Seasonal and multi-annual trends of bivalve toxicity by PSTs in Portuguese marine waters

Botelho, Maria João; Vale, Carlos; Ferreira, J.G.

doi:10.1016/j.scitotenv.2019.01.314

Cited by 23 publications

(14 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Weekly data of the cell density of phytoplankton species producers of PSTs in Aveiro lagoon from 5 th December 2016 to 13 th February 2017 were obtained from the monitoring programme of toxic phytoplankton from the Portuguese Institute for the Sea and the Atmosphere (IPMA, database available at https://www.ipma.pt/pt/bivalves/fito/index.jsp). Most likely, Gymnodinium catenatum was the PST-producer species as it has been reported in previous works in Portugal (Botelho et al, 2019 Figure S1). Detailed information is presented as supplementary material.…”

Section: Toxic Phytoplankton Cellssupporting

confidence: 67%

“…Moreover, strains of the same species may differ depending on various factors, such as population geographic location, life stage, nutrient availability and other environmental conditions (Silva et al, 2015;Negri et al, 2007Negri et al, , 2001; Granéli and Flynn, 2006;Ordás et al, 2004, Oshima et al, 1993. In the Portuguese coastal waters, the phytoplankton species frequently associated with PST contamination in bivalves has been Gymnodinium catenatum (Botelho et al, 2019;Vale et al, 2008). Its toxin profile is typically dominated by N-sulfocarbamoil derivatives (C1 to C4 and GTX5, GTX6) and by GC toxins (GC1 to GC3, GC5, GC6) (Costa et al, 2015;Silva et al, 2015;Negri et al, 2007Negri et al, , 2003.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Paralytic shellfish toxin profiles in mussel, cockle and razor shell under post-bloom natural conditions: Evidence of higher biotransformation in razor shells and cockles

Botelho

Marquês

Freitas³

et al. 2020

Marine Environmental Research

Self Cite

View full text Add to dashboard Cite

This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

show abstract

Section: Toxic Phytoplankton Cellssupporting

confidence: 67%

Section: Introductionmentioning

confidence: 99%

Paralytic shellfish toxin profiles in mussel, cockle and razor shell under post-bloom natural conditions: Evidence of higher biotransformation in razor shells and cockles

Botelho

Marquês

Freitas³

et al. 2020

Marine Environmental Research

Self Cite

View full text Add to dashboard Cite

show abstract

“…The Utermöhl procedure is described in the European Standard En 15204, 2006. Monitoring toxigenic phytoplankton potentially provides an indication and early insight of the potential subsequent onset of toxification of shellfish above regulatory levels (Davidson et al, 2016;Maguire et al, 2016;Botelho et al, 2019). The abundance of harmful phytoplankton generally follows a seasonal cycle with the greatest abundance in spring and summer, and to a lesser extent in autumn months (Coates et al, 2018).…”

Section: Regulations To Avoid Human Poisoningmentioning

confidence: 99%

Current Status of Forecasting Toxic Harmful Algae for the North-East Atlantic Shellfish Aquaculture Industry

et al. 2021

View full text Add to dashboard Cite

Across the European Atlantic Arc (Scotland, Ireland, England, France, Spain, and Portugal) the shellfish aquaculture industry is dominated by the production of mussels, followed by oysters and clams. A range of spatially and temporally variable harmful algal bloom species (HABs) impact the industry through their production of biotoxins that accumulate and concentrate in shellfish flesh, which negatively impact the health of consumers through consumption. Regulatory monitoring of harmful cells in the water column and toxin concentrations within shellfish flesh are currently the main means of warning of elevated toxin events in bivalves, with harvesting being suspended when toxicity is elevated above EU regulatory limits. However, while such an approach is generally successful in safeguarding human health, it does not provide the early warning that is needed to support business planning and harvesting by the aquaculture industry. To address this issue, a proliferation of web portals have been developed to make monitoring data widely accessible. These systems are now transitioning from “nowcasts” to operational Early Warning Systems (EWS) to better mitigate against HAB-generated harmful effects. To achieve this, EWS are incorporating a range of environmental data parameters and developing varied forecasting approaches. For example, EWS are increasingly utilizing satellite data and the results of oceanographic modeling to identify and predict the behavior of HABs. Modeling demonstrates that some HABs can be advected significant distances before impacting aquaculture sites. Traffic light indices are being developed to provide users with an easily interpreted assessment of HAB and biotoxin risk, and expert interpretation of these multiple data streams is being used to assess risk into the future. Proof-of-concept EWS are being developed to combine model information with in situ data, in some cases using machine learning-based approaches. This article: (1) reviews HAB and biotoxin issues relevant to shellfish aquaculture in the European Atlantic Arc (Scotland, Ireland, England, France, Spain, and Portugal; (2) evaluates the current status of HAB events and EWS in the region; and (3) evaluates the potential of further improving these EWS though multi-disciplinary approaches combining heterogeneous sources of information.

show abstract

“…Despite the social benefits that have been obtained from the Atlantic coastal region adjacent to the Mondego River, its present ecosystem services are in danger as a result of multiple pressures from natural and human origin (Teixeira et al, 2014), such as water flow control, through a series of dams and channels (Mantas et al, 2013), water extraction for irrigation projects (Pinto et al, 2013a), organic enrichment from nitrogen and phosphorus (Flindt et al, 1997, Teixeira and, landfills and dredging/sand extraction (Cunha et al, 1998(Cunha et al, , 2006, fisheries (Pinto et al, 2013a), contaminants and marine litter inputs (Bessa et al, 2018;Botelho et al, 2019), presence of invasive species (Franco et al, 2012), sea level rise (Loureiro et al, 2017) and impacts from navigation and harbor activities, such as noise and contaminants (Ceia et al, 2013;Mantas et al, 2013).…”

Section: The Study Areamentioning

confidence: 99%

Ecosystem services as a resilience descriptor in habitat risk assessment using the InVEST model

Vera

Marques

Cunha

et al. 2020

Ecological Indicators

View full text Add to dashboard Cite

Seasonal and multi-annual trends of bivalve toxicity by PSTs in Portuguese marine waters

Cited by 23 publications

References 45 publications

Paralytic shellfish toxin profiles in mussel, cockle and razor shell under post-bloom natural conditions: Evidence of higher biotransformation in razor shells and cockles

Paralytic shellfish toxin profiles in mussel, cockle and razor shell under post-bloom natural conditions: Evidence of higher biotransformation in razor shells and cockles

Current Status of Forecasting Toxic Harmful Algae for the North-East Atlantic Shellfish Aquaculture Industry

Ecosystem services as a resilience descriptor in habitat risk assessment using the InVEST model

Contact Info

Product

Resources

About