Paralytic Shellfish Toxins in the Sea Scallop, Placopecten magellanicus, in the Bay of Fundy

1979 ◽  
Vol 36 (1) ◽  
pp. 32-36 ◽  
Author(s):  
C. P. Hsu ◽  
A. Marchand ◽  
Y. Shimizu ◽  
G. G. Sims
Keyword(s):  
Key Words ◽  
Bay Of Fundy ◽  
Placopecten Magellanicus ◽  
Toxic Dinoflagellate ◽  
Paralytic Shellfish Poison ◽  
Shellfish Toxins ◽  
Sea Scallop ◽  
Paralytic Shellfish Toxins ◽  
Paralytic Shellfish ◽  
A Minor

The paralytic shellfish poison of the giant sea scallop, Placopecten magellanicus (Gmelin), from the Bay of Fundy has been analyzed. Of eight toxins isolated, seven were identified with those previously recognized in various sources including the Atlantic toxic dinoflagellate, Gonyaulax tamarensis cells. The major components were gonyautoxin-I, gonyautoxin-II, and neosaxitoxin; saxitoxin was responsible for only a very small portion of the total toxicity. A minor toxin that was eluted between neosaxitoxin and saxitoxin in the chromatography system was found to be new and designated as gonyautoxin-VII. Key words: paralytic shellfish poisons, gonyautoxins, neosaxitoxin, Gonyaulax tamarensis

Paralytic Shellfish Poison in Sea Scallops (Placopecten magellanicus, Gmelin)

1965 ◽  
Vol 22 (5) ◽  
pp. 1137-1149 ◽  
Author(s):  
N. Bourne
Keyword(s):  
Atlantic Coast ◽  
Bay Of Fundy ◽  
Georges Bank ◽  
Placopecten Magellanicus ◽  
Paralytic Shellfish Poison ◽  
Paralytic Shellfish ◽  
Adductor Muscles ◽  
Sea Scallops

Bioassays for paralytic shellfish poison were carried out in sea scallops (Placopecten magellanicus, Gmelin) from the major scallop producing areas off the Canadian Atlantic coast. There was very little or no toxin in Georges Bank or southern Gulf of St. Lawrence scallops. In Bay of Fundy scallops, adductor muscles and gills were poison-free but livers and mantles remained toxic the year round. The highest score of roes in these scallops was 43 μg of toxin per 100 g of roe.

Paralytic Shellfish Poison in Sea Scallops (Placopecten magellanicus) in the West Atlantic

1983 ◽  
Vol 40 (3) ◽  
pp. 313-318 ◽  
Author(s):  
G. S. Jamieson ◽  
R. A. Chandler
Keyword(s):  
Adductor Muscle ◽  
Bay Of Fundy ◽  
Georges Bank ◽  
Placopecten Magellanicus ◽  
Eastern Canada ◽  
The West ◽  
Monthly Basis ◽  
Sea Scallop ◽  
Paralytic Shellfish ◽  
Sea Scallops

Levels of Gonyaulax excavata toxin in sea scallop (Placopecten magellanicus) tissues were monitored in eastern Canada on a monthly basis between 1977 and 1981. All tissues but the adductor muscle were found to be highly toxic in Bay of Fundy scallops, with negligible toxicity observed in scallops from Georges Bank, the outer Scotian Shelf, and Northumberland Strait scallops. Level of Bay of Fundy toxicity was much higher than previously observed (maximum digestive gland toxicity: 150 000 μg/100 g in March 1978), and recent average monthly toxicity for Bay of Fundy scallop roe ranged from 184 to 286 μg/100 g. Considerable fluctuation in toxicity can occur between adjacent months, and peak toxicities in sea scallops occur during fail and winter months. Scallop roe fisheries should be permitted to be established for scallops fished from the northern part of Georges Bank and Northumberland Strait. However, a closed zone for scallop roe should be established in the Bay of Fundy and adjacent Scotian Shelf.Key words: scallop, PSP, Gonyaulax, Placopecten, mollusk

Identification of Planktonic Sea Scallop Larvae (Placopecten magellanicus) (Gmelin)

1987 ◽  
Vol 44 (7) ◽  
pp. 1361-1366 ◽  
Author(s):  
M. J. Tremblay ◽  
L. D. Meade ◽  
G. V. Hurley
Keyword(s):  
Bay Of Fundy ◽  
Placopecten Magellanicus ◽  
Sea Scallop ◽  
Bivalve Larvae ◽  
Scallop Larvae ◽  
Shape And Size

Methods for the collection, processing, and identification of planktonic sea scallop larvae (Placopecten magellanicus) (Gmelin) are described. Bivalve larvae collected from the Bay of Fundy were compared with cultured P. magellanicus larvae. Sea scallop larvae collected from the plankton can be tentatively identified based on shape and size; examination of the larval hinge structure allows confirmation.

Bacterial degradation of paralytic shellfish toxins

Toxicon ◽  
2008 ◽  
Vol 52 (1) ◽  
pp. 91-100 ◽  
Author(s):  
Carrie J. Donovan ◽  
John C. Ku ◽  
Michael A. Quilliam ◽  
Tom A. Gill
Keyword(s):  
Bacterial Degradation ◽  
Shellfish Toxins ◽  
Paralytic Shellfish Toxins ◽  
Paralytic Shellfish
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