Buku Pengelolaan Sumber Daya Perikanan Laut Berkelanjutan mengulas tentang pemanfaatan perikanan laut bagi generasi sekarang maupun bagi kepentingan generasi masa depan. Dengan kata lain, populasi ikan di laut harus dijaga agar tidak menurun akibat praktik penangkapan ikan yang dilakukan oleh manusia. Perikanan laut Indonesia memiliki potensi yang sangat besar sehingga dapat diandalkan sebagai sumber penting bahan pangan nasional, penghasil devisa negara dari hasil ekspor, penyedia lapangan kerja, serta menjadi sumber pendapatan domestik yang potensial. Jika dikelola dan dimanfaatkan secara optimal, tentu dapat membantu Indonesia dalam mencapai tujuanpembangunan nasional.Pembahasan aspek berkelanjutan menjadi salah satu kekuatan utama yang membuat buku ini bisa menjadi referensi bacaan yang patut diperhatikan oleh pembaca. Selain itu, bahasa yang ringan dan mudah dipahami juga membuat buku ini cocok untuk dibaca oleh berbagai kalangan masyarakat, seperti mahasiswa, akademisi, serta para pegiat lingkungan di komunitas lokalnya masing-masing. Selamat membaca!

Lamadi A, Paricahya AF, Iranawati F, Widodo MS, Wiadnya DGR. 2023. Genetic and morphological analysis of complex Giuris group species from Limboto Lake, Gorontalo Province, Indonesia. Biodiversitas 24: 5223-5233. Wallacea, especially Sulawesi, has a high endemism level with genuine biodiversity for mammals, reptiles, freshwater, and brackish fishes. Fish biodiversity in Limboto Lake, a great natural lake of Gorontalo Province, Indonesia, still needs to be scientifically explored, in contrast with its utilization for human activities that have anthropogenic effects on their ecosystem. Eleotridae is a taxonomical complex to their identification and distributed well in Sulawesi, including Limboto Lake with genus Giuris, known locally as hulu'u fish. Ambiguous identification in Giuris margaritaceus morphologically causing misidentification in molecular analysis, including using Cytochrome Oxidase subunit I (COI) region's information. Giuris specimens from Limboto Lake were collected from June 2022 until May 2023. From 662 individuals, length and weight relationship analysis results showed the population is mildly positive allometric (W= 0.11TL3.08). Meristic measurement result (D1 VI; D2 I.8-9; A I.9; P 14-16; V I.5; C 13-14) directing to G. margaritaceus with several small differences. COI analysis using six random specimens of the Limboto Lake population, comparing with four population from NCBI and BOLD System identified as G. margaritaceus or its synonym Ophieleotris aporos, indicating all populations is separated species from one another with P-distances more than 2% and made separated groups in phylogenetic tree and haplotype network. Misidentification issues in the Giuris margaritaceus taxonomical name for all five populations indicate they're potentially separated into five different species, with or without including Giuris margaritaceus, and potentially from currently described species or being new species in the future. Limboto Lake population made three haplotypes with high haplotype diversity (0.733) and low nucleotide diversity (0.001), indicating this population is facing high stressors and starting to grow. Understanding Giuris ambiguities could help governments, researchers, conservationists, and other stakeholders to mapping the ecological priorities.

Astuti SS, Hariati AM, Kusuma WE, Yuniarti A, Kurniawan N, Wiadnya DGR. 2023. Anthropogenic introduction of the Spotted Barb, Barbodes binotatus across the Wallace Line in western Sulawesi, Indonesia. Biodiversitas 24: 1713-1722. Barbodes binotatus (Valenciennes, 1842) is a native freshwater fish species in the western part of Indonesia, ranging from Sumatra, Borneo, Java, and Bali Islands to the east in the Wallacea region as far as Lombok and Sumbawa Islands. We reported the first record of its occurrence in other Wallacea regions, especially in the western part of Sulawesi Island. Thirty specimens were captured from the Salu Salibo and Lantora Rivers during the field survey. Morphological examinations and genetic confirmation by DNA barcoding approach provided accurate and reliable identification for B. binotatus. The DNA data suggested that the existence of B. binotatus in the western part of Sulawesi Island, across the Wallace Line, is due to human introduction. The human introduction of non-native species, such as B. binotatus, may cause a severe decline in native ichthyo-biodiversity in Sulawesi Island. We, therefore, suggest that further studies are important to mitigate the negative consequences of this supposedly introduced species on the island.

Wiadnya DGR, Kurniawan N, Hariati AM, Astuti SS, Paricahya AF, Dailami M, Kusuma WE. 2023. DNA barcoding of the most common marine ornamental fish species spilled over from a small-sized marine protected area, Bali Barat National Park, Indonesia. Biodiversitas 243: 47-54. Healthy coral reefs within a protected area may function as a source of recruitment to the surroundings through spill-over and export larvae. This study aims to generate a list of common species of marine ornamental fishes for the aquarium trade in Indonesia, mainly collected adjacent to Bali Barat National Park (BBNP). Lived-fish samples were collected from six fish collectors in two villages surrounding BBNP, Sumber Kima, Bali, and Bangsring, Banyuwangi. All species were checked by three active fishermen in both villages for confirmation of the most common species and not belonging to the target. A total of 82 separate groups out of 145 specimens were identified based on their morphological characters. All samples were then sequenced based on mitochondrial cytochrome oxidase subunit I (COI) gene amplification. The sequence read lengths for all the specimens were between 655 and 658 bp. All the findings from this DNA barcoding approach were in line with morphological species identification. Wrasses (Family: Labridae) were the most dominant (41 species) representing the group, followed by Pomacentridae (24 species), Acanthuridae (14 species), Pomacanthidae (14 species) and Gobiidae (10 species). Among the species, only green sergeant, Amblyglyphidodon batunaorum, belonged to the Vulnerable (VU) category based on IUCN criteria. The rest were either Least Concern (LC), Data Deficient (DD), or Not Evaluated (NE). It implied that no catch species were under fishing pressure except for the green sergeant. Considering a total of 28 target species by local fishermen (recorded in an earlier article), small-scale fishermen can easily catch more than 100 species in one trip. The results significantly contributed to the need to generate a list of common ornamental fish species specifically exported from Indonesia as an aquarium trade commodity.

Barbodes binotatus (Bleeker, 1859) is an endemic freshwater fish species that currently used for aquaculture. Good quality seed can be attained from cross-breed of parental stock from different geographical areas. This study aimed to distinguish morphological asymmetry of the species collected from three different rivers in Java: Sungai Tawang (East Java); Sungai Opak (Central Java); and Sungai Cisanggarung (West Java). Total 30 specimen were randomly sub-sampled from each river. Morphology, morphometry and meristic characters, based on 14 anatomical landmarks were measured and analyzed using Thin Plate Spline (TPSDIG), Symmetry-Asymmetry Geometric Analysis (SAGE) and Principal Component Analysis (PCA). Result of SAGE analysis showed that there were no significant asymmetries observed within, and between regions, respectively (p > 0.05). The result of PCA analysis however, showed qualitative differences in ratio between eye diameter (ED) versus head length (HL) (49%) and total length (TL) versus standard length (SL) (17%). Genetic (through DNA analysis) study need to be elaborated to see the differences more accurately.

Graphical Abstract Highlight Research Climate change impacts on coastal vulnerability. Low coastal vulnerability in Pangpang Bay, Banyuwangi Regency. Sustainability of small-scale capture fisheries based on vulnerability. Sustainable small-scale fisheries management. Abstract Teluk Pangpang is one of the water areas that has considerable potential for capturing fisheriesin Banyuwangi Regency, Indonesia. On the other hand, climate change impacts the vulnerability of coastal areas and coastal communities, especially small-scale fishers. This study aims to analyse the coastal vulnerability of Pangpang Bay and formulate a sustainable development plan for small-scale capture fisheries in Pangpang Bay. The research method used a descriptive method with a quantitative approach. Data collection techniques used geographic information systems and focus group discussions (FGDs). The data analysis used was Coastal Vulnerability Index (CVI) analysis with a spatial approach and Participatory Prospective Analysis (PPA). From the CVI analysis, through the assessment of geomorphological parameters, erosion/accretion, coastal slope, distance of plants from the beach, wave height, and average tide range, the level of coastal vulnerability of Teluk Pangpang is included in the low category. Meanwhile, the PPA analysis resulted in seven variables that most influence the sustainability of small-scale capture fisheries, namely climate change, coastal vulnerability, coral reef area and density, number of small-scale fishers, catches, human resources of small-scale fishers, and management of small-scale fisheries resources. Furthermore, the formulation of the sustainability scenario of small-scale capture fisheries in Pangpang Bay is to minimise the impact of climate change and conduct disaster mitigation, improve the human resources of small-scale fishers, and equalise perceptions as outlined in the commitment between all interested parties and small-scale fishing communities.