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Journal : JURNAL RISET DIWA BAHARI

Sebaran Ukuran Rajungan (Portunus Pelagicus Linnaeus, 1758) yang Tertangkap Bottom Gillnet dengan Umpan yang Berbeda Nuraeni L Rapi; Jumrawati Jumrawati; Muhammad Sabir; Sri Wulandari
Jurnal Riset Diwa Bahari (JRDB) Volume 1, Nomor 1, 2023
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM) Institut Teknologi dan Bisnis Maritim Balik Diwa

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Abstract

Gill net fishing gear is a passive fishing gear that usually blocks the swimming direction of fish, with the addition of bait as a lure is expected to increase the chances of fish that will be used as a target catch willing to enter the fishing gear. aims to analyze the composition of crab catches on different baits and analyze the size distribution of crabs. The expected benefits of this research are as one of the information materials for efficient crab fishermen about the use of chicken intestine waste bait and fly fish against crab catches with bottom gill net fishing gear related to the availability of fish bait stocks that are uncertain and quite expensive prices. This research was conducted in January - February 2022. From the results of the t-test analysis, the tcount value was obtained at 5.014 while the t-table was obtained at 2.042 with a significance value of 0.000. Because the t-count value is greater than the t-table and the significance value is smaller than the real level of 5% or 0.05, it is concluded that there is a difference in catches between the chicken intestine bait group and fly fish bait with an average catch using chicken intestine bait higher than using fly fish bait
Hasil Tangkapan Rajungan (Portunus Pelagicus Linnaeus, 1758) di Perairan Pancana berdasarkan Peraturan Menteri Kelautan dan Perikanan Nomor 12 Tahun 2020 Muhammad Sabir; Nuraeni L Rapi; Jumrawati Jumrawati; Sri Wulandari Wulandari
Jurnal Riset Diwa Bahari (JRDB) Volume 1, Nomor 1, 2023
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM) Institut Teknologi dan Bisnis Maritim Balik Diwa

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Abstract

Portunus pelagicus is one type of crab that has a very high economic value. The high selling price of crab encourages an increase in fishing effort, where the pressure of increasing fishing effort can cause less catch per effort obtained. To maintain the sustainability of the availability of fisheries resources, improve community welfare, equality of cultivation technology, investment development, increase foreign exchange, and development of cultivation and crab (Portunus spp.), the Minister of Marine Affairs and Fisheries Regulation Number 12 of 2020 was issued to re-regulate the provisions for catching and/or releasing crab, therefore this study aims to determine the feasibility of catching crab (Portunus pelagicus) based on the Minister of Marine Affairs and Fisheries Regulation Number 12 of 2020. This study uses a quantitative method by measuring the frequency distribution of carapace width and crab weight which will then determine the frequency of each class by entering the width data of each crab based on the Minister of Marine Affairs and Fisheries Regulation Number 12 of 2020. The results showed that more than 90% of the crab catches followed the Minister of Marine Affairs and Fisheries Regulation Number 12 of 2020, namely carapace width size above 10 (ten) cm and weight above 60 (sixty) grams per tail. Although the catch of unfit crabs is less than 10%, it should be released back to nature to support the sustainability of crab.
Analisis Efektivitas Warna dan Kedalaman Pengoperasian Lampu LED terhadap Hasil Tangkapan Cumi-Cumi (Logilo Chinensis) Nuraeni L Rapi; Ibnu Malkan Hasbi; Rahman Rahman
Jurnal Riset Diwa Bahari (JRDB) Volume 1, Nomor 1, 2023
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM) Institut Teknologi dan Bisnis Maritim Balik Diwa

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Abstract

Squid is an Indonesian export product that has high economic value, sharing the type of squid which is classified as cuttlefish (Loligo chinensis.). This research aims to determine the length and weight of squid depending on the color of the lights and the depth of the water, the time it takes for the squid to gather in the fishing area, and the level of effectiveness of the squid in different LED lights. Sampling was taken in the waters of North Galesong District, Takalar Regency, with seven repetitions of blue and green lights. This research is included in quantitative research using experimental fishing and data collection using survey methods. The results of the data obtained are described in a comparative descriptive manner. analysis of the pattern of the relationship between the weight and length of the squid mantle obtained a value of W= 1.5629L^0.0017. Correlation value 84.739, contribution of 96.38% and 3.62%. squid caught with LED lights at a depth of 1 meter, 55 fish, and 3 meters, 25 fish. Frequency distribution of the length of squid (Loligo chinensis) in the North Galesong waters, distribution of weight and length of squid mantle at a depth of 1 meter, frequency of squid mantle length between 9.3–11.1 cm, stagnant frequency 15–16.8. Squid weight frequency 27–32g stagnant frequency 81–95g. The depth distribution is three meters, the squid mantle length frequency ranges between 7.5 – 9.3 cm, and the stagnant frequency is 15.1 – 16.9 cm. Squid weight frequency 12–27g, drop frequency 60 – 75 g. Observation results of salinity values ​​in North Galesong waters are 28-31%, pH values ​​are 6-7. Current speed 0.22 m/s. The squid catch was 80 samples, at intervals of 1, 2, and 3 hours, the catch at an interval of 2 hours was a total of 42, at an interval of 3 hours 23, and in 1 hour only 15 squid. The statistical test results show that the results for the two LED light colors are 2.6177, which is smaller than the t-table 2.1788.