Milieu Inc The company
About us

MILIEU is a well-established consulting firm specializing in environmental studies. Over the years, MILIEU has acquired extensive expertise on the behavior and fate of downstream and upstream migratory fish at and in the vicinity of hydroelectric projects and dams.

MILIEU is a dynamic firm recognized for its scientific rigor, its quest for the utmost work quality, and its efficient and timely accomplishment of targeted objectives. MILIEU has gathered a team of outstanding biologists that together provide knowledge, skills, and creativity. They are at the heart of the success of the studies and projects undertaken by the company. MILIEU is sensitive to the client’s needs and expectations and we prioritize to conduct the mandate entrusted to us most efficiently while promoting communication and exchange of ideas between concerned parties.

Our vision

Our vision is to define innovative strategies for our clients combining our experiences, our technologies and our capacity for adaptation.

Flexibility is Milieu Inc's strongest asset, as it allows the company to keep on delivering better, more personalized services to its clients.

Environmental issues are increasingly taken into account in political, institutionnal and industrial circles. The protection of species at risk is now viewed as a sine qua non condition for development.

Since 1993, Milieu offers specialized consulting services for studies of migratory fish species. The company's strong scientific rigour, deliverables quality and numerous innovations has allowed its clients to fully optimize their efforts at environmental protection. In addition, Milieu Inc's track record and credibility boosts manager confidence they will obtain solid results.

Our team
Denis Desrochers, President
Denis Desrochers

Denis, president of Milieu and Senior Biologist, has been the Project Manager for all the eel studies conducted by MILIEU since 1994. Denis has a solid experience in analysing and addressing the challenges that migratory fish face when confronted to dams in water systems. Since 1989, he has been responsible for the supervision, data analysis, and reporting of most studies performed for Hydro-Québec at the Beauharnois, Mitis 1 and Rivière-des-Prairies Power Dams, and at the Chambly Dam. For over 10 years, he has been leading, among others, large and medium scale studies performed for the New York Power Authority. His extensive background and experience allow him to successfully lead studies, to maintain excellent relations with the parties involved, always striving for scientific work of exceptional quality. His areas of expertise are performing studies of upstream and downstream fish passages at hydroelectric projects, freshwater fish biology, fishways and bypass structures, migration and reproduction habitat studies of fish populations, environmental assessments and monitoring, radio-telemetry and hydroacoustic, data acquisition, analysis systems, and electronic eel counters.


Alexandre Guindon, Biologist
Alexandre Guindon

Alexandre joined Milieu in 2010 and has since been responsible for a number of studies conducted for Hydro-Quebec, the New-York Power Authority and Ontario Power Generation. His tasks include customer service, data analysis, quality assurance and report writing. Before joining Milieu, Alexandre held various research assistant positions in Universities. He was in charge of Dr David Bird’s laboratory at UQAM, which is part of the Groupe de Recherche Interuniversitaire en Limnologie (GRIL). He also helped develop coupled hydrological-ecological models at the University of Waikato in New-Zealand, in collaboration with Drs Kevin Collier, Brendan Hicks and David Hamilton. Previously, he completed a B. Sc. in microbiology at Laval and Louvain-la-Neuve ( Belgium ) Universities. During his graduate studies, his focus shifted to aquatic ecology.


Simon Guillemette, Biologist
Simon Guillemette

Simon has been working at Milieu since 2001 and participated in most of the studies performed at the Moses-Saunders Power Dam, Canal-de-Saint-Ours, Rivière-des-Prairies Generating Station, Beauharnois Power Dam, Chambly Dam, and Les Cèdres Generating Station. Simon has handled and tagged more than 7,000 eels. Additionally, he is skilled and highly experienced with driving boats on large river systems and in turbulent waters. Simon spent over 250 hours on the turbulent waters in the tailrace of the Robert Moses Power Dam during the 2007 and 2008 seasons. Before joining Milieu, Simon worked in silviculture for Groupe Proforêt where he was a field leader in charge of performing forest inventories, tree plantings, and sampling methods. His areas of expertise are freshwater fish biology, handling and tagging of American Eels, surgical insertion of telemetry tags, operation of eel ladders and eel traps, silviculture, and operation and data collection using various equipment and software.


Cédric Lemay, Biologist
Cédric Lemay

Cédric has been working at Milieu since 2001 and participated in most of the studies performed at the Moses-Saunders Power Dam, Canal-de-Saint-Ours, Rivière-des-Prairies Generating Station, Beauharnois Power Dam, Chambly Dam, and Les Cèdres Generating Station. Cédric was an intrumental member of the field team that performed the various studies at the Moses-Saunders Power Dam from 2001 to 2009. Since 2006, Cédric is the Principal Biologist responsible for the maintenance, operation, and monitoring of the Eel-Passage Facility at the Robert Moses Power Dam. Cédric has handled and tagged more than 5,000 eels. Before joining Milieu, Cédric was employed at Environment Canada where he participated in the identification and field sampling of aquatic plants. His areas of expertise are freshwater fish biology, aquatic plants, water ecosystems, handling and tagging of American Eels and Redhorse species, surgical insertion of telemetry tags, operation of eel ladders and eel traps, and operation and data collection using various equipment and software.

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