Performance Analysis of the Seaweed (Kappaphycus alvarezii) Cultivation System Based on Culture Units: A Comparison of Longline and Floating Raft Methods

Yuli Andriani; Devina Khunti Nalibhrata

doi:10.55927/ijsmr.v4i6.52

Authors

Yuli Andriani Universitas Padjadjaran
Devina Khunti Nalibhrata Universitas Padjadjaran

DOI:

https://doi.org/10.55927/ijsmr.v4i6.52

Keywords:

systematic review, growth parameters, environmental factors, seedling quality, biomass production

Abstract

Kappaphycus alvarezii is a commercially important red seaweed cultivated in tropical countries. This systematic review compared longline and floating raft cultivation methods based on articles published between 2017 and 2026. Growth parameters ranged from 0.02% to 8.4% per day, with optimal growth at 3–6% per day. Protected floating raft systems (e.g., floating cages, horinets) produced higher biomass and survival due to reduced herbivory and wave damage. Longline systems achieved higher individual growth rates under calm, low-pest conditions. Depth (20–50 cm), current velocity (20–40 cm/s), and tissue-cultured seedlings were key productivity modulators. No single method is universally superior; selection depends on local environmental conditions. Practical recommendations for farmers are provided.

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