svetlana glebova · svetlana glebova cyclicity in formation of the types of synoptic situation...
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Svetlana GlebovaSvetlana GlebovaCyclicity in formation of the types
of synoptic situation above the Far East seas as a factor
of their ecosystems changes
Pacific Fisheries Research Centre (TINRO-centre), Vladivostok, Russia
The present report is devoted to search links The present report is devoted to search links of periodic changes of atmosphere regime of periodic changes of atmosphere regime with of dynamics of some biological with of dynamics of some biological factors.factors.
To indicateTo indicate interannualinterannual changes in changes in ecosystems of the Farecosystems of the Far--East Seas the cited East Seas the cited data on dynamics of the biomass ofdata on dynamics of the biomass of pollockpollockand plankton of theand plankton of the OkhotskOkhotsk and Bering and Bering Seas were used. The sources are listed Seas were used. The sources are listed here:here:
ShuntovShuntov, 2001, 2001Smirnov et all., 2001Smirnov et all., 2001StepanenkoStepanenko, 2001, 2001KlyshtorinKlyshtorin,2000,2000
Types of atmospheric processes formed over theTypes of atmospheric processes formed over theOkhotskOkhotsk and Bering Seas were used for and Bering Seas were used for describing a condition of an atmosphere.describing a condition of an atmosphere.
The types were defined for The types were defined for 1010--days averaged days averaged chartscharts of surface pressure analyzed for the period of surface pressure analyzed for the period of 1980of 1980--2000.2000.
The The positionposition and and intensity intensity criterion of the centers criterion of the centers of action of atmosphere, in particular the Aleutian of action of atmosphere, in particular the Aleutian depression, and also depression, and also direction of winddirection of wind over the over the each sea were used as the each sea were used as the main criteriamain criteria for for definition of the types. definition of the types.
In total, In total, sixsix characteristic characteristic synoptic situationssynoptic situations or or types had been allocated both for thetypes had been allocated both for the OkhotskOkhotskand Bering Seasand Bering Seas..
Generalized synoptic situations appropriate to certain types Generalized synoptic situations appropriate to certain types of atmospheric processes over theof atmospheric processes over the OkhotskOkhotsk and Bering and Bering
Seas (afterSeas (after GlebovaGlebova,1999;2001),1999;2001)
L
Н
Iо Ib IIо IIb
IIIоIIIb Vb
IVb VIо VIb
А B
IVо
Vо
C D
E F
НL Н
L
L
L
Н
Н L
L
Н
Catches Catches in in the Pacificthe PacificOcean (fromOcean (from KlyshtorinKlyshtorin,2000),2000)
Dynamics of theDynamics of the pollockpollock biomass in thebiomass in the OkhotskOkhotsk Sea Sea (from Smirnov,2001) and in the Bering Sea (from(from Smirnov,2001) and in the Bering Sea (from
StepanenkoStepanenko,2001) in the last two decades,2001) in the last two decadesPollock in the Okhotsk Sea
02000400060008000
10000
1984
1986
1988
1990
1992
1994
1996
1998
2000
Years
Biom
ass,t
hs.t
Pollock in the Bering Sea
040008000
1200016000
1980
1983
1986
1989
1992
1995
1998
Years
Biom
ass,t
hs.t
YearYear--toto--year variability of total repeatability of the types of year variability of total repeatability of the types of atmospheric processes, 10atmospheric processes, 10--days per yeardays per year
Bering SeaI type
4
8
12
1980
1982
1984
1986
1988
1990
1992
1994
1996
1998
2000Th
e qua
ntity o
f deca
des
II type
0
4
8
1980
1982
1984
1986
1988
1990
1992
1994
1996
1998
2000Th
e qua
ntity o
f deca
des
III type
0
4
8
1980
1982
1984
1986
1988
1990
1992
1994
1996
1998
2000Th
e qua
ntity o
f deca
des
IV type
4
8
12
16
1980
1982
1984
1986
1988
1990
1992
1994
1996
1998
2000Th
e qua
ntity o
f decad
es
V type
0
4
8
12
1980
1982
1984
1986
1988
1990
1992
1994
1996
1998
2000Th
e qua
ntity o
f deca
des
VI type
0
4
8
12
1980
1982
1984
1986
1988
1990
1992
1994
1996
1998
2000
Years
The q
uantit
y of
decad
es
Sea of OkhotskI type
6
11
16
1980
1982
1984
1986
1988
1990
1992
1994
1996
1998
2000Th
e qua
ntity o
f deca
des
II type
0
4
8
1980
1982
1984
1986
1988
1990
1992
1994
1996
1998
2000Th
e qua
ntity o
f deca
des
III type
0
4
8
1980
1982
1984
1986
1988
1990
1992
1994
1996
1998
2000Th
e qua
ntity o
f deca
des
IV type
4
8
12
1980
1982
1984
1986
1988
1990
1992
1994
1996
1998
2000Th
e qua
ntity o
f deca
des
V type
0
4
8
1980
1982
1984
1986
1988
1990
1992
1994
1996
1998
2000Th
e qua
ntity o
f deca
des
VI type
0
4
8
12
1980
1982
1984
1986
1988
1990
1992
1994
1996
1998
2000
Years
The q
uantit
y of
decad
es
InterannualInterannual dynamics of thedynamics of the pollockpollock biomass in thebiomass in the OkhotskOkhotskSea(Sea(АА) and in the eastern Bering Sea () and in the eastern Bering Sea (BB) on a background of ) on a background of
longlong--term change of repeatability of the types of term change of repeatability of the types of atmospheric processesatmospheric processes
A A BBVIo type
0
2000
4000
6000
8000
10000
12000
14000
1984
1986
1988
1990
1992
1994
1996
1998
2000
Years
Biom
ass,t
hs.t
012345678910
The q
uant
ity of
deca
des
VIb type
02000400060008000
10000120001400016000
1980
1982
1984
1986
1988
1990
1992
1994
1996
1998
2000
Years
Biom
ass,t
hs.t
0
2
4
6
8
10
12
The q
uant
ity of
deca
des
Vo type
0100020003000400050006000700080009000
10000
1984
1986
1988
1990
1992
1994
1996
1998
2000
Years
Biom
ass,
ths.t
0123456789
The q
uant
ity of
de
cade
sIVb type
02000400060008000
10000120001400016000
1980
1982
1984
1986
1988
1990
1992
1994
1996
1998
2000
Years
Biom
ass,t
hs.t
2
7
12
17
The q
uant
ity o
f de
cade
s
Synoptic situations lead to “warm” (Synoptic situations lead to “warm” (AA) and “cold” () and “cold” (BB) ) types of atmospheric processes over thetypes of atmospheric processes over the OkhotskOkhotsk and and
Bering SeasBering Seas
120 130 140 150 160 170 180 190 20030
40
50
60
70
990995
1000
1005
1010
1015
VIо VIb
99099510001005
1010
1015
L
НA.
The “cold” typesThe “cold” types
120 130 140 150 160 170 180 190 20030
40
50
60
701015
1015
1010
1010
1005
1005
1000
1000
995
995
1020
1020
1025
1025
1030
1030
1035
1035 IVbVо
Н LB.
VIo and VIb type s
02468
1012
1980
1982
1984
1986
1988
1990
1992
1994
1996
1998
2000
2002
Ye ars
Th
e q
uan
tity
of
dec
ades
VIb VIo
The “warm” typesThe “warm” types
IVb and Vo type s
02468
101214
1980
1982
1984
1986
1988
1990
1992
1994
1996
1998
2000
2002
Ye ars
Th
e q
uan
tity
of
dec
ades
IvbVo
InterannualInterannual dynamics of the abundance of spawningdynamics of the abundance of spawning pollockpollock in thein theOkhotskOkhotsk Sea with 5 years shift on a background of longSea with 5 years shift on a background of long--term term
variability of repeatability of thevariability of repeatability of the IVoIVo type of atmospheric type of atmospheric
processesprocesses
120 130 140 150 160 170 180 190 20030
40
50
60
70
990
9951000 10001005
1005
1010
1010
IVо L
IV type
0
2000
4000
6000
8000
10000
12000
1980
1982
1984
1986
1988
1990
1992
1994
1996
1998
2000
Years
Biom
ass,t
hs,t
2
7
12
The q
uant
ity o
f de
cade
s
InterannualInterannual dynamics of the abundance of spawningdynamics of the abundance of spawning pollockpollock in in Bering Sea with 5 years shift on a background of longBering Sea with 5 years shift on a background of long--term term
variability of repeatability of thevariability of repeatability of the IVbIVb type of atmospheric type of atmospheric processesprocesses
120 130 140 150 160 170 180 190 20030
40
50
60
70
995
995
1000
1000
1005
1005
1010
1010
1015
1015
1020
1020
1025
1025
H
LIVb
IVb type
0200040006000
8000
10000120001400016000
1980
1982
1984
1986
1988
1990
1992
1994
1996
1998
2000
Years
Bio
mas
s, th
s.t
0
5
10
15
The
quan
tity
of
deca
des
InterannualInterannual dynamics of number of a spawningdynamics of number of a spawning pollockpollock in the in the Bering andBering and OkhotskOkhotsk Seas with 5 years shift on a background of Seas with 5 years shift on a background of
longlong--term variability of repeatability of the “warm” types of term variability of repeatability of the “warm” types of
atmospheric processesatmospheric processes
VIo type
0
2000
4000
6000
8000
10000
12000
1980
1982
1984
1986
1988
1990
1992
1994
1996
1998
2000
Years
Bio
mas
s, th
s.t
012345678910
The
quan
tity
of
deca
des
VIb type
02000400060008000
10000120001400016000
1980
1982
1984
1986
1988
1990
1992
1994
1996
1998
2000
Years
Bio
mas
s, th
s.t
0
2
4
6
8
10
12
The
quan
tity
of
deca
des
InterannualInterannual variability ofvariability of macroplanktonmacroplankton biomass in the southwestbiomass in the southwest((АА) ) and Westand West--KamchatkaKamchatka ((BB) ) areas of theareas of the OkhotskOkhotsk Sea on a Sea on a
background of fluctuations of repeatability of thebackground of fluctuations of repeatability of the VIoVIo type of type of
atmospheric circulationatmospheric circulation
AA
BB
050
100150
200250300
1984
1986
1988
1990
1992
1994
1996
1998
Years
Biom
ass,
mg/
m3
0
2
4
6
8
10
The q
uant
ity o
f dec
ades
A macroplankton of southwest areaVI type
020406080
100120
1984
1986
1988
1990
1992
1994
1996
1998
Years
Biom
ass,
mg/
m3
0
2
4
6
8
10
The q
yant
ity o
f dec
ades
A macroplankton of West KamchatkaareaVI type
InterannualInterannual variability of a biomass of various groupings of variability of a biomass of various groupings of plankton (plankton (SagittaSagitta andand CopepodaCopepoda) in the Bering Sea (from) in the Bering Sea (from
ShuntovShuntov,2001) on a background of fluctuation of repeatability of V ,2001) on a background of fluctuation of repeatability of V
type of the atmospheric processestype of the atmospheric processes
120 130 140 150 160 170 180 190 20030
40
50
60
70
990
9951000 10001005
1005
1010
1010
LVb
0
200
400
600
800
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
Years
Bio
mas
s,m
g/m
3
024681012
The
quan
tity
of d
ecad
es
Sagitta Copepoda V type
LongLong--term fluctuations of a biomass of the various groupings term fluctuations of a biomass of the various groupings zooplankton (Euphausia and Amphipoda) in the Bering Sea zooplankton (Euphausia and Amphipoda) in the Bering Sea
(from(from ShuntovShuntov,2001) ,2001) on a background of an interannual course of on a background of an interannual course of
repeatability of III typerepeatability of III type
120 130 140 150 160 170 180 190 20030
40
50
60
70
10001000
1005
1005
1005 10051000 1000
1010
1010
1015
1015
IIIb
L
L
Н
0123456789
1986
1988
1990
1992
1994
1996
1998
Years
The q
untit
y of d
ecad
es
050100150200250300350400450
Biom
ass,m
g/m3
Amphipoda Euphausia III type
1. Rhythmic fluctuations with period 1. Rhythmic fluctuations with period 88--10 years10 years are revealed both in are revealed both in atmosphere and in the ecosystem of Far Eastern Seas, for exampleatmosphere and in the ecosystem of Far Eastern Seas, for example, in the , in the dynamics ofdynamics of pollockpollock in thein the OkhotskOkhotsk and Bering Seas.and Bering Seas.
4. In the Bering Sea, an 4. In the Bering Sea, an abundance of various zooplankton groupsabundance of various zooplankton groups ((SagittaSagitta,,CopepodaCopepoda,, EuphausiaEuphausia,, AmphipodaAmphipoda)) is linked with formation of certain is linked with formation of certain synoptic situations , each of which, causing the synoptic situations , each of which, causing the certain wind carrycertain wind carry, , promotes the favorable or unfavorable hydrological regime in thepromotes the favorable or unfavorable hydrological regime in the areas areas of their habitation.of their habitation.
2. 2. Abundant generationsAbundant generations of theof the pollockpollock in thein the OkhotskOkhotsk and Bering Seas and Bering Seas appear on a background of appear on a background of increaseincrease of repeatability of the "of repeatability of the "moderate moderate coldcold"" IVoIVo and "and "coldcold"" IVbIVb synoptic types accordingly. Both these types synoptic types accordingly. Both these types are characterized by are characterized by stable west windsstable west winds over theover the pollockpollock spawning spawning grounds.grounds.
3. On the contrary, 3. On the contrary, growth ofgrowth of macroplanktonmacroplankton biomassbiomass in the sea ofin the sea of OkhotskOkhotskoccurs on a background of occurs on a background of intensive formationintensive formation of the warm typeof the warm type VIoVIo..
ConclusionsConclusions
Thanks for attentionThanks for attention
Thanks for attentionThanks for attention