TORANI: Journal of Fisheries and Marine Science
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ANALISIS KESESUAIAN LAHAN REHABILITASI MANGROVE DI KECAMATAN BONTOA KABUPATEN MAROS PROVINSI SULAWESI SELATAN
No full textMangrove ecosystem is one of the coastal ecosystem has a very important role, because it has a physicalfunction, bioekologis and economical for coastal communities. Currently the mangrove suffered damage fromthe severe pressure due to population growth. To reduce the damage it is necessary to mangrove rehabilitation,one of the factors to consider are suitability rehabilitation. This study aims to analyze and map the suitability ofmangrove rehabilitation area in District Bontoa Maros South Sulawesi. Benefit from the results of this study,expected to provide information on the analysis of land suitability for Rehabilitation magrove. This researchwas conducted in March 2011. The method used is survey method with parameters Field current conditions,tides, waves, temperature, salinity, substrate conditions, and slope. Data analyzed by the scoring method andplotted based on the map. Results of this study showed two categories namely accordance suitability andsufficient appropriate, categorized according to the type of Rhizophora spp, Avicennia spp, Sonneratia alba, S.caseolaris, Bruguiera parvilofa and B. Xesangula and B. gymnorhiza. Conditions mangrove areal extents thatcan be rehabilitated at each study site: Ampelkale village of 55.375 ha, 6.636 ha Pajukuang village, and thevillage of Bontobahari 16.011 Ha.Keywords: Land suitability and Rehabilitation of Mangrove Ecosystem
HUBUNGAN PANJANG BOBOT DAN FAKTOR KONDISI IKAN ENDEMIK PIRIK (Lagusia micracanthus, Bleeker 1860) DI SUNGAI SANREGO, SULAWESI SELATAN
No full textThis research aimed to study correlation between the weight length and the condition factor of Pirikfish.The sample collection conducted from September 2014 through February 2015 in Sanrego river, LangiVillage, Bone regency, South Sulawesi. The analysis of the samples carried out in the Laboratory of FishBiology, Department of Fisheries, Hasanuddin University, Makassar. The total length was measured usingdigital calliper of 0.01 mm and the weight was measured using the digital scale of 0.001 g. The fish sampleswere dissected and categorized into male and females with the sex gonad maturity. The total samples of theendemic pirik fish collected during the research were 162, 72 male dan 90 female fish. The correlation of theweight length was based on the equation W=0,00003L2,8719 at male fish, W=0,00003L2,8575 in the female fish andin general, the obtained equation was W=0,00003L2,8846. The result of the t test showed that the value washigher than t table; therefore, the Pirik fish in Sanrego rivers had negative allometric growth attern (minor) (b <3), since the addition of body length was faster than the increase of body weight. The analysis of the conditionfactor revelead that the value range of 0,8038-1,2926 with an average 1,0274 in male fish and 0,9263-1,4533with the average of 1,1598 in female fish. This showed that the conditions factors of the endemic pirik fish werelower compared to the female fish.Keywords : Length weight, condition factor, endemic-pirik fish, Sanrego River, South Sulawes
PETA SEBARAN IKAN CAKALANG (Katsuwonus pelamis) BERDASARKAN BEBERAPA PARAMETER LINGKUNGAN DI TELUK BONE DAN LAUT FLORES
No full textBone Strait and Flores sea are Indonesian waters which has a high fish resources, especially Katsuwonuspelagicus. Those waters are also affected by climate change. Aims of study were to examined distribution map ofKatsuwonus fish based on environemental condition at Bone Strait and Flores Sea. Study was conducted for fourmonths (May – August 2015). Environment parameters (Sea level temperature, Chl a, salnity and pH) wasmeasured in situ at fishing area and fish weight data was measured through measuring fish that caught from poleand line fishermen. Results showed that Katsuwonus from Bone Strait (1 – 2 kg and 3.5 – 5 kg) tended to distributeat temperature, Chl a, salinity and pH account for 29.3oC – 30oC, 0.8 – 1.5 mg/m3 and 28 – 30 o/oo, 7.95 – 8.37respectively. meanwhile fish with 2 – 2.5 kg was distributed at 30oC – 30.3oC, 0.6 – 0.7 mg/m3, 28 – 29 o/oo and8.32 – 8.5 for temperature, Chl a, salinity and pH, respectively. At Flores Sea, Katsuwonus with 1.2 – 1.5 kgtended to distribut at 29.5oC – 30oC, 0.12 – 0.16 mg/m3, 28 – 30 o/oo and 7.95 – 8.57 for temperature, chl a, salinityand pH, respectively. Fish with weight 1.5 – 2.2 kg was spread at 28.5oC – 29oC for temperature, 0.1 – 0.13mg/m3 chl a, 28 – 30o/oo for salinity and 8.38 – 8.5 for pH.Keywords : Distribution map, Katsuwonus fish, environmental factor, Bone Strait and Flores Sea
PENGARUH TIYAITIKI TERHADAP POPULASI DAN KEANEKARAGAMAN IKAN SIGANUS (FAMILI SIGANIDAE) DI PERAIRAN TABLASUPA, JAYAPURA, PAPUA
No full text This study was conducted to examine the effect of the traditional conservation system "Tiyaitiki" toward populations and diversity of rabbit fish (family Siganidae) in Tablasupa Coastal Area, Jayapura Regency. By hypothesis Tiyaitiki system is very effective in enhancing the functioning of ecosystems, populations, and species diversity of rabbitfish. Using the method of VES and transect lines, spacious observation area is 81,000 m2. The data were analyzed using diversity index Shannon-Wiener (H \u27), Index Evenness (E), Index dominance Simpson (D) and Population Density (PD). The result showed Tablasupa Coastal area has 10 rabbit fish species and 873 individuals. The level of diversity is categorized as moderate or 1.7 and the population is more likely to be uniform, as well as population density tend to be moderate. The increasing number of rabbitfish species and populations affected by the increase of live coral cover and increased density of seagrass by the system Tiyaitiki in Tablasupa Coast. Tiyaitiki traditional conservation system capable of triggering an increase in the ecological function of seagrass and coral reefs, which significantly affected the growth of population and the diversity of fish species in the waters Rabbitfish family Siganidae in Tablasupa Coastal area. Keywords: Rabbit fish, Tablasupa, Tiyaitiki, Jayapura
VALUE ADDED PERKAWINAN INDUK UDANG WINDU (Penaeus monodon) DARI LOKASI YANG BERBEDA
No full textThe research aim was to compare inner mating of Penaeus monodon and to determine growth of junevile fromcross mating between broodstock from the same and different area. This study was using broodstock from Siwaand Pangkep. Six broodstock from the same and different area would then been mating. Parameters forbroodstock quality were measured including fecundity, period of mating, fertilization, egg diameter and egghatching capability. Parameters for measuring larvae quality were survival rate, number of larvae for eachstage, growth of larvae for each stage. The result showed that the best reproductive potency were fecundity,fertilization and survival rate of larvae that found from mating between female broodstock from Siwa and malebroodstock from Pangkep.Keywords : Source of broodstock, Penaeus monodon, reproductive potency, broodstock and larvae qualit
DINAMIKA POPULASI KERANG HIJAU (Perna viridis) DI PERAIRAN MANDALLE, KABUPATEN PANGKAJENE DAN KEPULAUAN
No full textKerang 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 Kepulaua
STUDI HISTOPATOLOGI GONAD GASTROPODA LAUT (THAIS TUBEROSA DAN MONODONTA LABIO) YANG MENGALAMI IMPOSEKS AKIBAT TERPAPAR TRIBUTYLTIN (TBT)
No full textTributyltin (TBT) is an organotin compound used as antifouling material for ship or boat paints to preventattachment of marine biota on the wall of ships or boats. The most dangerous effect of TBT bioaccumulation onmarine organisms, particularly gastropods, is the failure on the reproduction system, such as the occurrence ofimposex symptoms. The main purposes of this study are to know the histopathology of gonads by species Thaistuberosa and Monodonta labio that has been exposed to imposeks the compound tributyltin (TBT). The samplingof Thais tuberosa and Monodonta labio was conducted at 2 sites: Manado Port and Tateli Coastal Waters. Thehistopathology test was conducted in the Central Diagnostic Laboratory of Anatomic Pathology, Manado, withHaematoxylin-Eosin (HE) technique. The result showed that histopatology gonads marine gastropods type Thaistuberosa and Monodonta labio there has been a change in the tissues showing the imposex character, ifcompared with tissues of normal individuals of male and female, but in these changes tissues not cause damagecaused by a compound tributyltin (TBT).Keywords : Histopatology of gonad, Gastropods, Imposex, Tributylti
PEMANFAATAN SANDEQ DALAM MENDUKUNG PENGEMBANGAN EKOWISATA BAHARI DI PULAU PASIR PUTIH KABUPATEN POLEWALI MANDAR
No full textSandeq is a kind of marine transportation , since long has been operated by Mandar seaman and fishers alongthe coastal water area, as well as for fishing in Sulawesi Barat . This research was carried out to study thefeasibility of utilizing the Sandeq boat in marine ecotourism in Pasir Putih Island of the Polewali MandarRegency. SWOT Analisys has been applied to reveal the level of support of stakeholders regarding this idea, andthe strategies to be carried out in developing this specific ecotourism. The analysis shows that the internal andexternal factors are strongly support the program with a strong and aggressive manner and having a positifopportunity. A scenario on commercially operated ecotourism was designed and financially analyzed for 5 yearsperiod of operation: (1) Net present value of Rp 705.121.922,-, (2) Internal rate of returnof 100,99 %, and B/Cratio range from 1.7 at 3nd year to 3.7 at the 5th year. Those values showed that the project is financiallyfeasible. Three alternatives routes of marine ecotourism werw iidentified: (1) Ballanipa Village to KaramasangIsland, (2)From Balanipa Village to Battoa Island, (3) From Tonyaman Village to Karamasang Island and PasirPutih.Key words : Sandeq boat, ecotourism, Pasir Putih Island, Polewali mandar Regency, Swot Analysis, Financialanalysis
KERAGAMAN BIOLOGIS IKAN KERAPU SUNU (Plectropomus leopardus) DI KEPULAUAN SPERMONDE SULAWESI SELATAN
No full text Fisheries management requires reliable estimation and can be made as a consequence of the alternatives strategyexploitation, it requires knowledge about the biological condition of the fish stocks at a certain time, one of them is agrouper (Plectropomus leopardus).The aims of this study is to analyze the biological diversity includes the averagetotal length, size structure and weight-length relationship of groupers (Plectropomus leopardus) in SpermondeIslands. The results are expected to provide information on sustainable resource management in SpermondeArchipelago.The study was conducted from July 2013- February 2014 in three locations of Spermondearchipelago,namely Sarappo Island, LumulumuIsland and LangkaiIsland using primary data. Research methodssuch as measurement of total length and weight of the grouper Sunufish from the catch of fishermen and traders ineach collection area. The average of the total length, the size structure and weight length relationships wereanalyzed descriptively,The analysis results of the average total length of the grouper (P. leopardus) caught inSarappo Island, Lumulumu Island and Langkai Island respectively 29.84 ± 8.6 cm (N = 624), 31.93 ± 8.03 cm ( N =291), 34.64 ± 7.41 cm (N = 214) where the nearer them to the mainland,the smaller averagetotal length is. The sizedistribution of grouper sunu (P. leopardus) in the Sarappo island and Lumulumu island are most of the small sizewhich is 22.5 cm by 35.63% and 22.68%, and on the Langkai island the most caught fishes size are 37.5 cm by 31,77%. Weight-length relationship on the three islands are minor allometric,Keywords: total length, structure size, weight length relationship, grouper Spermonde Archipelag
ANALISIS POLA SEBARAN DAN PERKEMBANGAN AREA UPWELLING DI BAGIAN SELATAN SELAT MAKASSAR
No full textWaters of the southearn of Makassar Strait is a region which relatively rich of organic matter because thephenomenon of upwelling along the eastern season. The purpose of this research was to analyze the distributionpatterns and the development of upwelling areas in the southern of Makassar Strait. This study used chlorophylladata and sea surface temperature from level 1 of Modis image for two years (2009 and 2010). The resultshowed that phenomenon of upwelling that occurs in the southern Makassar Strait appears since early June, thestrongest upwelling in August and disapear in October. The upwelling was indicated by declining of sea surfacetemperature and increasing of chlorophyll-a concentration. Analysis of wind direction and speed indicate thatthe upwelling occurs in the southern Makassar strait spread to southwest with and estimated upwelling areaaround 46.000 km2.Keywords: upwelling, Makassar Strait, chlorophyll-a, sea surface temperature