Sustainable Crab Fishing with Rakkang (Stick Dip Nets): Catch Performance and Socio Economic Evaluation in Tanah Laut, Indonesia

Ahmadi Ahmadi

Makale detayları

Sustainable Crab Fishing with Rakkang (Stick Dip Nets): Catch Performance and Socio Economic Evaluation in Tanah Laut, Indonesia

Yazarlar:

Ahmadi Ahmadi

Yayıncı:

Çanakkale Onsekiz Mart University

Ana Başlıklar:

Balıkçılık Yönetimi | Su Ürünleri Teknolojileri

Dergi:

Çanakkale Onsekiz Mart University Journal of Marine Sciences and Fisheries Vol.8 Issue 1, pp.75-86

Belge Tipi:

Makale

Yayın Tarihi:

7/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001354701

pISSN:

2651-5326

Anahtar kelimeler:

Özet:

 This study aims to evaluate the catch performance and socio-economic relevance of traditional stick dip nets, by comparing two types, Rakkang-A in Muara Kintap and Rakkang-B in Bawah Layung, Tanah Laut Regency, Indonesia. The fieldworks were conducted between September and October 2024. A total of 580 Rakkang were deployed in the mangrove areas, with sample size: Rakkang-A n  73 lifts, 10.430.04 and Rakkang-B n  71 lifts, 10.142.89. The crab catch data on Scylla serrata and S. olivacea were collected, and statistical analysis was performed to determine significant differences in catch rates. Results showed that the two Rakkang types effectively captured both S. serrata and S. olivacea, but with species-specific preferences. Rakkang-A was more effective for S. olivacea, while Rakkang-B yielded higher catches of S. serrata. Catch per unit effort CPUE analysis revealed that Rakkang-A had a higher CPUE for S. olivacea 0.14 indtrap compared to Rakkang-B 0.05 indtrap. Conversely, both Rakkang types performed equally for S. serrata 0.16 indtrap. Overall, CPUE of Rakkang-A 0.300.03 was approximately 1.34 times greater than that of Rakkang-B 0.220.05. The bait selection played a crucial role, with S. olivacea being more attracted to fish bait, whereas S. serrata preferred crab bait. These findings highlight the importance of selecting the appropriate Rakkang type and bait for optimizing crab fishing efficiency. Further research on environmental factors and gear modifications could enhance sustainability and economic viability for local fishers.

 This study aims to evaluate the catch performance and socio-economic relevance of traditional stick dip nets, by comparing two types, Rakkang-A in Muara Kintap and Rakkang-B in Bawah Layung, Tanah Laut Regency, Indonesia. The fieldworks were conducted between September and October 2024. A total of 580 Rakkang were deployed in the mangrove areas, with sample size: Rakkang-A n  73 lifts, 10.430.04 and Rakkang-B n  71 lifts, 10.142.89. The crab catch data on Scylla serrata and S. olivacea were collected, and statistical analysis was performed to determine significant differences in catch rates. Results showed that the two Rakkang types effectively captured both S. serrata and S. olivacea, but with species-specific preferences. Rakkang-A was more effective for S. olivacea, while Rakkang-B yielded higher catches of S. serrata. Catch per unit effort CPUE analysis revealed that Rakkang-A had a higher CPUE for S. olivacea 0.14 indtrap compared to Rakkang-B 0.05 indtrap. Conversely, both Rakkang types performed equally for S. serrata 0.16 indtrap. Overall, CPUE of Rakkang-A 0.300.03 was approximately 1.34 times greater than that of Rakkang-B 0.220.05. The bait selection played a crucial role, with S. olivacea being more attracted to fish bait, whereas S. serrata preferred crab bait. These findings highlight the importance of selecting the appropriate Rakkang type and bait for optimizing crab fishing efficiency. Further research on environmental factors and gear modifications could enhance sustainability and economic viability for local fishers.

 This study aims to evaluate the catch performance and socio-economic relevance of traditional stick dip nets, by comparing two types, Rakkang-A in Muara Kintap and Rakkang-B in Bawah Layung, Tanah Laut Regency, Indonesia. The fieldworks were conducted between September and October 2024. A total of 580 Rakkang were deployed in the mangrove areas, with sample size: Rakkang-A n  73 lifts, 10.430.04 and Rakkang-B n  71 lifts, 10.142.89. The crab catch data on Scylla serrata and S. olivacea were collected, and statistical analysis was performed to determine significant differences in catch rates. Results showed that the two Rakkang types effectively captured both S. serrata and S. olivacea, but with species-specific preferences. Rakkang-A was more effective for S. olivacea, while Rakkang-B yielded higher catches of S. serrata. Catch per unit effort CPUE analysis revealed that Rakkang-A had a higher CPUE for S. olivacea 0.14 indtrap compared to Rakkang-B 0.05 indtrap. Conversely, both Rakkang types performed equally for S. serrata 0.16 indtrap. Overall, CPUE of Rakkang-A 0.300.03 was approximately 1.34 times greater than that of Rakkang-B 0.220.05. The bait selection played a crucial role, with S. olivacea being more attracted to fish bait, whereas S. serrata preferred crab bait. These findings highlight the importance of selecting the appropriate Rakkang type and bait for optimizing crab fishing efficiency. Further research on environmental factors and gear modifications could enhance sustainability and economic viability for local fishers.

 Bu çalışma, Endonezya, Tanah Laut Regency, Muara Kintaptaki Rakkang-A ve Bawah Layungdaki Rakkang-B olmak üzere iki türü karşılaştırarak, geleneksel katlanabilir sepetlerin yakalama performansını ve sosyo-ekonomik önemini değerlendirmeyi amaçlamaktadır. Saha çalışmaları Eylül ve Ekim 2024 arasında yürütülmüştür. Mangrov alanlarına toplam 580 Rakkang konuşlandırılmış olup, örneklem büyüklüğü şu şekildedir: Rakkang-A n  73 kaldırma, 10,43  0,04 ve Rakkang-B n  71 kaldırma, 10,14  2,89. Scylla serrata ve S. olivaceada yengeç yakalama verileri toplanmıştır ve yakalama oranlarındaki önemli farklılıkları belirlemek için istatistiksel analiz yapılmıştır. Sonuçlar, iki Rakkang türünün hem S. serratayı hem de S. olivaceayı etkili bir şekilde yakaladığını, ancak türlere özgü tercihlerin olduğunu göstermiştir. Rakkang-A, S. olivacea için daha etkiliyken, Rakkang-B daha fazla S. Serratayı avlamıştır. Birim çaba başına yakalama CPUE, Rakkang-Anın S. olivacea için 0,14 indtuzak Rakkang-Bye 0,05 indtuzak kıyasla daha yüksek bir CPUEye sahip olduğunu ortaya koydu. Tersine, her iki Rakkang tipi de S. serrata için eşit performans gösterdi 0,16 indtuzak. Genel olarak, Rakkang-Anın CPUEsi 0,30  0,03, Rakkang-Bden 0,22  0,05 yaklaşık 1,34 kat daha fazlaydı. Yem seçimi önemli bir rol oynadı; S. olivacea balık yemine daha çok çekilirken, S. serrata yengeç yemini tercih etti. Bu bulgular, yengeç avcılığının verimliliğini optimize etmek için uygun Rakkang tipini ve yemini seçmenin önemini vurgulamaktadır. Çevresel faktörler ve ekipman değişiklikleri üzerine daha fazla araştırma yapılması, yerel balıkçılar için sürdürülebilirliği ve ekonomik uygulanabilirliği artırabilir.

Makale detayları

Sustainable Crab Fishing with Rakkang (Stick Dip Nets): Catch Performance and Socio Economic Evaluation in Tanah Laut, Indonesia

Yazarlar:

Ahmadi Ahmadi

Yayıncı:

Çanakkale Onsekiz Mart University

Ana Başlıklar:

Balıkçılık Yönetimi | Su Ürünleri Teknolojileri

Dergi:

Çanakkale Onsekiz Mart University Journal of Marine Sciences and Fisheries Vol.8 Issue 1, pp.75-86

Belge Tipi:

Makale

Yayın Tarihi:

7/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001354701

pISSN:

2651-5326

Crab fishery

Productivity

Sustainability

Indonesia

Blue economyYengeç balıkçılığı

Üretkenlik

Sürdürülebilirlik

Endonezya

Mavi ekonomi

Sayı

Makale detayları

Yazarlar: Ahmadi Ahmadi

Yayıncı: Çanakkale Onsekiz Mart University

Ana Başlıklar: Balıkçılık Yönetimi | Su Ürünleri Teknolojileri

Dergi: Çanakkale Onsekiz Mart University Journal of Marine Sciences and Fisheries Vol.8 Issue 1, pp.75-86

Belge Tipi: Makale

Yayın Tarihi: 7/2025

Belge Dili: İngilizce

Document ID (Org No.): 2001354701

pISSN: 2651-5326

Sayı

Yazarlar:

Ahmadi Ahmadi

Yayıncı:

Çanakkale Onsekiz Mart University

Ana Başlıklar:

Balıkçılık Yönetimi | Su Ürünleri Teknolojileri

Dergi:

Çanakkale Onsekiz Mart University Journal of Marine Sciences and Fisheries Vol.8 Issue 1, pp.75-86

Belge Tipi:

Makale

Yayın Tarihi:

7/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001354701

pISSN:

2651-5326