Neri Kautsari
Program studi Manajemen Sumberdaya Perairan, Universitas Samawa Jln bay pass sering, Sering, Kec Unter Iwes, Sumbawa, NTB 61213

Published : 8 Documents
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Journal : JURNAL PERIKANAN DAN KELAUTAN

Abundance, Biomass and Alginate Yield of Padina australis in Sumbawa Aquatic Kautsari, Neri; Ahdiansyah, Yudi
Jurnal Perikanan dan Kelautan Vol 6, No 1 (2016)
Publisher : JURNAL PERIKANAN DAN KELAUTAN

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Abstract

Padina australis is one of brown seaweed which mostly found in Sumbawa coastalarea. This seaweed has a potential as a raw material for alginate. We examinedabundance, biomass and alginate content of P. australis. Data were collectedmonthly from October 2012 to January 2013. Sampling was located in the aquaticof Sumbawa Regency by the number of stations is 3 stations. Station 1 was locatedin the aquatic of Labuhan Badas District, stations 2 and 3 were in the aquatic ofBungin Island. The highest value of biomass were found on May in station 1(33.98 g wet weight/m2) and the lowest values on station2 (3.12 g wet weight/m2).Alginate content showed the highest value of 6.65% on May in station 1 and thelowest value of 3.08% on July in station 2. The results showed that biomass andalginate contents of P. australis significantly influenced by interaction of physicaland chemical enviromental factors. P. australis grew in station 1 on May had thehighest biomass and alginate contents with characteristics of physical andchemical enviromental were hard substrate, current 0.40 m s-1, pH 8, temperature32°C and salinity 32 psu.
The physics and chemist parametric in Labuan Terata Waters, Sumbawa at transitions season Kautsari, Neri; Ahdiansyah, Yudi
Jurnal Perikanan dan Kelautan Vol 5, No 2 (2015)
Publisher : JURNAL PERIKANAN DAN KELAUTAN

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Abstract

Labuhan Terata Waters, Sumbawa, West Nusa Tenggara is one of the waters are very important for Labuhan Terata peoples because function for fisheries, but asses water quality especially transitions season is minus. The research objective was to assess physics and chemist parametric in the Labuhan Terata waters at transitions season. Oceanographic research in the Labuhan Terata waters have been carried out in May to June 2015. Current, brightness, temperature, dissolved oxygen (O2), acidity (pH), salinity, phosphate and nitrate parameters was measured directly from a layer surface at five research stations. The degree of temperature was measured thermometer Hg, acidity (pH) was measured with pH meter, dissolved oxygen was measured dissolved oxygen meter (DO meters), measurement of nutrients (phosphate and nitrate) concentration used spectrophotometry method. Result of the analysis showed that Labuhan Terata waters has current range from 0.39–0.93 m.dt-1, temperature of 28.50–30.00 °C, brightness 4.00–6.55 m, salinity of 30.50–31.33 psu, dissolved oxygen of 10.40-12.83 mg.L-1, pH of 8.04 – 8.70, phosphate of 0.05 – 0.75 mg.L-1 and nitrate 2.83 – 4.50 mg.L-1.