Reef fish diversity in the Legon Bajak Port, Kemujan Island, Karimunjawa National Park

  • Siti Lathifah Maulany Sunan Kalijaga State Islamic University
  • Ardyan Pramudya Kurniawan


Karimunjawa National Park provides substantial reef fish resources, leading to higher market demand for reef fish production. This study aims to determine the diversity of reef fish, particularly in regions where fishing boats dock, specifically in Legon Bajak Port, Kemujan Island, Karimunjawa National Park, Jepara, Central Java. The findings of this investigation should enrich previous studies. The study was conducted on the right and left sides of the Legon Bajak Port. The visual count of belt transects was used to obtain data on reef fish. The study results obtained the number of reef fish at the Legon Bajak Port was 2769 individuals/500 m2 on the right and 1809 individuals/500 m2 on the left side, representing 40 species, 26 genera, and 13 families. Istigobius rigilius had the largest density of individuals, with 233 individuals/500 m2. The fish diversity index (H') value on the right side of the Legon Bajak Port was 3.24, which includes the high category, and on the left side was 2.89, which includes the medium category. The dominance index (D) was between 0.05 and 0.06 (low), while the uniformity index (E) was between 0.74 and 0.83 (unstable in a stable community).

Author Biography

Siti Lathifah Maulany, Sunan Kalijaga State Islamic University
Study Program of Biology


Balai Taman Nasional Karimunjawa. 2020. Statistik Balai Taman Nasional Karimunjawa tahun 2020. Semarang: Balai Taman Nasional Karimunjawa Indonesia.

Blom EL, Mück I, Heubel K, Svensson O. 2016. Acoustic and visual courtship traits in two sympatric marine Gobiidae species–Pomatoschistus microps and Pomatoschistus minutus. Environmental Biology of Fishes. vol 99: 999–1007. doi:

Muthiadin C, Aziz IR, Hasyimuddin H, Nur F, Sijid SA, Azman S, Hadiaty RK, Alimuddin I. 2020. Penja fish (Genus: Sicyopterus) from Karama River, West Sulawesi, Indonesia: Growth pattern and habitat characteristics. Biodiversitas Journal of Biological Diversity. vol 21(10): 4959-4966. doi:

Doll PC, Munday PL, Bonin MC, Jones GP. 2021. Habitat specialisation and overlap in coral reef gobies of the genus Eviota (Teleostei: Gobiidae). Marine Ecology Progress Series. vol 677: 81–94. doi:

Duarte CM, Agusti S, Barbier E, Britten GL, Castilla JC, Gattuso JP, Fulweiler RW, Hughes TP, Knowlton N, Lovelock CE, Lotze HK. Predragovic M, Poloczanska E, Roberts C, Worm B. 12020. Rebuilding marine life. Nature. vol 580: 39–51. doi:

Edgar G, Ceccarelli D, Stuart-Smith RD, Cooper AT. 2017. Reef Life survey assessment of coral reef biodiversity in the North-West Commonwealth Marine Reserves Network. Hobart: Reef Life Survey Foundation Incorporated.

English S, Wilkinson C, Baker V. 1997. Survey manual for tropical marine resource. 2nd ed. Townsville: Australian Institute of Marine Science. p 408.

Forrester GE. 2020. The influence of boat moorings on anchoring and potential anchor damage to coral reefs. Ocean & Coastal Management. vol 198: 1–7. doi:

Franco AC, dos Santos LN. 2018. Habitat-dependent responses of tropical fish assemblages to environmental variables in a marine-estuarine transitional system. Estuarine, Coastal and Shelf Science. vol 211: 110–117. doi:

Froese R, Pauly D. 2020. Family Gobiidae - Gobies. Makati: FishBase.

Johansen JL, Allan BJM, Rummer JL, Esbaugh AJ. 2017. Oil exposure disrupts early life-history stages of coral reef fishes via behavioural impairments. Nature Ecology & Evolution. vol 1(8): 1146–1152. doi:

Kementerian Kelautan dan Perikanan. 2021. Taman Nasional Laut Karimun Jawa. Jakarta: Direktorat Konservasi dan Keanekaragaman Hayati Laut, Direktorat Jenderal Pengelolaan Ruang Laut, Kementerian Kelautan dan Perikanan Republik Indonesia.

Krebs CJ. 1989. Ecological methodology. New York: Harper and Row Publishers Inc. p 765.

McEachran JD, Fechhelm JD. Labridae. In Fishes of the Gulf of Mexico, vol 2. Austin: University of Texas Press. pp 504-526. doi:

Messmer V, Jones GP, Munday PL, Holbrook SJ, Schmitt RJ, Brooks AJ. 2011. Habitat biodiversity as a determinant of fish community structure on coral reefs. Ecology. vol 92(12): 2285–2298. doi:

Mulyadi M, Sumaryati S, Rohman EA, Afendi N, Mardiko MSJE. 2012. Panduan identifikasi jenis ikan karang Di Karimunjawa. Semarang: Karimunjawa National Park. p 98.

Odum EP. 1953. Fundamentals of ecology. Philadelphia: W.B.Saunders Company. p 383. doi:

Pambudi DS, Nuryanto A, Prabowo RE. 2019. Phylogeny of marine ornamental fish members of Labridae from the South Coast of West Java, Indonesia. Biogenesis: Jurnal Ilmiah Biologi. vol 7(2): 139–147. doi:

Parenti P, Randall JE. 2011. Checklist of the species of the families Labridae and Scaridae: an update. Smithiana. vol 13: 29–43.

Putra AG, Ruswahyuni R, Widyorini N. 2015. Hubungan kelimpahan ikan dan tutupan karang lunak dengan kedalaman yang berbeda di Pulau Menjangan Kecil Taman Nasional Karimunjawa, Jawa Tengah. Management of Aquatic Resources Journal (MAQUARES). vol 4(2): 17–27. doi:

Sambali H, Yulianda F, Bengen DG, Kamal MM. 2014. Analisis kelembagaan pengelola Taman Nasional Laut Kepulauan Seribu. Jurnal Sosial Ekonomi Kelautan dan Perikanan. vol 9(1): 105–113. doi:

Setiawan F. 2010. Panduan lapangan identifikasi ikan karang dan invertebrata laut. Manado: Wildlife Concervation Society. p 350.

Setiawan H. 2013. Ancaman terhadap populasi kima (Tridacnidacna sp.) dan upaya konservasinya Di Taman Nasional Taka Bonerate. Buletin Eboni. vol 10(2): 137–147. doi:

Souza AT, Ilarri MI, Medeiros PR, Sampaio CLS, Floeter SR. 2011. Unusual colour patterns of territorial damselfish (Pomacentridae: Stegastes) in the south-western Atlantic. Marine Biodiversity Records. vol 4: 1–5. doi:

Sugianti Y, Mujiyanto M. 2013. Biodiversitas ikan karang di perairan Taman Nasional Karimunjawa, Jepara. Bawal Widya Riset Perikanan Tangkap. vol 5(1): 23–31. doi:

Tatom‐Naecker TM, Westneat MW. Burrowing fishes: kinematics, morphology and phylogeny of sand‐diving wrasses (Labridae). Journal of Fish Biology. vol 93(5): 860–873. doi:

Teichert N, Keith P, Valade P, Richarson M, Metzger M, Gaudin P. Breeding pattern and nest guarding in Sicyopterus lagocephalus, a widespread amphidromous Gobiidae. Journal of Ethology. vol 31(3): 239–247. doi:

Tyler EHM, Manica A, Jiddawi N, Speight MR. 2011. A role for partially protected areas on coral reefs: maintaining fish diversity?. Aquatic Conservation: Marine and Freshwater Ecosystems. vol 21(3): 231–238. doi:

Tynyakov J, Rousseau M, Chen M, Figus O, Belhassen Y, Shashar N. 2017. Artificial reefs as a means of spreading diving pressure in a coral reef environment. Ocean & Coastal Management. vol 149: 159–164. doi:

Ulfah I, Yusuf S, Rappe RA, Bahar A, Haris A, Tresnati J, Tuwo A. 2020. Coral conditions and reef fish presence in the coral transplantation area on Kapoposang Island, Pangkep Regency, South Sulawesi. IOP Conference Series: Earth and Environmental Science. vol 473: 1-11. doi:

Villanoy C, David L, Cabrera O, Atrigenio M, Siringan F, Aliño P, Villaluz M. 2012. Coral reef ecosystems protect shore from high-energy waves under climate change scenarios. Climatic Change. vol 112(2): 493–505. doi:

Werding B, Christensen B, Hiller A. 2016. Three way symbiosis between a goby, a shrimp, and a crab. Marine Biodiversity. vol 46(4): 897–900. doi:

Wickel J, Pinault M, Fricke R. 2016. First record of a western Mascarene endemic, Halichoeres pelicieri (Actinopterygii: Perciformes: Labridae), from Reunion Island. Acta Ichthyologica et Piscatoria. vol 46(1): 33–35.

Wilson B. 2014. Kimberley marine biota. History and environment. Records of the Western Australian Museum Supplement. vol 84: 1–18. doi:

Yuliana E, Fahrudin A, Boer M, Kamal MM, Pardede ST. 2016. The effectiveness of the zoning system in the management of reef fisheries in the marine protected area of Karimunjawa National Park, Indonesia. Aquaculture, Aquarium, Conservation & Legislation. vol 9(3): 483–497.

Yusuf DN, Prasetyo LB, Kusmana C, Machfud M. 2017. Detection of mangrove disruption due to anthropogenic factor in protected area using GIS model: A case study in Konawe Selatan, Southeast Sulawesi. International Journal of Sciences: Basic and Applied Research (IJSBAR). vol 31: 31–42.

Yusuf M. 2013. Kondisi terumbu karang dan potensi ikan di perairan Taman Nasional Karimunjawa, Kabupaten Jepara. Buletin Oseanografi Marina. vol 2(2): 54–60. doi:

Research Articles
Abstract viewed = 87 times