Hydroacoustic Technology, Inc.
  Hydroacoustic Technology, Inc.    
 
  Who We Are  
 
 

Executive Staff
Tracey Steig, General Manager
Samuel Johnston, Vice President, Principal Investigator
Patrick Nealson, Director of Consulting
Bruce Ransom, Program Manager
Dr. John Ehrenberg, Chief Scientist

Fisheries Consultants
Ed (Edward) Kudera, Fisheries Biologist
Kevin Kumagai, Sr. Fisheries Biologist
Barbara Rowdon, Fisheries Biologist
Colleen Sullivan, Sr. Fisheries Biologist
Laura Rudolph, Staff Scientist
Kendall Pegan, Staff Scientist
John Velazquez, Staff Scientist

Software Development
Dave (David) Ouellette, Software Developer

Engineering + Manufacturing

Bill (William) Allen, Chief Engineer
Bob (Robert) Kapinos, VP, Engineering + Manufacturing
Chris (Christopher) Odum, Production Manager
Jason Clark, Electronics Technician

Media, Publications, Creative, Conferences & Events
Caroline Mercado, Director of Marketing

 
 
Executive Team  
 
Tracey Steig, General Manager - tsteig@ HTIsonar.com
Tracey has been a Senior Hydroacoustic Engineer at HTI since 1988. Mr. Steig has 30 years experience conducting and managing hydroacoustic and acoustic tag evaluations at Columbia River hydropower dams, in open rivers, and in lakes and reservoirs worldwide. He has conducted hydroacoustic or acoustic tag studies at Rocky Reach and/or Rock Island dams for Chelan Co. PUD nearly annually since 1982. He received a BS (1978) and MS (1980) in Civil Engineering from the University of Washington. From 1978 to 1981 he was a research engineer at the University of Washington. Mr. Steig was a Senior Scientist at BioSonics, Inc. from 1982 to 1988, managing numerous domestic and international hydroacoustic projects using both fixed-location and mobile survey techniques. He has authored over 100 publications and technical reports on fisheries acoustics, and has taught acoustic tag and fisheries acoustics short courses for over 20 years.
 
 
Samuel Johnston, Project Manager - sjohnston@ HTIsonar.com
Sam has been a Senior Fisheries Biologist with HTI since 1989, and has 30 years of experience in fisheries acoustics. He manages evaluations of migratory fish in rivers, mobile surveys in lakes, hydropower relicensing projects, and co-directs software development. After receiving a BS in Fisheries from Humboldt State University (1980), he served as fisheries biologist with Oregon Dept. of Fish and Wildlife and California Dept. of Fish and Game from 1980 to 1982. Mr. Johnston was a Senior Scientist with BioSonics, Inc. from 1982 to 1989, where he managed numerous hydroacoustic fisheries studies. At HTI Mr. Johnston serves as Project Manager for acoustic tag and hydroacoustic evaluations of smolt entrainment at dams on the Columbia River, and hydroacoustically counts fish in open rivers in Alaska and California. He has over 28 years of experience collecting and analyzing hydroacoustic and acoustic tag data on salmonid migrants at dams on the Columbia and Snake rivers. Mr. Johnston has authored over 50 publications and technical reports on fisheries acoustics, and has taught short courses on fisheries acoustics for over 20 years.
 
Patrick Nealson, Sr. Fisheries Biologist, Director of Consulting - pnealson@ HTIsonar.com
Pat has been a Senior Fisheries Biologist at HTI since 1992, and currently serves as the Director of the Consulting Division. Pat has 30 years of experience conducting and managing hydroacoustic and acoustic tag evaluations of fish populations in a wide range of environments. His past experience includes numerous studies of fish passage at hydropower dams, hydroacoustic evaluations of migratory fish in open river environments, lake and coastal fish population surveys, and large-scale marine assessments. Mr. Nealson has a BS (1981)and a MS Degree (2007) in Fisheries Biology  from the University of Washington. He has authored over 90 publications and technical reports describing acoustic tag and hydroacoustic assessment techniques and study results; and has taught fisheries acoustics short courses for over 20 years.
 
Bruce Ransom, Program Manager - bransom@ HTIsonar.com
Bruce has 33 years of fisheries experience, 30 years of that as hydroacoustic research experience, and 25 years of that at HTI. As Vice President and Program Manager for HTI, he is responsible for acoustic tag and hydroacoustic evaluations of fish distributions and migrational characteristics at hydropower dams, in rivers, in lakes, and at sea worldwide. The majority of his career has been spent managing and conducting hydroacoustic studies of fish passage at hydropower dams, including evaluations required for Federal Energy Regulatory Commission (FERC) relicensing of hydropower projects, and studies of methods of safely bypassing fish past turbine units. Other studies include evaluations of adult salmon escapement, and marine fisheries stock assessments. Mr. Ransom also oversees management of development and manufacturing of research grade acoustic tag and hydroacoustic equipment. He received a BA in English (1973) and BS in Fisheries (1979) from University of Washington. He has authored over 100 publications and technical reports on fisheries acoustics, and has taught short courses on acoustic tag and hydroacoustic fisheries techniques for over 20 years.
 
Dr. John Ehrenberg, Chief Scientist - jehrenberg@ HTIsonar.com
John has been a Senior Hydroacoustic Engineer for HTI since 1990. He received a BS in Electrical Engineering (1966) from Seattle University, a MS in Electrical Engineering from Massachusetts Institute of Technology (1968), and a PhD from University of Washington (1973). Dr. Ehrenberg has 40 years experience in fisheries acoustics. From 1973 to 1983 he was a research professor in Electrical Engineering and a principal research engineer at the University of Washington Applied Physics Laboratory. While at the University, Dr Ehrenberg developed both the dual-beam and split beam techniques for extracting fish target strength from acoustic echoes. From 1983 to 1986 he was Vice-President of Hydroacoustics at BioSonics, Inc. For HTI, Dr. Ehrenberg conducts equipment and software design and implementation, and advises on consulting projects. He has authored nearly 50 publications and technical reports on fisheries acoustics, underwater acoustics and signal processing, and has taught short courses on fisheries acoustics, underwater acoustics and signal processing for 37 years.
 
Fisheries Consultants
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Ed (Edward) Kudera, Fisheries Biologist - ekudera@ HTIsonar.com
Eddie began working at HTI in 2011.  He has worked on numerous acoustic tag studies in central California’s Sacramento-San Joaquin River Delta, as well as other project sites in Washington and Canada.  Prior to joining HTI, he was a Senior Scientist with BioSonics, Inc. with 16 years of previous Columbia River experience conducting hydroacoustic research studies.  Eddie has significant past experience conducting mobile and fixed-aspect hydroacoustic studies, acoustic tagging studies, analyzing data, and producing project reports.  He has authored several technical reports on fisheries acoustics.  Eddie received his BS in Fisheries from the University of Washington in 1983.
   
Kevin Kumagai, Senior Fisheries Biologist - kkumagai@ HTIsonar.com
Kevin began at HTI in 1993 as a Fisheries Biologist. He conducts acoustic tag and hydroacoustic evaluations for HTI at Columbia River hydropower dams and elsewhere. Kevin has over 20 years experience conducting fisheries evaluations with hydroacoustic and acoustic tag techniques worldwide in open rivers, at hydropower dams, and in lakes and reservoirs. He conducts acoustic tag or hydroacoustic studies at Wanapum, Priest Rapids, Rocky Reach, Rock Island dams, in central California's Sacramento-San Joaquin River Delta, among other locations. Mr. Kumagai received a BS in Wildlife and Fisheries Biology from the University of California, Davis (1987). From 1986 to 1993 he worked for the University of Washington, University of California, Parametrix, Inc, and other organizations. He has authored over 20 technical reports on projects using acoustic tag and hydroacoustic techniques, and teaches short courses on fisheries acoustics.
Colleen Sullivan, Senior Fisheries Biologist - csullivan@ HTIsonar.com
Colleen joined HTI in 2009 bringing with her over 20 years of project management experience.  Before coming to HTI, Ms. Sullivan was Senior Scientist at BioSonics through 2003 and worked under contract to the US Bureau of Reclamation through 2008. She specializes in study design, data collection and analysis and report preparation. She has 29 years of experience collecting and analyzing hydroacoustic data. She has authored several publications and taught short courses on hydroacoustics. Her primary responsibilities also include technical proposal and grant application development. She received a BS in Fisheries from the University of Washington (1981) and has completed requirements for the professional Project Management (PMP) certification. 

Barbara Rowdon, Fisheries Biologist - browdon@ HTIsonar.com
Barb joined HTI in 2006 and has been in the fisheries field for 12 years. Barb is responsible for conducting hydroacoustic and acoustic tag evaluations of fish behavior, abundance, distributions, and bypass effectiveness in rivers, at dams, in lakes and in the marine environment. She graduated in 1998 from Pennsylvania State University with a BS in Wildlife and Fisheries Science. She has a SCUBA certificate, motorboat operator certification, as well as a seamanship and safety skills for tug and barge from the Seattle Maritime Academy. Barb has worked with Fish & Wildlife Service, National Park Service and the Army Corps of Engineers. 

Laura Rudolph, Staff Scientist - lrudolph@ HTIsonar.com
Laura began working at HTI in May of 2014. Before joining HTI she worked for the California Department of Water Resources where she assisted on projects such as the Clifton Court Predation Study. In this position she gained experience tagging both predators and Chinook Salmon. Here, Laura came in contact with HTI equipment for the first time. At HTI Laura continues to work on the Clifton Court Predation Study using the knowledge she has learned in the field to assist in the data processing and data analysis. With an Environmental Studies Degree from the University of California Santa Cruz, Laura has always had a passion for learning more about our environment and strives to protect our natural resources. Laura is also SCUBA certified and obtains a Swift Water Rescue certification.
   
Kendall Pegan, Staff Scientist - kpegan@ HTIsonar.com
Kendall began working at HTI in May of 2014. She graduated from the University of Redlands with a BS in Biology focusing on the marine environment. From there she joined the California Department of Water Resources and began her work in fisheries research. While working on the California delta she was introduced to HTI equipment and experienced the field work associated with hydroacoustic tagging. At HTI she is responsible for the data analysis of multiple projects where she focuses on detecting presence and absence as well as creating GIS maps of fish movement. She enjoys working to conserve the environment and likes working in field a where she is constantly learning.
 
Conferences, Events, Media + Publications
 
Caroline Mercado, Director of Marketing - cmercado@ HTIsonar.com
Caroline joined HTI in 2004. She is responsible for all things media, events, & creative. Her primary role manages media (TV, web, print, social) and international events (conferences & workshops). She originally came from the world of communications and design. She is an active member of AFS and a fan of Surfrider. Her BA and Integrated Marketing Comm. Cert. is from University of Washington, Business Admin. Cert. from University of London,
and Masters Marketing Cert. from University of San Francisco. She totally digs environmental science.
 
Software Development
 

Dave (David) Ouellette, Software Developer - douellette@ HTIsonar.com
Dave began working at HTI in 1995. He is responsible for software product design, development, testing, and maintenance for programs used with HTI hydroacoustic and acoustic tag products both in data acquisition and analysis. He is also responsible for development of installation software and help file systems for all applications. He received a BS in Biology (1980) at Bemidji State University, a MS (1986) in Fisheries at Humboldt State University and a completed a Software Engineering Program (1993) at University of Washington. Mr. Ouellette has over 20 years experience in MS Windows programming and has conducted workshops in data analysis and taught short courses in fisheries acoustics. 

Engineering & Manufacturing
 
Bob (Robert) Kapinos, VP, Engineering + Manufacturing - bkapinos@ HTIsonar.com
Bob has been involved in the design and manufacture of a variety of electronic, acoustic, and medical devices over the last thirty plus years. He graduated from the University of Washington (1970) with a BS degree in Materials Engineering. He brings a broad-based background in product introduction, production control, materials management, and business systems design. He has been involved in the design and manufacture of products ranging from implantable intraocular lenses and in-vivo blood gas sensors to professional sound mixers and defibrillators. While focusinig on engineering, he is responsible for both the engineering and manufacturing, servicing, and testing of HTI equipment.

Bill (William) Allen, Chief Engineer - ballen@ HTIsonar.com
Bill joined HTI in 2004 as the Senior Electronics Engineer. His responsiblities include research, design and development of sonar tracking systems for fisheries research including acoustic tag tracking systems, and split-beam hydroacoustic systems. Mr. Allen received his BSEE (1987) and MSEE (1990) from Ohio State University, with a specialization in electromagnetics, and came to HTI with a broad professional background, including automotive, electro-optical and avionics design. He has written publications and technical reports for the Naval Air Warfare Center, Vetronix, Balfrey-Thompson, and Electro-Optical Industries.

Christopher Odum, Production Manager - codum@ HTIsonar.com
Chris joined HTI in 2003 where he has been responsible for the build, test, repair, and calibration of all acoustic tag and hydroacoustic equipment. He oversees product development, documentation and transition to manufacturing. Chris also provides customer support for training and in-field troubleshooting.
He obtained a BS in Oceanography (2003) from the University of Washington. Chris was trained in Electronics and Satellite Communications through the US Navy (1989-1995).
 
Additional Fisheries Research Team
There are more of us here at HTI that make fisheries research happen everyday. To reach any of our team members, email us at support@HTIsonar.com.
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