Observations of Phytoplankton Community Composition in the Santa Barbara Channel During the Thomas Fire
Observations of Phytoplankton Community Composition in the Santa Barbara Channel During the Thomas Fire
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托马斯火灾期间圣巴巴拉海峡浮游植物群落组成的观测
DOI：
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发表时间：
2020
期刊：
影响因子：
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通讯作者：
Alexis D. Fischer
中科院分区：
文献类型：
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作者：
Sasha J. Kramer;K. Bisson;Alexis D. Fischer
托马斯大火于2017年12月5日点燃，截至2018年1月12日，烧毁了文图拉县和圣巴巴拉县近30万英亩的土地，成为当时加州历史上最大的山火。火灾期间，一股持续的灰烬、烟雾和烟尘蔓延至圣巴巴拉海峡 (SBC) 近海 1,000 公里处。在 2017 年 12 月中旬的一次研究巡航期间，利用 R/V Sally Ride 船上的成像 FlowCytobot (IFCB) 研究了火山灰流入对 SBC 浮游植物群落的影响。收集了超过 100,000 张浮游植物和非生命颗粒的图像，并对每张图像进行了手动分类，从而形成了浮游植物细胞和碎屑颗粒（包括灰烬）的时间序列。将托马斯火灾条件与 SBC 12 月历史每月采样进行比较，发现 2017 年 12 月的海面温度、营养物浓度和浮游植物群落组成 (PCC) 存在显着差异。托马斯火灾期间，甲藻在浮游植物群落中占主导地位（每个样本占浮游植物细胞总生物量的 90%），而硅藻和超微型浮游植物通常在表层海洋 PCC 中占主导地位。 SBC 12 月。虽然这项研究未能证明 PCC 与野火灰浓度之间的相关关系，
The Thomas Fire ignited on December 5, 2017 and burned nearly 300,000 acres of land in Ventura and Santa Barbara counties until January 12, 2018, making it the largest wildfire in California history at the time. During the fire, a persistent plume of ash, smoke, and soot extended up to 1,000 km offshore over the Santa Barbara Channel (SBC). The effect of this ash influx on the SBC phytoplankton community was investigated with an Imaging FlowCytobot (IFCB) onboard R/V Sally Ride during a research cruise in mid-December 2017. Over 100,000 images of phytoplankton and nonliving particles were collected and each image was manually classified, resulting in time series of phytoplankton cells and detrital particles, including ash. Comparing the Thomas Fire conditions to historical monthly sampling in the SBC in December reveals significant differences in sea surface temperature, nutrient concentration, and phytoplankton community composition (PCC) in December 2017. During the Thomas Fire, dinoflagellates dominated the phytoplankton community (comprising up to 90% of the total phytoplankton cell biovolume per sample), while diatoms and picophytoplankton typically dominate surface ocean PCC in the SBC in December. While this study was not able to demonstrate a correlational relationship between PCC and wildfire ash concentration,
卡劳埃亚熔岩助长了北太平洋浮游植物的繁殖
影响因子：
56.9
作者：
Wilson, Samuel T.;Hawco, Nicholas J.;Armbrust, E. Virginia;Barone, Benedetto;Björkman, Karin M.;Boysen, Angela K.;Burgos, Macarena;Burrell, Timothy J.;Casey, John R.;DeLong, Edward F.
通讯作者：
DeLong, Edward F.
加州野火烧毁了科学与艺术之间的界限
影响因子：
2.8
作者：
Bisson, Kelsey;Baetge, Nicholas;Kramer, Sarah;Catlett, Dylan;Girling, Gad;McNair, Heather;Arrington, Eleanor;Hayes, Dustin;Jacobs, Celia;James, Anna
通讯作者：
James, Anna