Stress related blood values in Scyliorhinus canicula as live-indicators of physiological status after bottom trawling capture activity
Type | Article | ||||||||||||||||
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Date | 2023-01 | ||||||||||||||||
Language | English | ||||||||||||||||
Author(s) | Falco Francesca1, Bono Gioacchino1, Cammarata Matteo2, Cavalca Jessica1, Vazzana Irene3, Dara Mariano2, Scannella Danilo1, Guicciardi Stefano4, Faggio Caterina4, Ragonese Sergio1 | ||||||||||||||||
Affiliation(s) | 1 : Institute of Marine Biological Resources and Biotechnologies, National Research Council (CNR), Mazara del Vallo, Italy 2 : Marine Immunobiology Laboratory, Department of Earth and Marine Sciences, University of 8, Palermo, Italy 3 : Istituto Zooprofilattico della Sicilia (IZSS), Italy 4 : Institute of Marine Biological Resources and Biotechnologies, National Research Council CNR) 11, Ancona, Italy |
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Source | Comparative Biochemistry And Physiology B-biochemistry & Molecular Biology (1096-4959) (Elsevier BV), 2023-01 , Vol. 263 , P. 110802 (9p.) | ||||||||||||||||
DOI | 10.1016/j.cbpb.2022.110802 | ||||||||||||||||
WOS© Times Cited | 4 | ||||||||||||||||
Keyword(s) | Scyliorhinus canicula, Bottom trawling, Stress indicators, Biomarkers, South of Sicily, Central Mediterranean Sea | ||||||||||||||||
Abstract | 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, and deep: 201-500 m) by bottom trawl off the coast of southern Sicily. These values were used as biomarkers and physiological indicators of the secondary stress response associated with capture. This study found that dogfish captured in deeper waters (below 200 m) had elevated levels of glucose, Na+, Ca2+ and K+ compared to those inhabiting depths <200 m. We hypothesize that the elevated levels of physiological stress in dogfish captured at greater depths may be related to the prolonged duration of the interactions with the fishing gear in the area off southern Sicily. Our findings provide new data on the capture-related stress in dogfish and increase the understanding of the potential for post-release survival in sharks captured at two depths by bottom trawl, information that is important for improving the general management plans for the fishery. However, our PC Analysis results revealed that Maturity have a positive contribution from the sample weight, sample length, ALT, AST and a negative contribution from Pi. |
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