KEPADATAN, BIOMASSA DAN KANDUNGAN ALGINAT PADINA AUSTRALIS DI PERAIRAN SUMBAWA
ABSTRACT: Padina australis is
one of brown seaweed which mostly found in Sumbawa coastal area. 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 the lowest
value of 3.08% on July in station 2. The results showed that biomass and alginate
contents of P. australis significantly influenced by interaction of physicaland
chemical enviromental factors. P. australis grew in station 1 on May had the highest
biomass and alginate contents with characteristics of physical andchemical
enviromental were hard substrate, current 0.40 m s-1, pH 8, temperature 32°C
and salinity 32 psu.
Keywords: abundance, alginate,
biomass, padina australis
Penulis: Neri Kautsari
Kode Jurnal: jpperikanandd160139
