This preliminary study used DNA metabarcoding to test whether the stomach content and gut microbiome of tuna could be a viable near real-time monitoring tool for detecting composition change in oceanic ecosystems. The skipjack ( Katsuwonus pelamis , n=55) yellowfin Thunnus albacares n=46) captured Pacific Ocean during El Niño Southern Oscillation events (ENSO) between 2015-2017 were examined by...

UNLABELLED Filtered smoke (FS) has been used to preserve taste, texture, and/or color in tuna and other fish species. This treatment is particularly important in color preservation during frozen storage. The objective of this study was to compare changes in the quality profiles of FS-treated and untreated (UT) yellowfin tuna (Thunnus albacares) steaks stored in 3 ways: room temperature (21 to 2...

Tujuan dari penelitian ini untuk mengetahui pengaruh penambahan tepung kubis ungu dengan menggunakan pengeringan oven terhadap kualitas nugget ikan tuna sehingga menghasilkan yang terbaik. Rancangan percobaan Acak Kelompok factorial dua factor yaitu konsentrasi (0%, 0,7%, 1,4%, 2,1%, dan 2,8%,) hari (0 3 hari). Parameter diamati adalah kadar air, abu, lemak, protein, bilangan peroksida thiobarb...

Large-scale (100s km) distributions of tuna larvae (family Scombridae), particularly of the commercially important genera Thunnus and Katsuwonus, have been extensively investigated because of the need to identify spawning locations and the possibility of estimating spawning stock biomass from surveys of larvae (Strasburg, 1960; Richards, 1976; Scott et al., 1993). Despite this effort, and the a...

Pasca transportasi telur ikan tuna pada umumnya menghasilkan tingkat penetasan dan kualitas larva yang belum optimal, oleh karena itu dilakukan penelitian untuk meningkatkan pemeliharaan selanjutnya. Tujuan dari ini adalah mengetahui performa dihasilkan dengan sistem tertutup. Penelitian di Balai Besar Riset Budidaya laut penyuluhan perikanan, Gondol-Bali. Perlakuan dalam kegiatan kepadatan yai...

Gelatin and oil from three species of tuna fish, Thunnus albacares (yellow-fin tuna), Thunnus tonggol (long-tail tuna), and Katsuwonus pelamis (skipjack tuna) were extracted to study the factors affecting yield. Factors studied included organ (fin or skin), catch location (Chah bahar, Bushehr, Bandar-e abbas), season (summer or winter) and species (the three species). To extract gelatin and oil...

Yellowfin tuna (Thunnus albacares) are known to preferentially occupy the surface mixed layer above the thermocline and it has been suggested that they are physiologically restricted to water temperatures no more than 8 ◦C colder than surface waters. However, we here report for dive data acquired from a large yellowfin tuna which demonstrate for the first time that this species is indeed capabl...

Large pelagic fish live on the water surface in groups. Skipjack tuna (Katsuwonus pelamis), yellowfin (Thunnus albacares), mackerel (Euthynnus affinis), (Scomberomous guttatus) are species of fishes that mainly catches by fishermen using purse seines. This study aims to determine length and weight large Idi Rayeuk best fishing season. research was conducted one month. Fish samples were collecte...