geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Projected near-future levels of temperature and pCO2 reduce coral fertilization success


, : Projected near-future levels of temperature and pCO2 reduce coral fertilization success. Plos One 8(2): E56468-E56468

Increases in atmospheric carbon dioxide (pCO2) are projected to contribute to a 1.1-6.4°C rise in global average surface temperatures and a 0.14-0.35 reduction in the average pH of the global surface ocean by 2100. If realized, these changes are expected to have negative consequences for reef-building corals including increased frequency and severity of coral bleaching and reduced rates of calcification and reef accretion. Much less is known regarding the independent and combined effects of temperature and pCO2 on critical early life history processes such as fertilization. Here we show that increases in temperature (+3°C) and pCO2 (+400 µatm) projected for this century negatively impact fertilization success of a common Indo-Pacific coral species, Acropora tenuis. While maximum fertilization did not differ among treatments, the sperm concentration required to obtain 50% of maximum fertilization increased 6- to 8- fold with the addition of a single factor (temperature or CO2) and nearly 50- fold when both factors interact. Our results indicate that near-future changes in temperature and pCO2 narrow the range of sperm concentrations that are capable of yielding high fertilization success in A. tenuis. Increased sperm limitation, in conjunction with adult population decline, may have severe consequences for coral reproductive success. Impaired sexual reproduction will further challenge corals by inhibiting population recovery and adaptation potential.

US$19.90

PMID: 23457572

DOI: 10.1371/journal.pone.0056468


Other references

Ishizaka, H.; Uematsu, J., 1995: Interspecific hybrids of Cyclamen persicum Mill. and C. purpurascens Mill. produced by ovule culture. Interspecific crosses were made to introduce the flower scent of C. purpurascens into C. persicum cultivars and ovule culture was used to rescue the abortive hybrid embryos. Cultivars of C. persicum diploid (CPD, 2n = 2x = 48) and C. persicum tetr...

Belyantseva, I.A.; Labay, V.; Boger, E.T.; Griffith, A.J.; Friedman, T.B., 2003: Stereocilia: the long and the short of it. Mutations in whirlin, a putative PDZ scaffold protein, have recently been shown to cause deafness and short cochlear hair cell stereocilia in whirler mice and recessive deafness (DFNB31) in humans. Through its PDZ domains, whirlin might organize a...

Anonymous, 1996: NeXstar Pharmaceuticals lauches DaunoXome. NeXstar Pharmaceuticals has begun marketing DaunoXome (daunorubicin citrate liposome injection), which maximizes the selectivity of daunorubicin for solid tumors. Phase III trials showed the drug to have efficacy comparable to a three-drug regimen...

Finlay, B., 1971: The torsional characteristics of human skin in vivo. Biomedical Engineering 6(12): 567-573

Gerber, G.B.; Koszalka, T.R.; Gerber, G.; Miller, L.L., 1964: Creatine Synthesis In Perfused Liver Of Vitamin E-Deficient Rats. The synthesis of creatine from glycocyamine was studied in the perfused livers of rats fed a stock diet, a diet deficient in vitamin E and a diet deficient in vitamin E but supplemented with [alpha]-tocopheryl acetate. No significant differences w...

Lindhe, A.; Rosén, L.; Norberg, T.; Bergstedt, O.; Pettersson, T.J.R., 2011: Cost-effectiveness analysis of risk-reduction measures to reach water safety targets. Identifying the most suitable risk-reduction measures in drinking water systems requires a thorough analysis of possible alternatives. In addition to the effects on the risk level, also the economic aspects of the risk-reduction alternatives are c...

Chen, Y-Shiun.; Hung, Y-Ching.; Liau, I.; Huang, G.Steve., 2009: Assessment of the In Vivo Toxicity of Gold Nanoparticles. The environmental impact of nanoparticles is evident; however, their toxicity due to their nanosize is rarely discussed. Gold nanoparticles (GNPs) may serve as a promising model to address the size-dependent biological response to nanoparticles be...

Darade, N.B.; Chavan, J.K.; Kachare, D.P., 1999: Alkali treatment in the milling of discoloured sorghum. Soaking of discoloured or black sorghum grains in 4% NaOH (1:1 w/v) at 100 degrees C for 5 min followed by washing under water, neutralization of residual alkali with 1% acetic acid, rinsing with water and drying at 60 degrees C resulted in comple...

Morris J.F.; Temple W.P., 1976: Single breath carbon di oxide expiratory curve value as a measurement of closing volume. American Review of Respiratory Disease 113(4): 222

Gros, R.; Ding, Q.; Chorazyczewski, J.; Andrews, J.; Pickering, J.Geoffrey.; Hegele, R.A.; Feldman, R.D., 2005: The impact of blunted beta-adrenergic responsiveness on growth regulatory pathways in hypertension. The effects of vasodilator hormones acting through receptors linked to adenylyl cyclase are impaired in the hypertensive state. This has been ascribed to impaired receptor-G protein coupling. However, these receptors also act via effectors not lin...