Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

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) as a Case Study

Fernando Ricardo
* ORCID logo ,
Marta Lobão Lopes
,
Renato Mamede
ORCID logo ,
M. Rosário Domingues
ORCID logo ,
Eduardo Ferreira da Silva
ORCID logo ,
Carla Patinha
ORCID logo ,
Ricardo Calado
* ORCID logo
Version 1 : Received: 15 February 2024 / Approved: 16 February 2024 / Online: 16 February 2024 (07:43:46 CET)

How to cite: Ricardo, F.; Lopes, M.L.; Mamede, R.; Domingues, M.R.; Silva, E.F.D.; Patinha, C.; Calado, R. 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) as a Case Study. Preprints 2024, 2024020880. https://doi.org/10.20944/preprints202402.0880.v1 Ricardo, F.; Lopes, M.L.; Mamede, R.; Domingues, M.R.; Silva, E.F.D.; Patinha, C.; Calado, R. 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) as a Case Study. Preprints 2024, 2024020880. https://doi.org/10.20944/preprints202402.0880.v1

Abstract

Diopatra neapolitana (Delle Chiaje, 1841) 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 threats 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 D. neapolitana 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 for the implementation of an effective management plan for the sustainable use of this marine resource, making possible to detect if D. neapolitana was sourced from no take zones and if it was collected from the place of origin claimed by live baits traders.

Keywords

bait fishing; harvesting; polychaetes; resource management; Ria de Aveiro; sustainability

Subject

Biology and Life Sciences, Food Science and Technology

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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