亲爱的研友该休息了!由于当前在线用户较少,发布求助请尽量完整地填写文献信息,科研通机器人24小时在线,伴您度过漫漫科研夜!身体可是革命的本钱,早点休息,好梦!

Seasonal Changes in the Protist Communities of Hakodate Bay, Southern Hokkaido, from 2020 to 2022

海湾 原生生物 海洋学 地理 生物 地质学 生物化学 基因
作者
Yusuke Hamao,K Morimoto,Shoko Tatamisashi,Masahide Wakita,Akihide Kasai,Kohei Matsuno
标识
DOI:10.2139/ssrn.4854010
摘要

Hakodate Bay at the southern end of Hokkaido experiences physical and chemical environmental changes in the adjacent Tsugaru Strait. Harmful algal blooms have occurred since 2015. However, information on the relationship between environmental variables and the entire protist community or the mechanisms causing harmful blooms in the Hakodate Bay is lacking. We investigated the seasonal changes in the protist community using weekly field sampling to reveal the relationship between the protist community and environmental variables in the Hakodate Bay. Based on cluster analysis, six groups were identified: Winter, Spring, Late Spring, Summer, Benthic, and Karenia. From the Winter to Spring group, a species transition from low-temperature-adapting Thalassiosira spp. to Chaetoceros spp. was found, which is well described in the subarctic regions. The Summer group comprised high-salinity-tolerant species (the diatom Leptocylindrus danicus and dinoflagellate Prorocentrum spp.) because of high fluctuations in salinity due to precipitation. The other groups (Late Spring, Benthic, and Karenia) randomly filled the spaces between the three groups. The dinoflagellate Scrippsiella spp. was dominant in the Late Spring group because of accumulation by wind-driven currents. Because a strong relationship between benthic species and wind speed was exhibited, the Benthic group comprised benthic diatoms released into the water by mixing. The Karenia group was observed only from late August 2021 to early January 2022, when higher ammonium and lower light conditions (i.e., cloudy conditions) were detected than during the same period in the previous year. Owing to environmental conditions, diatom growth was restricted by low light intensity, whereas that of Karenia mikimotoi increased by taking advantage of the abundant nutrients. Seasonal changes in the protist community of the Hakodate Bay can generally be explained by temperature and nutrients; however, in the short term (1–2 weeks), changes were also influenced by meteorological conditions (solar radiation, wind, and precipitation).

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
www完成签到,获得积分10
1秒前
30秒前
NexusExplorer应助科研通管家采纳,获得10
50秒前
Akitten发布了新的文献求助10
1分钟前
啥时候吃火锅完成签到 ,获得积分0
2分钟前
上官若男应助科研通管家采纳,获得30
2分钟前
斯文败类应助科研通管家采纳,获得10
2分钟前
李爱国应助科研通管家采纳,获得10
2分钟前
科研通AI2S应助科研通管家采纳,获得10
2分钟前
赘婿应助科研通管家采纳,获得10
2分钟前
田様应助精明晓刚采纳,获得10
2分钟前
3分钟前
精明晓刚发布了新的文献求助10
3分钟前
科研通AI2S应助科研通管家采纳,获得10
4分钟前
coolplex完成签到 ,获得积分10
5分钟前
wwe完成签到,获得积分10
5分钟前
貔貅完成签到 ,获得积分10
6分钟前
yindi1991完成签到 ,获得积分10
8分钟前
hgl完成签到,获得积分10
8分钟前
8分钟前
科研通AI2S应助科研通管家采纳,获得10
8分钟前
8分钟前
华仔应助精明晓刚采纳,获得10
9分钟前
9分钟前
9分钟前
精明晓刚发布了新的文献求助10
9分钟前
糖伯虎完成签到 ,获得积分10
10分钟前
在水一方应助科研通管家采纳,获得10
10分钟前
光合作用完成签到,获得积分10
11分钟前
11分钟前
精明晓刚发布了新的文献求助10
11分钟前
精明晓刚完成签到,获得积分10
12分钟前
12分钟前
搜集达人应助kangkang采纳,获得10
12分钟前
英姑应助科研通管家采纳,获得10
12分钟前
kangkang完成签到,获得积分20
13分钟前
13分钟前
刘紫媛发布了新的文献求助10
13分钟前
故意的冰淇淋完成签到 ,获得积分10
13分钟前
刘紫媛完成签到,获得积分20
13分钟前
高分求助中
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3990351
求助须知:如何正确求助?哪些是违规求助? 3532158
关于积分的说明 11256513
捐赠科研通 3271046
什么是DOI,文献DOI怎么找? 1805207
邀请新用户注册赠送积分活动 882302
科研通“疑难数据库(出版商)”最低求助积分说明 809234