 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
§ |
In
MARMAP surveys 1977 –
|
|
|
1987,
Pseudocalanus spp.
|
|
|
shows
a seasonal cycle of
|
|
|
abundance,
with two population
|
|
centers:
|
|
|
Western Gulf of Maine
|
|
Georges Bank
|
|
|
|
§ |
Davis
(1984) hypothesized the
|
|
|
Western
Gulf of Maine is a
|
|
|
source
region for the Georges
|
|
|
Bank
population
|
|
|
§ |
McGillicuddy
et al. (1998)
|
|
|
concluded
that the populations
|
|
|
are
functionally distinct, with
|
|
|
geographically-specific
regions
|
|
|
of
growth and mortality
|
|