Crayfish (Panulirus spp) is one type of Indonesian marine fishery resources that is very potential and has long been caught by fishermen in coral areas to find out the description of fishing gear, methods, and crayfish fishing areas (Panulirus spp) in the waters of Pangkep Regency and to find out the estimated utilization rate of crayfish using the MSY approach in Pangkep Regency. This research has been carried out by taking data in the form of primary data carried out from March 1, 2022 – April 30, 2022 and secondary data in the form of catch production data and fishing efforts (units) obtained from the Marine and Fisheries Service of Pangkep Regency for the 2016-2021 time period. The results of this study showed that the fishing gear used to catch crayfish (Panulirus spp) was a fixed gill net using a canoe boat as a tool. The process of catching crayfish includes setting, soaking and hauling. Coral fishing grounds are in rocky areas with the fishing season occurring from November to January. Based on the results of research using three surplus production models, it was concluded that the most suitable surplus production model for crayfish fisheries in Pangkep Regency is the Gulland model by showing a large (R2) and a small standard deviation. The maximum sustainable catch is 16,783.58 kg/year and the attempted catch is 12,496 units. The Utilization Rate (TP) and Capability Rate (TPU) have exceeded (yJTB) and (fJTB) with overexploited status.
The purpose of this study is 1) The composition of the type of catch of crayfish caught in the water around the island of Salemo. 2) Long-weight crayfish pearl (P. ornatus) and Sex ratio. This research will be conducted on October 1, 2021 to February 28, 2022 in the Salemo Island Waters in the Kabupatan Pangkep area. The research method used to identify the type of crayfish was carried out visually by looking at the color patterns found in the body segments based on the book Moosa and Aswandy (1984), identification of crayfish types was carried out using the identification key from William. The results of this study showed that there were 3 types of crayfish or lobsters, namely pearl crayfish (P. ornatus) as many as 38.23 heads or 38.23%, pearl crayfish (P. versicolor) as many as 218 heads or 41.05%, and batik crayfish (P. longipes) as many as 110 heads or 20.72%. With the largest size is pearl crayfish (P. ornatus). The sex ratio of male and female crayfish pearl crayfish (P. ornatus) is 0.45 : 0.55 or a ratio of 1 : 1. The relationship between the length and weight of pearl crayfish is classified as a minor allometric growth pattern.
Seagrass ecosystems in the coastal Labakkang Pangkep regency is the habitat of various types of shellfish which is the target of local fishermen catch. One of the many species of shellfish found in this coastal area is the mussel shell (Marcia hiantina L.). This study aims to determine the relationship between the length and weight of the long shell size of mussel shells (Marcia hiantina L.) in the coastal waters catchment of Labakkang. This research was conducted in catching area at three locations in coastal waters of Labakkang based on density of seagrass and population with sampling every month from August 2014 until July 2015 by using descriptive method that is random sampling by measuring the length of shell and weight of each shellfish. The results showed that the constant value (b) of mussel shell (Marcia hiantina L.) in all observation stations ranged from 2,44 to 2,63, meaning growth pattern including negative allometrik means shell length growth faster than body weight with coefficient of determination (R2) ranging from 0,88 to 0,91 means to have a high enough. The distribution of the size of the mussel (Marcia hiantina L.) is found on the smallest C size station with the range 1,50 – 1,88 cm and the middle value of 1,69 cm and the largest with a range of 5,34 - 5,72 cm and the middle value of 5.53 cm.Keywords: Bakalang shell, Length weight, Coastal waters of Labakkang, Allometric negative
The high exploitation pressure and decreasing environmental conditions of Lake Tempe due to pollution, sedimentation, growth of aquatic weeds, and the presence of invasive alien fish, namely suckermouth catfish, are thought to have harmed one of the native fish, namely climbing perch (Anabas testudineus). The research aims to analyze the reproductive biology of climbing perch. Fish were caught using gill nets from January to April 2021. The total length of the fish was measured using a caliper (cm), and the weight (g) was measured using an analytical balance. Fish gonads were preserved in a 4% formalin solution. Fish fecundity was calculated based on the gravimetric method. The length distribution of male and female fish was 7.5 - 15.5 and 7.5 - 17.5 cm, respectively. The maximum climbing perch caught was 17.5 cm smaller than the maximum length ever caught, which was 35.0 cm, and the average size was 9.56 cm smaller than the average length of climbing perch, which was 12.5 cm. The ratio of male and female fish as a whole was 1.1: 0.9 or 53%: 47%, while the sex ratio of males and females in spawning was 38%: 62%. Climbing perch is polygamous, i.e., male fish have several partners in one spawning season. The spawning season lasted throughout the research period, with the spawning season's peak in February with a total spawner pattern. Fecundity ranged from 253-10,237 eggs with an average value of 2,571 eggs, and the relationship between length and weight with fecundity was very strong. The growth pattern of male and female fish was negative allometric. Abstrak Tekanan eksploitasi yang tinggi dan kondisi lingkungan Danau Tempe yang semakin menurun akibat pencemaran, sedimentasi, pertumbuhan gulma air, dan hadirnya ikan asing invasif, yaitu ikan sapu-sapu, diduga telah memberikan pengaruh buruk terhadap salah satu ikan asli yaitu ikan betok (Anabas testudineus). Penelitian bertujuan untuk menganalisis kondisi biologi reproduksi ikan betok. Ikan sampel ditangkap menggunakan jaring insang dari Januari-April 2021. Panjang total ikan diukur dengan jangka sorong (cm) dan bobot ditimbang (g) dengan timbangan analitik. Gonad ikan diawetkan dalam larutan formalin 4%. Fekunditas ikan dihitung berdasarkan metode gravimetrik. Sebaran ukuran panjang ikan jantan dan betina masing-masing 7,5 - 15,5 dan 7,5 - 17,5 cm. Panjang maksimum ikan betok yang tertangkap yaitu 17,5 cm lebih kecil dari panjang maksimum yang pernah tertangkap yaitu 35,0 cm, dan panjang rata-rata yaitu 9,56 cm lebih kecil dari panjang rata-rata ikan betok yaitu 12,5 cm. Nisbah ikan jantan dan betina secara keseluruhan sebesar 1,1 : 0,9 atau 53% : 47%; sedangkan nisbah kelamin jantan dan betina dalam pemijahan yaitu 38% : 62%. Ikan betok bersifat poligami yakni ikan jantan memiliki beberapa pasangan dalam satu musim pemijahan. Musim pemijahan berlangsung sepanjang bulan penelitian dengan puncak musim pemijahan pada Februari dengan pola pemijah serentak. Fekunditas berkisar antara 253- 10.237 telur dengan nilai rata-rata 2.571 telur. Hubungan panjang dan bobot dengan fekunditas sangat kuat.Pola pertumbuhan ikan jantan dan betina adalah allometrik negatif.
Pembangunan jalan ruas Seri – Hukurila merupakan jalan yang baru direncanakan dengan kondisi kontur tanahnya berbukit dan curam sehingga direncanakan dengan tujuan untuk dapat memberikan kenyamanan dan keselamatan pengguna jalan dari kelandaian yang terlalu tingggi dan tikungan tajam. Program Autodeks Land Desktop 2006 digunakan sebagai program untuk membantu membuat trase jalan dan untuk menggambar potongan memanjang (long section) dan melintang (cross section) pada ruas jalan tersebut. Berdasarkan hasil penelitian, panjang ruas jalan yang di teliti yaitu 3 Km. Lebar perkerasan adalah 5.50 meter dan lebar bahu jalan masing – masing 1 meter. Kecepatan rencana maksimum pada tikungan adalah 50 km/jam, dan kecepatan rencana minimum pada tikungan adalah 20Km/jam. Jari-jari lengkung rencana maksimum 300 meter dan minimum 20 meter. Kelandaian maksimum potongan memanjang jalan yaitu 9.923%. Volume galian yang di hitung manual = 43605.590 m3, timbunan = 37229.794 m3. Volume galian yang di hitung dengan program Autodeks Land Desktop 2006 = 41628.498 m3, timbunan = 34882.155 m3. Selisih dari ke dua perhitungan tersebut yaitu untuk galian = 1977.093 m3 dan untuk timbunan = 2347.639 m3, dengan perbandingan persentasi galian = 4.749 % dan timbunan 6.370 %.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.