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All Journal Biodiversitas Journal of Biological Diversity
ARIEF SETYANTO
Department of Fisheries, Faculty of Fisheries and Marine Science, Universitas Brawijaya. Jl. Veteran 1, Malang 65145, East Java, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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[RETRACTED] Conservation status of sharks and rays caught in Indonesian Fisheries Management Area 712 TRI DJOKO LELONO; GATUT BINTORO; ARIEF SETYANTO; DADUK SETYAHADI; DARMAWAN OKTO SUTJIPTO; WIRASTIKA ADHIHAPSARI; DIAN ALIVIYANTI; ANDIK ISDIANTO
Biodiversitas Journal of Biological Diversity Vol. 25 No. 6 (2024)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d250631

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Abstract. Lelono TD, Bintoro G, Setyanto A, Setyahadi D, Sutjipto DO, Adhihapsari W, Aliviyanti D, Isdianto A. 2024. Conservation status of sharks and rays caught in Indonesian Fisheries Management Area 712. Biodiversitas 25: 2603-2614. Elasmobranchs, including sharks and rays, are some of the most vulnerable marine fish and are particularly at risk from fishing pressure. Sharks and rays landing data that listed in the Convention on International Trade in Endangered Species (CITES) appendices and/or assessed as in The International Union for Conservation of Nature (IUCN) Red List threatened categories were collected from July to October 2023 at two sites in Indonesian Fisheries Management Area (FMA) 712, East Java, Indonesia, namely Pelabuhan Perikanan Nusantara (PPN) Brondong at Lamongan District and Pelabuhan Perikanan Pantai (PPP) Muncar at Banyuwangi. Stingray species designated as Critically Endangered (CR), Endangered (EN), or Vulnerable (VU) were recorded at both landing sites. More IUCN Red List threatened ray species were recorded at Brondong than at Muncar. Based on Brondong's international trade status, ray species landed at Brondong are at higher risk of extinction than those landed at PPP Muncar. Six shark species are currently listed in CITES Appendix II: A pelagicus, A. superciliosus, S. lewini, S. zygaena, C. falciformis, and I. oxyrinchus. At PPP Muncar, two of these species were traded. Sharks landing at Muncar included species in IUCN Red List categories, while those landing at Brondong were in four categories. Two CITES categories regulate the capture of sharks landed at PPP Muncar and PPN Brondong. At both sites, numerous species with conservation statuses of CR, EN, VU, and NT are still caught. In conclusion, exploitation and insufficient control threaten the shark and ray populations in PPP Muncar and PPN Brondong. To save these species, conservation efforts should prioritize trade monitoring, habitat protection, and stricter laws.
Observation of Scleractinian juveniles' composition, distribution, and density in shallow waters of Kondang Merak Beach, Southern Malang, East Java, Indonesia ROSDIANTO ROSDIANTO; OKTIYAS MUZAKY LUTHFI; ANWAN RAHMAT ARDIANSYAH; M. AZUREA BAHRI LUTHFI; ANDIK ISDIANTO; DESY SETYONINGRUM; ARIEF SETYANTO; LISA NUR HIDAYAH; AULIA LANUDIA FATHAH; BERLANIA MAHARDIKA PUTRI; NOVAR KURNIA WARDANA; SUPRIYADI SUPRIYADI
Biodiversitas Journal of Biological Diversity Vol. 25 No. 8 (2024)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d250839

Abstract

Abstract. Rosdianto, Luthfi OM, Ardiansyah AR, Luthfi MAB, Isdianto A, Setyoningrum D, Setyanto A, Hidayah LN, Fathah AL, Putri BM, Wardana NK, Supriyadi. 2024. Observation of Scleractinian juveniles' composition, distribution, and density in shallow waters of Kondang Merak Beach, Southern Malang, East Java, Indonesia. Biodiversitas 25: 2663-2668. Kondang Merak Waters, a habitat for various hard corals that grow in flat areas of intertidal reefs, serve as a crucial location for understanding the influence of juvenile corals on the dynamics of coral communities in shallow waters. The research was conducted in 2020 in Kondang Merak, which studied the composition and abundance of young corals on natural substrates on shallow reef flats and reef slopes. Quadrant transects measuring 1x1 m were deliberately placed to observe coral juveniles at two research stations. Quadrant transects are placed along a 100-meter line transect. Visible juvenile corals are counted and identified at the genus or species level. The six types of coral juveniles identified are Favites flexuosa, Goniastrea favulus, Goniastrea aspera, Porites lobata, Montipora digitata and Montipora foliosa. The overall density of juveniles is low, ranging from 0.01-0.08 colonies m-2, with the highest density belonging to F. flexuosa and the lowest belonging to M. foliosa. The six species found showed a clustered distribution pattern, except for two species, namely Goniastrea aspera and M. foliosa, which showed a uniform distribution pattern. Coral juveniles have specific strategies depending on biology and environmental factors. This study revealed the distribution and composition of coral juveniles in intertidal areas as representative of dynamic ecosystems in coastal areas.
Co-Authors ANDIK ISDIANTO ANDIK ISDIANTO ANWAN RAHMAT ARDIANSYAH AULIA LANUDIA FATHAH BERLANIA MAHARDIKA PUTRI DADUK SETYAHADI DARMAWAN OKTO SUTJIPTO DESY SETYONINGRUM DIAN ALIVIYANTI GATUT BINTORO LISA NUR HIDAYAH M. AZUREA BAHRI LUTHFI NOVAR KURNIA WARDANA OKTIYAS MUZAKY LUTHFI ROSDIANTO ROSDIANTO SUPRIYADI SUPRIYADI TRI DJOKO LELONO WIRASTIKA ADHIHAPSARI