50 I
I
I
I
I
I
I
t\~1 I I I I i i I
50
Stony Lake
I Crystal Lake
40
I~
40
~ 30 t
30
AM
~20
.fV
20
f
~
Cohort 2
10
I10
Cohort 3
Cohort 1
Cohort 2
Cohort 1
0
0
M
J J A SON D
M
J J A SON 0
M
J
M
J J A SON 0
M
J J A SON 0
M
J
50
50
12 Mile Lake
Boshkung Lake
40
I40
101\
~ 30t
tk
30
J
cf.. 20
~
20
Cohort 2
101Cohort 2
10
1
Cohort 1
Cohort 1
Cohort 3
0
0
MJJASOND
M J J A SON 0
M J
M J
J A SON 0
M
J J A SON D 'M J
Time (months)
Time (months)
FIGURE
6.3. Seasonal changes in the percentage lipid (of dry mass) of juvenile (open circles), immature (open triangles),
and mature (solid circles) mysids from May to November 1990 in the four study lakes. Stony and Crystal lakes are
mesotrophic, and
12 Mile and Boshkung lakes are oligotrophic. Mysid cohorts are presented separately for ease of
illustration. The time for Mvsis
to reach maturity is I year in Stony and 12 Mile lakes and 2 years in Crystal and Boshkung
lakes. Bars represent standard errors. (From Adare and Lasenby, 1994.)
.!;.
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(i)
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a.
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