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Dynamics of Temperature and Chlorophyll-a Changes on the Distribution of Anchovies (Stelophorus spp) in Spermonde Coastal Waters, Pangkep Safruddin, safruddin; Mukti Zainuddin, Mukti; Joeharnani Tresnati, Joeharnani
Journal IPTEKS Pemanfaatan Sumberdaya Perikanan Vol 1, No 1 (2014)
Publisher : Journal IPTEKS Pemanfaatan Sumberdaya Perikanan

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Abstract

The distribution of anchovies (Stelophorus spp) in the Spermonde coastal waters, Pangkep, was studied from satellite remotely sensed environment and catch data, using Geographic Information Systems (GIS) and Generalized Additive Model (GAM). The goal of this preliminary study was to investigate the relationship between sea surface temperature (SST) and sea surface chlorophyll-a concentration (SSC), and anchovies distribution. To describe their relationship, SST and SSC derived from Aqua/MODIS satellite were overlain with the positions of experimental fishing by local fishermen’s lift net (“Bagan perahu”). The experimental lift net operations were conducted in April to May 2008. The findings of this study showed that most of the anchovies distribution occurred in the coastal area. Anchovies distribution tended to be highest in the specific temperature of 28.8 - 29.3oC and chlorophyll-a of 1.5 ‒2.5 mg.m-3. Furthermore, the SST and SSC in the coastal waters of Spermonde play a great role in determining the variability of the anchovies quantitative distribution in the study area. The results were supported by GAM prediction.  Due to lack of robust data, there is no detailed information on the optimum habitat preference of anchovies. Future work is needed to reveal the preferred habitat of anchovies with the consideration of more oceanographic parameters.
Beberapa Aspek Reproduksi Ikan Layang Deles (Decapterus macrosoma BLEEKER, 1841) yang Tertangkap dengan Bagan Perahu di Perairan Kabupaten Barru, Sulawesi Selatan Dahlan, Muh Arifin; Andy Omar, Sharifuddin Bin; Tresnati, Joeharnani; Nur, Muhammad; Umar, Moh. Tauhid
Jurnal IPTEKS Pemanfaatan Sumberdaya Perikanan Vol 2, No 3 (2015)
Publisher : Jurnal IPTEKS Pemanfaatan Sumberdaya Perikanan

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Abstract

Ikan layang merupakan salah satu komoditas ekonomis penting di Sulawesi Selatan. Penelitian ini bertujuan untuk mengetahui beberapa aspek biologi reproduksi ikan layang meliputi nisbah kelamin, Indeks Kematangan Gonad (IKG), Tingkat Kematangan Gonad (TKG), ukuran pertama kali matang gonad dan fekunditas ikan layang deles yang tertangkap menggunakan bagan perahu di perairan Kabupaten Barru. Pengambilan sampel dilakukan pada bulan Juni hingga Oktober 2013 di Kelurahan Sumpang Binangae yang merupakan fishing-base nelayan penangkap ikan layang deles. Analisis sampel dilakukan di Laboratorium Biologi Perikanan, Jurusan Perikanan, Universitas Hasanuddin, Makassar. Nisbah kelamin dianalisis menggunakan uji chi-kuadrat, TKG ditentukan secara morfologi, IKG dihitung menggunakan metode perhitungan (Johnson, 1971), ukuran pertama kali matang gonad diperoleh dari ukuran pertama pada TKG III dan fekunditas menggunakan metode gravimetric. Ikan layang deles yang diperoleh selama penelitian sebanyak 213 ekor, dengan nisbah kelamin jantan : betina adalah 2,33 : 1,00.  Secara statistik, nisbah kelamin ikan jantan dan betina bukan 1 : 1 atau dalam keadaan tidak seimbang (α = 0,05 ; X2 hitung = 59,6082;  X2 tabel = 9.488; db = 4).  Ikan layang deles pada perairan Barru diperoleh TKG I sampai V dengan IKG 0.0503– 4.4667 % untuk ikan jantan dan 0.2501 – 7.6677 % untuk ikan betina. Persentase ikan layang deles matang gonad tertinggi ditemukan pada bulan Juli dan September, baik untuk ikan jantan maupun ikan betina, sementara pada bulan Oktober ikan yang tertangkap didominasi ikan yang belum matang gonad. Ikan layang deles jantan matang gonad pada ukuran 142 mm dan betina pada ukuran 128 mm dengan fekunditas berkisar antara 1.512 - 34.875 butir.
Dinamika Perubahan Suhu dan Klorofi-a Terhadap Distribusi Ikan Teri (Stelophorus sp) di Perairan Pantai Spermonde, Pangkep Safruddin, Safruddin; Zainuddin, Mukti; Tresnati, Joeharnani
Jurnal IPTEKS Pemanfaatan Sumberdaya Perikanan Vol 1, No 1 (2014)
Publisher : Jurnal IPTEKS Pemanfaatan Sumberdaya Perikanan

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Abstract

The distribution of anchovies (Stelophorus spp) in the Spermonde coastal waters, Pangkep, was studied from satellite remotely sensed environment and catch data, using Geographic Information Systems (GIS) and Generalized Additive Model (GAM). The goal of this preliminary study was to investigate the relationship between sea surface temperature (SST) and sea surface chlorophyll-a concentration (SSC), and anchovies distribution. To describe their relationship, SST and SSC derived from Aqua/MODIS satellite were overlain with the positions of experimental fishing by local fishermen’s lift net (“Bagan perahu”). The experimental lift net operations were conducted in April to May 2008. The findings of this study showed that most of the anchovies distribution occurred in the coastal area. Anchovies distribution tended to be highest in the specific temperature of 28.8 - 29.3C and chlorophyll-a of 1.5 ‒2.5 mg.m . Furthermore, the SST and SSC in the coastal waters of Spermonde play a great role in determining the variability of the anchovies quantitative distribution in the study area. The results were supported by GAM prediction.  Due to lack of robust data, there is no detailed information on the optimum habitat preference of anchovies. Future work is needed to reveal the preferred habitat of anchovies with the consideration of more oceanographic parameters.
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
Perubahan Jaringan Hati Ikan Pari Kembang ( DASYATISKUHLI) Akibat Merkuri (HG) Joeharnani Tresnati; Dody Dharmawan Trijuno; Iqbal Djawad
Torani Journal of Fisheries and Marine Science Vol. 24 No. 1 (2014)
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (15.147 KB) | DOI: 10.35911/torani.v24i1.115

Abstract

Blue Spotted Ray (Dasyatis kuhlii) as the demersal organisms has a lot of accumulation of pollutants in the water that settles to the bottom. This study was conducted to look at the liver tissue alteration of Blue Spotted Ray caused by contamination of mercury (Hg). Performed on 5 tanks. Tank A as a control, tank B with concentration 0.025  ppm,  tank  C  with  concentration  of  0.05  ppm,  tank  D  with concentration  0.1  ppm  and  tanks  E  with concentration  0.2  ppm.  The  result  is  alteration  on  the  liver  tissue  in  the  form  of  atrophy,  cloudy  swelling, vacuolization degeneration and even necrosis or death of liver tissue already. The alteration can reduce and eveneliminate the function of the liver as a toxin absorbent and can lead to death.
NISBAH KELAMIN DAN UKURAN PERTAMA KALI MATANG GONAD IKAN LAYANG DELES (Decapterusmacrosoma BLEEKER, 1841) DI PERAIRAN TELUK BONE, SULAWESI SELATAN Muh. Arifin Dahlan; Sharifuddin Bin Andy Omar; Joeharnani Tresnati; Moh Tauhid Umar; Muhammad Nur
Torani Journal of Fisheries and Marine Science Vol. 25 No. 1 (2015)
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (15.149 KB) | DOI: 10.35911/torani.v25i1.260

Abstract

This research was conducted to investigate the sex ratio and the first gonadal maturity size of mackerel fish(Decapterus macrosomas Bleeker 1841). Samples were taken from June to October 2013 in the sub-district ofPanyula, District of East Riattang, in Bone region. Sample analysis was conducted at the Fisheries biologylaboratory, Department of Fisheries, Hasanuddin University, Makassar. Sex ratio was analyzed by using chiquadrat-testwhereas the first gonadal maturity size was obtained from the first size of the third-gonadal-maturitystage. There were 782 fish collected with male to female ratio 1,02:1,00. Statistically, the sex ratio from Bone waterswas 1:1, in other words, it is still in a balance condition. The male fish reached gonadal maturity stage at the size of195 mm, whereas the female at 210 mm. Keywords: sex ratio, gonadal maturity size, Mackarel fish, Bone strait.
DINAMIKA POPULASI KERANG HIJAU (Perna viridis) DI PERAIRAN MANDALLE, KABUPATEN PANGKAJENE DAN KEPULAUAN Suwarni Suwarni; Joeharnani Tresnati; Firdawati Firdawati; Muhammad Nur
Torani Journal of Fisheries and Marine Science Vol. 25 No. 2 (2015)
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (15.153 KB) | DOI: 10.35911/torani.v25i3.2611

Abstract

Kerang hijau (Perna viridis) merupakan salah satu komoditas perikanan yang potensial untuk dikembangkan.Penelitian ini bertujuan untuk menduga parameter dinamika populasi kerang hijau meliputi kelompok umur,pertumbuhan, mortalitas, laju eksploitasi dan yield per recruitment. Penelitian ini dilaksanakan pada bulanApril sampai Mei 2015 di Perairan Mandalle, Kabupaten Pangkep. Analisis sampel dilakukan di LaboratoriumBiologi Perikanan, Universitas Hasanuddin. Penentuan kelompok umur dan laju pertumbuhan menggunakanmetode Bhattacharya dengan bantuan program Fish Stock Assesment (FISAT II). Penentuan mortalitas total (Z)menggunakan metode Beverton dan Holt, mortalitas alami (M) menggunakan metode Ricker dan Evanof,penentuan laju eksploitasi (E) dan yield per recruitment (Y/R) menggunakan persamaan Beverton dan Holt.Hasil penelitian ini diperoleh 1418 ekor kerang hijau dengan kisaran panjang cangkang mulai dari 19,6 hingga78,2 mm, terdiri dari 5 kelompok umur dengan panjang rataan masing-masing yaitu panjang rataan dari setiapkelompok umur kerang hijau : 31,46 mm, 39,85 mm, 50,13 mm, 58,89 mm dan 69,37 mm. Koefisien lajupertumbuhan (K) = 0,42 per bulan, L∞ = 82,75 mm, t0 = -0,5289 per bulan. Mortalitas total (Z) = 3,61 perbulan, mortalitas alami (M) = 1,147 per bulan, mortalitas penangkapan (F) = 2,46 per bulan. Eksploitasi (E) =0,6. Hal tersebut menunjukkan kerang hijau di Perairan Mandalle mengalami tingkat eksploitasi tinggi (overfishing), serta nilai Yield per Recruitment (Y/R) 0,0169 gram/recruitment.Kata kunci : Dinamika populasi, kerang hijau, Perna viridis, Pangkajene dan Kepulauan
Size structure, age groups and growth of squid Loligo pealeii in the waters of Barru Regency, South Sulawesi Joeharnani Tresnati; Achmar Mallawa; Nuraeni L. Rapi
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 2, No 1 (2012): Life Sciences
Publisher : Syiah Kuala University

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Abstract

Squid is an economically important resource. Currently, squid populations, especially in the District Barru, were intensive exploited, that is feared to affect the population biology parameters. The study was conducted fromFebruary to April 2011. The sampling period was three times a week. The Samples were obtained using random collection from the fishermen catch using Rambo left net. Squid mantle length was measured to the nearest one mm.The parameters analyzed were age group, gonad maturity stage, growth, mortality, and exploitation rate. Squid population in Barru district consists of three age groups with the length of each mode of 51 mm, 98 mm, 133 mm formales, and 51 mm, 96 mm, 127 mm for females. The gonad maturity stage ranging from TKG I to IV for males and females, with the largest percentage of TKG TKG III (47.82% in males and 50.06% in females). The squid firstmaturity is reached at 94.3827 mm in long coat for males, and 59.6735 mm for females. Growth equation for males was Lt = 227 {1 - e -0.31 (t + 0.30)} and females are Lt = 196 {1-e-0, 37 (t +0.26)}. The total mortality rate (Z) is1.59 for males and 1.63 for females. The natural mortality rate (M) is 0.20 for males and 0.57 for females. The capture mortality rate (F) is 1.39 for males and 1.06 for females. The highest CPUE values reached in 1999 was 0.0022 ton per trip, while the smallest CPUE values reached in 2001 was 0.0001 tons per year. The greatest catches could be reached with fishing effort of 50 000 trips with catches of 50 tonnes.
Analysis of growth of sandfish Holothuria scabra cultured at different cultivated habitat Ambo Tuwo; Joeharnani Tresnati; . Saharuddin
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 2, No 1 (2012): Life Sciences
Publisher : Syiah Kuala University

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Abstract

The problem in the sea cucumber culture development in Indonesia is the difficulty to find the culture area that could provide optimal production. This study analyzed the cultivated habitat that could provide optimal growth,proximate and total energy to sandfish Holothuria scabra cultivated in different habitats. The study was done from March to June 2011 in the Puteangin Island, Lasitae Village, District Tanete Rilau, Barru Regency, South Sulawesi.The cage size used was 2 m in length, 1 m in width, and 1.5 m in height. The net mesh-size was 0.5 inch. The cage placed at three different habitats, i.e. sandy overgrown with seagrass habitat, sandy covered with corals habitat, andsandy habitat. The study consisted of three treatments and three replications. Growth was observed by measuring the daily specific growth rate and absolute weight growth. Proximate and energy content of sandfish was analyzed atthe beginning and the end of the study. The study reveals that the sand and seagrass habitat provide the best results with daily specific growth rate is 1.15% ± 0.03%. The absolute weight growth is 28.45 g ± 0.95 g. The proximate content is 0.24 g ± 0.492 g for protein, 0.07 g ± 0.395 g for fat, and 18.026 g ± 0.39 g for carbohydrate. The highest energy content is 176 997 calories.
ZOOXANTHELLAE DENSITY IN DIFFERENT ZONE AND LIFE FORM IN INNER AND OUTER ZONE OF SPERMONDE ISLANDS Lorenzo Noris Tombi Bara'langi'; Ambo Tuwo; Syafyudin Yusuf; Chair Rani; Aidah A. Ala Husain; Joeharnani Tresnati
Jurnal Ilmu Kelautan SPERMONDE VOLUME 7 NOMOR 1, 2021
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/jiks.v7i1.13675

Abstract

The Spermonde Islands are part of the mega diversity area in the world's coral triangle area, crossed by the Wallace line. The Spermonde Archipelago consists of 120 islands spread over four zones: the inner zone, middle inner zone, middle outer zone, and outer zone. Samalona Island is located in an inner zone with a high level of eutrophication, and Langkai Island is located in an outer zone with a high brightness level. This study aims to determine whether there are differences in zooxanthellae density in various life forms and coral reef zones in the inner and outer zones of the Spermonde Islands. Coral sampling was done at coral reef ecosystems on Samalona Island and Langkai Island using SCUBA tools, cutting tools, and plastic samples. The zooxanthellae were separated from their hosts using a modified airbrush sprayer with an air pressure of 3000 psi. The zooxanthellae density was calculated using the formula of Eaton et al. Water qualities were measured in-situ using the water quality checker. The data were analyzed using factorial analysis with two factors. This study indicates that the zooxanthellae density in the folios life form is higher than in the encrusting and branching life forms. This study indicates that: (1) the zooxanthellae density in the same life form is not significantly different between the inner zone and outer zone; (2) the comparison of the zooxanthellae density in the same coral reef zone was not significantly different between the inner and outer zones; (3) the comparison of zooxanthellae density in the same coral reef zone was significantly different between life forms in the inner zone (Samalona Island); (4) the comparison of the zooxanthellae density in the same coral reef zone was significantly different between the life forms in the outer zone (Langkai Island).