Genes involved in sex determination and differentiation have been identified mice, humans, chickens, reptiles, amphibians teleost fishes. However, little is known of their functional conservation, it unclear whether there a common set genes shared by all vertebrates. Coelacanths, basal Sarcopterygians unique “living fossils”, could help establish an inventory the ancestral these important developmental processes provide insights into components. In this study 33 from genome Latimeria...

We used the Nansen Bottle Sampler to collect water samples in deepsea area, ranging from 150 meters 175 six points around Manado Bay, test quality of e-DNA detect target species fishing area. Therefore, basis case study method with a sampling technique was carried out on July 29 2023 using Power Water Sterivex Kits, were then stored at -250C and taken TBRC, University Ryukyus for further laboratory works, such as; eDNA extract, testing, 1st 2nd PCR Electrophoresis analysis processes MiFish-U...

Latimeria menadoensis is a coelacanth species first identified in 1997 Indonesia, at 10,000 Km of distance from its African congener. To date, only six specimens have been caught and just very limited molecular data available. In the present work we describe de novo transcriptome assembly obtained liver testis samples collected fifth specimen ever this species.The deep RNA sequencing performed with Illumina technologies generated 145,435,156 paired-end reads, accounting for ~14 GB sequence...

Sponges are key components of the benthic assemblages and play an important functional role in many ecosystems, especially coral reefs. The Indonesian reefs, located within so-called "coral triangle", among richest world. However, knowledge diversity sponges several other marine taxa is far from being complete area. In spite this great biodiversity, most information on scattered old fragmented literature comprehensive data about their still lacking. paper, we report presence 94 species...

Yellowfin tuna is one of the most in-demand commodities for commercial exploitation due to its premium market value and nutritional content. This study examines size structure sex ratio yellowfin (Thunnus albacares) landed at Bitung Ocean Fishing Port. A total 890 samples were obtained from 23 handline vessels operating in Fisheries Management Area 715 August October 2024. Length weight measurements recorded directly research site. The collected data used characterize ratio. found a...

Mangroves create unique ecological environments, furnishing a habitat opportunity for many species. The majority of published information on mangrove sponges comes from the Caribbean while few data are available Indo-Pacific sponges. In general, species diversity in mangroves is lower than adjacent subtidal habitats both and Indo-Pacific. aim this study to report first about sponge two forests Bangka Island (North Sulawesi, Indonesia) describe new associated with mangroves. survey found 19...

Penelitian ini bertujuan untuk mengetahui lama pengeringan ikan selar (Selaroides sp) asin dihubungkan dengan kadar air dan nilai organoleptiknya. Metode yang digunakan dalam penelitian merupakan metode eksperimen. eksperimen bagian dari kuantitatif dilaksanakan di laboratorium. Dari hasil uji dapat dilihat hubungan menunjukan semakin diberikan maka rendah produk asin, rata-rata tertinggi adalah 50,30% yaitu pada perlakuan 4 jam, sedangkan terendah 20,91% 16 jam. Hal dinyatakan bahwa sangat...

This study represents a preliminary systematic reorganization of the critical whip black coral genus Stichopathes from Indonesia, and validation test its principal morphological features as suitable taxonomic characters. A phylogenetic analysis based on rDNA internal transcribed spacer sequences ITS1 ITS2 was performed several specimens coming different areas Indonesian Archipelago. Within family Antipathidae, these analyses confirmed separation three traditional genera corals (Stichopathes,...

Penelitian ini bertujuan untuk mengetahui dan mempelajari tentang pengolahan cumi-cumi (Loligo sp) asin kering dihubungkan dengan kadar air tingkat kesukaan konsumen. Cara perlakuan awal menggunakan alat pengering buatan sumber panas dari sinar matahari lama pengeringan 5 jam suhu 30–31°C dilanjutkan kompor 45–60°C. Hasil penelitian menunjukkan nilai pada sudah memenuhi standar mutu SNI (2326:2010) sehingga masih layak dikomersilkan, 20%. Sedangkan ini, 19,85% 12 kompor. Berdasarkan uji...

Red seaweed (Kappaphycus alvarezii) is one type of algae that produced carrageenan. Carrageenan can be used as a stabilizer, thickening agent, gelling emulsifier, coagulant agents, colloid protective and crystallization-preventing agents. This property widely in the food industry, pharmaceuticals, cosmetics, textiles, paint, toothpaste other industries. research aims to determine yield semi-refined carrageenan (SRC) compare quality red prepared by two difference methods i.e. sun drying...

Semi-refined carrageenan are a type of carrageeanan product that have low level purity because it still contains small amount selulose within the carageenan. The purpose this study is to find out effect concentration both NaOH and KOH towards rendemen, physical chemical charactheristic semi refined made from kappaphycus alvarezii seaweed, also minimize use on SRC production process. method used in steaming method. results rendemen 10% 14%. This proves alkali affects rendemen. higher used,...

The purpose of this study was to determine the phytochemistry content dried seaweed Eucheuma denticulatum and Kappaphycus alvarezii using methanol ethanol as solvents measure total plate count (TPC) in simplicia alvarezii. results showed that Kappahycus extract with contained bioactive compounds such Flavonoids, Saponins, Tannins, Terpenoids, Phenols Alkaloid Dragendorf reagents Wagner reagents. However, alkaloid not found Mayer both seaweed. Moreover, steroid only identified extracts...

Fishball is a fish product that knows for their distinctive taste and chewy texture. The quality of fishball greatly affects the attractiveness consumers to consume it, regarding aroma. ingredients have properties as an emulsifying carrageenan. purpose this study was determine tuna fishballs substituted with carrageenan flour different concentrations storage times. treatment design used RAL (completely randomized design) which consisted 4 concentration treatments added carrageenan, 0%, 1%,...

There are a large variety and quite abundant types of small pelagic fish that have high economic value in the Sulawesi Sea. One which is blue scad or commonly known as malalugis (Decapterus macarellus). This study aims to analyze determine status fisheries management develop recommendations waters Sea, North Province. The evaluation fishery carried out using multi-criteria analysis (MCA) through development composite index each indicator Ecosystem Approach Fisheries Management (EAFM)....

Ikan merupakan salah satu bahan makanan yang tidak asing lagi bagi masyarakat Indonesia, ini memiliki kelebihan yaitu mengandung asam amino essensial diperlukan oleh tubuh, disamping itu nilai biologisnya mencapai 90% dengan jaringan pengikat sedikit sehingga mudah dicerna, selain harganya jauh lebih murah dibandingkan sumber protein lainnya (Adawyah, 2007). Penelitian diharapkan dapat memberikan informasi tentang kajian mutu ikan kayu (Katsuobushi) secara kimia dan mikrobiologi pada...

Tujuan penelitian ini dilakukan untuk mengetahuikandungan fitokimia, kadar total fenoldan aktivitas antioksidan yang terdapat pada H.durvillaeyang diekstraksi menggunakan pelarut etanol dan etyl asetat. Analisa uji fitokimiameliputi alkaloid, flavonoid, saponin, steroid triterpenoid ),kadar fenol folin Ciocalteau menggunakan1,1-diphenyl-2-picrylhydrazyl(DPPH). Hasil analisis kandungan fitokimia diperoleh bahwa ekstrak H.durvilaemengandungalkaloid dengan pereaksi wagner, flavonoid fengan...

Artisanal and small-scale gold mines (ASGMs) have been accompanied by widespread usage of mercury amalgamation to extract from ores, putting Indonesia among the top three global emitters this pollutant posing potential risks marine ecosystem human health. Although use has largely eliminated following signature Minamata Convention on Mercury, practice in ASGM persisted several regions, including North Sulawesi. This study assesses how contamination other trace elements coming both industrial...

Sonneratia alba mangroves are known to have bioactive compounds such as antibacterial. The purpose of this study was determine the antibacterial activity extract S. dried mangrove leaves on Gram positive Staphylococcus aureus and negative Escherichia coli bacteria. Extraction method by infusion, extraction time is 40 50 minutes. obtained then evaporated solvent above water bath extracts were made concentrations 5 10%. Antibacterial testing uses modified Kirby-Bauer method. highest yield...

Fish is one of the perishable food, freezing technique an effective method in storage fishery products. The process and thawing can also cause damage to fish meat such as occurrence protein denaturation which results loss water holding capacity influence decrease sensory quality (odor, texture, color). This study aims determine effect freez-thaw cycle on Skipjack quality. Freezing for 24 hours at -24.2ºC freezer temperature refrigerator ± 2,4ºC. Freez-thaw done repeatedly, 1 time, 2 times, 3...

Rumput laut merah Kappaphycus alvarezii merupakan salah satu komoditas ekspor dan program utama revitalisasi perikanan yang berperan penting dalam peningkatan kesejahteraan masyarakat karena mengandung zat karaginan bahan campuran industri pangan non pangan. Penelitian ini bertujuan untuk mengetahui kualitas semi-refined carrageenan rumput dikeringkan dengan menggunakan cabinet dryer. konsentrasi larutan KOH 8% serta metode pengeringan dryer suhu 50–60°C. Hasil penelitian menunjukkan bahwa...

Kolagen adalah jenis protein berbentuk serabut atau fibril yang merupakan komponen struktural utama dari jaringan pengikat meliputi hampir 30% total pada organ tubuh vertebrata maupun invertebrata. banyak dimanfaatkan dalam berbagai bidang diantaranya industri; pangan, kosmetik, farmasi, kedokteran, fotografi dan sebagainya. Penelitian ini bertujuan untuk mengetahui pengaruh perbedaan konsentrasi asam asetat lama waktu ekstraksi kolagen kulit ikan situhuk hitam (Makaira indica). Pada...

Di Sulawesi Utara, tepatnya di Kabupaten Minahasa Utara masih memiliki hutan mangrove yang cukup luas , salah satunya pesisir Wori menjadi lokasi penting penyebaran Sonneratia alba. Buah S . alba berpotensi sebagai sumber bahan pangan karena mengandung zat bioaktif baik untuk kesehatan. Selain Pangan Fungsional antioksidan, perlu juga digali potensi lain terkandung pada tepung buah S.alba seperti Kandungan Serat. Tujuan Penelitian ini adalah mempelajari dan membandingkan serat kasar S. muda...

Tujuan penelitian ini. Untuk mendapatkan esktrak kulit buah manggis (Garcinia Mangostana L) yang dikeringkan selama 4 dan 8 hari sebagai bahan pengawet. Hasil diperoleh dari ikan cakalang asap direndam dalam larutan Manggis memiliki nilai Total Plate Count tertinggi terdapat pada ke 10 waktu pengeringan lama perendaman 15 menit dengan 1,50 koloni/gram. Sedangkan Nilai terendah 0 30 2,6 Data Pigmen kandungan 68,67g/g. sedangkan 19,95g/g. hasil Antosianin memperoleh kadar 191,12 mg/L 62,37 mg/L.

During scientific expeditions in Indonesia and Vietnam, several sponge specimens belonging to the genus Cladocroce were collected. The integration of morphological molecular analyses, incorporating species delimitation models (ABGD, ASAP, bPTP) phylogenetic approaches using three markers (COI, 28S, 18S–ITS1–5.8S–ITS2–28S), allowed us discriminate congeneric species. Two these (C. burapha C. pansinii sp. nov.) supported by data, whereas a third lamellata was delimited data only. We formally...