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All Journal Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Bawal : Widya Riset Perikanan Tangkap Jurnal Segara Frontiers Zona Laut : Jurnal Inovasi Sains dan Teknologi Kelautan Jurnal Bluefin Fisheries JURNAL ILMU DAN TEKNOLOGI PERIKANAN TANGKAP
Manohas, Jul
Politeknik Kelautan Dan Perikanan Bitung
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Biological Review of Squid (Stenoteuthis oualaniensis) in North Sulawesi (Case Study of Squid Caught in Motto Waters, North Lembeh, Bitung City) Arifin, Muhammad Zainul; Saranga, Rudi; Hamel, Samuel; Manohas, Jul; Putri, Elsari T.; Antou , Lusje
Zona Laut : Jurnal Inovasi Sains Dan Teknologi Kelautan Volume 6, Number 3, November 2025 Edition
Publisher : Departemen Teknik Kelautan Universitas Hasanuddin

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Abstract

Fishing with the target of squid by fishermen in the Motto Village is a hereditary cultural fishing and has been going on for a long time. The research on squid’s biology of Motto village is important to support this fishing activities The purpose of this study was to identify squid caught based on biology in the waters of the Motto Village. The method used in this research is descriptive research method. The research was conducted during September to November 2021. Data was collected through observation and interviews. The results obtained indicated that the squids caught in Motto waters were a Stenoteuthis oualaniensis. Maximum mantle length 23 cmML, minimum mantle length 9.6 cmML with an average of 11.80 cm ML. Maximum weight of 500 grams, minimum weight of 10 grams with an average of 70 grams. The results of the length-weight ratio obtained the value of R2 was 0.7929 where the determination or effect of the length variation of the mantle on the weight variation of the squid was 79.29%. The growth pattern of squid are negative allometric or length increase more dominant than weight increase.
KARAKTERISTIK GENETIK DAN FILOGENETIK SPESIES IKAN LAYANG (Decapterus sp) YANG TERTANGKAP DI PERAIRAN BITUNG Saranga, Rudi; Santoso, Heru; Manohas, Jul; Kasim, Nurdin; ismail, Ismail; Sarianto, Deni; Lie, Gretyo Eduard Dara; Gomair, Givensius
BAWAL Widya Riset Perikanan Tangkap Vol 17, No 1 (2025): April 2025
Publisher : Politeknik Kelautan dan Perikanan Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/bawal.17.1.2025.46 - 55

Abstract

Sumberdaya kelompok ikan Layang di perairan Bitung memiliki nilai ekonomis sehingga perlu dilakukan pengelolaan berdasarkan nama spesies ikan yang valid. Salah satu ciri khusus perikanan tangkap di Indonesia adalah multispesies dan multigear dan dalam pencatatan ikan hasil tangkapan hanya menggunakan nama kelompok ikan, sehingga untuk satu nama kelompok ikan dapat terdiri dari beberapa spesies ikan. Penelitian ini bertujuan melakukan identifikasi spesies ikan layang yang tertangkap di perairan Bitung secara genetik untuk mendapatkan spesies yang valid. Untuk mendapatkan karakteristik genetik dan filogenetik dari 4 sampel ikan layang dilakukan ekstraksi DNA, Polymerase Chain Reaction (PCR), penyuntingan DNA dan analisis filogenetik dan evolusi molekuler menggunakan program MEGA versi X. Hasil penelitian mendapatkan bahwa secara genetik ikan layang anggur Bitung merupakan spesies Decapterus smithvanizi dan ikan layang biru dengan ukuran kecil, sedang dan besar merupakan spesies Decapterus macarellus. Filogenetik D. smithvanizi Bitung memiliki jarak kekerabatan yang dekat dengan jenis yang sama dari perairan Philipina, sedangkan D. macarellus Bitung memiliki kekerabatan yang dekat dengan jenis yang sama dari perairan Vietnam. Perlu dilakukan kajian aspek biologi D. smithvanizi untuk melengkapi informasi yang belum tersedia saat ini.
IDENTIFICATION OF WASTE FROM FISHING VESSEL BASED AT THE BITUNG OCEAN FISHING PORT Putri, Elsari Tanjung; Manohas, Jul; Simau, Silvester; Manengkey, Jenny I.; Saranga, Rudi; Darondo, Franky A.; Katili, Lidya; Karyanto, Karyanto
Jurnal Segara Vol 19, No 3 (2024): December
Publisher : Politeknik Kelautan dan Perikanan Dumai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/segara.v19i3.15119

Abstract

One source of marine pollution can be caused by the operational activities of fishing vessels. This research aims to identify the type and amount of waste originating from fishing vessels. Data collection was conducted at Bitung Ocean Fishing Port during November-December 2023 by purposive sampling. The waste that has been collected, sorted and weighed. Data were analysed using descriptive quantitative. The waste generated by fishing vessels consists of two types, namely organic and inorganic waste. Organic waste consists of food waste and kitchen waste, while inorganic waste consists of 70% plastic, 12% processed wood, 10% glass, 6% clothing or cloth, and 1% metal and rubber. Organic waste is disposed of directly into the sea, while inorganic waste is collected in storage containers for later disposal on land. There is a need for more action in fishery vessel waste management, such as training in recycling that can generate economic benefits, in an effort to reduce waste from fishing vessels.
Co-Authors Antou , Lusje Antou, Lusje D. Arifi, Muhammad Zainul Asia, Asia da Gomez, Grandhi K Darondo, Franky A. Elsari Tanjung Putri Gomair, Givensius Hamel, Samuel Heru Santoso Heru Santoso Hetty Magrittha Pauline Ondang Ismail Ismail Jerry D. Kalesaran Johnny H. Tumiwa Johnny H. Tumiwa Johnny Tumiwa Karyanto Karyanto, Karyanto Kasim, Nurdin Katili, Lidya Lie, Gretyo Eduard Dara Manengkey, Jenny I Mohammad Akbar, Mohammad Mohammad Zaini Mohammad Zaini Muhammad Zainul Arifin Muhammad zainul arifin Muhammad Zainul Arifin Pontoh, Peggy Prakoso, Imam Putri, Elsari T. Rewah S Manuel Rudi Saranga Rudi Saranga Saranga, Rudi Sarianto, Deni Simau, Silvester Tauladani, Saeful A. Tumanduk, Nova Yuli Purwanto Yuli Purwanto Yuli Purwanto, Yuli