Toxicity of adductor muscles from the purple hinge rock scallop (Crassadoma gigantea) along the Pacific coast of North America

Beitler, Mark K.

doi:10.1016/0041-0101(91)90225-g

Cited by 9 publications

(5 citation statements)

References 18 publications

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“…Such models can be constructed for a wide variety of temperate and tropical shellfish. In particular, the information on the anatomical partitioning of toxins in different body compartments is especially relevant, because only specific body parts (e.g., the adductor muscle) are consumed in certain shellfish [22,23]. The biokinetic model developed here makes it possible to calculate PST concentrations in individual tissue compartments as well as the whole mussel based on estimates of the density and toxin load of the dinoflagellates in the water over time.…”

Section: Discussionmentioning

confidence: 99%

Uptake and depuration of paralytic shellfish toxins in the green‐lipped mussel, Perna viridis: A dynamic model

Hsieh

et al. 2005

Enviro Toxic and Chemistry

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Uptake and depuration of paralytic shellfish toxins in the green-lipped mussel, Perna viridis, were investigated by exposing the mussels to dinoflagellates (Alexandrium tamarense, ACTI01) under laboratory conditions for 8 d, then depurating them in clean seawater for 14 d. First-order linear differential equations were set up for five tissue compartments: Viscera, gill, hepatopancreas, adductor muscle, and foot. The solutions to these equations were used to fit the experimental data. We then estimated the parameters governing the model, which depend on the elimination rate from each compartment and the transfer coefficient between compartments. An assumption of the model is that the gills transport the dinoflagellates directly to the mouth and then to the viscera, where the ingested cells are broken down, releasing the toxins. The toxins absorbed are transferred to other tissues. During the uptake phase, the transfer coefficients from viscera to gill, hepatopancreas, adductor muscle, and foot were 0.03, 0.24, 0.01, and 0.004 per day, respectively. During the depuration phase, the transfer coefficients were 0.01, 0, 0.01, and 0.003 per day, respectively. In terms of the anatomical distribution of N-sulfocarbamoyl-11-hydroxysulfate (C2) toxins in various tissues, viscera and hepatopancreas contained the highest percentages (47-74% and 8-41%, respectively). Together, these two tissue compartments accounted for 71 to 96% of all C2 toxins present. The biokinetic model allows a quantitative prediction of C2 toxins in whole ussel as well as individual tissue compartments based on the density estimates and toxin load of dinoflagellate cells in the surrounding waters over time.

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Section: Discussionmentioning

confidence: 99%

Uptake and depuration of paralytic shellfish toxins in the green‐lipped mussel, Perna viridis: A dynamic model

Hsieh

et al. 2005

Enviro Toxic and Chemistry

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“…The preferential accumulation of paralytic toxins in some organs (digestive gland, kidneys) could account for this apparent paradox. This is particularly the case for pectinids, as the low correlation between adductor muscle and digestive gland toxicities makes it difficult to predict whether the meat is safe or not for human consumption (Beitler, 1991;Lassus et al, 1992;Cembella et al, 1994).…”

Section: Introductionmentioning

confidence: 99%

Paralytic shellfish poison accumulation yields and feeding time activity in the Pacific oyster (Crassostrea gigas) and king scallop (Pecten maximus)

Bougrier¹

2003

Aquatic Living Resources

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Pacific oysters and king scallops placed individually in a recirculating flume were fed for 2 weeks with a constant concentration (120 cell ml -1 ) of a toxic strain of Alexandrium minutum. Fluorescence at the outlet of each experimental unit was measured continuously, and biodeposits were recovered twice daily to evaluate feeding time activity (FTA) and rates of organic filtration (OFR), ingestion (OIR) and organic absorption (OAR). Ion-pairing high performance liquid chromatography (IP-HPLC) was performed concurrently to quantify paralytic phycotoxins both (i) individually in shellfish at the end of the contamination period and (ii) in A. minutum cultures to estimate cellular toxin concentration. These data allowed comparison of the actual tissue toxin concentration (TOX) with the theoretical toxin accumulation rate (TAR) calculated from the linear relations between OAR, cell number, fluorescence and cell toxicity. The results show high FTA/TAR and FTA/TOX correlations (R 2 = 0.78) for both oysters and scallops. The TAR/TOX relation, though not yet clearly defined, suggests the minimum quantity of absorbed toxin at which the accumulation process is induced. RésuméRendements d'accumulation des toxines paralysantes (IPFM) et fréquence d'activité nutritionnelle de l'huître creuse (Crassostrea gigas) et de la coquille Saint-Jacques (Pecten maximus). Des huîtres creuses et des coquilles Saint-Jacques ont été placées individuellement dans un circuit fermé et nourries pendant 2 semaines avec un apport constant d'Alexandrium minutum (souche toxique) à la concentration de 120 cell ml -1 . La fluorescence en sortie de chaque enceinte expérimentale a été mesurée en continu et la production de biodépôts évaluée 2 fois/j afin de calculer la fréquence d'activité alimentaire (FTA), le taux de filtration organique (OFR), le taux d'ingestion et d'absorption organique (OIR et OAR). Des analyses en chromatographie liquide par appariement d'ions ont été réalisées en même temps afin de quantifier les concentrations de toxines paralysantes présentes : dans les coquillages contaminés en fin de période de contamination et dans les cultures d'A. minutum. Ces données ont permis de comparer les concentrations en toxines réellement observées dans les tissus (TOX) avec le taux d'accumulation théorique des toxines (TAR) calculé à partir des relations linéaires établies entre OAR, nombre de cellules, fluorescence et toxicités. Les résultats montrent des coefficients de corrélation élevés (R 2 = 0,78) aussi bien pour FTA/TAR que pour FTA/TOX, à la fois pour les huîtres et pour les coquilles Saint-Jacques. La relation TAR/TOX, une fois validée, permettrait d'approcher la notion de quantité minimale de toxine absorbée pour déclencher le processus d'accumulation de toxines.

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“…Rock scallop (C. gigantea), which belongs to Mollusca, Lamellibranchia, Pterioida, was native to North America Pacific coast (Beitler et al 1991). There are several valuable characteristics making rock scallop favored in the international market, including fast growth, strong resistance and delicious meat.…”

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confidence: 99%

Characterization and phylogenetic analysis of the complete mitochondrial genome from Rock Scallop (Crassadoma gigantea) using next-generation sequencing

Liao

Zhou

Tong

et al. 2018

Mitochondrial DNA Part B

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2018) Characterization and phylogenetic analysis of the complete mitochondrial genome from Rock Scallop (Crassadomagigantea) using next-generation sequencing, ABSTRACTIn this study, the complete 18,495 bp mitochondrial genome was determined from Rock scallop (Crassadoma gigantea) using next-generation sequencing technology. The complete mitochondrial genome contained 12 protein-coding genes (PCGs), 2 ribosomal RNA genes, 23 transfer RNA genes, without ATP8 and D-loop, which was similar with most mitochondrial genomes of marine bivalve molluscs. Gene annotations, including gene order, genetic code, start and stop codons and codons bias, were identified. Phylogenetic tree was constructed using Neighbor-Joining (NJ) method based on the PCGs showed the present species clustered within the Pteriomorphia clade. This work should be of importance not only for the better understanding of the relationships within Pectinidae, but also for the development of useful genetic markers in Rock scallop aquaculture and restoration efforts. ARTICLE HISTORY

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Toxicity of adductor muscles from the purple hinge rock scallop (Crassadoma gigantea) along the Pacific coast of North America

Cited by 9 publications

References 18 publications

Uptake and depuration of paralytic shellfish toxins in the green‐lipped mussel, Perna viridis: A dynamic model

Uptake and depuration of paralytic shellfish toxins in the green‐lipped mussel, Perna viridis: A dynamic model

Paralytic shellfish poison accumulation yields and feeding time activity in the Pacific oyster (Crassostrea gigas) and king scallop (Pecten maximus)

Characterization and phylogenetic analysis of the complete mitochondrial genome from Rock Scallop (Crassadoma gigantea) using next-generation sequencing

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