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Bumbang bay is one of the lobster fishing areas in Central Lombok District, where fishing is carried out at all times and has the potential to disrupt the sustainability of the population in the future. Data is collected from the stock of lobster stocks that are still in fishing cages. Potential risks and fishing pressure could be assessed through length and weight, growth, structure size and potential recruitment analysis. The results of the study found 6 species of lobsters, of which are 2 dominant species were pearl lobster (45.5%) and sand lobster (44.5%) of the total catch. The Length and weight relationship have a negative allometric pattern which is (pearls lobster b = 2.04 and sand lobster = 1.2). The growth rate is relatively slow with a growth rate coefficient of 0.2-0.49 per year. Therefore, recruitment per biomass from the population is also low and exploitation rate about 0.6. The population growth and recruitment relatively low and increasing the exploitation rate, potential to unsustainable of the lobster population in the future.AbstrakPerairan Teluk Bumbang adalah salah satu pusat perikanan lobster di Lombok Tengah, dimana penangkapan dilakukan setiap waktu dan berpotensi mengganggu keberlanjutan populasi dimasa yang akan datang. Potensi risiko dan tekanan penangkapan dapat dikaji melalui analisis panjang dan bobot, pertumbuhan, struktur ukuran dan potensi recruitment. Hasil penelitian ditemukan sebanyak 6 jenis lobster, dimana 2 jenis dominan yaitu lobster mutiara (45,5%) dan lobter pasir 44,5% dari total tangkapan. Hubungan panjang dan berat memiliki pola allometrik negatif (lobster mutiara b=2,04 dan lobster pasir =1,2). Pertumbuhan tergolong lambat dengan koefisien laju pertumbuhan 0,2-0,49 per tahun. Begitu juga recruitment per biomass dari populasi juga rendah dan eksploitasi tergolong tinggi yaitu 0,6. Kemampuan tumbuh yang lambat dengan recruitment yang rendah serta eksploitasi tinggi, potensial menganggu keberlanjutan populasi lobster dimasa yang akan datang.

Lobster is one of the commodities that Indonesia export fisheries worth selling high. The value of selling lobster is affected by type, size, and condition or completeness of her body. Palabuhanratu is one of the centers of the lobster fishery in the South of West Java. Research on condition of fishing lobster in Palabuhanratu was done in April through November 2016 include the type, gender, number, and size (carapace length and weight) and its relationship with regulatory. Observation and measurement of the collecting is done in the lobster that come for each/sold to the warehouse by fisherman and follows directly the activities of catching lobsters. The data already obtained tabulated and analyzed. The results showed that types of lobsters captured fisherman Palabuhanratu are Panulirus ornatus, Panulirus penicillatus, Panulirus versicolor and Panulirus homarus. The majority of lobsters are caught is a kind of lobster P. homarus and P. ornatus and then followed P. penicillatus and P. versicolor. The number of the male for P. homarus, P. versicolor and P. ornatus more than females while the females of P. penicillatus more than males. The majority of the lobster weights less than 300 grams and carapace length less than 8 cm. The body condition of fishing lobster in Palabuhanratu based on the lobster fishery regulations that exist for all types of lobsters is a majority yet decent catch. Keywords: type, lobster, Palabuhanratu, size

Pemanfaatan sumber daya perikanan baronang di Kepulauan Seribu menjadi salah satu potensi perikanan tangkap yang cukup besar. Penangkapan baronang di Kepulauan Seribu mengalami peningkatan, hal ini dipengaruhi harga baronang yang meningkat akibat dari permintaan pasar akan baronang meningkat. Kegiatan eksplorasi penangkapan baronang secara terus-menerus mengakibatkan kerusakan habitat penangkapan. Tujuan penelitian inventarisasi jenis alat tangkap baronang serta menentukan tingkat keramahan lingkungan unit penangkapan ikan baronang. Metode penelitian yaitu survey. Penelitian dilaksanakan pada bulan Februari-Maret 2015 dan November-Desember 2015. Analisis data yang digunakan yaitu deskriptif untuk menginventarisasi jenil alat tangkap ikan baronang di Kepulauan Seribu; Analisis tingkat keramahan lingkungan berdasarkan sembilan kriteria FAO. Hasil penelitian menunjukkan Jenis alat tangkap ikan yang menangkap baronang di Kepulauan Seribu adalah alat tangkap muroami, bubu tambun, bubu kawat, bubu jaring, jaring lingkar, dan speargun. Dari tingkat keramah lingkungan jenis alat tangkap bubu tambun merupakan alat tangkap yang paling ramah lingkungan dengan nilai skor 25,75.

Set net is a fishing gear to set permanently in the fishing ground. Set net othosiami was developed by Center for Fisheries Development Department of Marine and Fisheries (BPPI) Semarang; it had been operated in 2010 at the Gulf Mallasoro, Jeneponto. The data information was collected regarding productivity, compositioning and catching diversity was taken from the catching data in 2011 – 2013. The study aims were to analyze catching trend, catching composition types and catching diversity. This study was conducted on January and February 2014 at the Gulf Mallasoro, Jeneponto. The method was used descriptive method. Based on the data from 2011-2013 on September-October showed a decline catching trend while the amount of cacthing trend consist of 91 species. The pelagic fish has been identified for 31 species and 26 species belongs to demersal fish from 57 species were found. The most dominant fish was Peperek (leiognathus splendens) with 27% of fish’s identification. The diversity index (H’) catching fish period 2011-2013 ranged from 2.61 – 2.74 which regard to moderate category diversity. Furthermore, the value of evenness index (E) was more evenly 0.63 - 0.70 categorical. The dominance index value (D) showed within 0.12 to 0.15 there was no dominant species.

One of the fishery resources that have high economic value are demersal fisheries resources in deep sea waters. The results ofthis study found 22 demersal fish species with high economic value captured by fishermen. The results ofthe study found as many as 22 species, five fish stretcher 5 that can be foundin nearly all areas and fishing season. Five types of fish are: lencam (Lethrinus sp.), kurisi (Etelis spp), kerapu (Ephinephelus sp), red snapper (Lutjanus spp), bubara fish (Caranx sp). The types of fish catches were found spread around the waters of Ambon Island. The potential at Maxsimum sustainable Yield (MSY) of fish grouper (Epinephelus spp) 572.02 with 15.75 tonnes optimum effort trip. The average production of 178.919 tonnes currently. Thus the average utilization rate of groupers currently 31.27% or 68.72% untapped. If it is based on the MSY allowable catch for the fish species is 457.60 tons / year. MSY red snapper (Lutjanus spp) 146.83 wih 2.631 tonnes optimum effort trip. Average production is currently 67.704 tons. Thus the average utilization rate of the red snapper fish is currently 47.47%, or in other words the potential for red snapper untapped 52.52%. If it is based on the MSY allowable catch for the fish species is 117 464 tons / year. MSY bubara fish (Caranx sp) 270.60 tonnes with optimum effort 3630 trip with an average yield of 72.96 tons.