Nor Sa'adah
Universitas Hang Tuah

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PREVALENSI PENYAKIT PADA KARANG KERAS DI PERAIRAN KALEDUPA, TAMAN NASIONAL WAKATOBI Ainul Rahman; Nor Sa'adah; Nirmalasari I. Wijaya; Ardhi Syam Bahroun
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 3 No 2 (2021): November
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v3i2.42

Abstract

Coral disease is a disturbance to coral health that causes physiological disturbances for coral biota. The emergence of coral disease is characterized by discoloration, damage to skeleton coral biota, to the loss of its tissueThis study aims to identify the type of coral disease and determine its prevalence in Kaledupa Waters, Wakatobi National Park, Southeast Sulawesi. This research was conducted in June 2021 in the Kaledupa Waters of Wakatobi National Park using the Belt Transect method with a size of 3 x 50 m at 3 observation points at a depth of 3-5 meters. Measurement of Oceanographic Physics-Chemistry parameters is carried out directly in the field. Identification of coral diseases was carried out descriptively based on the coral disease handbook and journal references. The results obtained found 4 types of coral disease that infect coral biota in the waters of Kaledupa Island, Wakatobi National Park, namely Black Band Disease (BBD), White Band Disease (WBD), White Pox and Ulcerative White Spot (UWS). As well as the results obtained for the overall prevalence of coral disease in the study site an average of 1.5%.
ANALISIS BAKTERI SIMBION MANGROVE AVICENNIA MARINA SEBAGAI ANTIFOULING Alifia Rizky Novitasari; Nor Sa'adah; Mahmiah
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 3 No 2 (2021): November
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v3i2.43

Abstract

The accumulation of biofouling on a substrate causes material loss and huge economics in the maintenance of aquaculture systems, ship hulls, seawater pipelines, coastal power plants, and other marine infrastructure. Prevention of the attachment of biofouling organisms using antifouling paints that have been developed and used for a long time. Antifouling paint contains chemical compounds (biocides). The most sensitive organisms to antifouling paint are gastropods and bivalve that cause endocrine disorders, larval disorders and shell malformations. This study aims to obtain antifouling bacteria through the isolation process of bacteria obtained from the bark Avicennia marina mangrove. The method was beginning with isolation of bacteria bark of Avicennia marina mangrove, identification of bacteria, and antifouling activity test. The results obtained from isolation of bacteria, there are 9 bacteria endophytic symbionts of the inner bark and 9 epiphytic bacteria of the outer bark. The inhibition zone test of the endophytic bacteria in the bark showed that there was no antifouling activity.