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The Effects of Clove Oil in Color Changes and Zooxanthellae Density on Porites lobata Rahim, Sri Wahyuni; Nessa, M. Natsir; Trijuno, Dody D; Djawad, M. Iqbal
Journal of Indonesian Coral Reefs Vol 1, No 3 (2012)
Publisher : Journal of Indonesian Coral Reefs

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Destructive fishing such as using cyanide in capture of ornamental fish has caused damage to the coral reefs, this is suggested the use of clove oil which considered eco-friendly fishing. This study aims to analyze the changes of color, zooxanthellae density and mitotic index of coral Porites lobata after exposure to several concentrations of clove oil. Experimental design was a factorial design, which consists of six concentrations and five time treatments with 3 replication. Coral was placed into the 1.0x0.5x1.0 m aquarium that contains clove oil solution in different concentrations (control, 20, 30, 40, 50, and 60 ppm) for 5 min and then transferred to a tank containing clean seawater for 60 seconds and then removed to tanks for the recovery process. Observation was made everyday for coral color changes in 17 days period and on day 1, 5, 9, 13 and 17 for zooxanthellae density and mitotic index.  The results showed that the were no changes in Porites lobata colors until the 17th day after exposure to 20–60 ppm of clove oil and there was no significant difference in the zooxanthellae density and mitotic index of the Porites lobata on concentration variation, while zooxanthellae densities and mitotic index showed significant difference on time (day) variation. This suggested that exposure to clove oil at  a concentration of 20–60 ppm did not affect the color change, zooxanthellae density and mitotic index of Porites lobata.
Effectiveness of clove oil as anesthesia of Sergeant Major Abudefduf vaigiensis (Quoy & Gaimard, 1825) Amris, Ainun Ayu Utami; Rahim, Sri Wahyuni; Yaqin, Khusnul
Akuatikisle: Jurnal Akuakultur, Pesisir dan Pulau-Pulau Kecil Vol 4, No 1 (2020)
Publisher : Sekolah Tinggi Ilmu Pertanian Wuna

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29239/j.akuatikisle.4.1.21-28

Abstract

The increasing demand for live ornamental fish for export needs triggers fishermen to start looking for alternative fishing techniques that are more effective and efficient. The technique commonly used is the anesthetic technique using potassium cyanide. The use of cyanide has been banned by the government because of the many impacts it has caused such as the degradation of coral reef ecosystems, high non-target fish mortality and pollution of coastal areas. Clove oil is an alternative anesthetic which can be utilized with many advantages compared to cyanide. The sampled fish used was sergeant major (Abudefduf vaigiensis) as many as 15 fish with a size of 9-12 cm obtained from fishermen's catch using a scoop. The purpose of this study was to determine the optimal concentration of clove oil as an anesthetic of Sergeant Major Fish (Abudefduf vaigiensis) based on induction time  and recovery time. The experimental design used was a Completely Randomized Design (CRD). Analysis of the data used is One-Way ANOVA parametric analysis and Kruskal Wallis nonparametric analysis. The results obtained are five series of concentrations (20 ppm, 30 ppm, 40 ppm, 50 ppm, 60 ppm) which have a significant effect on induction time (20 ppm and 60 ppm) of sergeant major fish (Abudefduf vaigiensis) (P<0.05) The treatment of five concentration series (20 ppm, 30 ppm, 40 ppm, 50 ppm, 60 ppm) did not have a significant effect on the recovery time of the Sergeant Major Fish (Abudefduf vaigiensis) (P>0.05).
Effectiveness of clove oil as anesthesia of Sergeant Major Abudefduf vaigiensis (Quoy & Gaimard, 1825) Amris, Ainun Ayu Utami; Rahim, Sri Wahyuni; Yaqin, Khusnul
Akuatikisle: Jurnal Akuakultur, Pesisir dan Pulau-Pulau Kecil Vol 4, No 1 (2020)
Publisher : Sekolah Tinggi Ilmu Pertanian Wuna

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29239/j.akuatikisle.4.1.21-28

Abstract

The increasing demand for live ornamental fish for export needs triggers fishermen to start looking for alternative fishing techniques that are more effective and efficient. The technique commonly used is the anesthetic technique using potassium cyanide. The use of cyanide has been banned by the government because of the many impacts it has caused such as the degradation of coral reef ecosystems, high non-target fish mortality and pollution of coastal areas. Clove oil is an alternative anesthetic which can be utilized with many advantages compared to cyanide. The sampled fish used was sergeant major (Abudefduf vaigiensis) as many as 15 fish with a size of 9-12 cm obtained from fishermen's catch using a scoop. The purpose of this study was to determine the optimal concentration of clove oil as an anesthetic of Sergeant Major Fish (Abudefduf vaigiensis) based on induction time  and recovery time. The experimental design used was a Completely Randomized Design (CRD). Analysis of the data used is One-Way ANOVA parametric analysis and Kruskal Wallis nonparametric analysis. The results obtained are five series of concentrations (20 ppm, 30 ppm, 40 ppm, 50 ppm, 60 ppm) which have a significant effect on induction time (20 ppm and 60 ppm) of sergeant major fish (Abudefduf vaigiensis) (P<0.05) The treatment of five concentration series (20 ppm, 30 ppm, 40 ppm, 50 ppm, 60 ppm) did not have a significant effect on the recovery time of the Sergeant Major Fish (Abudefduf vaigiensis) (P>0.05).
Dinamika Populasi Ikan Bungo (Glossogobius giuris Hamilton–Buchanan, 1822) di Perairan Danau Tempe, Sulawesi Selatan Kudsiah, Hadiratul; Suwarni, Suwarni; Rahim, Sri Wahyuni; Tresnati, Joeharnani; Umar, Moh. Tauhid; Novriani, Andi
JSIPi (Jurnal Sains dan Inovasi Perikanan) (Journal of Fishery Science and Innovation) Vol 5, No 1 (2021): JURNAL SAINS dan INOVASI PERIKANAN
Publisher : Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33772/jsipi.v5i1.13790

Abstract

Penelitian ini bertujuan mengetahui dinamika populasi ikan  bungo   meliputi  kelompok  umur,  pertumbuhan, mortalitas,  laju  eksploitasi  dan  Yield  per  Recruitmen Relatif. Penelitian ini dilaksanakan pada bulan Mei sampai Juli  2020  di  Perairan  Danau  Tempe, Kabupaten wajo Sulawesi Selatan. Penentuan kelompok umur  dilakukan  menggunakan  metode  Bhattacharya dengan  bantuan  program  FAO-ICLARM  Fish  Stock Assesment Tools II (FISAT II), pertumbuhan menggunakan persamaan  Von  Bertalanffy,  mortalitas  alami  (M) menggunakan persamaan empiris Pauly, mortalitas total menggunakan persamaan Beverton dan Holt, mortalitas penangkapan (F) dengan persamaan Z= F+M, eksploitasi (E) menggunakan persamaan Baverton dan Holt dan yield per recruitment (Y/R’) menggunakan persamaan Beverton dan Holt.Hasil penelitian ikan bungo yang diamati berjumlah 923 ekor yang terdiri dari ikan tbungol jantan sebanyak713 ekor dan ikan bungo betina sebanyak 210. Kisaran panjang total mulai 100 mm – 266 mm yang terbagi dalam tiga kelompok umur dengan panjang masing-masing 129.54 mm, 177.41 mm dan 248.14 mm. Panjang asimtot (L∞) = 283.00 mm, koefisien pertumbuhan (K) = 0.60 dan umur teoritis (to) sebesar -3.9811 per tahun. Laju mortalitas total (Z) = 1,55 per tahun. Mortalitas alami (M) = 0,71 per tahun, mortalitas penangkapan (F) = 0,84, Eksploitasi (E) = 0,54 dan yield per recruitment (Y/R’) = 0.0620. Dengan demikian dapat disimpulkan bahwa ikan bungo yang berada di Perairan Danau Tempe memiliki pertumbuhan yang cepat dan diduga telah mengalami kelebihan tangkapan