Showing papers on "Gadus published in 1973"
TL;DR: A quantitative analysis of the food of cod by means of stomach sampling and special attention is drawn to the amount of cannibalism and to the feeding on other commercially important species, for which also length distributions as observed in the stomachs are provided.
271 citations
TL;DR: Comparative tests showed that, in the concentrations normally encountered in deteriorating frozen gadoid fillets, formaldehyde was a much more active protein-insolubilizing agent than free fatty acid.
Abstract: Addition of formaldehyde to fresh cod muscle, to give concentrations of 10 to 200 ppm, brought about marked decreases in the extractable protein content during holding periods of 24 hr or less at 0 C. Similar levels of formaldehyde, produced during frozen storage of gadoid (Atlantic cod, Gadus morhua, pollock, Pollachius virens, cusk, Brosme brosme, and silver hake, Merluccius bilinearis), fillets at −5 C, brought about similar reductions in the extractable proteins. Comparative tests showed that, in the concentrations normally encountered in deteriorating frozen gadoid fillets, formaldehyde was a much more active protein-insolubilizing agent than free fatty acid. It is evident that in these protein changes more than one mechanism is involved. Observed species-differences in the extent to which fish proteins became insolubilized during storage appeared to be related to presence or absence of these different mechanisms. The more rapid and more extensive denaturation of most gadoid fillets in frozen storage...
84 citations
01 Aug 1973
TL;DR: More cod were caught in a gill‐net during periods with trawling noise than during periods without trawler noise, indicating that trawled noise stimulates increased locomotor activity among cod.
Abstract: More cod were caught in a gill‐net during periods with trawling noise than during periods without trawling noise. This indicates that trawling noise stimulates increased locomotor activity among cod.
12 citations