The Effect of Carbon Absorption on Seaweed (Kappaphycus Alvarezii) With Vertical Rope Method at Different Depths

Irfani Baga; A. Puspa Sari Idris; Sri Wahidah; Mohamad Adnan Baiduri

doi:10.55927/modern.v4i3.96

Authors

Irfani Baga State Agricultural Polytechnic of Pangkajene Islands
A. Puspa Sari Idris State Agricultural Polytechnic of Pangkajene Islands
Sri Wahidah State Agricultural Polytechnic of Pangkajene Islands
Mohamad Adnan Baiduri State Agricultural Polytechnic of Pangkajene Islands

DOI:

https://doi.org/10.55927/modern.v4i3.96

Keywords:

Kappaphycus Alvarezii, Carbon, Water Quality, Planting Distance; Pollution

Abstract

This study aims to determine the most optimal planting depth for the growth and absorption of carbon by Kappaphycus alvarezii seaweed. The cultivation of the red variant of K. alvarezii was carried out using the longline method or long rope. Each seed weigh-ing 40 grams was tied to a rope that was stretched in sea waters with the help of buoys and weights to keep it in the water column. This study used a Completely Randomized Design (CRD) with four treat-ments, namely planting depths of 20 cm, 40 cm, 60 cm, and 90 cm from sea level, each with four replica-tions. The parameters observed included the absolute growth of K. alvarezii, carbon absorption capaci-ty, and water quality at the cultivation location. The results showed that the highest growth was achieved at a depth of 20 cm from sea level. However, despite the variation in depth, carbon absorption did not significantly affect the absolute growth of seaweed. In addition, no significant differences were found in carbon absorption values between depth treatments. This indicates that variations in planting depth do not affect carbon absorption capacity, possibly because carbon levels from atmospheric pollution at the research location are still relatively low

References

A. Mubarak, "Hubungan Gerakan Air dan Pertumbuhan Rumput Laut," Laporan Penelitian Balai Budidaya Laut Ambon, 1982.

B. Komarawidjaja, "Pemanfaatan Rumput Laut Sebagai Biofilter dalam Budidaya Perairan," Jurnal Riset Akuakultur, vol. 1, no. 2, pp. 185–190, 2005.

Badan Standardisasi Nasional (BSN), SNI No. 7572.2:2010 tentang Mutu Air untuk Budidaya Rumput Laut, Jakarta: BSN, 2010.

Booy, T., Sulistijo, dan N. Hasanuddin, "Pertumbuhan K. alvarezii pada Kedalaman Berbeda," Jurnal Budidaya Laut, vol. 15, no. 2, pp. 100–106, 2019.

Chung, I. K., Oak, J. H., Lee, J. A., Shin, J. A., Kim, J. G., & Park, K. S. (2011). Installing kelp forests/seaweed beds for mitigation and adaptation against global warming: Korean project overview. ICAP Workshop on Blue Carbon, 21–23.

D. B. Largo, M. Fukami, M. Kijima dan A. Ohno, "Growth and yield performance of various strains of Kappaphycus alvarezii cultivated at different depths," Journal of Applied Phycology, vol. 29, pp. 1125–1132, 2017.

Duarte, C. M., Wu, J., Xiao, X., Bruhn, A., & Krause-Jensen, D. (2017). Can seaweed farming play a role in climate change mitigation and adaptation? Frontiers in Marine Science, 4, 100. https://doi.org/10.3389/fmars.2017.00100

Erlania, "Pengaruh Kualitas Perairan Terhadap Pertumbuhan Rumput Laut K. alvarezii," Jurnal Akuakultur Indonesia, vol. 12, no. 3, pp. 215–222, 2013.

H. T. M. L. Hendra, "Evaluasi Potensi Penyimpanan Karbon pada Sedimen di Lahan Budidaya Rumput Laut," Jurnal Akuakultur dan Lingkungan, vol. 12, no. 1, pp. 21–29, 2025.

Hurtado, A. Q., Critchley, A. T., & Neish, I. C. (2019). Cultivation of Kappaphycus and Eucheuma: A practical guide. Nova Science Publishers, Inc.

M. Effendie, Metode Biologi Perikanan. Yogyakarta: Yayasan Dewi Sri, 1997.

M. G. Kordi, Budi Daya Rumput Laut. Yogyakarta: Graha Ilmu, 2010.

M. Yusran, S. Lestari dan I. Nurfadillah, "Pengaruh Kecerahan Perairan Terhadap Produktivitas Rumput Laut," Jurnal Akuakultur Tropis, vol. 10, no. 2, pp. 135–142, 2021.

Neish, I. C. (2008). Social and economic dimensions of carrageenan seaweed farming in the Philippines. FAO Fisheries and Aquaculture Proceedings, 12, 91–108.

P. Kaladharan, C. K. Asokan, P. V. Sarala dan K. V. Koya, "Carbon sequestration potential of seaweeds along the Indian coast," Marine Fisheries Information Service; Technical and Extension Series, no. 200, pp. 1–3, 2009.

R. Arbit, H. Fahmi dan A. K. Nugroho, "Analisis Kemampuan Penyerapan Karbon Rumput Laut," Jurnal Kelautan Tropis, vol. 22, no. 1, pp. 45–54, 2019.

R. M. Anggadiredja, S. Zatnika, M. Purwoto dan J. Istini, Rumput Laut: Pembudidayaan, Pengolahan dan Pemasaran Komoditas. Jakarta: Penebar Swadaya, 2006.

R. Yunus, S. Junaidi dan A. Muliana, "Pengaruh Kedalaman Terhadap Laju Pertumbuhan dan Kandungan Karagenan Kappaphycus alvarezii," Jurnal Perikanan Tropis, vol. 6, no. 1, pp. 40–46, 2018.

S. Atmadja, Faktor Lingkungan dalam Budidaya Laut. Jakarta: Balai Penelitian Perikanan Laut, 1979.

Serdiati, D. Arifin dan Y. Lestari, "Pengaruh Jarak Tanam dan Kedalaman Terhadap Pertumbuhan Rumput Laut," Jurnal Ilmu Kelautan, vol. 19, no. 1, pp. 1–8, 2010.

Zansuryani, "Potensi Karbon Biru pada Budidaya Rumput Laut di Indonesia," Jurnal Lingkungan dan Pesisir, vol. 5, no. 2, pp. 120–128, 2023.