Kelimpahan dan pola pertumbuhan kepiting bakau (Scylla serrata) di hutan mangrove Kelurahan Belawan Sicanang, Kecamatan Medan Belawan, Provinsi Sumatera Utara

Siringoringo, Yenni Ningsih; Desrita, Desrita; Yunasfi, Yunasfi

doi:10.29103/aa.v4i1.320

Cited by 22 publications

(23 citation statements)

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“…This result is different from that of female mangrove crabs, which have negative allometric growth properties (Table 3) due to the value of b less than 3. The negative growth of female mangrove crabs was observed in other research of S. serrata in the mangrove forest, Village of Belawan Sicanang, Sub-district of Medan Belawan, Province of North Sumatra (Siringoringo et al 2017). Effendie (2002) stated that if the value of b < 3, then the growth of female mangrove crabs has negative allometry.…”

Section: Results Of Allometry Growthmentioning

confidence: 77%

“…The central government's Ministry of Maritime Affairs and Fisheries of the Republic of Indonesia, which was in PERMEN-KP No.1 of 2015, regulates the re-release of mangrove crabs. The ministry reported that mangrove crab sizes were below the catchable standards of > 150 mm and for females that had mature gonads (mangrove crab lay eggs) (Fitri et al 2017, Siringoringo et al 2017). A study to analyze the growth trait model and condition index of mangrove crabs (Scylla serrata) originating from estuary waters of Tarakan City (Salim et al 2018) was previously conducted, and the results showed that the crabs exhibited negative allometric growth.…”

Section: Introductionmentioning

confidence: 99%

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

Indarjo

Salim

Zein³

et al. 2020

Biodiversitas

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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.

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Section: Results Of Allometry Growthmentioning

confidence: 77%

Section: Introductionmentioning

confidence: 99%

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

Indarjo

Salim

Zein³

et al. 2020

Biodiversitas

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“…Sebagaimana kriteria baku kerusakan mangrove yang telah ditetapkan oleh Kementerian Lingkungan Hidup dan Kehutanan No. 201 tahun 2004 yaitu kriteria baik (sangat padat (kerapatan ≥ 1500), sedang (kerapatan ≥ 1000 -< 1500) dan kriteria rusak/jarang (kerapatan < 1000) (Siringoringo et al, 2017). Komposis jenis mangrove bila dilihat dari distribusi setiap stasiun, maka Stasiun 2 memiliki komposisi jenis lebih banyak yaitu 12 jenis dan terendah pada Stasiun 1 (10 jenis).…”

Section: Gambar 1 Hasil Analisis Kerapatan Jenis Mangroveunclassified

Kajian Kesesuaian, Daya Dukung, Dan Aktivitas Ekowisata Di Kawasan Mangrove Desa Tuada Kecamatan Jailolo Kabupaten Halmahera Barat

Abubakar

Subur

Darmawaty

et al. 2019

j.eng

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Pengembangan wisata mangrove memerlukan kesesuaian sumberdaya dan lingkungan yang sesuai dengan yang disyaratkan. Kesesuaian karakteristik sumber daya dan lingkungan untuk pengembangan wisata dilihat dari aspek keindahan alam, keamanan dan keterlindungan kawasan, keanekaragaman biota, keunikan sumber daya dan aksesibilitas. Tujuan penelitian yaitu menghitung indeks kesesuaian kawasan untuk pengembangan ekowisata mangrove, menghitung daya dukung kawasan dan mengidentifikasi jenis kegiatan wisata yang dapat dilakukan dalam kawasan mangrove. Metode yang digunakan adalah metode survei yaitu pengukuran secara langsung untuk mengetahui kondisi biofisik mangrove. Hasil analisis Indeks Kesesuaian Wisata (IKW) baik stasiun i, stasiun 2 dan stasiun 3 maupun secara keseluruhan menunjukkan kawasan hutan mangrove di Desa Tuada Kecamatan Jailolo berada pada kategori S1 (sangat sesuai). Jumlah Daya Dukung Kawasan (DDK) untuk kegiatan tracking adalah 34 orang/hari, kegiatan piknik sebanyak 56 orang/hari dan kegiatan camping sebanyak 13 orang. Total daya dukung kawasan wisata mangrove Desa Tuada adalah 102 orang/hari. Aktivitas kegiatan ekowisata mangrove Desa Tuada setiap hari dibuka mulai jam 06.00 – 18.00 WIT. Namun kunjungan wisata lebih banyak pada hari sabtu dan minggu. Tenaga kerja merupakan masyarakat lokal Desa Tuada. Aktivitas wisata yang direkomendasikan terdiri dari Tracking, berperahu, memancing, bird watching dan berenang (10%). Sedangkan fasilitasi wisata yang direkomendasikan berupa Waserda, penginapan, tempat ibadah dan tempat sampah.STUDY OF CONFORMITY, CARRIYING CAPACITY, AND ECOTOURISM ACTIVITIES IN THE MANGROVE AREA OF TUADA VILLAGE, JAILOLO DISTRICT, WEST HALMAHERA REGENCY. Development of mangrove tourism requires the suitability of resources and environment that are in accordance with what is required. Conformity of resource and environmental characteristics for tourism development is seen from aspects of natural beauty, regional security and protection, biota diversity, uniqueness of resources and accessibility. The research objective is to calculate the regional suitability index for the development of mangrove ecotourism, calculate the carrying capacity of the area and identify the types of tourism activities that can be carried out in the mangrove area. The method used is the survey method that is direct measurement to determine the mangrove biophysical conditions. The results of the Tourism Conformity Index (IKW) analysis of Station I, Station 2 and Station 3 as well as overall show that the mangrove forest in Tuada Village, Jailolo District is in the S1 category (very suitable). The amount of Regional Carrying Capacity (DDK) for tracking activities is 34 people / day, picnic activities as many as 56 people / day and camping activities as many as 13 people. The total carrying capacity of the mangrove tourism area in Tuada Village is 102 people / day. Mangrove ecotourism activities in Tuada Village are open daily from 06.00 - 18.00 WIT. But more tourist visits on Saturdays and Sundays. The workforce is the local community of Tuada Village. Recommended tourism activities consist of Tracking, boating, fishing, bird watching and swimming (10%). While the recommended tourism facilitation is a regional legislative body, lodging, place of worship and trash can.

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“…Bahasan Ukuran kepiting bakau (S. serrata) yang tertangkap oleh alat tangkap bubu di perairan Sebatik berkisar antara 84-144 mmCW. Ukuran kepiting bakau di daerah penelitian lebih besar dibandingkan kepiting bakau yang tertangkap di perairan Subang (57-125 mmCW) dan perairan Belawan Sicanang, Sumatera Utara (46-121 mmCW) dan lebih kecil dibandingkan kepiting bakau yang tertangkap bubu di perairan Pasaman Barat dan yang tertangkap jaring insang di perairan Lawele, Sulawesi (120-200 mmCW) (Kumalah et al, 2017;Siringoringo et al, 2017;Hidayat et al, 2018;Sara et al, 2010) Pola pertumbuhan kepiting bakau jantan bersifat allometrik positif (b=3,6) sedangkan pertumbuhan kepiting bakau betina bersifat allometrik negatif (b=2,53). Kondisi tersebut menunjukkan pertumbuhan berat kepiting bakau jantan lebih cepat dibandingkan lebar karapasnya sebaliknya pertumbuhan lebar karapas k epiting bakau betina lebih cepat dibandingkan beratnya.…”

Section: -196unclassified

PARAMETER POPULASI DAN TINGKAT PEMANFAATAN KEPITING BAKAU (Scylla serrata Forsskal, 1775) DI PERAIRAN SEBATIK, KALIMANTAN UTARA

Tirtadanu

Chodrijah

2018

JURNAL PENELITIAN PERIKANAN INDONESIA

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Salah satu informasi yang diperlukan untuk merumuskan pengelolaan kepiting bakau (Scylla serrata Forsskal, 1775) yang berkelanjutan adalah parameter populasi dan tingkat pemanfaatannya. Penelitian ini bertujuan untuk mengkaji parameter populasi dan tingkat pemanfaatan kepiting bakau di perairan Sebatik. Penelitian dilakukan pada Maret-Desember 2017. Sampel kepiting bakau di peroleh dari hasil tangkapan nelayan dengan alat tangkap bubu di perairan Sebatik. Pertumbuhan dianalisis berdasarkan persamaan Von Bertalanffy dengan mengamati pergeseran struktur ukuran kepiting tiap bulan dan tingkat pemanfaatan diperoleh dari metode kurva konversi panjang dengan hasil tangkapan. Hasil penelitian menunjukkan kepiting bakau yang tertangkap bubu di perairan Sebatik berukuran lebar karapas (carapace width) antara 84-144 mmCW dengan rata-rata ukuran yang tertangkap adalah 107,05±12,3 mmCW pada kepiting jantan dan 110,2±8,86 mmCW pada kepiting betina. Pertumbuhan berat kepiting bakau jantan lebih cepat dibandingkan ukurannya (b=3,6) sebaliknya pertumbuhan berat kepiting bakau betina lebih lambat dibandingkan ukurannya (b=2,5). Nisbah kelamin kepiting bakau menunjukkan kondisi tidak seimbang (5,5 : 1) dengan proporsi jantan lebih dominan dibandingkan betina. Lebar karapas asimptotik (CW) kepiting bakau jantan adalah 151,2 mmCW dan betina adalah 140,5 mmCW. Laju pertumbuhan (K) kepiting bakau adalah 0,75 tahun-1 pada kepiting jantan dan 0,79 tahun-1 pada kepiting betina. Status pemanfaatan kepiting bakau telah berada dalam tahapan mendekati lebih tangkap (E=0,5-0,55) sehingga disarankan tidak melakukan penambahan upaya penangkapan kepiting bakau di perairan Sebatik. One of the information needed for formulating the sustainable management of mud crab is the availability of information on the population parameters and its exploitation rate. The current research aimed to study the population parameters and the exploitation rate of mud crab in Sebatik Waters. Field research was conducted in March – December 2017. Samples of mud crab were obtained from the catch of fisherman by trap in Sebatik Waters. The Von Bertalanffy growth parameters were constructed through monthly modals progression analysis of the size of carapace width frequencies distributions and the exploitation rate was estimated through the method of length converted catch curve. The results showed that the carapace width of mud crabs caught by trap in Sebatik Waters ranged between 84 to 144 mmCW with the mean size of 107.05±12.3 mmCW for male and 110.2±8.86 mmCW for female. The growth of weights of male crab (b=3.6) is faster than its size, while the growth of weight of female crab was slower than its size (b=2,5). The sex ratio of mud crab was unbalanced (5.5 : 1) that the proportion of male was more dominant than female. Asymptotic carapace width (CW) of mud crab was 151.2 mmCW for male and 140.5 mmCW for female. The growth rate (K) of mud crab was 0.75 year-1 for male and 0.79 year-1 for female. The exploitation status of mud crab was starting to overfishing (E=0,5-0,55) so it suggest to not increase the fishing effort of mud crab fishery in Sebatik Waters.

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Kelimpahan dan pola pertumbuhan kepiting bakau (Scylla serrata) di hutan mangrove Kelurahan Belawan Sicanang, Kecamatan Medan Belawan, Provinsi Sumatera Utara

Cited by 22 publications

References 0 publications

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

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

Kajian Kesesuaian, Daya Dukung, Dan Aktivitas Ekowisata Di Kawasan Mangrove Desa Tuada Kecamatan Jailolo Kabupaten Halmahera Barat

PARAMETER POPULASI DAN TINGKAT PEMANFAATAN KEPITING BAKAU (Scylla serrata Forsskal, 1775) DI PERAIRAN SEBATIK, KALIMANTAN UTARA

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