Sitepu, Sara Serina
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Performa Pertumbuhan Nannochloropsis sp. pada Berbagai Media Limbah Akuakultur Sitepu, Sara Serina; Rosmaiti, Rosmaiti; Haser, Teuku Fadlon; Febri, Suri Purnama
Jurnal Ilmiah Samudra Akuatika Vol 9 No 1 (2025): Jurnal Ilmiah Samudra Akuatika
Publisher : Fakultas Pertanian Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33059/jisa.v9i1.11097

Abstract

Nannochloropsis sp. is a microalga widely used as natural feed, particularly for rotifers, Artemia, and the larvae of fish and shrimp. During cultivation, this microalga requires essential nutrients such as nitrate and phosphate to support photosynthesis and growth. Aquaculture pond wastewater often contains organic matter that can cause environmental pollution but may also serve as a potential nutrient source for microalgal culture. This study aimed to evaluate the growth performance of Nannochloropsis sp. in different aquaculture wastewater media. The experiment was conducted from September to October 2021 using a Completely Randomized Design (CRD) with four treatments: P0 (control/seawater), P1 (vannamei shrimp pond wastewater), P2 (milkfish pond wastewater), and P3 (grouper pond wastewater), each with three replications. The results showed that P1 produced the highest growth performance, with cell density reaching 2.15 × 10⁶ cells/ml. These findings indicate that shrimp pond wastewater can be utilized as an alternative medium for microalgal cultivation while simultaneously supporting sustainable aquaculture waste management.