Seahorses (Hippocampus spp.; Family Syngnathidae) are mainly targeted by Traditional Chinese Medicine, curio and ornamental trade, as dried or live specimens. Traceability tools may help fill the gaps on supply chains, securing information on geographic origin and identification of traded specimens. Fin-clipping, a non-lethal and well-established method in seahorse research, offers a potential approach to trace...
Marine bivalves are increasingly consumed worldwide, with their complex supply chain being particularly prone to fraud. This scenario drives economic losses and is a threat to public health, with multiple recent food worries driving consumers to demand more transparency and information on the seafood they buy. To increase consumers confidence in bivalves and enforce current legislation, robust tools are needed ...
The conservation and sustainable use of marine ecosystems is a worldwide concern, and to achieve it, managers and decision-makers require detailed environmental and biological information, namely supplied as maps of the seafloor. This work was conducted on Portugal’s continental shelf located north of Nazar´e Canyon. Sediment data was obtained in 226 grab samples, of which 169 were used to study the macroinvert...
The common octopus, Octopus vulgaris, is one of the most important cephalopod fisheries in the world. In Mediterranean cuisine, the common octopus is perceived as an ingredient highly valued for its palatability and nutritional value (source of omega 3 fatty acids). However, the polar lipids of this species are still poorly understood. The present study performed the first fingerprinting of the polar lipidome o...
The global market of dried seahorses mainly supplies Traditional Chinese Medicine and still relies on blurry trade chains that often cover less sustainable practices targeting these pricey and endangered fish. As such, reliable tools that allow the enforcement of traceability, namely to confirm the geographic origin of traded seahorses, are urgently needed. The present study evaluated the use of elemental finge...
The wild harvest and aquaculture of Ulva spp. has deserved growing attention in Europe. However, the impact of geographical origin on the biochemical composition of different species and/or strains is yet to be described in detail. Hence, the present study aimed to detect the variability of the lipidome of different species and/or strains of Ulva originating from different geographic locations. We hypothesized ...
Developing methodologies employed to trace the geographic origin of seafood as accurate and fast as possible can help to speed-up the delivery of results to legal authorities, reduce associated costs and minimize environmental impacts (associated with the residues generated). The present study evaluated if trace element fingerprints (TEF) of a small homogenized subsample of Manila clams (Ruditapes philippinarum...
The Manila clam (Ruditapes philippinarum) is one of the most traded bivalves in the world. Knowing its harvesting location is therefore paramount to guarantee the safety of consumers. The present study employs fatty acid (FA) profiles of the adductor muscle (AM) to reveal the most likely harvesting location of four batches of Manila clams suspected of having been illegally sourced from the Tagus estuary. In thi...
The aim of this study was to evaluate the potential added value of Hediste diversicolor, cultured for 5 mo in sand bed tanks supplied with effluent water from a super-intensive marine fish farm, by comparing their fatty acid (FA) profile with that of wild specimens. The polychaetes showed an approximately 35-fold increase in biomass during the experimental period and their FA profile was significantly different...
Embryonic development of decapod crustaceans relies on yolk reserves supplied to offspring through maternal provisioning. Unequal partitioning of nutritional reserves during oogenesis, as well as fluctuating environmental conditions during incubation, can be sources of within-brood variability. Ultimately, this potential variability may promote the occurrence of newly hatched larvae with differing yolk reserves...