Ecological performance differs between range centre and trailing edge populations of a cold-water kelp: implications for estimating net primary productivity
Ecological performance differs between range centre and trailing edge populations of a cold-water kelp: implications for estimating net primary productivity
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冷水海带的分布中心和后缘种群之间的生态表现不同：对估计净初级生产力的影响
DOI：
10.1007/s00227-020-03743-5
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发表时间：
2020
期刊：
影响因子：
2.4
通讯作者：
King N
中科院分区：
文献类型：
--
作者：
King N
海带林面积大，分布广，生产力高。然而，尽管其重要性，可靠的估计净初级生产力（NPP）目前是未知的大多数物种和地区。特别是，如何性能和随后的NPP在整个物种范围内的变化是缺乏。在这里，我们试图解决这个问题，通过研究北方海带，Laminariadigitata，范围中心和后缘地区在英国的增长和性能。在生长高峰期（3月/4月），范围中心的个人最多三倍重，积累的生物量的两倍快，他们的后缘同行。这是不明显的，在减少生长季节（8月/9月），当两个区域内的人口有类似的生物量概况。总的来说，后缘种群的年净初级生产力估计值（181 ± 34 g C m− 2年−1）比分布区中心种群（344 ± 33 g C m− 2年−1）低得多。我们的一阶英国估计总常备库存和NPP为L。digitatasuggest表明，这一物种对沿海碳循环做出了重大贡献。确定这种有机物质的最终命运的进一步工作需要了解海带种群对区域和全球碳循环的总体贡献。尽管如此，我们强调需要在多个种群和纬度进行大规模采样，以准确评估海带物种对沿海碳循环的贡献。
Kelp forests are extensive, widely distributed and highly productive. However, despite their importance, reliable estimates of net primary productivity (NPP) are currently unknown for most species and regions. In particular, how performance and subsequent NPP change throughout a species range is lacking. Here, we attempted to resolve this by examining growth and performance of the boreal kelp,Laminariadigitata, from range centre and trailing edge regions in the United Kingdom. During the peak growth season (March/April), range-centre individuals were up to three times heavier and accumulated biomass twice as fast as their trailing-edge counterparts. This was not apparent during the reduced growth season (August/September), when populations within both regions had similar biomass profiles. In total, annual NPP estimates were considerably lower for trailing-edge (181 ± 34 g C m−2year−1) compared to range-centre (344 ± 33 g C m−2year−1) populations. Our first-order UK estimates of total standing stock and NPP forL. digitatasuggest this species makes a significant contribution to coastal carbon cycling. Further work determining the ultimate fate of this organic matter is needed to understand the overall contribution of kelp populations to regional and global carbon cycles. Nevertheless, we highlight the need for large-scale sampling across multiple populations and latitudes to accurately evaluate kelp species’ contributions to coastal carbon cycling.
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影响因子：
2.5
作者：
Mabin, Christopher J. T.;Gribben, Paul E.;Wright, Jeffrey T.
通讯作者：
Wright, Jeffrey T.
影响因子：
2.5
作者：
Burrows, Michael T.;Harvey, Robin;Robb, Linda
通讯作者：
Robb, Linda
DOI：
10.1016/j.jembe.2018.06.011
发表时间：
2018-09-01
影响因子：
2
作者：
Hereward, Hannah F. R.;Foggo, Andrew;Smale, Dan A.
通讯作者：
Smale, Dan A.
影响因子：
1.3
作者：
Calvyn F. A. Sondak;I. Chung
通讯作者：
I. Chung
深度对糖海带（褐藻门、海带目）夏季生长的影响
影响因子：
1.6
作者：
G. Boden
通讯作者：
G. Boden