leupung River (Aceh Besar). This study used a laboratory analysis method with Atomic Absorption Spectrophotometry (AAS) instruments to measure metal concentrations in F. ater tissue. The results showed that all samples from seven areas were contaminated with Pb, Cd, and Hg at levels ranging from 0.691 - 1.575 mg/kg, 0.285 - 0.311 mg/kg, and 0.001 0.030 mg/kg, respectively. Pb and Cd content showed high heavy metal content, which exceeded the safe threshold according to the Food and Drug Administration (BPOM), Republic of Indonesia, with the greatest concentration found in the Southwest Aceh Regency. These results showed that the consumption of F. ater had the potential to endanger public health. Therefore, it is necessary to conduct outreach to the community to increase environmental awareness and food safety.Keywords:Heavy MetalBioaccumulationEstuaryBioindicatorsFaunus aterSDGs 13SDGs 14

Analysis of heavy metals contamination in chue snails (Faunus ater) from estuary of the southwestern coast of Aceh Province, Indonesia Mahfud, Mahfud; Razi, Nanda Muhammad; Nasir, Muhammad; Muchlisin, Zainal Abidin
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 14, No 3 (2025): SEPTEMBER 2025
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.14.3.47990

The southwestern coast of Aceh Province is among the areas vulnerable to heavy metal pollution originating from human activities, including mining, agriculture, and household waste. Chue snails (Faunus ater) are among the aquatic organisms that can be used as a bioindicator of water pollution. Therefore, this study aimed to evaluate the content of Lead (Pb), Cadmium (Cd) and Mercury (Hg) in F. ater snails originating from seven estuary areas in the southwestern coast area of Aceh Province. Analysis was also carried out to determine the environmental factors affecting metal accumulation and potential risks to public health. Sampling was performed in various areas, including the Jembatan Kembar River (Aceh Singkil), Trumon River (South Aceh), Kuala Lama Tuha (Southwest Aceh), Peunaga Cut Ujong River (Nagan Raya), Suak Ribe Puteh (West Aceh), Teunom River (Aceh Jaya), and Leupung River (Aceh Besar). This study used a laboratory analysis method with Atomic Absorption Spectrophotometry (AAS) instruments to measure metal concentrations in F. ater tissue. The results showed that all samples from seven areas were contaminated with Pb, Cd, and Hg at levels ranging from 0.691 - 1.575 mg/kg, 0.285 - 0.311 mg/kg, and 0.001 0.030 mg/kg, respectively. Pb and Cd content showed high heavy metal content, which exceeded the safe threshold according to the Food and Drug Administration (BPOM), Republic of Indonesia, with the greatest concentration found in the Southwest Aceh Regency. These results showed that the consumption of F. ater had the potential to endanger public health. Therefore, it is necessary to conduct outreach to the community to increase environmental awareness and food safety.Keywords:Heavy MetalBioaccumulationEstuaryBioindicatorsFaunus aterSDGs 13SDGs 14

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