发布求助
文献互助 智能选刊 最新文献

Environmental letters最新文献

筛选
英文 中文
On the effect of iron-citrate on the growth of the Flordia red-tide organism, Gymnodinium breve. 柠檬酸铁对Flordia赤潮生物Gymnodinium breve生长的影响。
Environmental letters Pub Date : 1975-01-01 DOI: 10.1080/00139307509437456
Y S Kim, D F Martin
{"title":"On the effect of iron-citrate on the growth of the Flordia red-tide organism, Gymnodinium breve.","authors":"Y S Kim, D F Martin","doi":"10.1080/00139307509437456","DOIUrl":"https://doi.org/10.1080/00139307509437456","url":null,"abstract":"","PeriodicalId":11979,"journal":{"name":"Environmental letters","volume":"9 1","pages":"55-8"},"PeriodicalIF":0.0,"publicationDate":"1975-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/00139307509437456","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12413543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An analytical study of the role of various factors causing red tide outbreaks of trichodesmium as deduced from field and laboratory observation. 从野外和实验室观察推断出引起赤潮爆发的各种因素的分析研究。
Environmental letters Pub Date : 1975-01-01 DOI: 10.1080/00139307509435846
V C Ramamurthy
{"title":"An analytical study of the role of various factors causing red tide outbreaks of trichodesmium as deduced from field and laboratory observation.","authors":"V C Ramamurthy","doi":"10.1080/00139307509435846","DOIUrl":"https://doi.org/10.1080/00139307509435846","url":null,"abstract":"<p><p>The marine blue green alga Trichodesmium sp is found in red-tide outbreaks in sub-tropical areas in the Pacific and Indian Oceans, the Arabian Seas and the equatorial currents of the Gulf of Mexico. Giberellic acid stimulated the growth of Trichodesmium cultures to a greater extent than in the diatom Melosira sulcata. While increasing either the nitrate or phosphate above the normal levels in the culture medium did not greatly stimulate the growth of this organism, Trichodesmium did thrive in nitrogen impoverished waters by nitrogen fixation. The relevance of these findings to the hydrological factors which favour red-tide outbreaks is discussed.</p>","PeriodicalId":11979,"journal":{"name":"Environmental letters","volume":"9 2","pages":"179-93"},"PeriodicalIF":0.0,"publicationDate":"1975-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/00139307509435846","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11999718","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Further remarks on red tide models. 关于红潮模型的进一步说明。
Environmental letters Pub Date : 1975-01-01 DOI: 10.1080/00139307509435849
T Wyatt
{"title":"Further remarks on red tide models.","authors":"T Wyatt","doi":"10.1080/00139307509435849","DOIUrl":"https://doi.org/10.1080/00139307509435849","url":null,"abstract":"<p><p>Vertical migration as an accumulation mechanism in the formation of red tide models is discussed with reference to extant mathematical models. Its relationship to other biological and physical factors such as population density changes, tidal rhythms, nutrient limitation and light intensity is evaluated in terms of its possible causal role in red tides.</p>","PeriodicalId":11979,"journal":{"name":"Environmental letters","volume":"9 2","pages":"217-24"},"PeriodicalIF":0.0,"publicationDate":"1975-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/00139307509435849","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12415865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Development of morphogenetic agents in insect control. 昆虫防治中形态发生剂的研制。
Environmental letters Pub Date : 1975-01-01 DOI: 10.1080/00139307509435837
J J Menn, F M Pallow
{"title":"Development of morphogenetic agents in insect control.","authors":"J J Menn,&nbsp;F M Pallow","doi":"10.1080/00139307509435837","DOIUrl":"https://doi.org/10.1080/00139307509435837","url":null,"abstract":"<p><p>Chemicals which interfere with the growth and development of insects (morphogenetic agents) have been receiving major attention as potential means of selective insect control. Major advances in this field resulted from the identification of Juvenile Hormones -1, -2, and -3, and the discovery that various terpenoid and sesquiterpenoid derivatives were more potent morphogenetic agents than the three known Juvenile Hormones. Several highly active compounds have emerged from these research programs. Their field performance, problems, and prospects in selective insect control are considered here.</p>","PeriodicalId":11979,"journal":{"name":"Environmental letters","volume":"8 1","pages":"71-88"},"PeriodicalIF":0.0,"publicationDate":"1975-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/00139307509435837","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12270742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 10
Charged aerosol particles and air pollution. 带电气溶胶粒子与空气污染。
Environmental letters Pub Date : 1975-01-01 DOI: 10.1080/00139307509435808
J R Brock, W H Marlow
{"title":"Charged aerosol particles and air pollution.","authors":"J R Brock,&nbsp;W H Marlow","doi":"10.1080/00139307509435808","DOIUrl":"https://doi.org/10.1080/00139307509435808","url":null,"abstract":"<p><p>Possible environmental effects and the importance of charged aerosol particles are examined. Some calculations of the evolution of the charge distribution of the atmospheric aerosol are presented. Several possible environmental effects of particle charge are noted including effects on particle coagulation, dry deposition, and deposition in the lung. Finally some problems in aerosol charging are reviewed as they pertain to various technical operations in air pollution control.</p>","PeriodicalId":11979,"journal":{"name":"Environmental letters","volume":"10 1","pages":"53-67"},"PeriodicalIF":0.0,"publicationDate":"1975-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/00139307509435808","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12381180","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 10
Poisonous red tide organisms. 有毒的红潮生物。
Environmental letters Pub Date : 1975-01-01 DOI: 10.1080/00139307509435851
E J Schantz
{"title":"Poisonous red tide organisms.","authors":"E J Schantz","doi":"10.1080/00139307509435851","DOIUrl":"https://doi.org/10.1080/00139307509435851","url":null,"abstract":"","PeriodicalId":11979,"journal":{"name":"Environmental letters","volume":"9 3","pages":"225-37"},"PeriodicalIF":0.0,"publicationDate":"1975-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/00139307509435851","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12413257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
Effects of polluted and non-polluted sediments on the growth of Gonyaulax tamarensis. 污染与未污染沉积物对塔玛菌生长的影响。
Environmental letters Pub Date : 1975-01-01 DOI: 10.1080/00139307509437454
S Hanson, E S Gilfillan
{"title":"Effects of polluted and non-polluted sediments on the growth of Gonyaulax tamarensis.","authors":"S Hanson,&nbsp;E S Gilfillan","doi":"10.1080/00139307509437454","DOIUrl":"https://doi.org/10.1080/00139307509437454","url":null,"abstract":"<p><p>Cultures of Gonyaulax tamarensis were grown on Hastings medium based on 100%, 10%, 1%, 0.1% and 0% (control) of seawater elutrients of bottom sediments. Both \"clean\" and heavily polluted sediments were used. Very low concentrations of polluted elutrients (0.01% v/v) slightly enhanced the growth of Gonvaulax tamarensis; greater concentrations of polluted elutrient depressed growth. Elutrient from \"clean\" sediments did not enhance growth; the depression of growth at any given elutrient concentrate was not as great as that seen with the polluted elutrients.</p>","PeriodicalId":11979,"journal":{"name":"Environmental letters","volume":"9 1","pages":"33-41"},"PeriodicalIF":0.0,"publicationDate":"1975-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/00139307509437454","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12413542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Electron capture gas chromatographic methodology for the quantitation of polychlorinated biphenyls: survey and compromise. 多氯联苯定量的电子捕获气相色谱方法:调查和妥协。
Environmental letters Pub Date : 1975-01-01 DOI: 10.1080/00139307509437423
A S Chau, R C Sampson
{"title":"Electron capture gas chromatographic methodology for the quantitation of polychlorinated biphenyls: survey and compromise.","authors":"A S Chau,&nbsp;R C Sampson","doi":"10.1080/00139307509437423","DOIUrl":"https://doi.org/10.1080/00139307509437423","url":null,"abstract":"<p><p>A uniform approach to quantitation of environmental PCB residues was sought. There exists a requirement for a reasonable compromise between accurate analysis and the ability to handle large numbers of samples. An international survey of electron-capture gas chromatographic methods utilized by laboratories currently analyzing for PCB was conducted from the Canada Centre for Inland Waters. Subsequent evaluation of the methods received has led to adoption of a uniform basic procedure which fulfils the objectives and demonstrates a wide general applicability.</p>","PeriodicalId":11979,"journal":{"name":"Environmental letters","volume":"8 2","pages":"89-101"},"PeriodicalIF":0.0,"publicationDate":"1975-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/00139307509437423","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11992522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 13
Alternate methods of insect control to improve environmental quality. Introduction. 防治昆虫的替代方法，以改善环境质量。介绍。
Environmental letters Pub Date : 1975-01-01 DOI: 10.1080/00139307509435832
M Jacobson
{"title":"Alternate methods of insect control to improve environmental quality. Introduction.","authors":"M Jacobson","doi":"10.1080/00139307509435832","DOIUrl":"https://doi.org/10.1080/00139307509435832","url":null,"abstract":"","PeriodicalId":11979,"journal":{"name":"Environmental letters","volume":"8 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"1975-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/00139307509435832","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12302293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Conformational isomerism in Na3[Co(NO2)6]. Na3[Co(NO2)6]的构象异构。
Environmental letters Pub Date : 1975-01-01 DOI: 10.1080/00139307509437425
D A Johnson, K A Pashman
{"title":"Conformational isomerism in Na3[Co(NO2)6].","authors":"D A Johnson,&nbsp;K A Pashman","doi":"10.1080/00139307509437425","DOIUrl":"https://doi.org/10.1080/00139307509437425","url":null,"abstract":"","PeriodicalId":11979,"journal":{"name":"Environmental letters","volume":"8 2","pages":"117-20"},"PeriodicalIF":0.0,"publicationDate":"1975-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/00139307509437425","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12310756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信