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Juvenil: Jurnal Ilmiah Kelautan dan Perikanan
Published by Universitas Trunojoyo Madura
ISSN : -     EISSN : 27237583     DOI : -
Core Subject : Science, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Environmental Science
Juvenil: Journal of Marine and Fisheries Sciences, is a scientific journal in the field of marine and fisheries science published electronically and periodically four times a year by the Department of Marine Affairs and Fisheries, Trunojoyo University, Madura. This journal aim to become a medium of dissemination of high quality research and scientific note in the fiend of marine and fisheries. This journal can be accessed and downloaded freely for everyone. The article published in this journal have been pass the rigorious peer review by the expert reviewer. This journal accept every article that contain the following, but not limited to, scope: Juvenil: Journal of Marine and Fisheries Sciences, is a scientific journal in the field of marine and fisheries science published electronically and periodically four times a year by the Department of Marine Affairs and Fisheries, Trunojoyo University, Madura. This journal is expected to function as a medium for the dissemination of quality scientific research results as well as scientific rebuttal (notes) in the marine and fisheries sector which can be accessed online and free of charge by the Indonesian community and the international community. The articles (articles) published in this journal are articles that have passed peer-review (partner bebestari). This journal accepts every article which contains, but is not limited to, the scope: 1. Ecology and biology of marine and fisheries 2. Marine and Aquaculture 3. Marine and Aquatic Conservation 4. Marine Water Pollution 5. Management of marine and aquatic resources 6. Marine and fishery processing technology
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Perairan
Articles 8 Documents
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Search results for , issue "Vol 5, No 4: November 2024" : 8 Documents clear
Identifikasi Rumput Laut Di Perairan Pulau Maratua, Kalimantan Timur Nurfadilah Nurfadilah; Rani Novia
Juvenil Vol 5, No 4: November 2024
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v5i4.25254

Abstract

ABSTRAKRumput laut merupakan salah satu tumbuhan laut yang banyak memiliki manfaat dan berdampak baik bagi lingkungan perairan, tidak hanya sebagai bioindikator perairan, akan tetapi juga dapat bernilai bagi bioaktif. Kegiatan budidaya rumput laut sangat memiliki potensi untuk pengembangan usaha lokal nelayan sehingga dapat meningkatkan ekonomi masyarakat pesisir. Meskipun budidaya rumput laut sudah dilakukan namun proses budidaya hanya dapat dilakukan untuk beberapa jenis saja, sehingga perlu adanya informasi mengenai sebaran rumput laut yang tumbuh secara alami. Penelitian ini bertujuan untuk mengidentifikasi rumput laut yang ada di Pulau Maratua di empat kampung yaitu stasiun I (Teluk harapan), Stasiun II (Kampung Payung-payung), Stasiun III (Kampung Bohe Silian), Stasiun IV (Kampung Teluk Alulu) dan stasiun V (Pulau Kakaban). Metode yang digunakan metode survey dengan pengambilan sampel secara langsung dari lapangan kemudian diidentifikasi secara deskriptif. Hasil penelitian ini didapatkan 7 Ordo, 9 Famili, 10 Genus dan 11 species. Sebaran rumput laut jenis terbanyak ditemukan di stasiun I (Kampung Teluk Harapan) sebesar 40% dan 20% di stasiun V di Danau Kakaban. Jenis rumput laut yang banyak ditemukan di Pulau Maratua yaitu genus Padina, Hypnea, dan Halimeda.Kata Kunci: Rumput Laut, Pulau Maratua, IdentifikasiABSTRACTSeaweed is one of the marine plants that has many benefits and good impacts on the aquatic environment, not only as an aquatic bioindicator, but can also be valuable for bioactivity. Seaweed cultivation activities have the potential to develop local fishermen's businesses so that they can improve the economy of coastal communities. Even though seaweed cultivation has been carried out, the cultivation process can only be done for some species, so there needs to be information about the distribution of seaweed that grows naturally. This research aims to identify seaweed on Maratua Island in four villages, namely station I (Teluk Harapan), Station II (Payung-payung Village), Station III (Bohe Silian Village), Station IV (Alulu Teluk Village) and station V (Kakaban Island). The method used is a survey method by taking samples directly from the field and then identifying them descriptively. The results of this research obtained 7 orders, 9 families, 10 genera and 11 species. The largest distribution of seaweed species was found at station I (Kampung Teluk Harapan) at 40% and 20% at station V in Lake Kakaban. The types of seaweed that are often found on Maratua Island are the genera Padina, Hypnea, and Halimeda. Keywords: Seaweed, Maratua Island, Identification
Analisis Residu Antibiotik Furazolidone Pada Ikan dan Udang Di UPT Laboratorium Kesehatan Ikan dan Lingkungan Pasuruan, Jawa Timur Aminatun Najah; Indah Wahyuni Abida; Dyah Wahjuning Listiyarini
Juvenil Vol 5, No 4: November 2024
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v5i4.17503

Abstract

ABSTRAKFurazolidone merupakan salah satu jenis antibiotik yang sering digunakan oleh peternak untuk ditambahkan ke pakan ternaknya, hal ini karena furazolidone merupakan bagian dari nitrofuran. Furazolidone memiliki struktur kimia 3-amino-2-oxazolidinone (AOZ). Produk budidaya ikan dan udang yang mengandung residu Furazolidone (AOZ) bila dikonsumsi akan menimbulkan reaksi hipersensitif dan anemia hemolitik pada orang-orang tertentu. Tujuan dari penelitian ini adalah untuk menganalisis residu antibiotik Furazolidone pada ikan dan udang di Unit Pelaksanaan Teknis Laboratorium Kesehatan Ikan dan Lingkungan Pasuruan Jawa Timur. Metode analisis jenis antibiotik menggunakan metode ELISA (Enzym Link Immunosorbent Assay) terhadap 12 sampel lapang. Hasilnya menunjukkan bahwa dengan jumlah sampel daging ikan bandeng (Chanos chanos) sebanyak 10 sampel memiliki nilai tertinggi 0.149 μg/kg, dan nilai terendah daging ikan bandeng berada pada nilai dibawah STC (Screening Target Concentration) yang diasumsikan menjadi ND (Not detect), sedangkan pada 2 sampel udang vanname  memiliki nilai yang sama yaitu nilai dibawah STC yang diasumsikan menjadi ND (Not detect) pada uji skrening. Meskipun hasil pengukuran dibawah STC, namun perlu ditingkatkan pengawasan dalam penggunaannya pada hewan ternak di Indonesia untuk mengurangi dampak pada kesehatan manusia.Kata kunci: Deteksi ELISA, Daging Ikan, Daging Udang, Residu Furazolidone.ABSTRACTFurazolidone is one type of antibiotic commonly used by farmers to add to their livestock feed because it is part of the nitrofuran group. Furazolidone has a chemical structure known as 3-amino-2-oxazolidinone (AOZ). The cultivation products of fish and shrimp containing residues of Furazolidone (AOZ), when consumed, can induce hypersensitive reactions and hemolytic anemia in certain individuals. The objective of this study is to analyze the residue of the antibiotic Furazolidone in fish and shrimp at the Technical Implementation Unit of Fish Health and Environmental Laboratories in Pasuruan, East Java. The antibiotic analysis method used the ELISA (Enzyme-Linked Immunosorbent Assay) method on 12 field samples. The results indicate that, among the field samples, 10 samples of milkfish (Chanos chanos) had the highest value of 0.149 μg/kg, while the lowest value for milkfish was below the Screening Target Concentration (STC), assumed to be Not Detectable (ND). Similarly, for 2 samples of vannamei shrimp, the values were also below the STC and assumed to be ND in the screening test. Although the measured values are below the STC, increased supervision in the use of Furazolidone in livestock in Indonesia is necessary to minimize the impact on human health.Top of FormKeywords: ELISA detect, Milkfish meat, Prawn meat, Furazolidone residu
Biodiversitas Gastropoda Berdasarkan Tipe Sedimen Pada Kawasan Ekosistem Mangrove Kecamatan Socah, Kabupaten Bangkalan Farah Gustia Jana; Fitria Hersiana Afifa; Haryo Triajie; Indah Wahyuni Abida; Febi Ayu Pramithasari
Juvenil Vol 5, No 4: November 2024
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v5i4.26537

Abstract

ABSTRACTLokasi penelitian merupakan daerah muara dan termasuk wilayah ekosistem mangrove yang terdapat pertambakan, dengan luas kawasan ekosistem mangrove Kecamatan Socah mencapai 92.00 ha. Gastropoda sebagai kelompok organisme fakultatif yang dapat bertahan pada kisaran perubahan lingkungan yang tidak terlalu lebar, sehingga perubahan lingkungan perairan dan tipe sedimen tentu sangat berpengaruh terhadap keragaman dan komposisi populasi. Metode penelitian ini menggunakan metode deskriptif kuantitatif dengan pengambilan data primer dan sekunder. Stasiun pertama dan kedua ditemukan mangrove berjenis Rhizophora mucronata dan Avicennia alba, sedangkan pada stasiun ketiga ditemukan mangrove dengan jenis Rhizophora mucronata, Avicennia alba dan Avicennia marina. Didapatkan 9 famili gastropoda dengan nilai kelimpahan tertinggi selama penelitian diperoleh pada stasiun 2 yaitu spesies Cerithidea cingulata sebesar 42 ind/m2 dan secara keseluruhan spesies ini kelimpahannya paling banyak dari spesies lainnya yaitu sebanyak 110.3 ind/m2. Hasil analisis tipe sedimen dengan menggunakan metode kering pada semua stasiun menunjukkan bahwa tipe sedimen tergolong sand (pasir). Tipe sedimen mud dan parameter kualitas air sangat berpengaruh bagi kelimpahan gastropoda karena saling berkorelasi. Jenis substrat adalah faktor utama yang mengontrol distribusi makrozoobhentos dan penyebaran gastropoda erat sekali hubungannya dengan kondisi perairan dimana organisme ini ditemukan.Kata kunci: Biodiversitas, Gastropoda, Mangrove, Sedimen,SocahKata kunci: Biodiversitas, Gastropoda, Mangrove, Sedimen,SocahABSTRACTThe research location is an estuary area and includes a mangrove ecosystem area with aquaculture, with the area of the Socah District mangrove ecosystem reaching 92.00 ha. Gastropods as a group of facultative organisms that can survive in a range of environmental changes that are not too wide, so that changes in the aquatic environment and sediment types certainly greatly affect the diversity and composition of the population. This research method uses a quantitative descriptive method with primary and secondary data collection. The first and second stations found mangroves of the Rhizophora mucronata and Avicennia alba types, while at the third station found mangroves of the Rhizophora mucronata, Avicennia alba and Avicennia marina types. 9 gastropod families were obtained with the highest abundance values during the study obtained at station 2, namely the Cerithidea cingulata species of 42 ind/m2 and overall this species has the highest abundance of other species, namely 110.3 ind/m2. The results of the sediment type analysis using the dry method at all stations showed that the sediment type was classified as sand. The types of mud sediment and water quality parameters greatly influence the abundance of gastropods because they are correlated. Substrate type is the main factor that controls the distribution of macrozoobhenthos and the distribution of gastropods is closely related to the water conditions where these organisms are found.Key words: Biodiversity, Mangrove, Gastropods, Sediment, Socah
Analisis Faktor Biokonsentrasi Dan Faktor Translokasi Dari Logam Berat Cu Pada Mangrove Rhizopora sp. Salju Qolbi Ilhami; Jihannuma Adibiah Nurdini
Juvenil Vol 5, No 4: November 2024
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v5i4.28067

Abstract

ABSTRAKSalah satu polutan logam berat di lingkungan adalah tembaga (Cu) yang bersumber dari aktivitas manusia seperti industri dan pertambangan yang tidak dikelola dengan baik, menimbulkan limbah yang mengandung logam berat yang kemudian terakumulasi dan dibawa oleh aliran air menuju laut. Penelitian ini menganalisis kandungan logam berat, faktor biokonsentrasi serta faktor tranlokasi pada akar, sedimen, dan daun mangrove. Stasiun pengambilan sampel mencakup 5 stasiun yaitu: Sepulu, Poltera, Modung, Tajungan, dan Bancaran. Metode yang digunakan untuk menganalisis logam berat Cu adalah metode detruksi asam nitrat peklorat dan spektrofotometri serapan atom dengan panjang gelombang 324,7 nm. Hasil yang ditemukan dengan cemaran logam berat Cu tertinggi pada akar, daun, dan sedimen terdapat di stasiun 4 dengan masing-masing nilai besaran 0.5880; 0.4965; 4.8510. Sedangkan dengan nilai kandungan logam berat Cu terendah pada akar, daun, dan sedimen terdapat di stasiun 3 dengan masing-masing nilai besaran 0.2130; 0.0952; 0.5221. Faktor biokonsentrasi tertinggi adalah akar rata-rata sebesar 0.429, kemudian daun dengan rata-rata 0.220. Faktor translokasi untuk mengetahui perpindahan akumulasi logam dari akar ke daun, nilai factor translokasi tertinggi tertinggi berada di stasiun 4 sebesar 0.844. Hal ini membuktikan bahwa mangrove dapat mengakumulasi logam berat dalam jaringan tubuhnya untuk mengurangi pencemaran logam berat.Kata Kunci: Logam berat Cu, Mangrove, Rhizopora Mucronata, Faktor Bikonsentrasi, Faktor TranslokasiABSTRACTOne of the heavy metal pollutants in the environment is copper (Cu) which comes from human activities such as industry and mining that are not managed properly, causing waste containing heavy metals which then accumulate and are carried by water flow to the sea. This study analyzed the content of heavy metals, bioconcentration factors and translocation factors in roots, sediments, and mangrove leaves. Sampling stations include 5 stations, namely: Sepulu, Poltera, Modung, Tajungan, and Bancaran. The method used to analyze the heavy metal Cu is the nitric acid pechlorate destruction method and atomic absorption spectrophotometry with a wavelength of 324.7 nm. The results found with the highest Cu heavy metal contamination in roots, leaves, and sediments were at station 4 with respective values of 0.5880; 0.4965; 4.8510. While the lowest Cu heavy metal content in roots, leaves, and sediments was at station 3 with respective values of 0.2130; 0.0952; 0.5221. The bioconcentration factor is the ability of organisms to accumulate heavy metals in sediment, the highest bioconcentration factor value is the average root of 0.429, then the leaves with an average of 0.220. The translocation factor is to determine the transfer of metal accumulation from roots to leaves, the highest translocation factor value is at station 4 of 0.844. This proves that mangroves can accumulate heavy metals in their body tissues to reduce heavy metal pollution.Keywords: Heavy metal Cu, Mangrove, Rhizophora Mucronata, Bioconcentration Factor, Translocation Factor
Pengaruh Penambahan Isolate Soy Protein (ISP) terhadap Sifat Fisikokimia dan Hedonik Bakso Ikan Lele (Clarias sp.) Pramuji Rahman; Ita Zuraida; Seftylia Diachanty; Bagus Fajar Pamungkas; Ilmiani Rusdin
Juvenil Vol 5, No 4: November 2024
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v5i4.27293

Abstract

ABSTRAK Ikan lele merupakan ikan berdaging putih yang dapat diolah menjadi berbagai macam produk berbasis fish jelly. Bakso ikan adalah produk diversifikasi hasil perikanan yang dapat dikembangkan dan berpeluang menambah nilai tambah jual (added value), salah satunya dengan penambahan Isolate Soy Protein (ISP). Tujuan dilakukan penelitian ini untuk mengetahui karakteristik fisikokimia bakso ikan lele (Clarias sp.) dengan penambahan ISP. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) dengan perlakuan rasio daging lumat dan persentase ISP S0 (85% daging lumat: 0% ISP); S1(82% daging lumat: 3% ISP); S2 (80% daging lumat: 5% ISP); S3 (78% daging lumat: 7% ISP), dan S4 (74% daging lumat: 9% ISP), dengan pengulangan sebanyak 3 kali. Parameter uji terdiri dari kadar air, abu, lemak, protein, karbohidrat, uji Expresible Moisture Content (EMC) dan hedonik (aroma, tekstur, rasa, dan warna).  Hasil penelitian menunjukan bakso ikan lele yang ditambahkan ISP memiliki karakteristik fisikokimia meliputi kadar air (56,72%-62,89%), abu (2,08%-2,55%), lemak (0,53%-0,88%), protein (12,27%-15,39%), karbohidrat (21,87%-24,81%), EMC (2,85%-5,02%). Hasil uji hedonik dengan parameter aroma 5,40-5,60 (suka), tekstur 5,10-5,53 (suka), rasa 4,93-5,70 (suka), warna 5,17-5,53 (suka). Uji hedonik terbaik dari segi aroma (5: suka), tekstur (5: suka), rasa (5: suka), dan warna (5: suka) terdapat pada perlakuan S2 (ISP 5%).Kata kunci: Bakso, Clarias sp., EMC, Hedonik, Isolate Soy Protein. ABSTRACTCatfish is a white-fleshed fish that can be processed into various fish jelly-based products. Fish meatballs are a diversified fishery product that can be developed and has the potential to increase added value, one of which is by adding Isolate Soy Protein (ISP). The purpose of this research was to determine the physicochemical characteristics of catfish meatballs (Clarias sp.) with the addition of ISP. The experimental used a Complete Randomized Design (CRD) with the ratio of minced meat and ISP percentage treatments S0 (85% minced meat: 0% ISP); S1 (82% minced meat: 3% ISP); S2 (80% minced meat: 5% ISP); S3 (78% minced meat: 7% ISP), and S4 (74% minced meat: 9% ISP) with 3 repetitions. The parameters consisted of water content, ash, fat, protein, carbohydrate, Expresible Moisture Content (EMC) and hedonic tests (aroma, texture, taste, and color). The results showed that catfish meatballs added with ISP had physichochemical characteristics including moisture content (56.72%-62.89%), ash (2,08%-2,55%), fat (0,53%-0,88%), protein (12,27%-15,39%), carbohydrate (21,87%-24,81%), EMC (2.85%-5.02%). The results of the hedonic test with aroma parameters 5.40-5.60 (like), texture 5.10-5.53 (like), taste 4.93-5.10 (like), color 5.17-5.53 (like). The best hedonic test of aroma (5: like), texture (5: like), taste (5: like), and color (5: like) was found in S2 (ISP 5%).Keywords: Clarias sp, EMC, Hedonic, Isolate Soy Protein, Meatballs
Jenis dan Ukuran Ikan Famili Scombridae yang Tertangkap Jaring Insang Hanyut (Drift gillnet) dengan Ukuran Mata Jaring 10 cm dan Shortening 56% di Perairan Ambunten, Kabupaten Sumenep Wiqoyah Elma Wahyuni; Muhammad Zainuri
Juvenil Vol 5, No 4: November 2024
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v5i4.27538

Abstract

 ABSTRAKScombridae adalah kelompok famili ikan yang memiliki nilai ekonomis tinggi dan banyak dimanfaatkan potensinya oleh masyarakat di Ambunten. Nelayan menggunakan alat tangkap jaring insang hanyut (drift gillnet) dengan ukuran mata jaring (mesh size)  10 cm dan nilai shortening 56% sehingga membentuk bukaan mata jaring yang disesuaikan dengan bentuk tubuh ikan target. Tujuan dari penelitian adalah mengetahui ukuran tubuh dari jenis-jenis ikan yang tertangkap serta komposisinya.  Pengambilan data dilakukan dengan mengikuti nelayan mengoperasikan alat tangkap, mengidentifikasi jenis ikan, mengukur parameter morfologi dan menghitung jumlah ikan yang tertangkap. Data dianalisa scara deskriptif kuantitatif.  Hasil penelitian menunjukkan bahwa jenis ikan dari kelompok Scombridae terdiri dari cakalang (Katsuwonus pelamis), tuna (Thunnus obesus), tenggiri (Scomberomorus commersonii), dan tongkol (Euthynnus affinis).   Ukuran panjang tubuh rata-rata berkisar      40,25 cm – 41,72 cm; berat tubuh rata-rata berkisar 1,33 kg – 1,63 kg; tinggi tubuh rata-rata berkisar 9,20 cm – 9,33 cm; lebar tubuh rata-rata berkisar 5,86 cm – 6,29 cm. Komposisi hasil tangkapan berdasarkan jumlah individu (%)  adalah, ikan tongkol 798 ekor (32,31%), cakalang 660 ekor (26,72%), tenggiri 620 ekor  (25,10%), dan tuna 392 ekor (15,87%).  Kata Kunci : Jaring Insang Hanyut; Scombridae; ukuran mata jaring; pengerutan jaringABSTRACT Scombridae is a group of fish families that have high economic value and their potential is widely exploited by the people of Ambunten. Fishermen use drift gillnet fishing gear with a mesh size of 10 cm and a shortening value of 56% to form mesh openings that are adapted to the body shape of the target fish. The aim of the research is to determine the body size of the types of fish caught and their composition.  Data collection was carried out by following fishermen operating fishing gear, identifying fish types, measuring morphological parameters and counting the number of fish caught. Data were analyzed quantitatively descriptively.  The results of the research show that the types of fish from the Scombridae group consist of skipjack (Katsuwonus pelamis), tuna (Thunnus obesus), mackerel (Scomberomorus commersonii), and little tuna (Euthynnus affinis).   Average body length ranges from 40.25 cm – 41.72 cm; average body weight ranges from 1.33 kg – 1.63 kg; average body height ranges from 9.20 cm – 9.33 cm; average body width ranges from 5.86 cm – 6.29 cm. The composition of the catch based on the number of individuals (%) was, 798 tuna (32.31%), 660 skipjack tuna (26.72%), 620 mackerel (25.10%), and 392 little tuna (15.87%). %). Keywords : Drift Gill Net; Scombridae; Mesh Size; Shortening
Pengaruh Pakan Yang Berbeda Dalam Upaya Domestifikasi Terhadap Pertumbuhan Dan Kelangsungan Hidup Ikan Maru (Channa marulioides) Ukuran 10-12 Cm Muhammad Ahsan Maulana; Andri Nofreeana; Tholibah Mujtahidah; Rizal Akbar Hutagalung
Juvenil Vol 5, No 4: November 2024
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v5i4.22479

Abstract

ABSTRAK Ikan hias predator Channa marulioides memiliki nilai daya tarik dikalangan pecinta ikan hias. Banyaknya peminat menjadikan ikan ini terancam terjadi penurunan stok di alam. Upaya domestikasi menjadi solusi dalam mengatasi permasalahan tersebut. Pemilihan dan pemberian pakan yang tepat merupakan hal penting dalam menunjang keberhasilan domestikasi ikan. Penelitian ini menggunakan jenis pakan yang berbeda dengan tujuan mendapakan hasil terbaik pada pertumbuhan dan kelulushidupan ikan maru (Channa marulioides) dalam upaya domestikasi. Metode penelitian RAL (Rancangan Acak Lengkap) dengan 4 perlakuan 3 kali ulangan. Perlakuan yang diterapkan adalah pemberian pakan dengan perlakuan P1 (ikan peto), P2 (Pelet buatan KAE), P3 (Cacing sutera), dan P4 (Udang rebon kering). Perlakuan terbaik yaitu didapatkan pada P2 (Pelet buatan KAE) dengan nilai pertumbuhan panjang 3,18 cm, berat mutlak 15,07 gram, laju pertumbuhan spesifik 3,26%, kelangsungan hidup 100%, FCR 3,88, pertumbuhan ikan bersifat allometrik negatif. Serta kualitas air yang cukup mendukung dalam menunjang pertumbuhan dan kelangsungan hidup dalam upaya domestikasi ikan maru (Channa marulioides) antara lain suhu berkisar 31-32,3℃, pH berkisar 7,6-8,4, DO berkisar 6,08-6,33 mg/L, dan kadar amoniak berkisar 0,25-0,50 mg/L. Kata kunci: Ikan maru (Channa marulioides), Domestikasi, Pertumbuhan, Kelangsungan Hidup ABSTRACTThe predatory ornamental fish Channa marulioides has an attractiveness value among ornamental fish lovers. The large number of enthusiasts makes this fish threatened with a decline in stocks in nature. Domestication efforts are a solution to overcome these problems. Selecting and providing the right feed is important in supporting the success of fish domestication. This research used different types of feed with the aim of getting the best results on the growth and survival of maru fish (Channa marulioides). Research method RAL (Completely Randomized Design) with 4 treatments 3 replications. The treatments applied was feeding with treatment P1 (peto fish), P2 (KAE pellets), P3 (silk worms), and P4 (dried rebon shrimp). The best treatment was P2 (KAE pellets) with a growth value of 5.51 cm in length, absolut weight of 21.52 grams, specific weight of 3.26%, survival rate of 100%, FCR of 37.73, fish growth negative allometric. As well as water quality that is sufficient to support the growth and survival rate of maru fish (Channa marulioides) domestication, including temperatures from 31-32,3℃, pH from 7,6-8.4, DO from 6,08-6.33 mg/day L, and ammonia levels ranged from0.25-0.50 mg/L. Keyword : Channa marulioides, Domestication, Growth, Survival Rate
Prevalence and intensity of Octolasmis infestation in mud crabs (Scylla spp.) in Wael coastal waters, Maluku, Indonesia Shelly Mieke Pattipeiluhu; Endang Jamal; Bethsy Jane Pattiasina
Juvenil Vol 5, No 4: November 2024
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v5i4.27309

Abstract

ABSTRACTOctolasmis is one of the most common barnacle species found on crabs. The prevalence and intensity of Octolasmis infestation on crabs can indicate the health of crab populations, both in nature and aquaculture systems. This study aimed to determine the prevalence and intensity of Octolasmis spp. infestation on mud crabs Scylla spp. in Wael coastal waters, Maluku, Indonesia. Seventeen mud crab samples of seven males and ten females were collected from Wael coastal waters in January-February 2024. Each crab was measured for carapace length and body weight, and the number of infested crabs and Octolasmis spp. were counted in each infested crab. Prevalence of Octolasmis spp. in mud crabs Scylla spp. reached 64.71% with intensity of 28.09 ind/crab. Female crabs had a higher prevalence, 55%, and intensity of 10,59±1,21 ind/crab than males, 45% and 7,59±0,82 ind/crab, respectively, but statistically not significantly different (P = 0.3110.05). Correlation tests showed that body weight and carapace length of mud crabs were negatively correlated with Octolasmis spp. infestation, and the relationship was weak, R = - 0.084 and - 0.133, respectively. These findings provide preliminary information on the level of Octolasmis spp. infestation in mud crabs Scylla spp. in Wael coastal waters. Comprehensive research is required using proportional sample size, including the effect of season and water quality on Octolasmis spp. infestation levels.Keywords: parasites, density, host size, crabs, barnacle

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