Hasani, Qadar and Yusuf, Maulid Wahid and Caesario, Rachmad and Julian, David and Muhtadi, Ahmad (2022) Autoecology of Ceratium furcaand Chaetoceros didymusas potential harmful algal blooms in tourism and aquaculture sites at Teluk Pandan Bay, Lampung, Indonesia. Biodiversitas Journal of Biological Diversity, 23 (11). pp. 5670-5680. ISSN 1412-033X

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Abstract

Hasani Q, Yusup MW, Caesario R, Julian D, Muhtadi A. 2022. Autoecology of Ceratium furcaand Chaetoceros didymusas potential harmful algal blooms in tourism and aquaculture sites at Teluk Pandan Bay, Lampung, Indonesia.Biodiversitas 23:5670-5680.Harmful algal blooms (HABs) phenomenon has been observed around tourism and aquaculture sites in Teluk Pandan Waters, Lampung Bay. Thedominant potential HABs found in Teluk Pandan waters were Ceratium furcaand Chaetoceros didymus. This study aimed to analyze the relationship between the environmental physicochemical factors and the abundance of C. furcaand C. didymusas potential HABs. Phytoplankton samples were collected from four stations (Hurun Bay, Sidodadi Coastal Waters, Sari Ringgung Beach and Cikunyinyi Bay) during May-August 2022. Physical parameters (temperature, depth, brightness, current velocity and salinity), as well as chemical parameters (dissolved oxygen, pH, phosphate, nitrite, nitrate and ammonia) were all measured in conjunction with phytoplankton sampling. Canonical correlation analysis and multiple regression were used to predict the effect of environmental parameters on phytoplankton density. Blooms of C. furcawere found with the highest density at 5.417×106cells/L in Cikunyiyi Bay, while C. didymuspredominated in Hurun Bay (2.890×104cells/L), Sidodadi Coastal Waters(3.923×104cells/L) and Sari Ringgung Beach (3.531×104cells/L). The main factors influencing the increase in C. furcapopulation at Cikunyinyi Bay were pH, phosphate and nitrate. The increase in C. didymuspopulation at Sidodadi Coastal Waterswas affected by phosphate, nitrate and nitrite, while phosphate and nitrate influenced the increase in C. didymuspopulation at Sari Ringgung Beach. Potentially HABs density was found to be higher near intensive shrimp farming sites. The use of fertilizer and artificial feed in high quantities is thought to beresponsible for increased water eutrophication. Periodic monitoring and consistent determination of environmental carrying capacity for intensive shrimp farming activities are required to control HABs and ensure the sustainability of aquaculture and tourism activities in Teluk Pandan Waters.

Item Type:	Article
Subjects:	Q Science > Q Science (General) S Agriculture > SH Aquaculture. Fisheries. Angling
Divisions:	Fakultas Pertanian (FP) > Prodi Sumberdaya Akuatik
Depositing User:	Mr. Qadar Hasani
Date Deposited:	11 Jan 2023 08:12
Last Modified:	11 Jan 2023 08:12
URI:	http://repository.lppm.unila.ac.id/id/eprint/47727

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