Long-term increase in Karenia brevis abundance along the Southwest Florida Coast
Long-term increase in Karenia brevis abundance along the Southwest Florida Coast
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DOI：
10.1016/j.hal.2006.08.005
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发表时间：
2007-02-01
期刊：
影响因子：
6.6
通讯作者：
Compton, Angela
中科院分区：
文献类型：
--
作者：
Brand, Larry E.;Compton, Angela
收集的数据沿着西南海岸的佛罗里达之间的坦帕湾和萨尼贝尔岛的丰富的有毒甲藻Karenia brevis从1954年至2002年的空间和时间模式进行了检查。K.据发现，在海岸线5公里以内，短尾轮虫的丰度大约是离岸20-30公里以内的20倍。总的来说，K。1994-2002年，短尾丝虫的数量比1954-1963年增加了约13-18倍。1954-1963年，K.短缩主要发生在秋季。在1994-2002年期间，不仅秋季，而且冬季和春季的月份都比较丰富。据推测，在生态系统中更大的养分有效性是最有可能的原因，这种增加钾。brevis的生物量，以及在过去的半个世纪在南佛罗里达人口及其活动的大量增加是一个主要因素。(c)2006 Elsevier B. V.保留所有权利。
Data collected along the southwest coast of Florida between Tampa Bay and Sanibel Island on the abundance of the toxic dinoflagellate Karenia brevis from 1954 to 2002 were examined for spatial and temporal patterns. K. brevis was found to be approximately 20-fold more abundant within 5 km of the shoreline than 20-30 km offshore. Overall, K. brevis was approximately 13-18-fold more abundant in 1994-2002 than in 1954-1963. In 1954-1963, K. brevis occurred primarily in the fall months. In 1994-2002, it was more abundant not only in the fall, but also in the winter and spring months. It is hypothesized that greater nutrient availability in the ecosystem is the most likely cause of this increase in K. brevis biomass, and the large increase in the human population and its activities in South Florida over the past half century is a major factor. (c) 2006 Elsevier B.V. All rights reserved.