272
THE BIOLOGY O F EUPHAUSIIDS
TABLE XXIII. OXYGEN CONSUMPTION OF EUPHAUSIIDS
Species
Temperature p? 02/mg wet
range ("C)
weightlh
Thysanopoda monacantha
T . tricuspidata
T . obtu.si,frons
Meganyctiphanes norvegica
Euphausia americana
E. recurva
E. superba
E. paeijca
E. hemigibba
Thysanoessa raschii
Nematoscelis megalops
Unidentified euphausiids
10
0.18
20
0.40
25
0.70
10
0.15
15
0.29
20
0-52
10
0.42
15
0.65
20
0.97
8-10
0.08-0.31
5
0.07
10
0.19
15
0.43
25
0.90
15
0.40
0-15
0-OPO.24
10
0.17-0.30
10
0.20-0*30
10
0.21
20
0.55
25
1.00
8-10
0.12-0'47
4-10
0.1 1-0.14
5
0.13-0'26
Authority
Teal and Carey (1967b)
Teal and Carey (1967b)
Teal and Carey (1967b)
Teal and Carey (1967b)
Teal and Carey (1967b)
Teal and Carey (1967b)
Teal and Carey (196713)
Teal and Carey (196713)
Teal and Carey (1967b)
Mauchline (unpublished)
Teal and Carey (196713)
Teal and Carey (196713)
Teal and Carey (1967b)
Teal and Carey (1967b)
Teal and Carey (1967b)
McWhinnie and Marcinialr
Lasker (1960)
Small and Hebard (1967)
Teal and Carey (1967b)
Teal and Carey (1967b)
Teal and Carey (1967b)
Mauchline (unpublished)
Raymont and Conover
Conover (1960)
(1964)
(1961)
ments (Table XXIII and Fig. 105). He states that the euphausiids have
a QlO of approximately 2 between 5" and 12°C and suggests that the
migration upwards into warmer water layers will increase their basal
carbon requirements. Teal and Carey (1967b) found that the QlO's
of several species of euphausiids (Table XXIII) varied from 2 to 3.5.
Paranjape (1967) found that E . paci$ca had a QlO of 2.21 between 5"
and 10°C and this increased to 2.55 between 10" and 15°C. Pearcy
and Small (1968) found that the oxygen consumption of E . pacijica
at 10°C was 1.61 & 0.63 pl oxygenlmg dry wtlhr while that
of Thysanoessa spinifera was 2.21 f 0.69. The respiratory rates of
a few other species of euphausiids have been examined (Table
XXIII) but much remains to be done in this field. The most
detailed experimental studies of the respiration of euphausiids are
those of McWhinnie and Marciniak (1964) on E . superba and Teal
and Carey (1967b) on several species. The differences in oxygen
THE BIOLOGY O F EUPHAUSIIDS
TABLE XXIII. OXYGEN CONSUMPTION OF EUPHAUSIIDS
Species
Temperature p? 02/mg wet
range ("C)
weightlh
Thysanopoda monacantha
T . tricuspidata
T . obtu.si,frons
Meganyctiphanes norvegica
Euphausia americana
E. recurva
E. superba
E. paeijca
E. hemigibba
Thysanoessa raschii
Nematoscelis megalops
Unidentified euphausiids
10
0.18
20
0.40
25
0.70
10
0.15
15
0.29
20
0-52
10
0.42
15
0.65
20
0.97
8-10
0.08-0.31
5
0.07
10
0.19
15
0.43
25
0.90
15
0.40
0-15
0-OPO.24
10
0.17-0.30
10
0.20-0*30
10
0.21
20
0.55
25
1.00
8-10
0.12-0'47
4-10
0.1 1-0.14
5
0.13-0'26
Authority
Teal and Carey (1967b)
Teal and Carey (1967b)
Teal and Carey (1967b)
Teal and Carey (1967b)
Teal and Carey (1967b)
Teal and Carey (1967b)
Teal and Carey (196713)
Teal and Carey (196713)
Teal and Carey (1967b)
Mauchline (unpublished)
Teal and Carey (196713)
Teal and Carey (196713)
Teal and Carey (1967b)
Teal and Carey (1967b)
Teal and Carey (1967b)
McWhinnie and Marcinialr
Lasker (1960)
Small and Hebard (1967)
Teal and Carey (1967b)
Teal and Carey (1967b)
Teal and Carey (1967b)
Mauchline (unpublished)
Raymont and Conover
Conover (1960)
(1964)
(1961)
ments (Table XXIII and Fig. 105). He states that the euphausiids have
a QlO of approximately 2 between 5" and 12°C and suggests that the
migration upwards into warmer water layers will increase their basal
carbon requirements. Teal and Carey (1967b) found that the QlO's
of several species of euphausiids (Table XXIII) varied from 2 to 3.5.
Paranjape (1967) found that E . paci$ca had a QlO of 2.21 between 5"
and 10°C and this increased to 2.55 between 10" and 15°C. Pearcy
and Small (1968) found that the oxygen consumption of E . pacijica
at 10°C was 1.61 & 0.63 pl oxygenlmg dry wtlhr while that
of Thysanoessa spinifera was 2.21 f 0.69. The respiratory rates of
a few other species of euphausiids have been examined (Table
XXIII) but much remains to be done in this field. The most
detailed experimental studies of the respiration of euphausiids are
those of McWhinnie and Marciniak (1964) on E . superba and Teal
and Carey (1967b) on several species. The differences in oxygen