Combined Use of Fatty Acid Profiles and Elemental Fingerprints to Trace the Geographic Origin of Live Baits for Sports Fishing: The Solitary Tube Worm ( Diopatra neapolitana , Annelida, Onuphidae) as a Case Study

Delle Chiaje, 1841 (Annelida, Onuphidae) is one of the most exploited polychaete species in European waters, particularly in Ria de Aveiro, a coastal lagoon in mainland Portugal, where the overexploitation of this resource has led to a generalized decline of local populations. In an attempt to reduc...

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Bibliographic Details
Published in:Animals (Basel) 2024-05, Vol.14 (9), p.1361
Main Authors: Ricardo, Fernando, Lopes, Marta Lobão, Mamede, Renato, Domingues, M Rosário, Ferreira da Silva, Eduardo, Patinha, Carla, Calado, Ricardo
Format: Article
Language:English
Subjects:
bait fishing
Case studies
coastal water
Commercial fishing
Fatty acids
Fishing
harvesting
marine resources
Polychaeta
polychaetes
Portugal
provenance
resource management
Ria de Aveiro
Salinity
sustainability
tube worms
Underground economy
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Summary:Delle Chiaje, 1841 (Annelida, Onuphidae) is one of the most exploited polychaete species in European waters, particularly in Ria de Aveiro, a coastal lagoon in mainland Portugal, where the overexploitation of this resource has led to a generalized decline of local populations. In an attempt to reduce the impact of harvesting, several management actions were implemented, but illegal poaching still fuels a parallel economy that threatens the sustainable use of this marine resource. The present study evaluated the combination of fatty acid profiles and elemental fingerprints of the whole body and jaws, respectively, of collected from four harvesting locations within Ria de Aveiro in order to determine if their geographic origin could be correctly assigned post-harvesting. Results showed that both fatty acid profiles and elemental fingerprints differ significantly among locations, discriminating the geographic origin with higher accuracy when combining these two natural barcodes than when employing each individually. The present work can, therefore, contribute to the implementation of an effective management plan for the sustainable use of this marine resource, making it possible to detect if was sourced from no-take zones and if it was collected from the place of origin claimed by live bait traders.
ISSN:2076-2615
2076-2615
DOI:10.3390/ani14091361