Because urea is bioenergetically expensive to synthesize, few aquatic teleostean (bony) fish make or excrete much urea beyond early development and excrete the majority of nitrogenous waste as the readily diffusible ammonia. The gulf toadfish is one of a few adult teleostean fish that excretes predominantly urea. Most studies of chemosensing by fish predators have focused on amino acids as odor...

Driven by growing prevalence of chronic diseases and consumer’s health awareness, food supplements nutraceuticals based on omega-3 polyunsaturated fatty acids (PUFAs) are extensively marketed nowadays. However, commercial concentrates still present quality issues related to their purity, bioavailability, easily-oxidizable nature, compelling the industry seek for more efficient extraction, conce...

Seafood is gaining in popularity because of its health benefits. At the same time, large amounts fish waste are being generated, mostly from industrial processing fish. These quantities have not been utilized efficiently, and disposal can negative impacts on local environments. Unutilized often disposed by land fill or incineration, dumping into sea. Therefore, there an urgent need to find ecol...

Sex hormones produced in humans and livestock are excreted in the urine. Naturally produced and synthetic contraceptive pill estrogens may pass low-quality waste water processing plants and feminize male fish in streams and coastal areas downstream such discharges [1,2]. High-quality processing of the wastewater with tertiary treatment, nutrient removal and sufficient water and sludge retention...

Offshore fish farming is predicted to increase in the near future driven by the lack of coastal space. In this review I discuss the environmental issues of offshore farming from experience in coastal farms. Even more so than in coastal farms, a rapid and wide dispersal of dissolved waste products is predicted for offshore farms. Despite wider dispersal of particulate waste products, fast sinkin...

MSME Anugrah Mina Lestari utilizes milk fish bone and intermuscular from grill cake processing as cracker shredded an effort to zero waste. The problem of these products was oily enough the dryness not uniform. Serving Doctoral Programmed provided solution by help with spinner machine oven drying. With equipment assistance, partner this programmed, can increase product until 66.6% (fish cracker...