CCPortal

浏览/检索结果: 共22条,第1-10条 帮助

限定条件        
已选(0)清除 条数/页:   排序方式:
State of the Climate in 2017 科技报告
, 2018
作者:  [unavailable]
Adobe PDF(18460Kb)  |  收藏  |  浏览/下载:10/0  |  提交时间:2021/11/24
RRS James Clark Ross, 30 June-8 Aug 2017. The Changing Arctic Ocean Cruise JR16006 科技报告
, 2018
浏览  |  Adobe PDF(10059Kb)  |  收藏  |  浏览/下载:72/8  |  提交时间:2019/11/06
Strengthening Europe鈥檚 capability in biological ocean observations 科技报告
, 2018
Adobe PDF(3183Kb)  |  收藏  |  浏览/下载:62/23  |  提交时间:2019/11/06
Snake fungal disease in North America: U.S. Geological Survey updates 科技报告
报告编号: 70190331, , 2018
作者:  Thompson, Noelle E.;  Lankau, Emily W. elankau@usgs.gov;  Moede Rogall, Gail gmrogall@usgs.gov
Adobe PDF(9800Kb)  |  收藏  |  浏览/下载:33/17  |  提交时间:2019/11/06
Changes in aquatic prey resources in response to estuary restoration in Willapa Bay, southwestern Washington 科技报告
报告编号: 70201600, , 2018
作者:  Woo, Isa iwoo@usgs.gov;  Davis, Melanie J.;  De La Cruz, Susan E. W.
Adobe PDF(8727Kb)  |  收藏  |  浏览/下载:8/5  |  提交时间:2019/11/06
Are changes in lower trophic levels limiting prey-fish biomass and production in Lake Michigan? 科技报告
报告编号: 70199979, , 2018
作者:  Bunnell, David B. dbunnell@usgs.gov;  Carrick, Hunter J.;  Madenjian, Charles P. cmadenjian@usgs.gov;  Rutherford, Edward S.;  Vanderploeg, Henry A.;  Barbiero, Richard P.;  Hinchey-Malloy, Elizabeth;  Pothoven, Steven A.;  Riseng, Catherine M.;  Claramunt, Randall M.;  Bootsma, Harvey A.;  Elgin, Ashley;  Rowe, Mark;  Thomas, Sara;  Turschak, Benjamin A.;  Czesny, Sergiusz J.;  Pangle, Kevin;  Warner, David M. dmwarner@usgs.gov
Adobe PDF(2771Kb)  |  收藏  |  浏览/下载:94/44  |  提交时间:2019/11/06
Understanding the influence of nutrients on stream ecosystems in agricultural landscapes 科技报告
报告编号: 70191220, 页数: 92, 2018
作者:  Munn, Mark D. mdmunn@usgs.gov;  Frey, Jeffrey W. jwfrey@usgs.gov;  Tesoriero, Anthony J. tesorier@usgs.gov;  Black, Robert W. rwblack@usgs.gov;  Duff, John H. jhduff@usgs.gov;  Lee, Kathy E. klee@usgs.gov;  Maret, Terry R. trmaret@usgs.gov;  Mebane, Christopher A. cmebane@usgs.gov;  Waite, Ian R. iwaite@usgs.gov;  Zelt, Ronald B. rbzelt@usgs.gov
Adobe PDF(18305Kb)  |  收藏  |  浏览/下载:44/11  |  提交时间:2019/11/06
2017 National Park visitor spending effects : Economic contributions to local communities, states, and the Nation 科技报告
报告编号: 70197532, , 2018
作者:  Cullinane Thomas, Catherine M. ccullinanethomas@usgs.gov;  Koontz, Lynne koontzl@usgs.gov;  Cornachione, Egan
Adobe PDF(2190Kb)  |  收藏  |  浏览/下载:30/8  |  提交时间:2019/11/06
Mercury methylation and bioaccumulation in Sinclair Inlet, Kitsap County, Washington 科技报告
报告编号: 70196724, , 2018
作者:  Paulson, A.J. apaulson@usgs.gov;  Marvin-DiPasquale, M.C. mmarvin@usgs.gov;  Moran, P.W. pwmoran@usgs.gov;  DeWild, J.F. jfdewild@usgs.gov;  Stewart, A.R. arstewar@usgs.gov;  Toft, J.;  Agee, J.L. jlagee@usgs.gov;  Kakouros, E. kakouros@usgs.gov;  Kieu, Le H. lkieu@usgs.gov;  Carter, B.;  Sheibley, R.W. sheibley@usgs.gov;  Cordell, J. jonnie.cordell@bia.gov;  Krabbenhoft, David P. dpkrabbe@usgs.gov
Adobe PDF(7456Kb)  |  收藏  |  浏览/下载:50/18  |  提交时间:2019/11/06
Status of selenium in south San Francisco Bay—A basis for modeling potential guidelines to meet National tissue criteria for fish and a proposed wildlife criterion for birds 科技报告
报告编号: 70197967, 页数: 84, 2018
作者:  Luoma, Samuel N.;  Presser, Theresa S. tpresser@usgs.gov
Adobe PDF(4736Kb)  |  收藏  |  浏览/下载:30/23  |  提交时间:2019/11/06