The Reproduction of a Key Arctic Copepod in Low-pH Seawater
Weydmann, A., Soreide, J.E., Kwasniewski, S. and Widdicombe,S. 2012. Influence of CO2-induced acidification on the reproduction of a key Arctic copepod Calanus glacialis. Journal of Experimental Marine Biology and Ecology 428: 39-42.
The four researchers report that "CO2-induced seawater acidification had no significant effect on C. glacialis egg production," and that a reduction in pH to 6.9 only delayed hatching at what they called that "extreme level of pH." They also state there was no significant effect "on the survival of adult females," which observation, in their words, "is in agreement with previous studies on other copepod species," citing Mayor et al. (2007) and Kurihara and Ishimatsu (2008).
In reference to their several findings, Weydmann et al. state that their results are "in agreement with previous studies on other copepod species and would indicate that copepods, as a group, may be well equipped to deal with the chemical changes associated with ocean acidification."
Blachowiak-Samolyk, K., Soreide, J.E., Kwasniewski, S., Sundfjord, A., Hop, H., Falk-Petersen, S. and Hegseth, E.N. 2008. Hydrodynamic control of mesozooplankton abundance and biomass in northern Svalbard waters (79-81 degrees N). Deep Sea Research Part 2, Topical Studies in Oceanography 55: 2210-2224.
Conover, R.J. 1988. Comparative life histories in the genera Calanus and Neocalanus in high latitudes of the northern hemisphere. Hydrobiologia 167/168: 127-142.
Falk-Petersen, S., Dahl, T.M., Scott, C.L., Sargent, J.R., Gulliksen, B., Kwasniewski, S., Hop, H. and Millar, R.M. 2002. Lipid biomarkers and trophic linkages between ctenophores and copepods in Svalbard waters. Marine Ecology Progress Series 227: 187-194.
Falk-Petersen, S., Haug, T., Nilssen, K.T., Wold, A. and Dahl, T.M. 2004. Lipids and trophic linkages in harp seal (Phoca groenlandica) from the Eastern Barents Sea. Polar Research 23: 43-50.
Fortier, M., Fortier, L., Hattori, H., Saito, H. and Legendre, L. 2001. Visual predators and the diel vertical migration of copepods under Arctic sea ice during the midnight sun. Journal of Plankton Research 23: 1263-1278.
Hirche, H.J. and Mumm, N. 1992. Distribution of dominant copepods in the Nansen Basin, Arctic Ocean, in summer. Deep Sea Research 39: 485-505.
Karnovsky, N.J., Weslawski, J.M., Kwasniewski, S., Walkusz, W. and Beszczynska-Moeller, A. 2003. Foraging behavior of little auks in heterogeneous environment. Marine Ecology Progress Series 253: 289-303.
Kurihara, H. and Ishimatsu, A. 2008. Effects of high CO2 seawater on the copepod Acartic tsuensis. Marine Pollution Bulletin 56: 1086-1090.
Mayor, D.J., Matthews, C., Cook, K., Zuur, A.F. and Hay, S. 2007. CO2-induced acidification affects hatching success in Calanus finmarchicus. Marine Ecology Progress Series 350: 91-97.
Mumm, N., Auel, H., Hanssen, H., Hagen, W., Richter, C. and Hirche, H.J. 1998. Breaking the ice: large-scale distribution of mesozooplankton after a decade of Arctic and trans-polar cruises. Polar Biology 20: 189-197.
Soreide, J., Falk-Petersen, S., Nost, H.E., Hop, H., Carroll, M.L., Hobson, K. and Blachowiak-Samolyk, K. 2008. Seasonal feeding strategies of Calanus in the high-Arctic Svalbard region. Deep Sea Research Part II 55: 2225-2244.
Tande, K.S. 1991. Calanus in North Norwegian fjords and in the Barents Sea. Polar Research 10: 389-407.
Weslawski, J.M., Koszteyn, J., Kwasniewski, S., Stempniewicz, L. and Malinga, M. 1999. Summer food resources of the little auk, Alle alle (L.) in the European Arctic seas. Polish Polar Research 20: 387-403.
Wojczulanis,K., Jakubas, D., Walkusz, W. and Wennerberg, L. 2006. Differences in food delivered to chicks by males and females of Litle Auks (Alle alle) on south Spitsbergen. Journal of Ornithology 147: 543-548.