HUBUNGAN LEBAR KARAPAS DAN BERAT KEPITING BAKAU (Scylla spp.) HASIL TANGKAPAN DI DESA KAHYAPU PULAU ENGGANO PROVINSI BENGKULU

Nurlaila Ervina Herliany, Z Zamdial

Abstract


Informasi biologi perikanan diperlukan untuk mengetahui status suatu komoditas perikanan di alam, terutama untuk komoditas bernilai ekonomis tinggi seperti kepiting bakau. Salah satu daerah penangkapan kepiting bakau di alam adalah Desa Kahyapu, Pulau Enggano, Provinsi Bengkulu. Tujuan penelitian ini adalah untuk mengumpulkan informasi biologi kepiting bakau di Desa Kahyapu, Pulau Enggano, khususnya informasi mengenai hubungan lebar karapas dan berat kepiting bakau. Sampel kepiting bakau (jantan dan betina) dari hutan mangrove di Desa Kahyapu, Pulau Enggano. Penelitian ini menggunakan 3 stasiun pengamatan, setiap statiun dibagi menjadi 3 transek garis dengan masing-masing 3 plot (ukuran 10x10 m) tiap transek garis. Tiap plot dipasang bubu sebanyak 3 buah selama 14 hari. Hasil pengamatan menunjukkan bahwa kepiting bakau jantan lebih banyak tertangkap dengan nisbah kelamin jantan dan betina adalah 1: 0,47. Lebar karapas kepiting bakau jantan berkisar antara 70 – 193 mm (67,65% telah dewasa kelamin), sedangkan lebar karapas kepiting bakau betina berkisar antara 83 – 180 mm (93,75% telah dewasa kelamin). Pola pertumbuhan kepiting bakau baik jantan maupun betina adalah allometrik negatif (b < 3).

Kata kunci: berat, Enggano, Kahyapu, karapas, kepiting bakau

THE RELATIONSHIP BETWEEN THE WIDTH OF CARAPACE AND THE WEIGHT OF CAUGHT MANGROVE CRAB (Scylla spp.) IN KAHYAPU VILLAGE, ENGGANO ISLAND, BENGKULU PROVINCE

ABSTRACT

Biological information of fisheries is necessary to know the status of certain fisheries commodity in nature, especially for the high-economical-valued commodity like the mangrove crab. One of natural mangrove crab fishing grounds is Kahyapu Village, Enggano Island, Bengkulu Province. The objective of this research is to collect biological information of mangrove crab in Kahyapu Village, Enggano Island, especially the information about the relationship between the width of carapace and the weight of mangrove crab. The samples of mangrove crab (male and female) were taken from mangrove forest in Kahyapu Village, Enggano Island. This research used 3 observation stations. Each station was divided into 3 line transects each had 3 plots (the size was 10 x 10 m) for each line transect. Each plot was installed by 3 fish traps for 14 days. The observation result showed that the mostly caught were male mangrove crabs, the comparison between the caught male and female mangrove crabs were 1: 0.47. The width of male mangrove crab’s carapaces were about 70 to 193 mm (67.65% were the adult ones), while the width of female mangrove crab’s carapaces were about 83 – 180 mm (93.75% were the adult ones). The growth pattern of both male and female mangrove crabs was negative allometric (b < 3).

Keywords: carapace, Enggano, Kahyapu, mangrove crab, weight


References


Afrianto, E., & Liviawaty, E. (1993). Pemeliharaan kepiting. Yogyakarta: Kanisius.

Anggraini, E. (1991). Regenerasi alat gerak, pertambahan bobot tubuh pasca lepas cangkang, dan kajian morfometrik kepiting bakau (Scylla serrata Forskal) di rawa payau muara Sungai Cikaso, Kabupaten Sukabumi. Skripsi. Fakultas Perikanan dan Ilmu Kelautan, Institut Pertanian Bogor. Bogor.

Atar, H. H., & Seter, S. (2003). Width/length-weight relationship of blue crab (Callinectes sapidus Rathbun 1986) population living in Beymelek Lagoon Lake. Turkey Journal of Vet. Animal Sciences, 27, 443-447.

Bonine, K. M., Bjorkstedt, E. P., Ewel, K. C., & Palik, M. (2008). S. serrata (decapoda): population characteristic of the mangrove crab Portunidae) in Kosrae, Federation States of Micronesia: effect of harvest and implications for management. Journal Pacific Science, 62, 1-19.

Chairunnisa, R. (2004). Kelimpahan kepiting bakau (Scylla sp.) di kawasan hutan mangrove KPH Batu Ampar, Kabupaten Pontianak, Kalimantan Barat. Skripsi. Fakultas Perikanan dan Ilmu Kelautan, Institut Pertanian Bogor. Bogor.

Effendie, M. I. (1997). Biologi perikanan. Yogyakarta: Yayasan Pustaka Nusatama.

Hill, B. J. (1975). Abundance, breeding and growth of the crab Scylla serrata in two South African estuaries. Marine Biology, 32, 119–126.

KKP [Kementerian Kelautan dan Perikanan]. (2012). Kelautan dan perikanan dalam angka 2012. Jakarta: Kementerian Kelautan dan Perikanan.

KKP [Kementerian Kelautan dan Perikanan]. (2015). Enggano. Direktori Pulau-Pulau Kecil Indonesia, Kementerian Kelautan dan Perikanan. Jakarta. http://www.ppk-kp3k.kkp.go.id/direktori-pulau/index.php/public_c/pulau_info/295. Akses tanggal 24 Agustus 2015.

Khan, M., & Mustaqeem, J. (2013). Carapace width weight relationship of mud crab Scylla serrata (Forskal, 1775) from Karachi Coast. Canadian Journal of Pure and Applied Sciences, 7(2), 2381-2386.

Kordi, M. (1997). Budidaya kepiting dan bandeng di tambak sistem polikultur. Semarang: Dahara Prize.

Lusiani, D. (2015). Hubungan kepadatan kepiting bakau (Scylla spp) dengan kerapatan mangrove di Desa Kahyapu, Kecamatan Enggano, Bengkulu Utara. Skripsi. Fakultas Pertanian, Universitas Bengkulu. Bengkulu.

Mohaptra, A., Rajeeb, K. M., Surya, K. M., & Dey, S. K. (2010). Carapace width and weight relationship, condition factor and gonado-somatic index (GSI) of mud crabs (Scylla spp.) from Chilika Lagoon, India. Indian Journal of Marine Science, 39(1), 120-127.

Rachmawati, P. F. (2009). Analisa variasai karakter morfometrik dan meristik kepiting bakau (Scylla spp) di Perairan Indonesia. Skripsi. Fakultas Perikanan dan Ilmu Kelautan, Institut Pertanian Bogor. Bogor.

Siahainenia, L. (2008). Bioekologi kepiting bakau (Scylla spp) di ekosistem mangrove Kabupaten Subang Jawa Barat. Disertasi. Sekolah Pascasarjana Institut Pertanian Bogor. Bogor.

Tanod, A. L. (2000). Studi pertumbuhan dan reproduksi kepiting bakau (Scylla serrata, Scylla tranqueberica, Scylla oceanica) di Segara Anakan, Kabupaten Cilacap, Jawa Tengah. Skripsi. Fakultas Perikanan dan Ilmu Kelautan, Institut Pertanian Bogor. Bogor.

Wijaya, N. I., Fredinan, Y., Mennofatria, B., & Sri, J. (2010). Biologi populasi kepiting bakau (Scylla serrata F.) di habitat mangrove Taman Nasional Kutai, Kabupaten Kutai Timur. Oseanologi dan Limnologi di Indonesia, 36(3), 443-461.




DOI: https://doi.org/10.21107/jk.v8i2.818

Refbacks

  • There are currently no refbacks.







 INDEXED BY:
ISSN: 1907-9931 (Printed), 2476-9991 (Online)