지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
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As global warming continues over the coming century, marine organisms will experience a warmer, more acidic ocean. Although these stressors may behave antagonistically or synergistically and will impact organisms both directly (i.e., physiologically) and indirectly (i.e., through altered species interactions), few studies have examined the complexities of these effects in combination. To address these uncertainties, we examined the independent and combined effects of elevated temperature and $pCO_2$ on the physiology of the adult sporophyte stage of giant kelp, Macrocystis pyrifera, and the grazing of the purple sea urchin Strongylocentrotus purpuratus. While elevating $pCO_2$ alone had no effect on M. pyrifera growth or photosynthetic carbon uptake, elevating temperature alone resulted in a significant reduction in both. However, when M. pyrifera was grown under elevated temperature and $pCO_2$ together, growth and photosynthetic carbon uptake significantly increased relative to ambient conditions, suggesting an interaction of these factors on photosynthetic physiology. S. purpuratus held under future conditions generally exhibited reduced growth, and smaller gonads than urchins held under present-day conditions. However, urchins fed kelp grown under future conditions showed higher growth rates, partially ameliorating this effect. Feeding rates were variable over the course of the experiment, with only the first feeding rate experiment showing significantly lower rates for urchins held under future conditions. Together, these data suggest that M. pyrifera may benefit physiologically from a warmer, more acidic (i.e., higher $pCO_2$) ocean while S. purpuratus will likely be impacted negatively. Given that kelp-urchin interactions can be important to kelp forest structure, changes to either of these populations may have serious consequences for many coastal environments.
목차
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참고문헌 (45)
참고문헌 신청
Brennand, H. S. / 2009 / Impact of ocean warming and ocean acidification on larval development and calcification in the sea urchin Tripneustes gratilla / PLoS One 5:e11372
Brown, J. H. / 2004 / Toward a metabolic theory of ecology / Ecology 85:1771~1789
Burrows, M. T. / 2014 / Geographical limits to species-range shifts are suggested by climate velocity / Nature 507:492~495
Caldeira, K. / 2003 / Anthropogenic carbon and ocean pH / Nature 425:365
Catarino, A. I. / 2012 / Acid-base balance and metabolic response of the sea urchin Paracentrotus lividus to different seawater pH and temperatures / Environ. Sci. Pollut. Res. Int 19:2344~2353
Brown, J. H. / 2004 / Toward a metabolic theory of ecology / Ecology 85:1771~1789
Burrows, M. T. / 2014 / Geographical limits to species-range shifts are suggested by climate velocity / Nature 507:492~495
Caldeira, K. / 2003 / Anthropogenic carbon and ocean pH / Nature 425:365
Catarino, A. I. / 2012 / Acid-base balance and metabolic response of the sea urchin Paracentrotus lividus to different seawater pH and temperatures / Environ. Sci. Pollut. Res. Int 19:2344~2353
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