Diversity of Seagrass Along Two Coast Line Villages in The Regency of Biak Numfor: A Comparative Study
Agustina Aries Ardyanti
Master Program of Environmental Sciences, The University of Papua, Jl. Gunung Salju Amban, Manokwari 98314, Papua Barat, Indonesia.
Roni Bawole
Master Program of Environmental Sciences, The University of Papua, Jl. Gunung Salju Amban, Manokwari 98314, Papua Barat, Indonesia.
Yuanike Kaber *
Master Program of Environmental Sciences, The University of Papua, Jl. Gunung Salju Amban, Manokwari 98314, Papua Barat, Indonesia.
*Author to whom correspondence should be addressed.
Abstract
The Biodiversity Assessment of Seagrass Ecosystem in Orwer and Ambroben Waters, Biak Numfor Regency, Papua Province is very important for a baseline study of the ecosystem health of seagrass beds. The ecological function of seagrass ecosystems is to stabilize the seabed, provide food and habitat for other marine life, and maintain water quality. The research conducted aims to (1) determine the types of seagrasses, density, and percentage of seagrass cover in Orwer and Ambroben waters, and (2) find out the characteristics of aquatic environmental parameters that play an important role in determining the health status of seagrass meadow ecosystems. Based on the results of the research has been found as many as four types of seagrasses are in Orwer waters, namely Halodule pinifolia, Cymodocea rotundata, Thalassia hemprichii, and Halophila ovalis. In Ambroben waters have been found as many as 7 types of seagrass, namely Halodule pinifolia, Halodule uninervis, Cymodocea rotundata, Syringodium isoetifolium, Enhalus acoroides, Thalassia hemprichii and Halophila ovalis. The average density per seagrass species in Orwer waters is higher (2101 ind/m2) compared to Ambroben waters (1553 ind/m2). The percentage of seagrass ecosystem cover in Orwer is higher (94.44%) than in Ambroben waters (91.53%). The characteristics of aquatic health indicators for seagrass ecosystems in Orwer and Ambroben waters show almost the same range of values, namely temperatures ranging from 29.47-29.97, salinity 33.27-33.97 oo/oo, and pH 7.57-8.46, the dissolved oxygen parameter shows different values between the two waters. Oxygen levels in Orwer waters are 10.47-14.37 mg / L, while Oxygen levels in Ambroben waters are 7.47-11.10 mg / L. Based on these results, it shows that both waters are still included in the category of healthy waters and meet the quality standard criteria for life requirements for seagrass ecosystems.
Keywords: Biodiversity assessment, seagrass ecosystem, orwer waters, ambroben waters, biak regency, papua
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References
Azkab MH. Seagrass Inventory Guidelines. Oceana. 1999;XXIV(1):1-16.
Dewi CSU, Subhan B, Arafat D. Diversity, density and cover of seagrass species on Biak Island, Papua. Depik. 2017;6(2):122-27.
Fourqurean JW, Duarte CM, Kennedy H, Marba N, Holmer M, Mateo MA, et al. Seagrass Ecosystems As a Globally Significant Carbon Stock. Nature Geoscience. 2012;1-5. DOI: 10.1038/ngeo1477
Graha YI, Arthana IW, Karang IWGA. Seagrass Carbon Deposits in the Sanur Beach Area, Denpasar City. J Ecotrophic. 2015;10(1):46-53. DOI: 10.24843/EJES.2016.v10.i01.p08
Irawan A. Potential Carbon Reserves and Uptake by Seagrass Fields in the Northern and Eastern Parts of Bintan Island. Oceanology and Limnology in Indonesia. 2017;2(3):35-48.
Republic of Indonesia Government Regulation no. 22. 2021. Implementation of Environmental Protection and Management. Appendix VIII Sea Water Quality Standards.
Reef resilience; 2020. Available:https://reefresilience.org/id/blue-carbon/blue-carbon-introduction/blue-carbon-benefits.
Menlhk; 2017. Available:http://ditjenppi.menlhk.go.id/kcpi/index.php/inovasi/354-peran-blue-carbon-dalam-usaha-mitigation-change-iklim
Hartati R, Pratikto I, Pratiwi TN. Biomass and Carbon Stock Estimation in the Seagrass Ecosystem on Menjangan Kecil Island and Sintok Island, Karimunjawa Islands. Marina Oceanographic Bulletin. 2017;1(6):74-81. DOI: 10.14710/buloma.v6i1.15746
Khouw AS. Quantitative Methods and Analysis in Marine Bioecology. Center for Coastal and Marine Learning and Development. Jakarta; 2009.
Hutomo M, Nontji A. Seagrass Monitoring Guide. Critc Coremap CTI LIPI. Jakarta; 2014.
Duarte CM. Seagrass Nutrient Content. Mar. Eco. Prog. Ser. 1990;67:201- 207. DOI: 10.3354/meps067201
Viana IG, Moreira-Saporiti A, Teichberg M. Species-specific trait responses of three tropical seagrasses to multiple stressors: The case of increasing temperature and nutrient enrichment. Frontiers in Plant Science. 2020;11:571363.
Minister of Environment Decree No. 200. 2004. Standard Criteria for Damage and Guidelines for Determining the Status of Seagrass Grasslands. MENLH. Jakarta.
Ranahewa TH, Gunasekara AJM, Premarathna AD, Karunarathna SC, Jayamanne SC. A comparative study on the diversity of seagrass species in selected areas of Puttalam Lagoon in Sri Lanka. Journal of Oceanography and Marine Research. 2018;6:185.
Howard J, Hoyt S, Isensee K, Telszewski M, Pidgeon E, (eds.) Coastal Blue Carbon: Methods for Assessing Carbon Stocks and Emissions Factors in Mangroves, Tidal Salt Marshes and Seagrasses. Conservation International, Intergovernmental Oceanographic Commission of UNESCO, International Union for Conversation of Nature. Arlington, Virginia, USA; 2014.
Lakrum AWD, Orth RJ, Duarte CM. Seagrasses: Biology, Ecology and Conservation. Spinger. 2006;676. DOI: 10.1007/978-1-4020-2983-7
McKenzie LJ, Campbell SJ, Roder CA. Seagrass-Watch: Manual for Mapping and Monitoring Seagrass Resources by Community (citizen) Volunteers. 2nd Edition. (QFS, NFC, Cairns). 2003;100.
Odum EP. Fundamentals of Ecology. 3rd ed. Gadjah Mada University, Yogyakarta; 1998.
Ridho MG, Supriharyono S, Rahman A. Analysis of the relationship between distance and depth and seagrass community structure at Pancuran Beach, Karimunjawa Islands. Management of Aquatic Resources Journa (MAQUARES). 2018;7(4):352-360.
Rustam A, et al. Guidelines for Carbon Measurement in Seagrass Ecosystems. ITB Press. Bandung; 2019.
Sjafrie NDM, et al. Status of Indonesian Seagrass. Research Center for Oceanography-LIPI. Jakarta; 2018.
Supriyadi IH, Iswari MY, Suyarso. Preliminary study of the condition of seagrass meadows in the waters of Eastern Indonesia. J. Segara. 2018;14(3): 169-177. ISSN: 1907-0659. e-ISSN: 2461-1166.
Carter AB, Collier C, Lawrence E, Rasheed MA, Robson BJ, Coles,R. A spatial analysis of seagrass habitat and community diversity in the Great Barrier Reef World Heritage Area. Scientific Reports. 2021;11(1):22344.