Entries by Robert

Recovery of a Mining-damaged Stream Ecosystem

March 27, 2015 in /by

This paper presents a 30+ year record of changes in benthic macroinvertebrate communities and fish populations associated with improving water quality in mining-influenced streams. Panther Creek, a tributary to the Salmon River in central Idaho, USA suffered intensive damage from mining and milling operations at the Blackbird Mine that released copper (Cu), arsenic (As), and cobalt (Co) into tributaries. From the 1960s through the 1980s, no fish and few aquatic invertebrates could be found in 40 km of mine-affected reaches of Panther Creek downstream of the metals contaminated tributaries, Blackbird and Big Deer Creeks.

Salmonid Field Protocols Handbook

March 17, 2015 in /by

State of the Salmon joined forces with public, tribal and private organizations along with individuals around the North Pacific to identify and articulate the best available salmon monitoring practices. We gathered these principles and tools into the Salmonid Field Protocols Handbook: Techniques for assessing status and trends in salmon and trout populations (https://doi.org/10.47886/9781888569926).

An Updated Assessment of Human Activities, the Environment, and Freshwater Fish Biodiversity in Canada

November 10, 2014 in /by

Changes in resource development and expansions of urban centres suggest that the intensity and types of anthropogenic stressors affecting Canada’s watersheds are changing. Chu et al. (2003) integrated indices of freshwater fish biodiversity, environmental conditions, and anthropogenic stress to identify priority watersheds for conservation and management. Here, we update those indices using recent climate and census data to assess changes through time. We also applied different conservation and management scenarios to evaluate the robustness of our prioritization approach. Between time periods, the environmental and stress indices expanded northward because of warmer temperatures at higher latitudes and more intense anthropogenic stress in the northern regions of the provinces.

William Beverley “Bev” Scott (1917-2014)

August 20, 2014 in /by

The Ontario Chapter was saddened to learn of the passing of Dr. William Beverley (Bev) Scott on Monday, August 18, 2014. Bev was a strong supporter of the American Fisheries Society and the Ontario Chapter and had just turned 97 in July.  Dr. Scott was curator of ichthyology at the Royal Ontario Museum from 1950 to […]

The Lake Superior Aquatic Invasive Species Guide

August 9, 2014 in /by

Lake Superior has extraordinary aquatic life, supported by cool coastlines, pristine islands, diverse coastal wetlands, extensive sandy beaches, and the coldest and deepest waters in the Great Lakes. It is the world’s largest freshwater lake by area.  Lake Superior has a relatively simple food web, which means it is especially vulnerable to damage from invasive […]

Guidelines for the Use of Fishes in Research

August 9, 2014 in /by

Guidelines for the Use of Fishes in Research (https://doi.org/10.47886/9781934874394) aids researchers and regulatory authorities regarding responsible, scientifically valid research on fish and aquatic wildlife. The document is intended to provide general recommendations on field and laboratory research, such as sampling, holding, and handling fishes; to offer information on administrative matters, including regulations and permits; and […]

Canadian Recreational Fisheries: 35 Years of Social, Biological, and Economic Dynamics from a National Survey

July 25, 2014 in /by

Fisheries and Oceans Canada has collected a unique, long-term data set on the social, biological, and economic dynamics of Canada’s recreational fisheries. Starting in 1975, these data were collected through mail surveys to recreational anglers at 5-year intervals. A longitudinal analysis revealed that there was an average of 4.5 million licensed anglers catching an annual average of 255 million fish.