scholarly journals Kesadahan Air Media Pemeliharaan dan Pengaruhnya Terhadap Kualitas Produk Kepiting Soka

2017 ◽  
Vol 20 (2) ◽  
pp. 145
Author(s):  
Sunaryo Sunaryo ◽  
Ali Djunaedi ◽  
Adi Santoso
Keyword(s):  
Body Fluid ◽  
Calcium Content ◽  
Scylla Serrata ◽  
Water Softening ◽  
Time Duration ◽  
Mangrove Crab ◽  
Significant Difference ◽  
Soft Shell ◽  
Mangrove Crabs

Mangrove crabs (Scylla serrata Forsskål, 1775) is one of the biological resources of the sea, that have economically important value and has been widely cultivated by traditional farmers to meet food needs in both the local and export markets. But the resulting quality of soft shell crab is not optimal. Quality is determined by the hardness of crab carapace after moulting.  Approach to problem solving can be done through the research process of the aquatic organisms to their environment adaptation.This research was aimed to acknowledge the influence of the difference in water softening against time duration the hardening rate of the crabs carapace. This research had done in the area of brackishwater pond in the village of Mojo, Ulujami, Pemalang Regency during 8 months. Animal test used a Mangrove crab (S. serrata Forsskål, 1775), the weight size of 80-150 g, individually kept in plastic boxes (30 x 20 x 25 cm), 15 pieces per m2 density. Research was carried out using case study method. The observation parameters of research was aimed at the water softening and calcium content of rearing water media and body fluids of mangrove crabs, and time duration of carapace hardening. The data obtained from the results of the measurement and calculation of the research parameters of each sampling, include: carapace hardening response due to differences in water softening and calcium content in the rearing media as well as  calcium content in the body fluid of the mangrove crab was analyzed using t-test. Observation on the research results showed that the process of soft shell crab production using rearing media of brackishwater and freshwater, each was respectively difference in the containing value of water softening and calcium content (p < 0.01).   The water softening and calcium content of mangrove crabs as well as the calcium content of body fluid of the mangrove crab to response of time duration the carapace hardening on the mangrove crab after moulting as a whole indicated very significant difference (p < 0.01).  But the results of the statistical analysis of calcium content in the body fluid of mangrove crab with the environmental rearing water media on each individual habitat suggested not significant difference (p ≥ 0.01).  The conclusions of these research, i.e. water softening and calcium content of the rearing water of mangrove crab was the determining factor in the quality of the soft shell crab product. On the occasion research was advised to do optimization of water softening in the rearing crab, so resulting highly quality product of soft shell crab.  Keywords : Calcium, Carapace Hardening, The Quality of Soft Shell Crab,Water Softening.   Kepiting bakau (Scylla  serrata  Forsskål, 1775) merupakan salah satu sumber daya hayati laut yang mempunyai nilai ekonomis penting dan banyak dibudidayakan oleh petani tradisional untuk memenuhi kebutuhan pangan baik di pasar lokal maupun ekspor. Namun kualitas kepiting soka yang dihasilkan belum optimal. Kualitas kepiting soka sangat ditentukan oleh tingkat kekerasan kulit kepiting setelah moulting. Pendekatan pemecahan masalah ini dapat dilakukan melalui penelitian proses adaptasi organisme perairan terhadap lingkungannya. Penelitian ini bertujuan untuk mengetahui pengaruh perbedaan kesadahan terhadap lama waktu kecepatan pengerasan carapace kepiting. Penelitian dilakukan selama 8 bulan di pertambakan Desa Mojo, Kecamatan Ulujami, Kabupaten Pemalang. Hewan uji yang dipergunakan berupa Kepiting Bakau (S. serrata Forsskål, 1775), berat 80 - 150 g, dipelihara pada bok plastik (30 x 20 x 25 cm) secara seluler, padat penebaran 15 ekor per m2. Penelitian dilakukan dengan menggunakan metode studi kasus. Parameter penelitian ditujukan pada kesadahan dan kandungan kalsium air media pemeliharaan dan cairan tubuh Kepiting Bakau serta lama waktu pengerasan carapace. Data yang didapatkan dari hasil pengukuran dan perhitungan parameter penelitian pada tiap - tiap pengambilan sampel, meliputi: respon pengerasan carapace akibat perbedaan kesadahan dan kandungan kalsium dalam media air pemeliharaan serta kandungan kalsium dalam tubuh kepiting bakau dianalisis dengan menggunakan uji t tes. Hasil pengamatan di dalam penelitian menunjukkan bahwa proses produksi kepiting soka menggunakan media pemeliharaan air tambak dan tawar, masing – masing mengandung nilai kesadahan dan kandungan kalsium yang berbeda (p<0,01).  Kandungan kesadahan dan kalsium air media pemeliharaan Kepiting Bakau pada media air pemeliharaan yang berbeda menunjukkan perbedaan sangat signifikan terhadap respon waktu pengerasan carapace Kepiting Bakau setelah moulting (p<0,01). Namun hasil analisis statistik kandungan kalsium cairan tubuh kepiting bakau dengan lingkungan media air pemeliharaan pada masing – masing habitat menunjukkan tidak adanya perbedaan yang sangat nyata (p≥0,01). Kesimpulan penelitian ini, yaitu kesadahan dan kandungan kalsium air pemeliharaan merupakan faktor penentu kualitas produk kepiting soka. Pada penelitian selanjutnya disarankan untuk mengoptimalkan kesadahan sehingga dihasilkan produk kepiting soka berkualitas tinggi.                                                       Kata Kunci : Kalsium, Kesadahan, Kualitas Kepiting Soka, Pengerasan Carapace

scholarly journals Morphometri Kepiting Soka yang Dipelihara pada Tambak Tradisional di Desa Mojo, Kecamatan Ulujami, Kabupaten Pemalang

2017 ◽  
Vol 6 (2) ◽  
pp. 122
Author(s):  
Sunaryo Sunaryo ◽  
Ali Djunaedi ◽  
Adi Santoso
Keyword(s):  
Body Weight ◽  
Carapace Length ◽  
The Body ◽  
Raw Material ◽  
Scylla Serrata ◽  
Mangrove Crab ◽  
Soft Shell ◽  
Before And After ◽  
Mangrove Crabs ◽  
Food Needs

Kepiting bakau (Scylla  serrata  Forsskål, 1775) merupakan salah satu sumber daya hayati laut yang dipergunakan sebagai bahan baku untuk memproduksi kepiting soka. Organisme ini mempunyai nilai ekonomis penting dan banyak dibudidayakan oleh petani tradisional untuk memenuhi kebutuhan pangan baik di pasar lokal maupun ekspor. Dikeluarkannya Keputusan Menteri No 1 Tahun 2015 membuat banyak pembudidaya maupun pengekspor Kepiting Bakau mengalami banyak kerugian karena kepiting soka yang diproduksi kebanyakan tidak memenuhi syarat ukuran yang sesuai dengan ketetapan Pemerintah. Oleh karena itu untuk mengatasi permasalahan tersebut perlu dilakukan pendekatan melalui penelitian perubahan morphometri Kepiting Bakau sebelum dan setelah moulting. Penelitian ini bertujuan untuk mengetahui hubungan panjang/lebar dan berat Kepiting Bakau pada saat sebelum dan setelah moulting yang dipelihara pada lingkungan budidaya di kawasan pertambakan di Desa Mojo, Kecamatan Ulujami, Kabupaten Pemalang. Penelitian ini menggunakan Kepiting Bakau (S. serrata Forsskål, 1775), berat 80 - 150 g, dipelihara pada bok plastik (30 x 20 x 25 cm) secara seluler, padat penebaran 15 ekor per m2. Penelitian ini menggunakan metode studi kasus. Parameter penelitian ditujukan pada pengukuran morphometri tubuh Kepiting Bakau sebelum dan setelah moulting, yaitu panjang dan lebar carapace serta berat. Parameter morphometrik bagian tubuh kepiting, meliputi: hubungan panjang carapace dan pertambahan panjang carapace, hubungan lebar carapace dan pertambahan lebar carapace, hubungan berat dan pertambahan berat tubuh kepiting bakau dianalisis menggunakan analisis regresi (Sudjana, 1982). Ukuran panjang carapace, lebar carapace dan berat kepiting bakau sebelum moulting satu sama lain menunjukkan adanya pola korelasi linier positif. Pola korelasi yang sama ditunjukkan juga pada hubungan antara ukuran panjang carapace, lebar carapace dan berat Kepiting Bakau sebelum moulting dengan pertambahan panjang carapace, lebar carapace dan berat Kepiting Bakau setelah moulting. Pertumbuhan panjang carapace, lebar carapace dan berat kepiting bakau pada saat moulting masing – masing secara berurutan dicapai sebesar 12,26 % ± SD 5,57 %, 13, 65 % ± SD 3,59 %, 23,46 % ± SD 10,934 %. Dengan diketahuinya parameter tersebut dapat dipergunakan sebagai parameter penentu pemilihan ukuran Kepiting Bakau sebagai bahan baku produksi kepiting soka yang sesuai dengan ketetapan peraturan pemerintah.  Mangrove crabs (Scylla serrata Forsskål, 1775) is one of the biological resources of the sea, that is used as raw material for soft shell crab production. This organism have economically important value and has been widely cultivated by traditional farmers to meet food needs in both the local and export markets. Assigned KepMen No 1 Tahun 2015 made more mangrove crab culturer and exporter were loss in bussines because the producing soft shell crab was not apropriate with the gorverment regulation. Therefore to solve this problem was importantly done the approach through the research about the change of morphometric of mangrove crab before and after moulting.This research was aimed to know the correlation between carapace length, carapace wide and weight of mangrove crab before and after moulting thats reared in the environment culture of brackishwaterpond area in Mojo Village, Ulujami District, Pemalang Regency. This research used mangrove crab (S. serrata Forsskål, 1775), the body weight size of 80-150 g, individually kept in plastic boxes (30 x 20 x 25 cm), 15 pieces per m2 density. Research was carried out using case study method. The research parameters were aimed on the meassuring of the mangrove crab morphometric before and after moulting, such as: carapace  length, carapace wide and body weight.  Morphometric parameters of mangrove crab body, include the rellation of carapace lenght and body weight, carapace wide and body weight, carapace lenght and carapace wide were analyzed with regression metode (Sudjana, 1982). Carapace  length, carapace wide and body weight before moulting one anothers showed a regression of linier positive model. The same correlation model were showed on the correlation between carapace lenght, carapace wide and body weight of mangrove crab before moulting with the addition of carapace  length, carapace wide and body weight of mangrove crab after moulting, each following order, are: 12,26 % ± SD 5,57 %, 13, 65 % ± SD 3,59 %, 23,46 % ± SD 10,934 %. This parameter could be used as defining parameter to choose the size of mangrove crab as raw material for soft shell crab production that appropriate to the goverment regulation. 

scholarly journals The population and mortality characteristics of mangrove crab (Scylla serrata) in the mangrove ecosystem of Tarakan City, Indonesia

2020 ◽  
Vol 21 (8) ◽  
Author(s):  
AGUS INDARJO ◽  
Gazali Salim ◽  
MUFRIDA ZEIN ◽  
DODDY SEPTIAN ◽  
STEPHANIE BIJA
Keyword(s):  
Carapace Length ◽  
Total Mortality ◽  
Condition Index ◽  
Mangrove Ecosystem ◽  
Scylla Serrata ◽  
Primary Data ◽  
Allometric Growth ◽  
Male And Female ◽  
Mangrove Crab ◽  
Mangrove Crabs

Abstract. Indarjo A, Salim G, Zein M, Septian D, Bija S. 2020. The population and mortality characteristics of mangrove crab (Scylla serrata) in the mangrove ecosystem of Tarakan City, Indonesia. Biodiversitas 21: 3856-3866. The mangrove crab is an iconic species of Tarakan City and is often is used as a souvenir. However, the high demand for this species can cause its population to decline. This study aimed to characterize the mangrove crab (Scylla serrata) population in the mangrove ecosystem of Tarakan City, North Kalimantan, Indonesia. This study was designed using a quantitative descriptive method with a case study model. The samples of mangrove crabs were obtained from 6 different stations using a purposive sampling method. The mangrove crab specimens were caught using 35-50 units of crab traps known as the ambau brackets. The primary data included carapace length, carapace width, carapace thickness, sex, and the total weight of each mangrove crab specimen. The results showed that male mangrove crabs have positive allometric growth when the condition index was fat. However, female crabs exhibited negative allometric growth when the condition index was thin. The Von Bertalanffy growth model analysis showed that the maximum carapace length of male mangrove crab in the mangrove ecosystem of Tarakan City was approximately 11.1118 cm for 189 days, while the female length was 9.6474 cm for 80 days. The total mortality value of male and female crabs was 120.01% and 154.94%, the mortality due to fishing was 84.69% and 135.75%, and natural mortality was 35.32% and 19.2%, respectively. The estimated rate of exploitation of both male and female crabs was 70.57% and 87.61%, respectively. The exploitation of S. serrata in the mangrove ecosystem of Tarakan City was evident, hence, conservation efforts are urgently required.

scholarly journals Pengaruh ekstrak minyak cumi pada umpan bubu terhadap hasil tangkapan kepiting bakau dan rajungan di Perairan Malise Kecamatan Tabukan Tengah

2016 ◽  
Vol 2 (3) ◽  
Author(s):  
Maichel Arvan Pananggung ◽  
Ivor L. Labaro ◽  
Emil Reppie
Keyword(s):  
Coastal Waters ◽  
Scylla Serrata ◽  
Fishing Gear ◽  
Swimming Crab ◽  
Portunus Pelagicus ◽  
Mangrove Crab ◽  
Gill Net ◽  
Oil Extract ◽  
Mangrove Crabs ◽  
By Catch

ABSTRACT Mangrove crab (Scylla serrata) and swimming crab (Portunus pelagicus) are economically important marine commodities produced from the coastal waters of Sangihe Islands Regency. But those marine commodity products are usually only caught accidentally with a bottom gill net. There has been a special trap fishing gear for that resources, but not known well by local fishermen. Addition of squid oil extraction baits could increase the fishing power of mangrove crab and swimming crab traps. This research aims to study the effect of squid oil extract on traps bait to catch mangrove crab and swimming crab; and identify the types of biota captured. This research was done in coastal waters of Malise village, Tabukan Tengah District of Sangihe Islands Regency for 2 weeks September 2015; based on experimental method. Six unit traps were operated ten trips where three units of them used scad mackerel bait that injected with squid oil extract, and tree other units just used scad mackerel bait without extract; and the capture data were analyzed using t test. The catch was 142 individuals (135 mangrove crabs and 7 swimming crab); where 86 crabs was caught by scad mackerel bait with squid oil extract, and 56 crabs caught with bait without squid oil extract. The analysis showed that the use of squid oil extracts on trap baits increased the catch. Keywords: mangrove crab, swimming crab,trap baits, squid oil extract, Sangihe   ABSTRAK[1] Kepiting bakau (Scylla serrata) dan rajungan (Portunus pelagicus) merupakan komoditi hasil laut ekonomis penting yang dihasilkan dari perairan pantai Kabupaten Kepulauan Sangihe. Tetapi komoditi hasil laut tersebut biasanya hanya tertangkap tanpa sengaja (by catch) dengan jaring insang dasar. Sebenarnya telah ada alat tangkap bubu khusus untuk kepiting bakau dan rajungan, tetapi belum dikenal oleh nelayan lokal. Pemberian ekstrak minyak cumi pada umpan, diduga dapat meningkatkan kemampuan tangkap dari bubu kepiting bakau dan rajungan. Penelitian ini bertujuan untuk mempelajari pengaruh ekstrak minyak cumi pada umpan bubu terhadap hasil tangkapan kepiting bakau dan rajungan, dan mengidentifikasi jenis-jenis biota yang tertangkap. Penelitian ini dilakukan di perairan Malise Kecamatan Tabukan Tengah, Kabupaten Kepulauan Sangihe; selama 2 minggu pada bulan September 2015; yang didasarkan pada metode eksperimental. Enam unit bubu dioperasikan selama sepuluh trip untuk mengumpulkan data; di mana tiga unit menggunakan umpan ikan layang yang disuntikan ekstrak minyak cumi, dan tiga unit lainnya hanya menggunakan umpan ikan laying tanpa ekstrak; dan data dianalisis dengan uji t. Tangkapan total berjumlah 142 ekor (135 ekor kepiting bakau dan 7 ekor rajungan); di mana 86 ekor tertangkap dengan umpan layang yang diberi ekstrak minyak cumi, dan 56 ekor tertangkap dengan umpan tanpa ekstrak. Hasil analisis menunjukkan bahwa penggunaan ekstrak minyak cumi pada umpan bubu, memberikan hasil tangkapan yang sangat berbeda dibandingkan dengan umpan tanpa ekstrak minyak cumi. Kata-kata kunci: kepiting bakau, rajungan, umpan bubu, ekstrak minyak cumi, Sangihe  

scholarly journals The spinal adjuvent - intrathecal nalbuphine as effective as intrathecal fentanyl

2020 ◽  
Vol 11 (3) ◽  
pp. 4492-4498
Author(s):  
Pratibha Deshmukh ◽  
Medha Sangawar ◽  
Nikita Dhumne ◽  
Vivek Chakole
Keyword(s):  
Dural Puncture ◽  
Local Anaesthetics ◽  
Hyperbaric Bupivacaine ◽  
Time Duration ◽  
Post Dural Puncture Headache ◽  
Intraoperative Hypotension ◽  
Number Of Patients ◽  
Significant Difference ◽  
To Receive

Opioids are favoured as adjuvants to local anaesthetics for spinal anaesthesia. The present study was aimed to compare the clinical efficiency of intrathecal nalbuphine with fentanyl as an adjuvant to 0.5% hyperbaric bupivacaine. 100 adult patients of either sex, ASA grade I and II, aged 18–60 years were randomized into two groups of 50 each to receive either fentanyl 25 μg (Group BF) or nalbuphine 500µg (Group BN) with 3 ml 0.5% hyperbaric bupivacaine, making drug volume to 3.5 ml in each group. Sensory and motor block characteristics, duration of analgesia, VAS score, haemodynamic and side effects were recorded. The sensorimotor characteristics were comparable and found no significant difference between the two groups, (P>0.05). The time duration for adequate analgesia in group BN was 366.40 ± 37.32min, and in the group, BF was 361.39 ± 43.96min, (P= 0.567). In both, the groups, quality of analgesia during the procedure was excellent in a maximum number of patients (96% each group). Sedation score, hemodynamic and respiratory rate changes were comparable between the two groups. In group BF, 4 (8%) patients complained nausea/ vomiting, pruritus was observed in 2 (4%), intraoperative hypotension in 3 (6%) and bradycardia in 2 (4%) and post-dural puncture headache in 2 patient (4%). In group BN, only bradycardia was observed in 3 (6%) patients. Nalbuphine and fentanyl were found to be equally efficient, but nalbuphine had a lower side effect profile, readily available as it does not come under the Narcotic act. However, we suggest Nalbuphine-bupivacaine combination as a better alternative than fentanyl-bupivacaine combination.

scholarly journals KAJIAN RESIKO KEPITING BAKAU (Scylla serrata) DI ESTUARI MAHAKAM, KALIMANTAN TIMUR

2019 ◽  
Vol 25 (1) ◽  
pp. 15
Author(s):  
Aisyah Aisyah ◽  
Setiya Triharyuni ◽  
Eko Prianto ◽  
Husnah Husnah
Keyword(s):  
Natural Resource ◽  
Scylla Serrata ◽  
Risk Level ◽  
Mud Crab ◽  
Susceptibility Analysis ◽  
Fish Resources ◽  
Mangrove Crab ◽  
Medium Level ◽  
Mangrove Crabs ◽  
Ecosystem Changes

Kawasan estuari merupakan wilayah yang kaya akan unsur hara di daerah pantai. Perubahan ekosistem pantai, seperti terjadinya pendangkalan menyebabkan penurunan luasan mangrove. Dampak yang terjadi merupakan penyumbang bagi kerentanan sumberdaya kepiting bakau di daerah tersebut. Tujuan penelitian ini adalah untuk mengetahui tingkat resiko potensi kerentanan sumber daya kepiting bakau dan keberlanjutannya di estuari Sungai Mahakam Kalimantan Timur. Analisis kerentanan menggunakan perangkat lunak PSA (Productivity and Susceptibility Analysis). Hasil analisis menunjukkan bahwa potensi kepiting bakau di Eestuari Mahakam mempunyai kerentanan tingkat rendah (tingkat kerentanan =1,3). Nilai produktivitas (kemampuan pulih sumber daya) menunjukan nilai yang lebih tinggi (2,1) dari pada nilai susceptabilitas (tingkat resiko sumber daya ikan terhadap aktivitas perikanan di perairan tersebut) yaitu 1,9. Dengan kondisi tersebut maka peluang keberlanjutan ketersediaan kepiting bakau di estuari Mahakam berada dalam tingkat sedang.Estuaries constitute an extremely valuable natural resource in the coastal areas. The coastal ecosystem changes such as deforestation of the estuarine caused the decrease of mangrove forestry. These impacts directly contribute to the vulnerability of mud crab resources. The purpose of this research was to determine the risk level of potential vulnerability of mangrove crab resources in the Mahakam estuary. Vulnerability analysis using Productivity and Susceptibility Analysis (PSA) software. The results showed that mangrove crabs in the Mahakam estuary were low vulnerable (vulnerability level of 1.3). Value of productivity (the ability to recover resources) higher than susceptibility (level of risk of fish resources to fisheries activities in those areas). It, means that the chances for sustainability of mangrove crab in Mahakam estuary were medium level.

scholarly journals Ekosistem mangrove sebagai habitat kepiting bakau (Scylla Serrata) di Kampung Nipah Desa Sei Nagalawan Kecamatan Perbaungan Serdang Bedagai Provinsi Sumatera Utara

DEPIK ◽  
2018 ◽  
Vol 7 (1) ◽  
pp. 84-90
Author(s):  
Sari Marina Saragi ◽  
Desrita Desrita
Keyword(s):  
Regression Analysis ◽  
Correlation Coefficient ◽  
Vegetation Structure ◽  
High Density ◽  
Scylla Serrata ◽  
A Value ◽  
Mangrove Crab ◽  
Mangrove Vegetation ◽  
Mangrove Crabs

Highly Utilization of Mangrove field as cultivation field of fish and recreation and tour site by people have big posses to the abundance of Mangrove crab (Scylla serrata) because of mangrove play role as habitats of mangrove crabs. The research was conducted for two months from December 2016 to January 2017. This study aims to see the structure of mangrove vegetation, the abundance of Mangrove Crab and the influence of mangrove vegetation structure on the abundance of Mangrove Crab in Kampung Nipah. The results of this research are Vegetation structure of Mangrove in the station I and II show high density, whereas density in station III wide apart. The abundance of mangrove crab in the station I and II showed the higher result from station III. The Influence of Vegetation Structure of Mangrove and Abundance of Mangrove Crab can be related by using regression analysis Y = 0.0241x + 113.6. The correlation coefficient (r) that value obtained as 0.79 have a meaning the connection between mangrove density and abundance of mangrove crab are rated in the strong category that has a value 79%. The density of Mangrove to 1000 units will rise up the abundance of mangrove crab to 43.5 an individual. Tingginya pemanfaatan mangrove sebagai lahan budidaya ikan dan sebagai wisata rekreasi oleh masyarakat sangat mempengaruhi kelimpahan Kepiting Bakau (Scylla serrata) karena hutan mangrove merupakan habitat bagi Kepiting Bakau. Penelitian ini dilaksanakan selama dua bulan yaitu bulan Desember 2016 sampai Januari 2017. Penelitian ini bertujuan untuk melihat struktur vegetasi mangrove, kelimpahan Kepiting Bakau dan pengaruh struktur vegetasi mangrove terhadap kelimpahan Kepiting Bakau di Kampung Nipah. Hasil dari penelitian struktur vegetasi mangrove di stasiun I dan II memiliki kerapatan sangat padat, sedangkaan kerapatan di stasiun III jarang. Kelimpahan Kepiting Bakau di Stasiun I dan II lebih tinggi dari kelimpahan di stasiun III. Pengaruh kerapatan mangrove dan kelimpahan Kepiting Bakau diperoleh persamaan regresi yaitu Y = 43,521 +  0,2061x.  Koefisien korelasi (r) yang diperoleh 0,79 yang artinya hubungan kerapatan mangrove dan kelimpahan Kepiting Bakau tergolong kuat yaitu sebesar 79%. Kerapatan mangrove sebanyak 1000 satuan akan meningkatkan kelimpahan Kepiting Bakau sebesar 43,5 individu.

scholarly journals KAJIAN PENDAPATAN NELAYAN KEPITING BAKAU (Scylla serrata) DI KECAMATAN SAMATIGA KABUPATEN ACEH BARAT

2018 ◽  
Vol 5 (1) ◽  
pp. 37
Author(s):  
Teuku Amarullah ◽  
Syarifah Zuraidah ◽  
Gunawan Gunawan
Keyword(s):  
Qualitative Analysis ◽  
Sampling Method ◽  
Scylla Serrata ◽  
Research Purpose ◽  
Selling Price ◽  
Average Amount ◽  
Mangrove Crab ◽  
Gross Income ◽  
Mangrove Crabs ◽  
One Year

The research has been conducted on "The Study of Fishermen’s Income of Mangrove Crabs (Scylla serrata) in the Samatiga District of West Aceh Regency". This research purpose is to analyze the income of fishermen’s mangrove crabs and to determine the feasibility of mangrove crab business. In this research, the sampling method by using census, amount of sampling as much as 11 fishermen. To know the level ofthe income in fishermen mangrove crabs in the Samatiga District by using quantitative and qualitative analysis. The average of amount of mangrove crabs production produced by each fisherman in one year is about 689,23 kg with the selling price of Rp. 50.000/kg. The average amount of gross income earned by each fisherman is Rp. 34,461,818 /year and total costas much as Rp 10,112,455/year, then each fisherman earns a profit as much as Rp. 24.349.362 /year, if calculated in per month as much as Rp. 2,029.113 / month. And per day as much as Rp. 78.042 / day. R / C ratio value that is obtained is 3,40 which means such business is feasible or profitable. Keywords: Study, Fishermen's Income, Mangrove Crabs

scholarly journals Pola Pertumbuhan Kepiting Bakau (Scylla serrata) Di Perairan Desa Bandengan Kendal

2021 ◽  
Vol 10 (1) ◽  
pp. 14-22
Author(s):  
Nila Munana ◽  
Irwani Irwani ◽  
Widianingsih Widianingsih
Keyword(s):  
Growth Pattern ◽  
Full Moon ◽  
Carapace Width ◽  
Scylla Serrata ◽  
Moon Phases ◽  
Mangrove Crab ◽  
Exploratory Data ◽  
New Moon ◽  
Mangrove Crabs ◽  
Mud Crabs

Kepiting bakau (Scylla serrata) merupakan jenis kepiting yang banyak ditemukan di beberapa daerah, salah satunya di Perairan Desa Bandengan, Kendal. Kepiting bakau setiap harinya ditangkap oleh nelayan, keadaan ini dapat mempengaruhi terhadap populasi kepiting bakau. Fase bulan dapat memberikan pengaruh terhadap kepiting bakau, seperti pada tingkah laku kepiting bakau. Tujuan dari penelitian ini yaitu untuk mengetahui pola pertumbuhan kepiting bakau pada  fase bulan mati dan purnama di Perairan Desa Bandengan Kendal. Metode yang digunakan yaitu bersifat deskriptif eksploratif. Pengambilan data dilakukan sebanyak 6 kali periode pada 28 Desember 2019 – 9 Maret 2020, data dari kepiting bakau meliputi panjang karapas, lebar karapas, berat tubuh, jumlah kepiting bakau, dan parameter perairan. Jumlah kepiting bakau yang diperoleh selama penelitian sebanyak 212 ekor bulan mati dan 236 ekor bulan purnama. Hasil penelitian menunjukkan pola pertumbuhan kepiting bakau jantan bulan mati bersifat allometrik positif, sedangkan pada kepiting bakau betina bersifat allometrik negatif. Sedangkan, pada purnama 1 bersifat allometrik positif, bulan purnama 2 dan  bulan purnama 3 bersifat allometrik negatif, sedangkan kepiting bakau betina bersifat allometrik negatif. Mud crab (Scylla serrata) is a type of crab that is found in several areas, one of which is in the waters of Bandengan Village, Kendal. Every day mud crabs are caught by fishermen, this situation can affect the mangrove crab population. The moon phase can affect mud crabs, such as the behavior of mud crabs. The purpose of this study was to determine the growth pattern of mud crabs in the new moon and full moon phases in the waters of the village of Bandengan, Kendal. The method used is descriptive exploratory. Data collection was carried out 6 times during the period on 28 December 2019 - 9 March 2020, data from mud crabs included carapace length, carapace width, body weight, number of mangrove crabs, and water parameters. The number of mud crabs obtained during the study was 212 new moons and 236 full moons. The results showed that the growth pattern of male mud crabs in the new moon was positive allometric, while the female mud crabs were negative allometric. Meanwhile, full moon 1 is allometric positive, full moon 2, and full moon 3 allometric negatives, while female mud crabs are allometric negative.

scholarly journals PENGARUH KARAKTERISTIK HABITAT MANGROVE TERHADAP KEPADATAN KEPITING ( SCYLLA SERRATA ) DI PANTAI UTARA KABUPATEN DEMAK, JAWA TENGAH

2021 ◽  
Vol 5 (2) ◽  
pp. 21-30
Author(s):  
Roni Haposan Sipayung
Keyword(s):  
Mangrove Ecosystem ◽  
Habitat Characteristics ◽  
Scylla Serrata ◽  
Effect Of Temperature ◽  
Mangrove Forests ◽  
Vegetation Density ◽  
Mangrove Crab ◽  
Significant Difference ◽  
Mangrove Vegetation ◽  
Crab Density

Rehabilitation of mangrove forests is very important to maintain ecosystem stability and increase the productivity of mangrove forests. The success of mangrove forest rehabilitation can be seen by the density of mangrove vegetation and the increase in mangrove crabs. Mangrove crab is the main commodity for farming communities because in addition to playing an important role in the mangrove ecosystem, it also has high economic value so it needs to be developed to increase people's income. This research was conducted with the aim of knowing the density of mangrove vegetation and crab density in different planting years and the effect of mangrove habitat characteristics on crab density. The research was conducted in three different planting years, namely 2003, 2005, and 2006. Each planting year consisted of a front zone, a middle zone and a back zone. In each zone a measuring plot with a size of 5 m x 5 m was made to collect data on vegetation density, temperature, mud thickness, salinity, acidity, and dissolved oxygen (DO). Then in the 5 m x 5 m plot, a 1 m x 1 m plot was made to collect data on the number of crabs. Data analysis used regression equation and ANOVA difference test. The results showed that the highest vegetation density was in the back zone of the 2006 planting year with a density of 2160 individuals/ha, while the highest density of crabs was in the 2005 planting year with a density of 12111.11 individuals/ha. Regression analysis showed the effect of temperature, mud thickness and salinity variables on crab density with the equation Y = 3.447 - 0.044X1 - 0.009X2 - 0.230X3 with R = 0.809. In the different ANOVA test, only the thickness of the mud had a significant difference at three years of planting (0.00 < 0.05).

scholarly journals Effect of Environmental Factors on The Relative Fitness and Spatial Distribution of Mangrove Crabs (Scylla spp) in Blok Bedul Segoro Anak, Alas Purwo National Park, Indonesia

2017 ◽  
Vol 18 (2) ◽  
pp. 65
Author(s):  
Mohamad Zaenal Mahfud ◽  
Sudarmadji Sudarmadji ◽  
Wachju Subchan
Keyword(s):  
Spatial Distribution ◽  
Environmental Factors ◽  
National Park ◽  
Relative Fitness ◽  
Scylla Serrata ◽  
Research Station ◽  
Mangrove Forests ◽  
Marine Life ◽  
Mangrove Crab ◽  
Mangrove Crabs

The mangrove forest are natural and renewable. resources Mangrove has the physical, chemicaland biological function which highly support the fulfillment of human needs and serve as a bufferbalance of the ecosystem in coastal areas. One of the functions associated with the mangrovebiological existence as a source of diversity of marine life. Marine life is affected by the presenceof mangrove forests among mangrove crab (Scylla serrata) to maintain the ecological balance andcause the energy cycle running fast. This study aims to determine the condition of environmentalfactors, the relative fitness and spatial distribution of mangrove crabin the mangrove forests BlockBedul Kali Segoro Alas Purwo National Park. Data from the study are described and classified bysimilarity of environmental factors, then performed multiple linear regression betweenenvironmental factors with relative fitness and spatial distribution of mangrove crabs. The resultsshowed that the average relative fitness mangrove crabs at all the research station is 69 with astandard deviation of 13.51. Spatial distribution of mangrove crab at any observation station isless than 1, so it can be concluded that the distribution is uniform. Environmental factors withrelative fitness mud crab significant correlation, but no significant correlation betweenenvironmental factors with the spatial distribution of mangrove crabs. Keywords: Relative Fitnes Crab Mangrove, Mangrove Crab Spatial Distribution, Alas Purwo National Park

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