Atlantic bonito (Sarda) genomic analysis reveals population differentiation across Northeast Atlantic and mediterranean locations: Implications for fishery management.
Mar Environ Res
; 196: 106408, 2024 Apr.
Article
in En
| MEDLINE
| ID: mdl-38402010
ABSTRACT
The Atlantic bonito (Sarda, family Scombridae) is a pelagic species and one of the most exploited small tuna species. Despite its economic importance, biological information is scarce with no associated management directives. In this study, using a population genomic approach resulted in a lack of panmixia of two genetic pools with different effective population sizes (east central-tropical Atlantic and northeast Atlantic-Mediterranean) and an intermixing zone in Atlantic Morocco. The absence of genetic heterogeneity between the locations in Atlantic - Mediterranean transitional zone adds new evidence that challenges the Strait of Gibraltar as a phylogeographic barrier for marine pelagic species. These results are proposed to the ICCAT Commission to establish management areas for this species, although they are not consistent with the recently adopted pelagic ecoregions. Finally, a panel of highly informative SNPs was developed for efficient and low-cost population assignment and the analysis of unresolved population structures.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Tuna
/
Fisheries
Limits:
Animals
Language:
En
Journal:
Mar Environ Res
Journal subject:
BIOLOGIA
/
SAUDE AMBIENTAL
/
TOXICOLOGIA
Year:
2024
Document type:
Article
Affiliation country:
Spain