scholarly journals Diel vertical migration of sea scallop larvae Placopecten magellanicus in a shallow embayment

1990 ◽  
Vol 67 ◽  
pp. 19-25 ◽  
Author(s):  
MJ Tremblay ◽  
M Sinclair
Keyword(s):  
Vertical Migration ◽  
Diel Vertical Migration ◽  
Placopecten Magellanicus ◽  
Sea Scallop ◽  
Scallop Larvae

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.

Planktonic Sea Scallop Larvae (Placopecten magellanicus) in the Georges Bank Region: Broadscale Distribution in Relation to Physical Oceanography

1992 ◽  
Vol 49 (8) ◽  
pp. 1597-1615 ◽  
Author(s):  
M. John Tremblay ◽  
Michael Sinclair
Keyword(s):  
Larval Abundance ◽  
Physical Oceanography ◽  
Georges Bank ◽  
Placopecten Magellanicus ◽  
Physical Processes ◽  
Scotian Shelf ◽  
Northern Flank ◽  
Sea Scallop ◽  
Scallop Larvae ◽  
The Mean

During autumn surveys for sea scallop larvae (Placopecten magellanicus) from 1985 to 1987, the mean abundance of sea scallop larvae on the northeast part of Georges Bank (1201–20080∙m−2) was much greater than on the southern Scotian Shelf (5–240∙m−2). Few larvae were collected between these two areas, and exchange between Georges Bank and the Scotian Shelf appears very limited. Transects across the northern flank in 1988 revealed peaks in larval abundance when on-bank temperature stratification was high. Relative larval abundance on the transects was positively related to the speed of the along-front current, suggesting physical convergence of larvae. The on-bank retention of scallop larvae on Georges Bank appears to be due to physical processes alone, since scallop larvae undertake only limited diel vertical migration. Larval exhange among adult scallop aggregations on Georges Bank (the northeast peak, the southeast part, and the South Channel) is probable, but evidence from this study is limited. The autumn production of late-stage larvae on the northern flank and northeast peak of Georges Bank is estimated to range from 120 to 1500∙m−2, which is 10–100 times greater than the density of scallops aged 1–2 yr.

Diel vertical migration of mesozooplankton in the northern Yellow Sea

2021 ◽  
Author(s):  
Ruping Ge ◽  
Hongju Chen ◽  
Guangxing Liu ◽  
Yanzhong Zhu ◽  
Qiang Jiang
Keyword(s):  
Vertical Migration ◽  
Yellow Sea ◽  
Diel Vertical Migration ◽  
Northern Yellow Sea

scholarly journals DIEL VERTICAL MIGRATION OF Gonyostomum semen (Raphidophyceae) IN KAWAHARA LAKE

2002 ◽  
Vol 46 ◽  
pp. 1061-1066 ◽  
Author(s):  
Youichi TAKEMOTO ◽  
Katsuhiro FURUMOTO ◽  
Akihide TADA
Keyword(s):  
Vertical Migration ◽  
Diel Vertical Migration ◽  
Gonyostomum Semen
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