全部文献期刊学位论文会议报纸专利标准年鉴图书|学者科研项目
中外文文献  中文文献  外文文献
作者:Yazdan Keivany , Joseph S. Nelson
来源:[J].Behaviour, 2004, Vol.141 (11), pp.1485 -1497Brill Press
摘要:Sticklebacks are widely used in comparative biology, but despite past systematic studies, questions of intrarelationships remain. We examined seven nominal species of Pungitius (P. pungitius, P. occidentalis, P. sinensis, P. tymensis, P. platygaster, P. laevis and P. hellenicus) ...
作者:Joseph S. Nelson , Margaret A. Harris
来源:[J].Environmental Biology of Fishes(IF 1.305), 1987, Vol.18 (3), pp.173-181Springer
摘要:Synopsis(#br)Threespine stickleback, Gasterosteus aculeatus , are thought to have been introduced into Hasse Lake, Alberta, where they were discovered in 1980. The population has grown in numbers since 1980 and by 1981 was more abundant than the native brook stickleback, Cul...
作者:Keith L. Jackson , Joseph S. Nelson
来源:[J].New Zealand Journal of Marine and Freshwater Research(IF 0.882), 2000, Vol.34 (4), pp.719-726Taylor & Francis
摘要:Abstract(#br)A second species of Neophrynichthys is described from 20 specimens collected from the Campbell Plateau, south of South Island, New Zealand. It differs from its sole congener, N. latus , in having 25–26 pectoral rays (versus 22–24), cirri on head more than twice ...
作者:Joseph S. Nelson , Steven P. Platania ...
来源:[J].Fisheries(IF 2.878), 2008, Vol.33 (8), pp.372-407Taylor & Francis
摘要:Abstract(#br)This is the third compilation of imperiled (i.e., endangered, threatened, vulnerable) plus extinct freshwater and diadromous fishes of North America prepared by the American Fisheries Society'S Endangered Species Committee. Since the last revision in 1989, imperilmen...
作者:Joseph S. Nelson , Paul J. B. Hart ...
来源:[J].Reviews in Fish Biology and Fisheries(IF 2.27), 1995, Vol.5 (4), pp.461-473Springer
作者:Joseph S. Nelson
来源:[J].Reviews in Fish Biology and Fisheries(IF 2.27), 1999, Vol.9 (4), pp.277-280CrossRef
作者:Joseph S. Nelson , Melanie L. J. Stiassny ...
来源:[J].Copeia(IF 0.644), 1997, Vol.1997 (3), pp.647CrossRef

我们正在为您处理中,这可能需要一些时间,请稍等。

资源合作:cnki.scholar@cnki.net, +86-10-82896619   意见反馈:scholar@cnki.net

×