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All Journal Biodiversitas Journal of Biological Diversity
EMMANUEL MANANGKALANGI
Department of Fisheries, Faculty of Fisheries and Marine Science, Universitas Papua. Jl. Gunung Salju, Manokwari 98314, West Papua, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Evaluation of seagrass beds as a foraging and nursery habitat based on the structure of the fish community in Nusmapi Island, West Papua, Indonesia EMMANUEL MANANGKALANGI; LUKY SEMBEL; SELVI TEBAIY; AGNESTESYA MANUPUTTY; MINA REGINA RUMAYOMI; PHILIPUS MUSYERI; DODDY SAWAKI; DAUD ORISSU; ABRAHAM WILLIAM MANUMPIL; YUANIKE KABER
Biodiversitas Journal of Biological Diversity Vol. 23 No. 10 (2022)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d231024

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Abstract. Manangkalangi E, Sembel L, Tebaiy S, Manuputty A, Rumayomi MR, Musyeri P, Sawaki D, Orissu D, Manumpil AW, Kaber Y. 2022. Evaluation of seagrass beds as a foraging and nursery habitat based on the structure of the fish community in Nusmapi Island, West Papua, Indonesia. Biodiversitas 23: 5539-5550. Seagrass beds are one of the ecosystems inhabited by various coastal aquatic fauna, including fish. However, information on the temporal role of this ecosystem for fish fauna, particularly diurnal and nocturnal, is still limited. Therefore, this study was conducted to describe daily variations in the fish species composition, their ecological index, developmental stages, and trophic groups in a seagrass bed on Nusmapi Isl., Manokwari. The species composition differed between day and night sampling periods based on the results obtained from 40 species of fish belonging to 21 families and 7 orders. Furthermore, fish species consisted of three trophic groups (omnivores, carnivores, and herbivores), with omnivores and carnivores dominating during the day and at night by 48.6% and 87.5%, respectively. Species found in seagrass beds majorly consisted of juvenile stage individuals (65.9%). Individual abundance varied from day to night and was mainly found among group-forming species, such as S. spinus, S. trilineata, S. punctatissimum, and M. pralinia. The index of diversity, evenness, and dominance at the two relatively similar sampling times described the overall stability of fish communities in seagrass beds. The results indicate that seagrass beds serve as foraging and nursery grounds for many fish species in coastal waters. In addition, the management and protection of fish biodiversity and coastal fishery resources are affected by the ecosystem function.
DNA barcoding of 19 Lutjanus species to support fisheries management in the Bird’s Head Seascape, Papua, Indonesia ABDUL HAMID A. TOHA; EMMANUEL MANANGKALANGI; BAYU PRANATA; MUHAMMAD DAILAMI; ANTAJALA R. MAULANA; DESTIA F. ARIYANI; MARTHIN D. T. GRATIA; RAKHMAD N. PRATAMA; SHINTA E. NURCAHYANI; SINDI MILANSAR; JENI JENI; RADWA F. H. PUTRI; ZETH PARINDING; ESIE M. WANGI; ANDI FAJERIANI WYRASTI; CORAZON E. M. P. MAYOR
Biodiversitas Journal of Biological Diversity Vol. 26 No. 10 (2025)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d261042

Abstract

Abstract. Toha AHA, Manangkalangi E, Pranata B, Dailami M, Maulana AR, Ariyani DF, Gratia MDT, Pratama RN, Nurcahyani SE, Milansari S, Jeni, Putri RFH, Parinding Z, Wangi EM, Wyrasti AF, Mayor CEMP. 2025. DNA barcoding of 19 Lutjanus species to support fisheries management in the Bird’s Head Seascape, Papua, Indonesia. Biodiversitas 26: 5287-5302. Red snapper species (family Lutjanidae) are economically important reef fishes traded at local, national, and international levels. However, species-level taxonomic resolution and conservation assessments remain limited in the Bird’s Head Seascape (BHS) region of West Papua, Indonesia. This study applied DNA barcoding of the mitochondrial cytochrome C Oxidase subunit I (COI) gene to assess Lutjanus species diversity and distribution within the Kaimana and Fakfak Marine Protected Areas (MPAs). A total of 77 specimens were successfully sequenced, resulting in a barcoding success rate of 100%. Nineteen species were identified: Lutjanus argentimaculatus, L. bengalensis, L. biguttatus, L. bohar, L. decussatus, L. ehrenbergii, L. erythropterus, L. fulviflamma, L. fulvus, L. gibbus, L. quinquelineatus, L. lemniscatus, L. malabaricus, L. monostigma, L. rufolineatus, L. russellii, L. sebae, L. timoriensis, and L. vitta. Thirteen species were recorded in Fakfak and twelve in Kaimana, with several species unique to each MPA. No genetic differences were observed among individuals within the same species. In contrast, the genetic distance between different species ranged from 2.8% to 19.3%. A total of nineteen monophyletic groups were recovered in the NJ phylogenetic trees, which were supported by high bootstrap values (91-100%). Lutjanus decussatus formed two subgroups in the phylogenetic trees. All identified species are currently listed as Least Concern (LC) by the IUCN, though population trends for most remain unknown, and some are declining. These findings demonstrate the utility of DNA barcoding for accurate species identification in data-poor tropical regions and provide a genetic baseline for future monitoring efforts. The confirmed presence of commercially exploited and potentially declining species underscores the need for site-specific fishery assessments and adaptive management strategies. Integrating molecular tools into routine monitoring can enhance enforcement of species-based catch limits and support sustainable fisheries management within Indonesia’s MPAs.
Co-Authors ABDUL HAMID A. TOHA ABRAHAM WILLIAM MANUMPIL AGNESTESYA MANUPUTTY ANDI FAJERIANI WYRASTI ANTAJALA R. MAULANA BAYU PRANATA CORAZON E. M. P. MAYOR DAUD ORISSU DESTIA F. ARIYANI DODDY SAWAKI ESIE M. WANGI JENI JENI LUKY SEMBEL MARTHIN D. T. GRATIA MINA REGINA RUMAYOMI MUHAMMAD DAILAMI PHILIPUS MUSYERI RADWA F. H. PUTRI RAKHMAD N. PRATAMA SELVI TEBAIY SHINTA E. NURCAHYANI SINDI MILANSAR YUANIKE KABER ZETH PARINDING