The choice of bait is one the fisheries tactics used to increase selectivity for particular target species. performance three types (mackerel, sardine, squid) was evaluated with a commercial vessel operating in Equatorial Atlantic Ocean using deep-set pelagic longline deployment method large yellowfin and bigeye tunas. effect different factors covariates on Capture per Effort Unit - CPUE throug...

Gelatin isolated from limed split wastes can be a high value product due to its special characteristics and has many potential future applications in Food, functional additives, Food and pharmaceutical industries. Concentrations of sodium hydroxide, sulfuric and acetic acids used in processing gelatin from Narrow barred, Carcharhinus Leucas, Siganus Sutor and Indo Pacific king mackerel skins af...

Recent physiological studies on the cardiovascular performance of tunas suggest that the elevated heart rates of these fish may rely on increased use of intracellular sarcoplasmic reticulum (SR) Ca2+ stores. In this study, we compare the cellular cardiac performance in endothermic tunas (bluefin, albacore, yellowfin) and their ectothermic sister taxa (mackerel) in response to acute temperature ...

eco-innovation is an actual topic as it links two key issues, innovation and sustainability. theenvironmental respect and innovation are important drivers of competitiveness. firms are willing to knowwhat to do to improve their eco-innovative capacity. the objective of this paper is to empirically determinewhat common characteristics have the most environmental oriented innovative firms. we ana...

Collagenases are the most important group of commercially-produced enzymes. However, even though biological resources are abundant in the sea, very few of these commercially popular enzymes are from marine sources, especially from marine bacteria. We optimized the production of marine collagenases by Pseudoalteromonas sp. SJN2 and investigated the antioxidant activities of the hydrolysates. Med...

Ciguatera Fish Poisoning (CFP) is a tropical disease caused by the consumption of fish contaminated with ciguatoxins (CTXs). Currently, the only feasible prevention methods for CFP are to avoid the consumption of fish of certain species from some regions, avoid larger fish of certain species, or avoid all fish caught from specific regions. Here, we quantified levels of P-CTX-1B in Spanish Macke...

G-Actin was extracted from the acetone powder of the dark muscle of mackerel Pneumato phorus japonicus japonicus, and purified by a method which essentially consisted of polymerization in 0.1M KCl containing 0.1mm MgCl2, treatment with 0.6M KCI, and Sephadex G-200 gel filtration . Sedimentation constant (s020,w) of the dark muscle actin was 2.9S. The molecular weight was determined to be 42,000...

In the present study, we investigated the effect of collagen and collagen peptides from bluefin tuna abdominal skin on cancer cells. Collagens were extracted from bluefin tuna (Thunnus orientails) abdominal, mackerel, and carp skin. The calf and salmon collagen were used reagent grade as a standard samples. The main protein band pattern produced by SDS-PAGE of all collagen samples consisted of ...