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Título

Esterase activities and lipid peroxidation levels in offshore commercial species of the NW Mediterranean Sea

AutorSolé, Montserrat ; García de la Parra, L. M.; Alejandre-Grimaldo, S.; Sardà, Francisco
Palabras claveBlue whiting
Greater forkbead
Hake
Norway Lobster
Colinesterases
Lipid peroxidation
Carboxylesterase
Micromesistius poutassou
Phycis blennoides
Merluccius merluccius
Nephrops norvegicus
Fecha de publicacióndic-2006
EditorElsevier
CitaciónMarine Pollution Bulletin 52(12): 1708-1716 (2006)
ResumenThere is a lack of information on monitoring neurotoxicity in offshore commercial species. To help fill this gap, we sampled hake (Merluccius merluccius) and Norway lobster (Nephrops norvegicus) in fishing grounds off the coast of l’Ametlla de Mar (NW Mediterranean) in June 2005 at a depth of 100 m and 400 m. Additionally, at 400 m depth, two other fish species, Micromesistius poutassou and Phycis blennoides were included. Neurotoxicity markers such as Colinesterases (ChEs), namely acethyl- (AChE), butyryl- (BChE), propionyl-(PrChE) and carboxilesterase (CbE) were measured in muscle. Lipid peroxidation (LP), a marker of oxidative damage, was also included. The results are discussed in relation to the animal’s sex, size and fishing depth. A comparison of esterases and LP levels between muscle and liver of hake and between muscle and hepatopancreas of Norway Lobster was made. AChE was dominant in muscle and CbE in hepatopancreas. No differences between fish species were seen for AChE. However, N. norvegicus, presented lower levels of ChEs and LP. A size-dependence in ChEs was seen for M. merluccius, with larger animals showing significantly lower activities (p < 0.05). Sex-dependence was seen in N. norvegicus for most esterases, except AChE, with males displaying higher activities (p < 0.05). A sampling-depth effect was also seen in the crustacea, with animals from 100 m generally presenting lower esterase activities and higher LP levels.
Descripción9 pages, 3 figures, 3 tables
Versión del editorhttp://dx.doi.org/10.1016/j.marpolbul.2006.07.015
URIhttp://hdl.handle.net/10261/20294
DOI10.1016/j.marpolbul.2006.07.015
ISSN0025-326X
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