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All Journal Torani Journal of Fisheries and Marine Science Jurnal Ilmu Kelautan Spermonde
Syafyudin Yusuf
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Economics, Econometrics & Finance Environmental Science Social Sciences

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PERKEMBANGAN LARVA DALAM EMBRIOGENESIS KARANG Acropora HASIL PEMIJAHAN EX-SITU Syafyudin Yusuf; N P. Zamani; J. Jompa
Torani Journal of Fisheries and Marine Science Vol. 24 No. 2 (2014)
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (15.149 KB) | DOI: 10.35911/torani.v24i2.228

Abstract

Fertilization and larval development determine the coral population survivalof species, which has adifference characteristic of embryogenesis. This research wasaimed to compare the embryo and larvaldevelopment spawned in November 2011 in Grear Barrier Reef, Australia.Embryonic cellsdevelopment wereobserved in interval timesfrom one cell of egg tomulticellular stage (prawnchip), and larval developmentobserved from the prawnchip stageto the planulae.The results showed the development of embryos and larvaesignificantly differed between two species, i.e. embryos and larvae of Acropora millepora grew faster thanA.tenuis. The maximum size of planulae larvae of A. millepora (800-1000 μm) is biggerthan A. tenuis (650-900μm). Embryo and larvae development were different due to species variability, hence this reseach can beadapted for laboratory proccess of coral larvae nursery. Keywords: embryo, planulae, Acropora millepora, A. Tenuis
KEBERHASILAN REHABILITASI TERUMBU KARANG AKIBAT PERISTIWA BLEACHING TAHUN 2016 DENGAN TEKNIK TRANSPLANTASI Chair Rani; Akbar Tahir; Jamaluddin Jompa; Ahmad Faisal; Syafyudin Yusuf; Shinta Werorilangi; Arniati Arniati
Jurnal Ilmu Kelautan SPERMONDE VOLUME 3 NOMOR 1, 2017
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/jiks.v3i1.2127

Abstract

The purpose of this study was to analyze the succesfullnes use of two coral reef transplantation methods in the rehabilitation ofcoral reefs damaged by the phenomenon of bleaching in 2016 at the waters of Liukangloe Island, Bulukumba, South Sulawesi.In this study two methods were implemented, i.e. methods frame-spider and methods of nails-natural substrates, with 5 unitsas replication, respectively. A total of three kinds of branching corals weretransplanted, namely Acropora robusta, Poritescylindrica, and Pocillopora verrucosa. On each unit transplantation models, attached 6 coral fragments with branch length of5-12 cm for each kind of corals. A total of 3 fragments for each species of corals were labeled and coded for the survival rateand absolute growth monitoring. All five unit of experiments on each model are placed on two areas separately and placedrandomly with depths ranging from 3-4 m in the northern part of island. Observations survival rate and absolute growth of coraltransplant were conducted for every 2 weeks for 28 days by counting the dead coral fragment or missing and measure the lengthof transplant coral branch with a measuring ruler. The effectiveness of the two methods was analyzed based on the survival andgrowth of the absolute value of coral transplant. Survival rate were analyzed descriptively and the average values of absolutegrowth were analyzed by t-student. The use of frame-spider methods and methods of nails-natural substrates as effective inrehabilitating the coral reefs from bleaching phenomenon based on the parameters of survival and growth of Acropora robusta,Porites cylindrica, and Pocillopora verrucosaKeywords: Transplantation methods, coral reef, bleaching coral, Liukang Loe Island
THE OCCURRENCE OF JELLYFISH IN COASTAL WATERS OF MAKASSAR, SOUTH SULAWESI, INDONESIA Fitriani Fitriani; Rahmadi Tambaru; Abd Rasyid; Syafyudin Yusuf
Jurnal Ilmu Kelautan SPERMONDE VOLUME 6 NOMOR 2, 2020
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/jiks.v6i2.13721

Abstract

Jellyfish can be found in most coastal waters and their occurrence can be frequent during the day. This study aimed to detect the occurrence of jellyfish based on the oceanographic condition in the coastal waters of Makassar. Observations were conducted in July-September 2018 at three stations namely Port of Soekarno Hatta (Station 1), Port of Paotere (Station 2), and Port of Untia (Station 3). Jellyfish sampling was conducted in the morning, noon and afternoon, from three stations as aforementioned. Jellyfish samples were taken and identified at the Laboratory of Marine Biology, Faculty of Marine Science and Fisheries, Universitas Hasanuddin. Oceanographic conditions, i.e. temperature, salinity, transparency, and current velocity, were measured. All data were analyzed descriptively. It showed that the oceanographical conditions were in the suitable range for supporting jellyfish growth. Three genera of jellyfish were found, namely Aurelia, Porpita, and Aequorea. Aurelia was abundant in Station 1 and 2, whereas Porpita in Station 3. It also showed that during the afternoon, the jellyfish occurred more frequently.
ECO-PHYSIOLOGICAL STUDY OF PORITES LUTEA IN MARGINAL CORAL REEF HABITAT Mudasir Zainuddin; Jamaluddin Jompa; Syafyudin Yusuf; Muhammad Farid Samawi; Shinta Werolilangi
Jurnal Ilmu Kelautan SPERMONDE VOLUME 7 NOMOR 2, 2021
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/jiks.v7i2.14647

Abstract

Marginal coral reefs are located in a limited aquatic environment, causing coral organisms to live under threat and only certain species of coral are able to survive. Porites lutea is one species of coral that is able to live in normal and marginal coral reef conditions. The purpose of this study is to determine the ecology of Porites lutea, the physiological ability of Porites lutea's Productivity (P) and Respiration (R), coral reef habitat conditions and environmental factors that affect the distribution of Porites luteal in normal and marginal locations. This study used the belt transect method, measurement of coral colony volume, physiological productivity (P) and respiration (R), transect picture for substrate cover and coral reef conditions and CTD to measure environmental indicators such as temperature, salinity, turbidity, chlorophyll and DO. The results shows that the density of Porites coral is higher at normal coral reef locations (Pak Kasim), the highest volume range is 25-100 cm3, with the largest size in the 451-475 cm3 class. P/R values ​​is higher at normal coral reef sites, especially in reef slope areas. Coral reef habitat cover is dominated by abiotic components with poor coral reef conditions in marginal and normal environments. Water temperature was significantly different (P=0.039) between two normal and marginal locations with a range of 27.08 - 27.51 oC, Salinity was significantly different (P=0.145) with a salinity 33.44ppt at normal locations and 32.88 ppt at marginal locations. The chlorophyll and oxygen number was not significantly different between the two locations, the range of chlorophyll 0.03 – 0.15 mg/L and oxygen 2.49 – 5.23 mg/L. The turbidity factor was significantly different between locations (P=4.86E-07) where the marginal location in Sample was more turbid than the normal location in Pak Kasim. This study shows that there are differences between normal and marginal waters in environmental conditions and physiological reactions of Porites lutea, but this coral is able to survive to show their resilience to environmental stresses.  Keywords: Coral physio-ecology, Porites lutea, P/R ratio, marginal coral reefs.
Co-Authors Abd Rasyid Ahmad Faisal Akbar Tahir Arniati Arniati Chair Rani Fitriani Fitriani J. Jompa Jamaluddin Jompa Mudasir Zainuddin Muhammad Farid Samawi N P. Zamani Rahmadi Tambaru Shinta Werolilangi Shinta Werorilangi