Record Details
Effects of elevated CO₂ levels on eggs and larvae of a North Pacific flatfish
ScholarsArchive at Oregon State University
| Field | Value |
|---|---|
| Title | Effects of elevated CO₂ levels on eggs and larvae of a North Pacific flatfish |
| Names |
Hurst, Thomas P.
(creator) Laurel, Benjamin J. (creator) Mathis, Jeremy T. (creator) Tobosa, Lauren R. (creator) |
| Date Issued | 2016-03 (iso8601) |
| Note | To the best of our knowledge, one or more authors of this paper were federal employees when contributing to this work. This is the publisher’s final pdf. The published article is published by Oxford University Press on behalf of International Council for the Exploration of the Sea 2015. This work is written by (a) US Government employee(s) and is in the public domain in the US. The published article can be found at: http://icesjms.oxfordjournals.org/ |
| Abstract | The Bering Sea and Gulf of Alaska support a number of commercially important flatfish fisheries. These high latitude ecosystems are predicted to be most immediately impacted by ongoing ocean acidification, but the range of responses by commercial fishery species has yet to be fully explored. In this study, we examined the growth responses of northern rock sole (Lepidopsetta polyxystra) eggs and larvae across a range of CO₂ levels (ambient to 1500 µatm) to evaluate the potential sensitivity to ocean acidification. Laboratory-spawned eggs and larvae were reared at 8°C in a flow-through culture system in which CO₂ levels were maintained via computer-controlled injection of CO₂ into a seawater conditioning tank. Overall, we observed only minor effects of elevated CO₂ level on sizes of northern rock sole larvae. Size at hatch differed among offspring from four different females, but there was no significant effect of CO₂ level on egg survival or size at hatch. In three separate larval growth trials, there was little effect of CO₂ level on growth rates through the first 28 d post-hatch (DPH). However, in the one trial extended to 60 DPH, fish reared at the highest CO₂ level had lower condition factors after 28 DPH, suggesting that larvae undergoing metamorphosis may be more sensitive to environmental hypercapnia than earlier pre-flexion stages. These results suggest that while early life stages of northern rock sole are less sensitive to ocean acidification than previously examined flatfish, they may be more sensitive to elevated CO₂ levels than a previously studied gadid with a similar geographic range. |
| Genre | Article |
| Topic | climate change |
| Identifier | Hurst, T. P., Laurel, B. J., Mathis, J. T., & Tobosa, L. R. (2016). Effects of elevated CO2 levels on eggs and larvae of a North Pacific flatfish. ICES Journal of Marine Science: Journal du Conseil, 73(3), 981-990. doi:10.1093/icesjms/fsv050 |
