This week the Fisheries Blog describes how carbon dioxide can be used as a barrier for fish movement. This work should be of particular interest to CARS members, as there is hope that this technology could be used to prevent Asian carp, like Silver and Bighead Carp from entering the Great Lakes via the Chicago Sanitary and Shipping Canal. Also, much of the ‘proof of concept’ work and followup studies are being completed by CARS members led by Cory Suski at the University of Illinois.
By Bryan Maitland, Ph.D. Candidate, University of Wyoming In the boreal forest – Canada’s largest biome that in conjunction with its circumpolar counterparts in Russia and Alaska contain the largest collection of lakes, rivers, and wetlands in the world – industrial activities related to the exploration and development of natural resources have created large networks of roads and in turn the construction of hundreds-of-thousands of stream-crossing structures. Due to the highly dynamic and stressful environment in which boreal fishes live (e.g. long cold winter and short growing seasons), they are extremely sensitive to additional anthropogenic stressors. Watersheds in west-central Alberta are an ideal example of this, particularly as they […]
By Vivian M. Nguyen, 2014 PhD Larkin Award Winner From animal movements to knowledge movements: Knowledge mobilization associated with rapid developments in electronic tagging technology and its application I am currently a PhD student in the Biology Department at Carleton University. I wouldn’t say that my research project is a typical one you would find within a biology department; instead, I am pushing the boundaries a bit, and taking on a more social science slant. My research focuses on addressing the gap between science and action, and understanding the movement of knowledge in the context of improved conservation through informed decision making. I am using knowledge produced from electronic tagging […]
“This week, all rivers lead to Rome,” said Mr. Arni Mathiesen, Assistant Director-General, FAO Fisheries and Aquaculture Department, in his opening remarks of the Global conference on Inland Fisheries. Last month in Rome the first global conference on inland fisheries was held . The role of inland fisheries is significant, yet underestimated on a global scale. For the first time scientists, policy makers and international development community gathered together to discuss and address the economic and ecological challenges related to freshwater fisheries around the globe, with a common goal to raise the profile of inland fisheries. The conference was organized into four themes (each with its own panel): Biological Assessment, Economic […]
Description We are seeking a highly motivated post doctoral research associate for the Department of Natural Resources and Environmental Sciences (NRES) at the University of Illinois. The associate will participate in a large, long-term research program quantifying the impacts of elevated aquatic carbon dioxide on aquatic organisms. The current opportunity is for a 3-year project that will quantify the movement, behavior, and spatial ecology of freshwater fishes following exposure to elevated aquatic carbon dioxide. Work will consist of both laboratory simulation experiments, as well as large-scale field studies with fishes in experimental ponds. Work will be conducted in collaboration with a number of federal partners including researchers from the US […]
As part of the NSERC Strategic Grant 2 Ph.D. positions (funded for 4 years) are available under the co-supervision of Dr. Ian Fleming of Memorial University’s Department of Ocean Sciences and Dr. Ian Bradbury of the Department of Fisheries and Oceans. Escapes of farm salmon are both an economic loss and an environmental concern. Their effects on wild salmon populations will be a function of: (1) the presence of escapes and subsequent interbreeding (frequency and magnitude); (2) differences in traits that affect survival, competition and reproduction; (3) ability of natural systems to buffer against escapes through natural selection; and (4) our ability to mitigate impacts. The Ph.D. students will work […]
A recent article in the Canadian Journal of Fisheries and Aquatic Science has a few sophisticated suggestions. In this study, Cynthia Chu and colleagues integrate indices of anthropogenic stress, environmental condition, and freshwater fish biodiversity to identify Canadian watersheds that are especially important targets for conservation and management. The authors compare 2003 findings to recent data and find that, in general, stress indices have crept northward due to increasing temperatures and expansion of anthropogenic activities. So where is the greatest need for conservation in 2015 (and in the future)? Northern BC, Alberta and Ontario! Heads up, everybody! Read Chu et al. for more information (DOI: 10.1139/cjfas-2013-0609) “To be effective, conservation […]
MSc and PhD POSITIONS in CONSERVATION of FRESHWATER FISHES Freshwater fishes are among the most imperiled taxa in the world. Over 30% of freshwater fishes in North America, and over 25% in Canada, are of conservation concern. The primary current stressors related to imperilment are habitat alteration and destruction, and aquatic invasive species. While native species are declining, aquatic invasive species are spreading in North America. These trends are expected to be exacerbated in the future by stressors such as climate change and human population growth. The objective of the Mandrak lab research program is to better understand the patterns, processes, and stressors of Canadian freshwater fishes at multiple […]
The NSERC funded Canadian Integrated Multi-Trophic Aquaculture Network led by Dr. Thierry Chopin frequently publishes an in-depth newsletter on its activities. I have posted it below for those interested, it is a great example of keeping collaborators, stakeholders, and fans up to date on focused research. CIMTAN Snippets V5N7 1412 formatted Stay tuned for more details on Dr. Chopin’s work and Canadian aquaculture in an upcoming Fisheries article.
By Lauren Stoot, Field Biologist, Canadian Wildlife Federation The 2014 Ottawa River eel project, led by Canadian Wildlife Federation, marked the 3rd year of the program. Throughout previous years, the focus has been aimed at adult barrier passage and habitat to better understand the biology of American eels in the Ottawa River. For the 2014-2015, we switched focus to juvenile upstream passage. Together with partners, the Arnprior & District Fish and Game Club and the Ontario Ministry of Natural Resources we were able to complete a variety of objectives this season. Throughout this summer, our team of researchers tested a variety of tactics to catch juvenile American eels in areas […]