Amnesic shellfish poisoning (ASP) toxins in plankton and molluscs from Luanda Bay, Angola

Blanco, Juan; Livramento, Filomena; Rangel, I. Menezes

doi:10.1016/j.toxicon.2009.10.008

Cited by 27 publications

(19 citation statements)

References 22 publications

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“…Comparing four shellfish species, the lowest DA concentrations were determined in M. galloprovincialis, followed by A. noae , V. verrucosa and M. barbatus (Table ). Differences in DA accumulation among shellfish species have been reported previously (Vale & Sampayo ; Blanco et al ; Ujević et al ; Mafra et al ; Rijal Leblad et al ; Bouchouicha‐Smida et al ) and could be explained by reference to their different feeding mechanisms and toxin depuration rates (Mafra et al ). Interspecific differences in clearance rate and selective feeding during exposure to the toxic phytoplankton species has been reported (Leverone et al ; Mafra et al ; Skejić et al ), along with differences in toxin depuration rates (Douglas et al ; Blanco et al ; Mafra et al ).…”

Section: Discussionmentioning

confidence: 53%

Taxonomical diversity of Pseudo‐nitzschia from the Central Adriatic Sea

Arapov

Skejić

Bužančić

et al. 2017

Phycological Research

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SUMMARY The aim of our research was to study the composition of Pseudo‐nitzschia species during a period when neurotoxin domoic acid (DA) was present in shellfish. Sampling was conducted in Kaštela Bay (Central Adriatic Sea), between November 2015 and January 2016. Concentrations of DA analyzed in various shellfish species were low, below the regulatory limit, while the highest abundance of Pseudo‐nitzschia spp. reached 1.85 × 105 cells L−1 in the surface layer, at the beginning of November. Within the temperature and salinity range recorded during the investigated period, a positive correlation of Pseudo‐nitzschia spp. abundance was recorded with temperature. Morphological analyses by scanning electron microscopy revealed the presence of five Pseudo‐nitzschia species that had already been reported in the Adriatic Sea – P. calliantha, P. delicatissima, P. fraudulenta, P. pseudodelicatissima /P. cuspidata and P. subfraudulenta – as well as an unknown Pseudo‐nitzschia sp. The composition of the Pseudo‐nitzschia assemblage changed over the investigated period. The species P. pseudodelicatissima/P.cuspidata was found throughout the entire period and the highest diversity was noticed in January, when all six observed species were recorded. These results represent the first taxonomical investigation of the genus Pseudo‐nitzschia in Kaštela Bay, as well as the first report of DA in shellfish from this area.

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Section: Discussionmentioning

confidence: 53%

Taxonomical diversity of Pseudo‐nitzschia from the Central Adriatic Sea

Arapov

Skejić

Bužančić

et al. 2017

Phycological Research

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“…However they remained lower than in other natural ecosystems where they appeared to be harmful (e.g. 1401 pg DA mL −1 in Angola; Blanco et al, 2010), 8000 pg DA mL −1 in the Gulf of Mexico; (Macintyre et al, 2011). Since adverse effect of domoic acid oral exposure on sea bass has never been reported in the literature , and mussel biofiltration did not affect domoic acid concentrations, it is likely that ichtyotoxic effect in our experiment was negligible.…”

Section: Seawater Quality and Its Effects On Juvenile Sea Bass Growthmentioning

confidence: 48%

The use of mussels for mitigating the noxious effect of phytoplankton spring blooms on farmed fish

Delegrange

Vincent

Duret

et al. 2015

Aquacultural Engineering

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“…Total DA concentrations measured during this study (max. 263 pg mL -1 ) were higher than several published values in the EEC-NS ecosystem (up to 7 pg mL -1 ; Downes-Tettmar et al 2013; Klein et al 2010) but remained lower than recent measurements in the Bay of Seine (1.4 ×10 3 pg mL -1 , Thorel et al 2017), and other ecosystems such as Monterey Bay (10×10 pg mL -1 ; Walz et al 1994), the Gulf of Mexico (3.3×10 3 pg mL -1 , Liefer et al 2013) or Luanda Bay, Angola (1.4×10 3 pg mL -1 , Blanco et al 2010).…”

Section: Domoic Acid Concentrations and Pseudo-nitzschia Speciesmentioning

confidence: 62%

Pseudo-nitzschia sp. diversity and seasonality in the southern North Sea, domoic acid levels and associated phytoplankton communities

Delegrange

Lefebvre

Gohin

et al. 2018

Estuarine, Coastal and Shelf Science

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The diversity, toxicity and seasonality of Pseudo-nitzschia sp. were investigated from February to November 2012 in the southern Bight of the North Sea (SBNS) along the French coast. The identification of Pseudo-nitzschia species in this area was addressed for the first time in this study. Our results revealed a low species richness (3 distinct species) in association with moderate (102 pg mL −1) to high (263 pg mL −1) domoic acid (DA) levels in autumn and spring, respectively. Pseudo-nitzschia succession corresponded to the dominance of P. delicatissima in April-May (86% of total diatoms) as a co-occurring species of the Phaeocystis globosa bloom. Following the Phaeocystis bloom (May-September), P. pungens dominated markedly over P. fraudulenta and P. delicatissima and was the only species present in autumn, although at low abundance (<1000 cell L −1). The results of this study support the idea that Pseudo-nitzschia seasonality in the SBNS relies principally on temperature and nutrient availability (DIN and silicates), which, in turn, depend on locally fluctuating environmental conditions (rainfalls and winds). This study highlights the potential for the SBNS to be a potential risk area in regard to the possible impacts of DA on marine resources and the DA transfer through marine food webs. This is of particular concern since DA concentration in seawater was not systematically correlated to potentially toxic Pseudo-nitzschia abundance. Highlights ► Low Pseudo-nitzschia sp. diversity (three species) in the southern North Sea. ► Domoic acid levels reached 263 pg mL −1 in May 2012, 83% as dissolved DA. ► Strong species seasonality driven by temperature and nutrient availability (DIN and silicates). ► Autumnal DA concentrations could be attributed to P. pungens. ► DA concentration was not systematically correlated to Pseudo-nitzschia spp. abundance.

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Amnesic shellfish poisoning (ASP) toxins in plankton and molluscs from Luanda Bay, Angola

Cited by 27 publications

References 22 publications

Taxonomical diversity of Pseudo‐nitzschia from the Central Adriatic Sea

Taxonomical diversity of Pseudo‐nitzschia from the Central Adriatic Sea

The use of mussels for mitigating the noxious effect of phytoplankton spring blooms on farmed fish

Pseudo-nitzschia sp. diversity and seasonality in the southern North Sea, domoic acid levels and associated phytoplankton communities

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