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POTENCY OF EEL Anguilla marmorata in NORTH LOMBOK REGENCY, WEST NUSA TENGGARA PROVINCE
Get PDFAnguilla spp. is one of the fishery commodities that have high economic value.North Lombok regency is one of the central part of Indonesia which is suspected to have potential as an eel migration route. This study aims to obtain information about the identification of Anguilla spp fish populations. in North Lombok Regency. The results showed that the waters area of North Lombok Regency has the potential of eel fish source Anguilla marmorata. The timing of eel migration is still unknown, so further research is needed which will cover a full year
SPESIES COMPOSITION AND DENSITY OF MACROALGAE IN KAMBOWA VILAGE WATERS, SOUTHEAST SULAWESI
Get PDFMacroalgae has an important role in marine waters both ecologically and economically. This study aims to provide information about spesies composition and density of macoalgae in the kambowa village waters and the wealth of macroalgae in south east Sulawesi. The study was conducted in the waters of Kambowa village, north buton district South East Sulawesi from November 2015-January 2016. Sampling of macroalgae were done using quadrate transect (1 x 1 m) and other is 10 m distance and 100 m length. The result of study found that the number of macroalgae spesies consisted of 16 spesies consisting of 7 orders, 10 families, 13 genera. The spesies composition was dominated by Chlorophyta class (43%), Phaeophyta class (37%) and Rhodophyta class (21%). Total density of macroalgae is 542 ind/m2 with 229 ind/m2 by Chlorophyta class, and Phaeophyta and Rhodophyta class that is 201 ind/m2 dan 112 ind/m2. The highest density was 144 ind/m2 with Halimeda macroloba. The lowest density was 2 ind/m2 with Gracillaria edulis
THE CONTENT OF LEAD, CADMIUM, CUPRUM, AND ZINC IN ANCHOVY (Stolephorus SP) AND WHITE SHRIMPS (Penaeus merguensis) IN KAO BAY OF NORTH HALMAHERA
Get PDFSome researcher’s claim some of fish have been studied in Kao Bay were at dangerous level because mercury and cyanide contains. Nevertheless, up to now people around Kao Bay were consumed a marine product as a livelihood sources and food sources. The purpose of this research were to determine of Pb,Cd, Cu and Zn on anchovy (Stolephorus sp) and white shrimp (Penaeus marguiensis) around Kao Bay. The result expected could contributingthe feasible of anchovy and white shrimp were consumed. The method were used to determine the content of Pb, Cd, Cu and Zn on anchovy and white shrimp by using AAS method with HNO3 reagent. Those research assess thecontent of heavy metals in laboratory of Mathematics and Science Faculty of Brawijaya University. The results obtained the metal content in anchovy were Zn> Cd> Pb> Cu and the metal content in white shrimp were Zn> Cu> Pb> Cd. The results showed the content of Pb, Cd, Cu and Zn on anchovies had exceeded the maximum limit were set and the content of Pb, Cd, and Cu on white shrimps has exceeded except the Zn in was below the maximum limit but is already at a critical level
INVENTORY OF FISHING GEAR IN KECAMATAN TUNGKAL ILIR, TANJUNG JABUNG BARAT, JAMBI
Get PDFThis research was conducted at Tungkal Ilir, Jambi on May to July 2017. The aims of this study were (1) to determine the types of fishing gear that operates in Tungkal Ilir, (2) fishing area and (3) the dynamics of operating fishing gear in Tungkal Ilir. Data collection was done by interview and observation. The data will be analyzed descriptively using tables and graphs. Based on the results of this research, the fishing gear used in Tungkal Ilir are gill net, trawl, togok, sondong, trap and long line. Gill net is the largest fishing gear used with 15 fishermen. While the least used fishing gear is trap. The dynamics of fishing is strongly influenced by the season and the type of fishing gear used by the fisherman. The fishing area in Tungkal Ilir ranges from 1 mile to 30 mile
DEVELOPMENT AND SURVIVAL RATE OF GIANT SHRIMP LARVA (Macrobrachium rosebergii de Man) GIMacro II AT DIFFERENT SALINITIES
Get PDFGIMacro II prawn larvae is able to grow well at a salinity of 8-15 ppt. This condition can be improved by improving the methods of adaptation to changes in salinity prawn larvae production activities, by determining the pattern of changes in salinity are right. Salinity media through osmotic pressure affect the physiological activity, where the cells in body organs prawns should be in liquid media with ionic composition and concentration of the same with the environment. Having obtained the optimum salinity on larval rearing prawns GIMacro II in different salinity media is expected to produce a population of prawns GIMacro II with superior durability specific to environmental conditions, which can then be directed to improve the utilization of marine resources to the salinity of the best. This research aims were to study the growth and survival of larvae prawns GIMacro II reared on media of different salinities. The study used completely randomized design with three treatments and three replications. The treatments were larval rearing prawns GIMacro II at different salinities (10 ppt, 12 ppt, and 14 ppt). The results showed that the culture of prawn larvae GIMacro II at different salinity affect significantly on growth and survival of larvae prawns GIMacro II. The highest development of GIMacro II prawn larvae obtained from 12 ppt salinity treatment (7.13 ± 0.03%) and the highest survival rate was obtained also from 12 ppt salinity treatment (67.67 ± 4.51%
GROWTH OF GOSTFISH, Upeneus sulphureus IN KENDARI BAY, SOUTHEAST SULAWESI
Get PDFResearch on growth and condition factor of goatfish were carried out from May 2015 to November 2015 in Kendari Bay, Southeast Sulawesi. The purpose of this researchwas to analyze growth and condition factor of goatfish in Kendari Bay, Southeast Sulawesi. Fish samples were collected using bottom experimental gillnets and trammel nets with different mesh sizes ¾, 1, 1¼, and 1½ inch.Growth parameters were analyzed following von Bertalanffy formula using ELEFAN I software of package program of FiSAT II. A total of 386 individual fish was caught with ranged from 46–176 mm in the total length and 3,1 – 67,1g in weight. The length-weight relationship of goatfish is Lt= 184,42 {1E–1;5(t006)
MUD LOBSTER Thalassina (Latreille, 1806) (Decapoda: Thalassinidae) IN TANJUNG TIRAM DISTRICT SOUTH KONAWE REGENCY, SOUTHEAST SULAWESI
Get PDFThis research aims to identify mudlobster species in Tanjung Tiram District, Southeast Sulawesi. Based on the identification, all specimens caught was belong to the species of Thalassina anomala (Herbst, 1804). Morphological characteristics of T. anomala distinguishing from other types Thalassina: 1) Rostrum triangular shape, rounded and serrated along its lateral border; 2) Dorsomedian tubercless on carapace extending up to the dorsal part of the first abdominal somite; 3) Abdominal sternite 2-5 on pleopod to have a tubercless in the middle (median line), 4) Pereopod 1have 13-20 tubercless on the inner side of the propodal and along the lateral side of the propodus, and 5) On males, petasma without proximal spine and rounded tip wide without setae.The finding of T. anomalain mangrove forest (intertidal zone) of Tanjung Tiram was basically cause by the distribution of this species in the world wide is widely distributed than other species from the genus of thalassina
DEPOSIT STRUCTURE CHARACTER CaCO ON THE SHELLS OF SCALLOP (Amusium pleuronectes) AS BIO-INDICATORS OF ENVIRONMENTAL CONDITIONS IN THE BATANG WATERS
Get PDFThe objectives are :(1) Measurement of the character structure of CaCO3 deposit on simping’sshells, (2) Identifying Environmental Conditions of simping in Batang. The study will be conducted exploratory descriptive method (non-experimental). The results showed as morphometric’s measurement, there’s no difference in the population growth of simping in Batang from 2003 to current. Based of analysis of the hue-saturation value which is the phenotype of CaCO3 biomineralization mechanism that is deposited in the shell, showed that the biological potency (early-stage) of the character of the population’s simping growth in Batang is better than the Brebes’s population as a comparison. Conditions of natural habitat in Brebes relatively better, so that CaCO3 deposits is better also.Based on those results, efforts to provide science and technology inputs to support the preservation of aquaculture activities is to engineer a better environment to support the genetic potential to convert to a more optimum growth rate. Another thing that can do is to optimize the genetic potential of Batang’s simping as selective-breeding material in marine culture. It is expected that these strategies can be used to overcome the problem of limited production scallop in northern coast of Central Java in order to meet the needs of the market potential through mariculture activities
STUDY OF SUITABILITY AND ENVIRONMENTAL CARRYING CAPACITY FOR BARRAMUNDI (Lates calcarifer. Bloch) CULTURE IN WATERS OF LEMUKUTAN ISLAND AND PENATA BESAR ISLAND, BENGKAYANG REGION, WEST KALIMANTAN
Get PDFThe aim of this research are to study location suitability for developing Asian Seabass culture with floating cage culture system based on carrying capacity at Lemukutan Island and Penata Besar Island. The methods of this research include : field survey for assessing the biophysics characteristic of Lemukutan and Penata Besar Island, Geographycal Information System for suitability analyze and carrying capacity analyze which compare to Kepmen LH No. 51 Years 2004. The results indicated that all the water quality parameters mostly good and suitable to support Asian Seabass culture. GIS results indicated that 1.564 Ha can be developed for Asian Seabass culture on the floating net cage, or arround 14,44% from the total 10.830,7 Ha with depth about more than 6 metres and less than 25 metres. Limited factor are sheltered area from the wave, wind and storm, current rate are generally more than 0,6 m/s and depth water some less than 6 m and more than 25 m.
EFFECT OF ADDITION OF NPK FERTILIZER WITH DIFFERENT CONCENTRATIONS ON METHANE GAS PRODUCTION IN SEAWEED TYPES OF Caulerpa racemosa AND Halimeda macroloba FERMENTED ANAEROBICALLY
Get PDF Negara Indonesia memiliki potensi sumberdaya kelautan dan pesisir yang kaya, salah-satu diantaranya adalah rumput laut. Rumput laut di Indonesia masih sebatas dimanfaatkan sebagai sumber makanan dan obat-obatan. Jepang telah memanfaatkan Ulva dan Laminaria sebagai biogas (Matsui et al., 2006), pemanfaatan rumput laut tersebut menunjukkan bahwa rumput laut memiliki potensi sebagai bahan baku biogas. Tujuan dari penelitian ini adalah untuk mengetahui kandungan gas metan yang terkandung pada rumput laut jenis Caulerpa racemosa dan Halimeda macroloba yang di fermentasi secara anaerob. Metode penelitian ini yaitu dengan mencampur rumput laut Caulerpa racemosa dan Halimeda macroloba yang telah dihaluskan dan dilakukan pencampuran dengan sedimen pantai yang difermentasi anaerob selama 30 hari. Hasilnya yaitu pada Caulerpa racemosa menghasilkan gas metana sebesar 5.13%, dan Halimeda macroloba menghasilkan gas metana sebesar 4.25%. Pupuk NPK digunakan untuk meningkatkan kadar gas metana yang dihasilkan dalam fermentasi anaerob. Konsentrasi pupuk NPK yaitu 2,5 g, 5 g, dan 7,5 g. Hasil dalam penambahan pupuk NPK yaitu kadar gas metana Caulerpa racemosa meningkat 4,45% (persentase peningkatan 64,16%) dan Halimeda macroloba meningkat sebesar 4,92% (persentase peningkatan 69,18%)