A comparative study of bait efficiency in the rakkang crab fishery

Iriansyah -; Ahmadi -; Siti Aminah; Sudirman Sukardi; Dalwa Mukarom; Ardiansyah -

doi:10.12714/egejfas.43.1.02

TR EN

Rakkang yengeç avcılığında yem verimliliğinin karşılaştırmalı bir çalışması

Öz

Bu araştırma, Endonezya'nın Tanah Laut Bölgesi, Bawah Layung Köyü'ndeki rakkang tuzaklarıyla ilişkili iki yem türü (küçük yengeçler ve çöp balıkları) arasındaki av kompozisyonu, CPUE (birim çaba başına av miktarı) ve verimliliği analiz etmeyi amaçlamıştır. Kullanılan yöntem, randomize blok tasarımı ile gerçekleşen bir saha deneyidir ve veriler varyans analizi (ANOVA) kullanılarak analiz edilmiştir. Araştırma faaliyetleri Haziran ve Eylül 2025 tarihleri arasında gerçekleştirilmiş olup, bu süre zarfında mangrov alanlarının çevresine toplam 620 adet rakkang ünitesi yerleştirilmiştir. Sonuçlar, rakkang'ın yakaladığı Scylla paramamosain türünün (%77,74), S. tranquebarica türüne (%22,26) göre 3,5 kat daha fazla olduğunu ve türe özgü tercihler gösterdiğini ortaya koymuştur. CPUE ve verimlilik oranları açısından S. paramamosain, S. tranquebarica'dan daha fazla sayıda olduğu tespit edilmiştir (p< 0,05). Küçük yengeçlerle yemlenmiş rakkang tuzaklarının CPUE'si (tuzak başına 0,53 birey), ekonomik olmayan balıklarla yemlenmiş tuzaklara göre (tuzak başına 0,14 birey) önemli ölçüde daha yüksek olduğu saptanmıştır. Benzer şekilde, küçük yengeçlerle (1,71 birey/saat) elde edilen verimlilik oranı, ekonomik olmayan balıklar (1,05 birey/saat) ile elde edilen verimlilik oranından çok daha yüksek bulunmuştur. Küçük yengeç yemlerinin, ekonomik olmayan balıklardan önemli ölçüde daha etkili olduğu kanıtlanmıştır (p<0,05). Bu bulgular, özellikle küçük yengeçlerin kullanılmasıyla yem seçiminin optimize edilmesinin, daha verimli ve sürdürülebilir çamur yengeci balıkçılığına katkıda bulunabileceğini, potansiyel olarak istenmeyen avı azaltabileceğini ve koruma çabalarını destekleyebileceğini göstermektedir. Hem yasal boyuttaki hem de yasal boyutun altındaki yengeçlerin avlanması, pazar talebini sürdürülebilir balıkçılıkla dengelemek için türe özgü yönetime duyulan ihtiyacı vurgulamaktadır.

Anahtar Kelimeler

A comparative study of bait efficiency in the rakkang crab fishery

Abstract

This research aimed to analyze the catch composition, CPUE (Catch per unit effort), and productivity between two bait types (small crabs and trash fish) associated with rakkang traps in Bawah Layung Village, Tanah Laut Regency, Indonesia. The method used was a field experiment with a randomized block design, and the data were analyzed using analysis of variance (ANOVA). Research activities were conducted between June and September 2025, where a total of 620 rakkang units were deployed around mangrove areas. The results showed that the rakkang captured Scylla paramamosain (77.74%) was 3.5 times higher than S. tranquebarica (22.26%), with species-specific preferences. S. paramamosain outnumbered S. tranquebarica in terms of CPUE and productivity rates (p < 0.05). The CPUE for rakkang traps baited with small crabs (0.53 ind./trap) was considerably higher than using trash fish (0.14 ind./trap). Similarly, the productivity rate was much higher with small crabs (1.71 ind./h) compared to trash fish (1.05 ind./h). Small crab bait proved significantly more effective than trash fish (p < 0.05). These findings suggest that optimizing bait choice, specifically using small crabs, can contribute to more efficient and sustainable mud crab fisheries, potentially reducing bycatch and supporting conservation efforts. The capture of both legal-sized and undersized crabs emphasizes the need for species-specific management to balance market demand with sustainable fisheries.

Keywords

Supporting Institution

This research was funded by Lambung Mangkurat University's LPPM.

Ethical Statement

No ethics committee approval is required for this study.

Thanks

The authors would like to thank the local fishermen of Bawah Layung for their assistance and support during fieldwork, as well as the anonymous reviewers for their valuable feedback.

References

Abidin, N., Prafiadi, S., & Yunita, M. (2022). Keanekaragaman spesies kepiting bakau (Scylla sp) di Kawasan Hutan Mangrove Sungai Muturi, Teluk Bintuni. Jurnal Genesis Indonesia, 1(02), 55 65. https://doi.org/10.56741/jgi.v1i02.92
Afriani, A., Banurea, J.S., & Waruwu, R. (2024). The effectiveness of fish traps catch at different depth on Pandaratan beach, Central Tapanuli District. Jurnal Penelitian Terapan Perikanan Kelautan, 6(1), 8-13.
Alfiatunnisa, N., Rachman, F., Setyobudi, E., Djumanto, & Djasmani, S.S. (2020). Application of foldable cube and cylinder fishing pot inTuban Regency water. IOP Conf. Series: Earth and Environmental Science, 404, 012010. https://doi.org/10.1088/1755-1315/404/1/012010
Cahyadinata, I., Fahrudin, A., Sulistiono, & Kurnia, R. (2021). The study of structure and population parameters of mud crab (Scylla serrata) on small outer islands in Indonesia (case study: Enggano Island, Bengkulu Province). AACL Bioflux. 14(4), 2493-2503.
Chakraborty, B.K., Azad, S.A., & Sarker, S. (2018). Present status of mud crabs population in Bangladesh. International Journal of Oceanography and Aquaculture, 2(2), 000134. https://doi.org/10.23880/IJOAC-16000134
Dahle, E.A. (1989). A review of models for fishing operation in applied operations research. In K.B. Halley, (Ed.), Fishing. Nato Scientific Affairs and Lenum Press, New York and London.
Diana, F., Hafinuddin, H., & Ansar, M. (2018). Pengaruh jenis umpan yang berbeda terhadap hasil tangkapan kepiting bakau (Scylla serrata) dengan menggunakan alat tangkap Bubu. Jurnal Perikanan Tropis, 5(2), 119-129. https://doi.org/10.35308/jpt.v5i2.1031
Fazhan, H., Azra, M.N., Halim, S.A., Naimullah, M., Abualreesh, M.H., Shu-Chien, A.C., Wang, Y., Fujaya, Y., Syahnon, M., Ma, H., Waiho, K., & Ikhwanuddin, M. (2022). Species composition, abundance, size distribution, sex ratios, and movementof Scylla mud crabs within the mangrove ecosystem at Setiu Wetland, Terengganu, Malaysia. Frontiers in Marine Science, 9, 899789. https://doi.org/10.3389/fmars.2022.899789

Gustiawan, A., Hertati, R., & Syafrialdi, S. (2018). Pengaruh perbedaan jenis umpan terhadap hasil tangkapan kepiting bakau (Scylla serrata) pada alat tangkap Bubu Lipat (Traps) di perairan muara Sungai Jenggalu Provinsi Bengkulu. SEMAH Jurnal Pengelolaan Sumberdaya Perairan, 2(1). https://doi.org/10.36355/semahjpsp.v2i1.160
Hapsari, T.D., Bambang, A.N., Ghofar, A., & Fitri, A.D.P. (2021). Resource domain assessment of the mud crab (Scylla spp.), based on an ecosystem approach to the fisheries located within the Mojo mangrove ecosystem, Pemalang Regency, Central Java, Indonesia. AACL Bioflux 14(4), 2134-2148
Haqie, M.S., Noor, M.T., Aida, G.R., & Kusaeri, A. (2024). Pengaruh perbedaan jenis umpan segar terhadap hasil tangkapan kepiting bakau (Scylla serrata) pada alat tangkap Bubu Lipat di lingkungan perairan mangrove Kecamatan Panimbang, Banten. Jurnal Perikanan Unram. 14(4), 2337-2343. https://doi.org/10.29303/jp.v14i4.1040
Ikhwanuddin, M., Azmie, G., Juariah, H.M., Abol-Munaﬁ, A.B., Zakaria, M.Z., & Ambak, M. A. (2012). Tracking the movement of mud crabs, genus Scylla from mangrove area using telemetry system. Borneo Science, 30, 40-57.
Jumawan, C.Q., Metillo, E.B., & Polistico, J.P. (2021). Assessment of mud crab fishery in Panguil Bay. The Philippine Journal of Fisheries, 28(1), 18-33. https://doi.org/10.31398/tpjf/28.1.2020A0002
Kabalmay, F.I., Noor, M.T., & Sutoyo, A. (2017). Analisis pengaruh perbedaan waktu tangkap terhadap efektifitas hasil tangkapan kepiting (Scylla sp) menggunakan alat tangkap Bubu di Pantai Timur Surabaya. Jurnal Techno-Fish. 1(2), 86-92. https://doi.org/10.25139/tf.v1i2.1047
Le Vay, L. (2001). Ecology and management of mud crab Scylla spp. Asian Fisheries Science, 14, 101 111. https://doi.org/10.33997/j.afs.2001.14.2.001
Phu, D., Tran, P.D., Nguyen, L.T., To, P.V., & Nguyen, K.Q. (2020). Effects of the trap entrance designs on the catch efficiency of swimming crab Charybdis feriata fishery. Fisheries Research, 323, 105730. https://doi.org/10.1016/j.fishres.2020.105730
Putri, A., Bengen, D.G., Zamani, N.P., Salma, U., Kusuma, N.P., Diningsih, N.T., & Kleinertz, S. (2022). Mangrove habitat structure of mud crabs (Scylla serrata and S. olivacea) in the Bee Jay Bakau Resort Probolinggo, Indonesia. Ilmu Kelautan: Indonesian Journal of Marine Sciences, 27(2), 124-132. https://doi.org/10.14710/ik.ijms.27.2.124-132
Riyanto, M., Wisudo, S.H., Rufiati, I., Fachri, F.R., Septiani, W.D., Inayah, Rukim, M. Ilyas, G.N., de la Rosa, E., & Saputra, R. (2025). Length-based stock assessment of Scylla serrata (Forskål, 1775) in Hilir, Riau Province, Indonesia. Egyptian Journal of Aquatic Research, 51(2), 217-224. https://doi.org/10.1016/j.ejar.2025.02.004
Rosalina, D., & Utami, E. (2021). Duration of Rakkang operation on mangrove crab catch. Jurnal Kelautan, 14(2), 203 209. https://doi.org/10.21107/jk.v14i2.10670
Sakti, A.S.W. (2020). Keanekaragaman jenis kepiting bakau (Scylla sp) yang tertangkap di perairan estuarin Desa Muara Kintap Kabupaten Tanah Laut. Fakultas Perikanan dan Kelautan. Universitas Lambung Mangkurat.
Sharif, N.A.M., Kahar, N.A.S., Hussein, M.A.S., Ransangan, J., & Yong, A.S.K. (2019). Species diversity and distribution of mud crab in Marudu Bay mangrove forest reserve, Sabah, Malaysia. Borneo Journal of Marine Science and Aquaculture, 3(1), 18 24. https://doi.org/10.51200/bjomsa.v3i1.1709
Supeni, E.A., Iriansyah, Ariska, Alfarizi, D.M., & Warni, E.R. (2020). Empowerment of Rakkang fishermen in Sungai Loban Village, Tanah Bumbu District. AQUANA: Jurnal Pengabdian kepada Masyarakat, 1(2), 44-51.
Tahmid, M., Fahrudin, A., & Wardiatno, Y. (2015). Study of size structure and population mud crab (Scylla serrata) in mangrove ecosystem Bintan Gulf, Riau Islands. Jurnal Biologi Tropis, 15(2), 93-106.
Yulisti, M., Hidayat, A.S., Firdausy, C.M., Mu'awanah, U., Kurniasari, N., & Nurjati, E. (2024). Effects of eco-friendly fishing gears on fishermen's welfare and sustainable fisheries: Lessons learned from Indonesia. Marine Pollution Bulletin, 198, 115888. https://doi.org/10.1016/j.marpolbul.2023.115888

Details

Primary Language

English

Subjects

Fisheries Technologies , Aquaculture and Fisheries Stock Assessment

Journal Section

Research Article

Authors

Iriansyah -
0009-0003-3842-1353
Indonesia

Ahmadi - ^*
0000-0001-9691-9107
Indonesia

Siti Aminah
0009-0004-6222-3207
Indonesia

Sudirman Sukardi
0009-0000-9057-1402
Indonesia

Dalwa Mukarom
0009-0005-3602-7082
Indonesia

Ardiansyah -
0009-0007-1883-0802
Indonesia

Publication Date

February 13, 2026

Submission Date

September 27, 2025

Acceptance Date

December 12, 2025

Published in Issue

Year 2026 Volume: 43 Number: 1

DOI

https://doi.org/10.12714/egejfas.43.1.02

IZ

https://izlik.org/JA99EP55EF

Cite

RIS / Bibtex

APA

-, I., -, A., Aminah, S., Sukardi, S., Mukarom, D., & -, A. (2026). A comparative study of bait efficiency in the rakkang crab fishery. Ege Journal of Fisheries and Aquatic Sciences, 43(1), 9-16. https://doi.org/10.12714/egejfas.43.1.02