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I am a quantitative aquatic ecologist generally interested in the links among water, land, and people. I focus on freshwater-terrestrial links, freshwater-marine links, invasive species impacts on aquatic and riparian ecosystems, and the consequences of climate change on freshwater food webs and ecosystems. I am also interested in issues related to diversity and inclusion in science.

Dr. Ivan Arismendi


The animation above represents daily movements of Coastal Giant Salamander (Dicamptodon tenebrosus)  in McRae Creek, Oregon during summer of 2015. We released 30 individuals in a downstream stream section (blue circles) and 20 individuals in an upstream section (red circles). The size of the circle corresponds to the actual animal size. This effort helps to characterize potential influences of extreme low flow and warmer temperature conditions of aquatic vertebrates in headwater streams.

A diverse workforce in science can bring about competitive advantages, innovation, and new knowledge, skills, and experiences for understanding complex problems involving the science and management of natural resources. In this study, we examine the status of gender and race/ethnicity among the United States fisheries science workforce. We show that women and minorities are still a small portion of tenure-track faculty and federal government professionals, likely due to systemic biases and cultural barriers. This study provides a starting point for discussions about how disparities of diversity in fisheries compares to other disciplines and what might be done to improve the climate and conditions for the successful inclusion of diverse scientists.

Society for Freshwater Science Annual Meeting
May 21-26, 2016
American Fisheries Society Annual Meeting
August 21-25, 2016


Reunion Annual de la Sociedad Chilena de Limnologia
October, 2016
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