264
S. M. HAQ, J. Au KHAN, and S. CHUGTAI:
the Swatch where oceanic conditions dominated, all other species were present except
Temora turbinata. This species was mostly confined to the shelf and in small numbers to
areas where oceanic influence predominated. Among oceanic species Pleuormamma indica
and Euchaeta wolfendeni were present in considerable numbers in various sectors.
Acrocalanus
longicornis 2
:~
1
1
1
1
1
I
1
... .. . . .. .. .... .... ... .. 0 I-L-"---"-'t-.J.. 8
-¥: =I.......II......II.....y: L. . .
7 ...J
.~~~~~~~~:~ ..... ~ L . . . n - ' - . . . . L D - - ' t ' ! D - - " ' = = u . i o - ' - _ - - - ' - - - 4 - ~
Canthocalanus2
sp.
·························0
Eucalanus
pileatus
Clausocalanus1
arcuicornis
·········· ·· ···· ·· ·······0
Eucalanus
1
:
'R
. . _ . ~. r~_s.~~.s. . . . . . 0 Do oDiril il?l
Acrocalanus 2 n: i :
gracilis
:
i
:
.... ........... ........ OI-_...JL......JIn=+'---::::::l'I==-=~=~-t:=
t.
: c;)i I,;J~ : ~
Pleuromamma
I
I
1
I
I
1
indica
2
I
I
I
I
I
I
: 6:
: 6
NO\I 1964 IMarch, March 1967 I Del.
.
1 68
1962
Southern Shelf i Western Shelf
1
I
I
1
1
I
1
1
I
' I
I
11-, ::
i
: :
1
O 0
:001=000: r-1
I
I
,
2
:n : :
o
O! Dl=o=o! 0
'
I
1
2
:
I
:
I n '
1
o =0=1= 1
io
1
1
ril
l
:
I
I
o : i
o
: I
1
1
I
I
I
2
2
o
I
I
o
I
I
,.......,
'Mcrch'
, Oct
NO\I.1964 ' 1968 I March 1967 11962
Southern Shelf
Oithona
plumifera
Paracalanus
aculeatus
Corycaeus
flaccus
Acartia
amboensis
Euchaeta
concinna
Eucalanus
subtenuis
Oncea
conifera
Euchaeta
wolfendeni
Fig. 9. Abundance of principal species of planktonic copepods in different ecological sectors covered
by cruises I - IV along the coast of Pakistan. Numbers represent averages per m 2
Observations made in March near the continental margin and the slope water, showed
that the epiplanktonic copepods dominated only at stations 62/1 to 3, whereas at all
other stations the oceanic species formed the bulk of the copepods. Among the epiplanktonic species of this sector, the most abundant were Acrocalanus longicornis,
Eucalanus pileatus, E. crassus, E. subtenuis and Canthocalanus pauper. All these species
tend to diminish in number in the slope water region. Among the oceanic species, Pleuromamma indica, Euchaeta wolfendeni and E. marina formed the bulk of the copepods.
In March 1967 when copepods were few in the shelf and most of the slope water region,
Temora turbinata and Eucalanus subcrassus formed the bulk of the former area while
S. M. HAQ, J. Au KHAN, and S. CHUGTAI:
the Swatch where oceanic conditions dominated, all other species were present except
Temora turbinata. This species was mostly confined to the shelf and in small numbers to
areas where oceanic influence predominated. Among oceanic species Pleuormamma indica
and Euchaeta wolfendeni were present in considerable numbers in various sectors.
Acrocalanus
longicornis 2
:~
1
1
1
1
1
I
1
... .. . . .. .. .... .... ... .. 0 I-L-"---"-'t-.J.. 8
-¥: =I.......II......II.....y: L. . .
7 ...J
.~~~~~~~~:~ ..... ~ L . . . n - ' - . . . . L D - - ' t ' ! D - - " ' = = u . i o - ' - _ - - - ' - - - 4 - ~
Canthocalanus2
sp.
·························0
Eucalanus
pileatus
Clausocalanus1
arcuicornis
·········· ·· ···· ·· ·······0
Eucalanus
1
:
'R
. . _ . ~. r~_s.~~.s. . . . . . 0 Do oDiril il?l
Acrocalanus 2 n: i :
gracilis
:
i
:
.... ........... ........ OI-_...JL......JIn=+'---::::::l'I==-=~=~-t:=
t.
: c;)i I,;J~ : ~
Pleuromamma
I
I
1
I
I
1
indica
2
I
I
I
I
I
I
: 6:
: 6
NO\I 1964 IMarch, March 1967 I Del.
.
1 68
1962
Southern Shelf i Western Shelf
1
I
I
1
1
I
1
1
I
' I
I
11-, ::
i
: :
1
O 0
:001=000: r-1
I
I
,
2
:n : :
o
O! Dl=o=o! 0
'
I
1
2
:
I
:
I n '
1
o =0=1= 1
io
1
1
ril
l
:
I
I
o : i
o
: I
1
1
I
I
I
2
2
o
I
I
o
I
I
,.......,
'Mcrch'
, Oct
NO\I.1964 ' 1968 I March 1967 11962
Southern Shelf
Oithona
plumifera
Paracalanus
aculeatus
Corycaeus
flaccus
Acartia
amboensis
Euchaeta
concinna
Eucalanus
subtenuis
Oncea
conifera
Euchaeta
wolfendeni
Fig. 9. Abundance of principal species of planktonic copepods in different ecological sectors covered
by cruises I - IV along the coast of Pakistan. Numbers represent averages per m 2
Observations made in March near the continental margin and the slope water, showed
that the epiplanktonic copepods dominated only at stations 62/1 to 3, whereas at all
other stations the oceanic species formed the bulk of the copepods. Among the epiplanktonic species of this sector, the most abundant were Acrocalanus longicornis,
Eucalanus pileatus, E. crassus, E. subtenuis and Canthocalanus pauper. All these species
tend to diminish in number in the slope water region. Among the oceanic species, Pleuromamma indica, Euchaeta wolfendeni and E. marina formed the bulk of the copepods.
In March 1967 when copepods were few in the shelf and most of the slope water region,
Temora turbinata and Eucalanus subcrassus formed the bulk of the former area while