. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. LIMPET RESIGNATION T \ I Main in iiiii'niter unit midsummer res pi ration rates at 10° and 20° C and 100 per cent oxygen saturation. Wintei January-March Summer June-AugusI Average i r-;pii,uion rate in /illlv nig hr Range Qio Average respiration rate in /ilO->/mg hr Range Qio 20°C FH-L 10°C 20°C CA N K)°C if. -f *•- 30 20°C ECF 10°C 0.
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. LIMPET RESIGNATION T \ I Main in iiiii'niter unit midsummer res pi ration rates at 10° and 20° C and 100 per cent oxygen saturation. Wintei January-March Summer June-AugusI Average i r-;pii,uion rate in /illlv nig hr Range Qio Average respiration rate in /ilO->/mg hr Range Qio 20°C FH-L 10°C 20°C CA N K)°C if. -f *•- 30 20°C ECF 10°C 0. no subsequent decrease in respiratory rate (from these increased rates) for 189 minutes after return to oxygen saturated water. A similar group of ECF limpets collected May 24, 1971, and exposed to oxygen depleted water (zero O2 tension) for 37 hours showed no detectable short-term change in these increased rates after return to fully saturated wrater. Both groups of limpets showed just over a 100 per cent increase in respirator}' rate immediately after treatment at all C>2 tensions when compared to normal rates before low oxygen stress (Fig. 2). The ECF limpets collected April 20, 1971 had respiration rates with decreasing oxygen tension re- measured 16 hours and 135 hours after return from low oxygen stress treatment to fully saturated water (Fig. 2A). This figure shows that the limpets appear to maintain their increased rates of respiration for more than 135 hours after they had been returned to water at 100 per cent saturation. The ECF limpet group collected May 24, 1971 was expected for a second 43 hour period to oxygen depleted water (zero oxygen tension), following the first 37 hour low oxygen treatment and respiration measurement. Figure 28 shows that this second treatment increased respiration at all oxygen tensions to more than 4 times the pretreatment rates, and to twice that of the rates recorded after the first treatme
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
