气候变化领域集成服务门户(CCPortal): Bacterial counts and gel particle parameters at AWI HAUSGARTEN from twelve different water depths at four different sites in 2015

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.883761
	Bacterial counts and gel particle parameters at AWI HAUSGARTEN from twelve different water depths at four different sites in 2015
	Busch; Kathrin; Endres; Sonja; Iversen; Morten Hvitfeldt; Michels; Jan; Nöthig; Eva-Maria; Engel; Anja
发布日期	2017-12-05
数据集类型	dataset
英文简介	Gel particles - a class of abundant transparent organic particles - have increasingly gathered attention in marine research. Field studies on the bacterial colonization of marine gels however are still scarce. So far, most studies on respective particles have focused on the upper ocean, while little is known on their occurrence in the deep sea. Here, we report on the vertical distribution of the two most common gel particle types, which are polysaccharide-containing transparent exopolymer particles (TEP) and proteinaceous Coomassie stainable particles (CSP), as well as numbers of bacteria attached to gel particles throughout the water column, from the surface ocean down to the bathypelagial (< 3,000 m). Our study was conducted in the Arctic Fram Strait during northern hemispheres' summer in 2015. Besides data on the bacterial colonization of the two gel particle types (TEP and CSP), we present bacterial densities on different gel particle size classes according to 12 different sampling depths at four sampling locations. Gel particles were frequently abundant at all sampled depths, and their concentrations decreased from the euphotic zone to the dark ocean. They were colonized by bacteria at all sampled water depths with risen importance at the deepest water layers, where fractions of bacteria attached to gel particles (%) increased within the total bacterial community. Due to the omnipresent bacterial colonization of gel particles at all sampled depths in our study, we presume that euphotic production of this type of organic matter may affect microbial species distribution within the whole water column in the Fram Strait, down to the deep sea. Our results raise the question if changes in the bacterial community composition and functioning on gel particles occur over depth, which may affect microbial respiration and remineralization rates of respective particles in different water layers.
空间范围	Median Latitude: 79.072875 * Median Longitude: 2.716354 * South-bound Latitude: 78.599000 * West-bound Longitude: -2.799170 * North-bound Latitude: 79.821670 * East-bound Longitude: 5.068830
时间范围	2015-07-24T08:05:00 - 2015-08-04T16:47:00
语种	英语
国家	国际
学科大类	气候变化
学科子类	气候变化
文献类型	数据集
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/215282
推荐引用方式 GB/T 7714	Busch,Kathrin,Endres,et al. Bacterial counts and gel particle parameters at AWI HAUSGARTEN from twelve different water depths at four different sites in 2015.2017-12-05.https://doi.org/10.1594/PANGAEA.883761.