0000000001219430
AUTHOR
Francesca Falco
Physiological stress indicators in the plasma of Scyliorhinus canicula captured by botto trawling at two depths.
The quantification of capture-related physiological stress is an important factor when assessing the potential for post-release survival in sharks that are incidentally captured. In the absence of these biological data and when the post-release fate is unknown, effective management plans cannot be formulated and may lead to highly susceptible shark populations being overfished. Here, we measured the levels of lactate, glucose, alanine amino transferase (ALT), aspartate amino transferase (AST), Ca2+, Na+ K+,Cl - Mg 2+ and Pi in the plasma of mature and immature lesser spotted dogfish (Scyliorhinus canicula, herein dogfish) which were incidentally captured at two depths (shallow: 50-200 m, an…
Composizione aminoacidica degli occhi di piccoli pesci pelagici in relazione ai processi oceanografici negli habitat di deposizione
Studio della valutare della composizione aminoacidica degli occhi di piccoli pesci pelagici in relazione ai processi oceanografici negli habitat di deposizione. La scelta di proporre uno studio sulla composizione aminoacidica degli occhi di E. encrasicolus è stata suggerita da studi pregressi che ne hanno evidenziato la specificità alla specie. In particolare, le misurazioni morfometriche e le analisi della composizione aminoacidica (AAC), degli enzimi, dei lipidi e carboidrati effettuati sulle larve di acciuga, hanno permesso di valutare se le diverse caratteristiche ambientali delle due aree possono influenzare le larve di Engraulis encrasicolus all’interno del Canale di Sicilia. Si tratt…
Effect of different packaging methods on the free amino acid profiles of the deep-water rose shrimp (Parapenaeus longirostris) during frozen storage
The composition of free amino acids (FAAs) in seafood products contributes to characterizing their flavor, as well as freshness and quality during storage. Deep-water rose shrimps (Parapenaues longirostris, Lucas, 1846) (DWRS) are being increasingly harvested in the Mediterranean Sea, and the captured specimens are quickly frozen onboard fishing trawlers to preserve freshness and post-harvest quality. Here, we quantified the FAA profiles of DWRS packaged using five methods: (1) 100% N2; (2) vacuum; (3) 50% N2 + 50% CO2; (4) commercial anhydrous sodium sulfite; and (5) air (control). All samples were quickly frozen at −35°C and stored for 12 months at −18°C. Arginine (661 mg/100 g), proline …