Response to Waldbusser et al. (2016): “Calcium carbonate saturation state: on myths and this or that stories”
Response to Waldbusser et al. (2016): “Calcium carbonate saturation state: on myths and this or that stories”
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对 Waldbusser 等人 (2016) 的回应：“碳酸钙饱和状态：关于神话和这个或那个故事”
DOI：
10.1093/icesjms/fsv224
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发表时间：
2016
影响因子：
3.3
通讯作者：
P. Jokiel
中科院分区：
文献类型：
--
作者：
Tyler J. Cyronak;K. Schulz;P. Jokiel
目前，几乎任何以“钙化”和“海洋酸化”为关键词进行搜索的文章都会不可避免地提出钙化与大量海水碳酸盐饱和状态(V)之间的联系，作为这项研究的理由。因此，从生理角度来看，在许多海洋生物中，存在通过海水碳酸氢盐(HCO32)和质子(H+)浓度而不是V来控制钙化的机制，这似乎是及时的。虽然我们同意Waldbusser等人(2016)的观点，即存在大量的海洋钙化剂能够在钙化部位内部调节碳酸盐化学，但除非另有说明，否则似乎足以假定对OA的类似潜在生理反应。我们不一定像Waldbus ser等人(2016)所建议的那样将钙化的V敏感性解释为底物限制，我们只是质疑最初将大量海水V作为钙化的驱动力的机制。Waldbus ser等人(2016)正确地注意到海水V与[HCO32]与[H+]之比的协变性。最近，Bach(2015)证明了碳酸盐体系方程的重新排列导致了V与[HCO32]/[H+]之间不可避免的比例关系。由于这一比例，当温度、盐度和压力不变时，钙化率总是与[HCO3 2]/[H+]相关，就像它们与[CO3 22]或V的相关性一样(图1)。因此，以前报道的与散装海水[CO3 22]或V的良好相关性[Waldbus ser等人(2016)给出的例子]同样可以解释为[HCO32]和[H+]的影响，这两个参数在生理上更有意义的碳酸盐体系参数。
Currently, almost any article searched with the keywords “calcification” and “ocean acidification”(OA) will inevitably bring up a link between calcification and bulk seawater carbonate saturation state (V) as a justification for the study. Therefore, it seems timely to highlight that from a physiological point of view, there are mechanisms that invoke control of calcification by seawater bicarbonate (HCO3 2) and proton (H+) concentrations rather than V in many marine organisms. While we agree with Waldbusser et al.(2016) that there is a vast diversity of marine calcifiers able to regulate carbonate chemistry internally at the site of calcification, it seems adequate to assume a similar underlying physiological response to OA unless shown otherwise.We do not necessarily interpret the seeming V sensitivity of calcification as substrate limitation, as suggested by Waldbusser et al.(2016), we simply question the mechanisms that would invoke bulk seawater V as a driving force of calcification in the first place. Waldbusser et al.(2016) rightfully note the co-variability of seawater V with the ratio of [HCO3 2] to [H+]. Recently, Bach (2015) demonstrated that a rearrangement of carbonate system equations results in an inevitable proportionality between V and the ratio of [HCO3 2] to [H+]. Owing to this proportionality, calcification rates will always correlate as well with [HCO3 2]/[H+] as they do with [CO3 22] orVwhen temperature, salinity, and pressure are constant (Figure 1). Hence, the good correlations with bulk seawater [CO3 22] or V that have previously been reported [examples given in Waldbusser et al.(2016)] can equally be interpreted as the influence of [HCO3 2] and [H+], which are physiologically more meaningful carbonate system parameters.
影响因子：
4.9
作者：
Thomsen, J.;Gutowska, M. A.;Melzner, F.
通讯作者：
Melzner, F.