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All Journal Buletin PSP Maspari Journal JOURNAL OF COASTAL DEVELOPMENT Albayan : Journal of Islam and Muslim Societies
Dahri Iskandar Dahri Iskandar
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Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology Law, Crime, Criminology & Criminal Justice Social Sciences Other

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PENGARUH POSISI UMPAN TERHADAP HASIL TANGKAPAN BUBU LIPAT Dahri Iskandar; Rahmad Caesario
Buletin PSP Vol. 21 No. 1 (2013): Buletin PSP
Publisher : Institut Pertanian Bogor

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Abstract

Penelitian ini bertujuan untuk menentukan jumlah hasil tangkapan yang tertangkap pada bubu lipat dengan posisi pemasangan umpan yang berbeda. Penelitian ini menggunakan bubu lipat yang biasa digunakan oleh nelayan untuk menangkap kepiting bakau di Perairan Subang. Hasil penelitian menunjukkan bahwa selama penelitian hasil tangkapan dominan adalah kepiting batu (Thalamita sp.) dengan jumlah 87 ekor atau 36% dari total hasil tangkapan, diikuti oleh rajungan (Portunus pelagicus) sebanyak 49 ekor atau setara dengan 20% dari total hasil tangkapan. Berdasarkan uji Mann-Whitney terhadap total hasil tangkapan bubu dan bobot hasil tangkapan bubu dengan posisi umpan yang berbeda, diperoleh nilai Asympt.Sig.(2-tailed) sebesar 0,761 pada taraf nyata 0,05. Hal ini menunjukkan bahwa tidak terdapat perbedaan yang nyata terhadap jumlah hasil tangkapan bubu dengan posisi umpan yang berbeda.Kata kunci: umpan, bubu lipat, hasil tangkapan
Efisiensi Teknis dan Ekonomi Alat Tangkap Garuk dan Peluang Pengembangannya di Desa Rawameneng, Kabupaten Subang Dahri Iskandar; Ade Guntur
Maspari Journal : Marine Science Research Vol 6, No 2 (2014): Edisi Juli
Publisher : UNIVERSITAS SRIWIJAYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1959.123 KB) | DOI: 10.36706/maspari.v6i2.1816

Abstract

Alat tangkap garuk merupakan alat tangkap yang dominan di Desa RawamenengBlanakan. Alat ini memiliki produktifitas yang baik untuk menangkapkerang.Produktifitas alat tangkap garuk tersebut berhubungan dengan kemampuan alattangkap untuk memberikan hasil tangkapan yang baik dan keuntungan bagi nelayan.Penelitian ini bertujuan untuk menentukan efisiensi teknis dan ekonomis alat tangkapgaruk dan menentukan peluang pengembangannya di Desa Rawameneng. Untukmenentukan produktifitas alat garuk, data yang diperoleh dianalisis secara teknis danekonomis. Hasil penelitian menunjukan bahwa efisiensi teknis alat tangkap garuk diDesa Rawameneng berkisar antara 0,22-6,41. Ditinjau dari sisi ekonomi alat tangkapgaruk mampu memberikan pendapatan dengan kisaran Rp39.790.000-Rp108.468.000dengan rata-rata Return of Investment 299 %, Revenue-Cost Ratio 4,36 dan waktupengembalian modal (Payback period) 0,33.
COMPARATIVE SELECTIVITY AND CATCHABILTY OF POT AND TUBE FOR CONGER EEL (Conger Myriaster) Dahri Iskandar
JOURNAL OF COASTAL DEVELOPMENT Vol 14, No 3 (2011): Volume 14, Number 3, Year 2011
Publisher : JOURNAL OF COASTAL DEVELOPMENT

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Abstract

The objective of this experiment was  to develop a method to estimate mesh selectivity of pot and comparative catchability between pot and tube for white spotted conger eel (Conger Myriaster). About ten times comparative fishing experiments were carried out off Haneda in Tokyo Bay, during October and November every year from 1997 to 2000. The experiment used collapsible pots of 5 mesh openings (21.0, 18.1, 15.5, 13.6 and 11.6 mm) and tube of 9.06 mm hole diameter as control gear. Result of this experiment indicated that pot of larger mesh size caught larger conger. Significant different was found in length distributions between the four years (ANOVA Test, P=1.9x10-45) and then the data were not combined for the analysis. In term of girth-perimeter ratio, R value of 50% retention and selection range were calculated to be 1.19 and 0.24 from estimated logistic parameters, (α,β)=(-10.67, 8.99). When catchability of tube was assumed to be 1, relative catchability of pot with 21.0, 18.1, 15.5, 13.6 and 11.6 mm mesh openings were 0.62, 0.79, 0.73, 0.63 and 0.51, respectively. This suggested that one tube could catch more conger eel than one pot and pot of larger mesh size was likely to catch of larger size more effectively.
EFFECT OF ESCAPE VENT ON CATCHABILITY AND SELECTIVITY OF POT FOR BLACK DAMSEL (Neoglyphidodon melas) Dahri Iskandar
JOURNAL OF COASTAL DEVELOPMENT Vol 14, No 2 (2011): Volume 14, Number. 2, Year 2011
Publisher : JOURNAL OF COASTAL DEVELOPMENT

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Abstract

The objective of this study was to investigate the effect of escape vent on catch of black damsel, then sizeselectivity of escape vent will be estimated to predict the retention probability of escape vent on black damsel.The result of this study indicated that comparison of diversity index between the catches of escape vent potsand non escape vent pots were 3.07 and 3.38 respectively. Installing escape vent pots significantly impovecatch of commercial size black damsel i.e 56.6% of total catch. A Kolmogorov-Smirnov two sample testindicated that there is significant difference on the length distribution of black damsel between escape ventpots and unvented pots. The result of size selectivity curve indicated that fish size smaller than 8 cm lengthhave high probability to escape from escape vent pots. Length at 50 % retention occurs at fish length of 14.67 mm.
Mekanisme Penindakan Terhadap Oknum Anggota Polisi yang Melakukan Pelanggaran Kode Etik Oleh Bidang Profesi Dan Pengamanan (PROPAM) Dahri Iskandar
Albayan Journal of Islam and Muslim Societies Vol. 1 No. 02 (2024)
Publisher : Albayan Journal of Islam and Muslim Societies

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Abstract

The attitudes and behavior of members of the Indonesian National Police are governed by the Police Professional Code of Ethics as stipulated in Police Regulation Number 7 of 2022. This study examines the legal framework and enforcement mechanisms implemented by Propam against police officers who violate the code of ethics, as well as the challenges and efforts encountered in the process. The research is descriptive-analytical with an empirical juridical approach. Data were collected through literature review and field research at the North Sumatra Regional Police, consisting of both primary and secondary sources. The findings reveal that enforcement against ethical violations includes not only ethical sanctions but also criminal penalties under the Indonesian Criminal Code and administrative sanctions as regulated in Police Regulation No. 7 of 2022. The enforcement process begins with public reports, internal investigations, and hearings before the Police Code of Ethics Commission, which consists of three to five members, including the adjudicator (Ankum), prosecutor, and advisor, all from within the police institution. Challenges include the absence of alleged violators, lengthy trial proceedings, and limitations in internal supervision. This study emphasizes the importance of consistent enforcement by Propam to uphold professionalism and the integrity of the police institution.
Co-Authors Ade Guntur Rahmad Caesario