Aerobic performance of two tropical cephalopod species unaltered by prolonged exposure to projected future carbon dioxide levels ...
Abstract [Related Publication]: Squid and many other cephalopods live continuously on the threshold of their environmental oxygen limitations. If the abilities of squid to effectively take up oxygen are negatively affected by projected future carbon dioxide (CO₂) levels in ways similar to those demo...
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| Language: | unknown |
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James Cook University
2018
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| Online Access: | https://dx.doi.org/10.25903/5be228a0df2f3 https://researchdata.jcu.edu.au/published/77382d71313533a54f7ccaf70e2c5ada |
| Summary: | Abstract [Related Publication]: Squid and many other cephalopods live continuously on the threshold of their environmental oxygen limitations. If the abilities of squid to effectively take up oxygen are negatively affected by projected future carbon dioxide (CO₂) levels in ways similar to those demonstrated in some fish and crustaceans, it could affect the success of squid in future oceans. While there is evidence that acute exposure to elevated CO₂ has adverse effects on cephalopod respiratory performance, no studies have investigated this in an adult cephalopod after relatively prolonged exposure to elevated CO₂ or determined any effects on aerobic scope. Here, we tested the effects of prolonged exposure (≥20% of lifespan) to elevated CO₂ levels (~1000µatm) on the routine and maximal oxygen uptake rates, aerobic scope, and recovery time of two tropical cephalopod species, the two-toned pygmy squid, Idiosepius pygmaeus and the bigfin reef squid, Sepioteuthis lessoniana. Neither species exhibited evidence of ... |
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