Nudibranchia Species, Water Quality and Substrate at Malalayang Dua Beach, Manado City
DOI:
https://doi.org/10.35800/jip.v13i1.60767Keywords:
Nudibranchia, Jenis-jenis, Kualitas air, Substrat, Malalayang DuaAbstract
This research used the exploration method, where a dive team of three people descended to a subtidal depth of 3 to 10 meters. The dive team surveyed this site for 40 minutes. Measurements of environmental parameters seawater temperature, salinity, pH, dissolved oxygen (DO), Total Dissolved Solids (TDS), and turbidity—were taken using a Horiba U-536 and pH meter. The results identified 11 species. The average pH was 8.24 at Station A (Gasoline Station) and 8.06 at Station B (Malalayang Beach Walk). The average seawater temperature was 28.69°C at Station A and 29.08°C at Station B. Turbidity was 0 NTU at both stations. The dose of dissolved oxygen (DO) was 6.77 mg/L at Station A and 6.92 mg/L at Station B. The salinity was 31.49 ppt at Station A and 31.35 ppt at Station B. Except for TDS, all environmental parameters support Nudibranchia's life. Total Dissolved Solids (TDS) values were 57.73 g/L at Station A and 57.33 g/L at Station B, respectively. These TDS values are unsuitable for benthic marine life since they do not fit their range tolerances. Nudibranchia attached on substrates variations from dead coral with algae (DCA), sponge, algae, and dead coral fragments. The most dominant substrate occupied by Nudibranchia was dead coral with algae (DCA).
Keywords: Nudibranchia, Species, Water Quality, Substrate, Malalayang Dua
Abstrak
Penelitian ini menggunakan metode eksplorasi, di mana tim penyelam yang terdiri dari tiga orang turun ke kedalaman subtidal 3 hingga 10 meter. Tim penyelam melakukan survei di lokasi ini selama 40 menit. Pengukuran parameter lingkungan seperti suhu air laut, salinitas, pH, oksigen terlarut (DO), Total Dissolved Solids (TDS), dan kekeruhan diambil menggunakan Horiba U-536 dan pH meter. Hasil penelitian mengidentifikasi 11 spesies. Rata-rata pH adalah 8,24 di Stasiun A (Gasoline Station) dan 8,06 di Stasiun B (Malalayang Beach Walk). Suhu air laut rata-rata adalah 28,69°C di Stasiun A dan 29,08°C di Stasiun B. Kekeruhan adalah 0 NTU di kedua stasiun. Oksigen terlarut (DO) adalah 6,77 mg/L di Stasiun A dan 6,92 mg/L di Stasiun B. Salinitas adalah 31,49 ppt di Stasiun A dan 31,35 ppt di Stasiun B. Kecuali untuk TDS, semua parameter lingkungan mendukung kehidupan Nudibranchia. Nilai Total Dissolved Solids (TDS) adalah 57,73 g/L di Stasiun A dan 57,33 g/L di Stasiun B. Nilai TDS ini tidak sesuai dengan toleransi kehidupan ‘benthic’ dasar. Dalam penelitian ini, diasumsikan bahwa konsentrasi TDS juga tidak sesuai untuk Nudibranchia. Nudibranchia menempel pada variasi substrat seperti dead coral with alga (DCA), spons, alga, dan pecahan karang mati. Substrat yang paling dominan ditempati oleh Nudibranchia adalah dead coral with alga (DCA).
Kata Kunci: Nudibranchia, Jenis-jenis, Kualitas Air, Substrat, Malalayang Dua.
References
Alfajri, Mubarak, & Mulyadi, A. (2017). Analisis Spasial Dan Temporal Sebaran Suhu Permukaan Laut Di Perairan Sumatera Barat. 4(1).
Amelia, J. M., Prasetia, I. N. D., & Setiabudi, G. I. (2022). Keanekaragaman Dan Kelimpahan Nudibranch Di Pantai Penimbangan Buleleng Bali. Journal Of Marine Research, 11(3), 399–408. Https://Doi.Org/10.14710/Jmr.V11i3.35005
Dayrat, B. (2006). A Taxonomic Revision Of Paradoris Sea Slugs (Mollusca, Gastropoda, Nudibranchia, Doridina). Zoological Journal Of The Linnean Society, 147(2), 125–238. Https://Doi.Org/10.1111/J.1096-3642.2006.00219.X
Febriani, S. (2022). Analisis Deskriptif Standar Deviasi. 2022, 6.
Gosliner, T., Behrens, D. W., & Valdés, Á. (2008). Indo-Pacific nudibranchs and sea slugs: A field guide to the world’s most diverse fauna. Sea Challengers Natural History Books. San Francisco, CA, USA, 425 pp.
Kaligis, F., Eisenbarth, J.-H., Schillo, D., Dialao, J., Schäberle, T. F., Böhringer, N., Bara, R., Reumschüssel, S., König, G. M., & Wägele, H. (2018). Second Survey Of Heterobranch Sea Slugs (Mollusca, Gastropoda, Heterobranchia) From Bunaken National Park, North Sulawesi, Indonesia—How Much Do We Know After 12 Years? Marine Biodiversity Records, 11(1), 2. Https://Doi.Org/10.1186/S41200-018-0136-3.
Kusuma, R. C., Ruswahyuni, & Subiyanto. (2013). Kelimpahan Nudibranchia Pada Karang Bercabang Dan Karang Batu Di Pantai Pancuran Belakang Pulau Karimunjawa Jepara. Management of Aquatic Resources Journal (MAQUARES), 2(3), 273–281. https://doi.org/10.14710/marj.v2i3.4224.
Mantiri, I. K. K., Lintang, R. A., Boneka, F. B., Wagey, B. Th., Wantasen, A., & Ompi, M. (2021). Keragaman Kelinci Laut (Nudibranchia) Di Perairan Laut Sulawesi Utara. Jurnal Pesisir Dan Laut Tropis, 9(2), 86. Https://Doi.Org/10.35800/Jplt.9.2.2021.35557
Marpaung, Y. S. P. H., Ompi, M., Manembu, I., Roeroe, K. A., Mamangkey, N. G. F., & Lumingas, L. (2019). Keragaman Substrat Bagi Nudibranch Di Selat Lembeh. Jurnal Pesisir Dan Laut Tropis, 7(2), 79. Https://Doi.Org/10.35800/Jplt.7.2.2019.24144.
Ompi, M. (2019). Nudibranchia (Gastropoda) Di Perairan Tropis Selat Lembeh, Sulawesi Utara: Ketahui Sebelum Katasrofe. 114 Hal.
Paulangan, Y. P., Supoyo, A. S., & Kalor, J. D. (2021). Indeks Keanekaragaman, Keseragaman Dan Dominasi Nudibranch Di Perairan Teluk Humbolt Kota Jayapura Papua Indonesia. 05.
Pungus, F., Kaligis, G., & Ompi, M. (2017). Status Nudibranchia Di Perairan Pantai Desa Teep Minahasa Selatan Dan Selat Lembeh Bitung. Jurnal Pesisir Dan Laut Tropis, 5(2), 39. Https://Doi.Org/10.35800/Jplt.5.2.2017.15919
Ramdan, E. S., Samad, A., & Khaeruddin. (2015). Upaya Meningkatkan Hasil Belajar Fisika Melalui Model Pembelajaran Berbasis Masalah Pada Peserta Didik Kelas Vii/I Smp Negeri 1 Sungguminasa. Vol 3, No 2.
Razak, F. ., Suzana, B. O. L., & Kapantow, G. H. M. (2017). Strategi Pengembangan Wisata Bahari Pantai Malalayang, Kota Manado, Sulawesi Utara. Agri-Sosioekonomi, 13(1a), 277. Https://Doi.Org/10.35791/Agrsosek.13.1a.2017.16180
Sari, L. N., & Aunurohim. (2013). Korelasi Komunitas Nudibranchia Dengan Komunitas Porifera Di Perairan Pasir Putih, Situbondo. Jurnal Sains Dan Seni Pomits Vol. 2, No.2, 2337-3520.
Shalihah, H. N., Purnomo, P. W., & Widyorini, N. (2017). Keanekaragaman Moluska Berdasarkan Tekstur Sedimen Dan Kadar Bahan Organik Pada Muara Sungai Betahwalang, Kabupaten Demak (Molluscs Diversity Based On Sediment Texture And Organic Matter Content In Betahwalang Estuary, Demak Regency). Saintek Perikanan : Indonesian Journal Of Fisheries Science And Technology, 13(1), 58–64. Https://Doi.Org/10.14710/Ijfst.13.1.58-64
Sudirman, N., & Husrin, S. (2014). Status Baku Mutu Air Laut untuk Kehidupan Biota dan Indeks Pencemaran Perairan di Pesisir Cirebon pada Musim Kemarau [Water Quality Standards for Marine Life and Pollution Index in Cirebon Coastal Area in the Dry Season]. Jurnal Ilmiah Perikanan dan Kelautan, 6(2), 149–154. https://doi.org/10.20473/jipk.v6i2.11300.
Windarto, F. C., Rumampuk, N. D. C., Mamuaja, J. M., Rampengan, R. M., Schaduw, J. N. W., & Manengkey, H. W. K. (2024). Study of Sea Water Quality in Malalayang Beach Walk Area. Jurnal Ilmiah Platax, 12(1), 194–200. https://doi.org/10.35800/jip.v12i1.54144.
Zahida, F., & Yuda, I. P. (2021). Keanekaragaman Dan Kelimpahan Nudibranchia Di Perairan Tulamben, Bali. 5.
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