Fitoplankton Penyebab Harmful ALgae Bloom (HAB) Pada Tambak Udang Vaname (Penaeus vannamei) Di Desa Lombang, Sumenep, Madura, Jawa Timur

Sari, Aisyah Dhuha Nita (2023) Fitoplankton Penyebab Harmful ALgae Bloom (HAB) Pada Tambak Udang Vaname (Penaeus vannamei) Di Desa Lombang, Sumenep, Madura, Jawa Timur. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Udang vaname (Penaeus vannamei) merupakan komoditas yang sering dibudidayakan menggunakan sistem intensif. Produksi udang di Indonesia yang menggunakan sistem intensif dapat menyebabkan kenaikan materi organik berupa nitrogen (N) dan fosfor (P) yang menimbulkan blooming fitoplankton. Ketika blooming fitoplankton didominasi oleh spesies yang mengandung racun serta dapat membahayakan nyawa manusia dan organisme akuatik lainnya, umumnya disebut harmful algal blooms (HABs). Oleh karena itu, penelitian ini dilakukan untuk mendekteksi spesies fitoplankton yang dapat menimbulkan HABs pada tambak udang vaname dengan sistem budidaya intensif. Tempat pengambilan sampel di Tambak Bergas, Desa Lombang, Kecamatan Batang – Batang, Kabupaten Sumenep, Madura, Jawa Timur. Sampel fitoplankton diambil menggunakan plankton net dan diberi formalin untuk preservasi, serta pengujian parameter kualitas air meliputi salinitas, nitrat, nitrit dan fosfat. Metode yang digunakan terdiri dari identifikasi morfologi dan perhitungan kelimpahan. Analisis data dilakukan dengan menggunakan uji regresi linier sederhana. Hasil penelitian ini pada bulan Januari di kolam B5, B6, B7 didapatkan Entomoneis punctulate memiliki kelimpahan tertinggi secara berurutan sebesar 1,25 × 103 sel/L, 9,03 × 102 sel/L, dan 1,04 × 103 sel/L. Sedangkan pada bulan Maret di kolam B5 dan B6 didapatkan Oocystis sp. memiliki kelimpahan tertinggi sebesar 1,61 × 103 sel/L dan 9,03 × 102 sel/L, Oscillatoria sp. di kolam B7 memiliki kelimpahan tertinggi sebesar 3,9 × 102 sel/L. Spesies yang berpotensi menimbulkan harmful algal bloom (HAB) yaitu Chaetoceros sp., Peridiniopsis sp., Oscillatoria sp. dan Lyngbya sp.
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Vaname Shrimp (Penaeus vannamei) are an often cultivated commodity using intensive system. Shrimp production in Indonesia which uses intensive system could cause a rise in organic matter such as nitrogen (N) and phosphor that causes phytoplankton blooms. When phytoplankton blooms are dominated by species that contains toxins and can also endanger human's and other aquatic organism lives, they are usually called harmful algal bloom (HABs). Hence, this research is done to detect phytoplankton species that can cause HABs on vaname shrimp aquaculture ponds that uses intensive system cultivation. Sampling location takes place in Bergas Pond, Lombang Village, District Batang - Batang, Suemenep, Madura, East Java. Phytoplankton sample is taken using plankton net and is given formalin for preservation, also water quality parameter testing covers salinity, nitrate, nitrite, and phosphate. Methods that are used consists of morphology identification and abundance calculation. Data analysis is done using simple linear regression. The result of this research is on January on ponds B5, B6, B7 Entomoneis punctulate was found to have the highest abundance in the order of 1,25 × 103 cell/L, 9,03 × 102 cell/L, dan 1,04 × 103 cell/L. While in March, ponds B5 and B6 Oocystis sp. has the highest abundance in order of 1,61 × 103 cell/L dan 9,03 × 102 cell/L, and in pond B7 Ooscillatoria sp. has the highest abundance at 3,9 × 102 cell/L. Species that has the potential to cause harmful algal blooms (HAB) are Chaetoceros sp., Peridiniopsis sp., Oscillatoria sp. and Lyngbya sp.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Aquaculture, HABs, Penaeus vannamei, Phytoplankton, Akuakultur, Fitoplankton
Subjects:	Q Science Q Science > QH Biology > QH541 Ecology
Divisions:	Faculty of Science and Data Analytics (SCIENTICS) > Biology > 46201-(S1) Undergraduate Thesis
Depositing User:	Aisyah Dhuha Nita Sari
Date Deposited:	07 Sep 2023 03:28
Last Modified:	07 Sep 2023 03:28
URI:	http://repository.its.ac.id/id/eprint/104235

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