Evaluation and quantification of shell damage and survival of the striped venus clam (Chamelea gallina) harvested by hydraulic dredges.
Coastal waters
Discards
Fishery management
Fishery regulations
Hydraulic dredging
Shell damage
Striped venus clam
Survivability
Journal
Marine environmental research
ISSN: 1879-0291
Titre abrégé: Mar Environ Res
Pays: England
ID NLM: 9882895
Informations de publication
Date de publication:
May 2023
May 2023
Historique:
received:
23
12
2022
revised:
20
02
2023
accepted:
15
03
2023
medline:
17
4
2023
pubmed:
21
3
2023
entrez:
20
3
2023
Statut:
ppublish
Résumé
The impact of hydraulic dredging on Chamelea gallina populations in the mid-western Adriatic Sea was assessed by evaluating and quantifying the damage exerted on harvested (non-sieved) and sorted (sieved by the mechanical vibrating sieve: commercial or discarded) individuals and by estimating the survival probability of discarded clams. The results showed that: i) dredging had a higher impact on determining shell damage than the mechanical vibrating sieve, ii) damage probability was strongly associated with shell length and in discard samples the effect of the shell length was greater due to the longer time spent by the individuals inside in the vibrating sieve before being rejected to the sea, iii) the survivability of the entire discarded fraction of clams was high. The findings support the Regulation (CE) 1380/2013 which foresees that discards from the Venus clam fishery must be returned to the sea and shall not be landed.
Identifiants
pubmed: 36940559
pii: S0141-1136(23)00082-X
doi: 10.1016/j.marenvres.2023.105954
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
105954Informations de copyright
Copyright © 2023. Published by Elsevier Ltd.
Déclaration de conflit d'intérêts
Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper