The growth of seaweed (<i>Eucheuma cottoni</i>) at different fertilizing doses in the waters of the village of Ghonebalano, Duruka District, Muna Regency, Indonesia

Abstract

The study was conducted aiming to test different fertilizer doses on the optimal growth rate of Eucheuma cottonii seaweed. The study was conducted from July to August 2016 in the waters of Ghonebalano Village, Duruka District, Muna Regency, Southeast Sulawesi. The study used NPK fertilizer with the composition of the element nitrogen (N) 15%, phosphate (P2O5) 15%, and potassium (K2O) 15%. The study used a Randomized Block Design (RBD) with 3 (three) levels of fertilizer doses and 3 (three) groups so that the number of experimental units was 9 (nine) units. While the treatments tested in the study were treatment A (without fertilizer/control), treatment B (fertilizer dose 1g/liter), and treatment C (fertilizer dose 2 g/liter). The results showed that the difference in fertilizer dose significantly affected the growth rate of Eucheuma cottonii seaweed. A dosage of 2 grams/liter of fertilizer gives the best rate of growth of Eucheuma cottonii seaweed while the water quality at the study site shows that it is still in the optimal range for the growth of Eucheuma cottonii seaweed.

Patterns of macro algae types in the intertidal zone of Malang Rapat waters, Gunung Kijang District, Bintan Regency, Riau Islands, Indonesia

“…Kesesuaian antara kedua faktor tersebut akan menentukan pertumbuhan makroalga termasuk kemampuan menempel pada tahap awal pertumbuhannya. Hal inilah yang menimbulkan perbedaan dalam kekayaan spesies dan sebaran makroalga pada suatu tempat dengan tempat lainnya (Kadi, 2005;Fendi et al, 2019).…”

Government Policy In Coastal Management And Small Island Muna Regency, Indonesia

“…Macro-management of natural resources becomes the authority of the central government and it is explained that the natural resources contained therein are managed by the state and aimed at the welfare of the people [19]. Damage to the mangrove environment in coastal areas has caused physical and natural damage to the coast resulting in reduced coastal conveyor limits as a result of damaging the suitability of the waterfront area and the monetary resilience of the coastal front network [20,21]. Socially and ecologically the irregularity between the level of asset use in the waterfront area and the losses incurred by excessive fishing conditions, resulting in the beach being damaged and it is an issue of water level improvement [22,23].The coastal area of Muna Regency is a strategic area that is growing rapidly as a potential buffer area in economic development by utilizing the potential of existing coastal resources.…”