Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Stephen S. Crawford"'
Autor:
Stephen S. Crawford, Jeji Varghese
Publikováno v:
Ecological Monographs. 91
Publikováno v:
Environmental Biology of Fishes. 100:1145-1153
Autor:
Robert Hanner, Joanna Y. Wilson, Richard G. Manzon, Gavin Simpson, Stephen S. Crawford, Björn Wissel, Rebecca L. Eberts, Wendylee Stott, Douglas R. Boreham, Christopher M. Somers
Publikováno v:
North American Journal of Fisheries Management. 37:133-148
Lake Whitefish Coregonus clupeaformis is the most commercially valuable species in Lake Huron. The fishery for this species has historically been managed based on 25 management units (17 in Canada, 8 in the USA). However, congruence between the conte
Publikováno v:
Journal of Great Lakes Research. 42:812-818
Ichthyoplankton can be difficult to identify due to a lack of morphological differences among closely-related species. Traditional visual identification of ichthyoplankton requires special knowledge to employ morphological keys. Accurate species-leve
Publikováno v:
Journal of Fish Biology. 88:1460-1474
The purpose of this study was to develop a real-time PCR assay to specifically identify lake whitefish Coregonus clupeaformis in larval fish assemblages based on a 122 bp amplicon from the mitochondrial genome. The efficiency of the reaction, as calc
Autor:
Stephen S. Crawford
Publikováno v:
International Indigenous Policy Journal, Vol 9, Iss 3 (2018)
In 2016, the Government of Canada undertook a review of regulatory processes for federal environmental assessments (EAs) in preparation for replacing the Canadian Environmental Assessment Act. An EA Expert Panel was appointed to review numerous oral
Autor:
Kathleen M. Ryan, Stephen S. Crawford
Publikováno v:
Journal of Great Lakes Research. 40:755-762
Lake whitefish ( Coregonus clupeaformis ) have been widely studied across the Laurentian Great Lakes. However, there are major gaps in our understanding of factors that affect larval distribution and abundance. The goal of this study was to investiga
Autor:
Stephen S. Crawford, William J. Harford, Scott R. Parker, Cavan Harpur, Andrew M. Muir, Nicholas E. Mandrak
Publikováno v:
Journal of Great Lakes Research. 38:381-389
Information about bloater ( Coregonus hoyi ) habitat in Lake Huron was limited to correlations between commercial yield and fishing depth, despite available information from other Great Lakes. We identified seasonal patterns of bloater habitat use in
Publikováno v:
Animal Conservation. 14:151-157
Uncertainty about ecological variables can affect risk designations for species at risk of extinction. This study evaluated the effect of quantitatively characterizing ecological uncertainty on species at risk decision-making, using the Committee on
Publikováno v:
Conservation Biology. 24:1398-1406
Information required to evaluate the extent to which species are at risk of extinction is usually limited and characterized as highly uncertain. In this context, we define information availability as the presence or absence of information used to det