Assessing the Biological Health of Freshwater Ecosystems

Studying freshwater invertebrates since 1984

Aquatic Biology Associates is the longest established independent laboratory in western North America providing consulting services for aquatic invertebrates. By choice, Aquatic Biology Associates remains a small lab so we can give personal attention to all phases of your project. We help clarify project objectives and assess your data needs to deliver cost-effective quality results.

Robert Wisseman, Senior Scientist, is closely involved in developing national and state bioassessment protocols for evaluating the health and integrity of freshwater ecosystems. Mary Jo Wevers, CEO, has nearly five decades of experience working as an aquatic ecologist. 

Our Technical Services

We are experts in freshwater macroinvertebrate identification, having analyzed tens of thousands of macroinvertebrate samples from streams, rivers, springs, wetlands, ponds, and lakes throughout western North America and Hawaii.

Our technical services include field sampling, endangered invertebrate species surveys, quantitative analysis of macroinvertebrate communities, and fish and bird food web analysis. We provide statistical data analysis in a variety of formats, interpretation of results to meet your needs, and prepared reports.

Our Experience

Aquatic Biology Associates has completed over one thousand projects from freshwater, terrestrial, and estuarine habitats in western North America, from the coast of the Arctic Ocean in Alaska and Canada south into Arizona.

Our projects have ranged from a single sample to over 1,000 samples in size. The U.S. EPA has retained us to consult on developing Biological Condition Gradient models for the Pacific Northwest and actively work on standard taxonomic effort issues in western North America through PNAMP and SAFIT.

Work with us

Send us your samples for analysis. Following our guidelines and recommendations ensures the safe delivery of your samples, efficient and accurate processing by our lab, and high-quality results from our analysis.

Testimonials

San Marino Environmental Associates has used ABA for many years and has found them to produce high-quality, accurate work in a timely manner at reasonable prices.
Jonathan N. Baskin, Ph.D.
San Marino Environmental Associates, California
San Marino Environmental Associates has used ABA for many years and has found them to produce high-quality, accurate work in a timely manner at reasonable prices.
Jonathan N. Baskin, Ph.D.
San Marino Environmental Associates, California
Aquatic Biology Associates has performed our taxonomic analysis for the City of Seattle for the past 16 years. I have been very pleased with the high quality of both work and technical assistance. Bob Wisseman has always been willing to explain various aspects of the process, from the best way to preserve and ship the samples to the interpretation of the results...
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Laura Reed
Senior Environmental Analyst, Seattle Public Utilities, Washington
Aquatic Biology Associates has performed our taxonomic analysis for the City of Seattle for the past 16 years. I have been very pleased with the high quality of both work and technical assistance. Bob Wisseman has always been willing to explain various aspects of the process, from the best way to preserve and ship the samples to the interpretation of the results. Our samples tend to be different from other areas’ samples since the sample sites are highly urbanized, but that has never been a problem for this lab. I’ve always felt that ABA was willing to go the extra distance to make sure the City got the maximum value out of their biological sampling efforts.
Laura Reed
Senior Environmental Analyst, Seattle Public Utilities, Washington
The personable and knowledgeable staff at ABA, Inc., combined with high-quality results and transparent interpretation, make returning to ABA year after year with our macroinvertebrate samples an easy choice.
Rachael Pecore
Columbia, Riverkeeper, Oregon
The personable and knowledgeable staff at ABA, Inc., combined with high-quality results and transparent interpretation, make returning to ABA year after year with our macroinvertebrate samples an easy choice.
Rachael Pecore
Columbia, Riverkeeper, Oregon
Part of the abandoned mine site cleanup process requires benthic macroinvertebrate enumeration to assess potential impacts from former mining activities. This process requires a high-quality laboratory with extensive experience in identifying species in various Pacific Northwest montane stream ecosystems. Aquatic Biology Associates, Inc. has provided us with the requisite high-quality service at reasonable prices. Mr. Wisseman is exceptionally knowledgeable and always provides ...
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Ryan Tobias
Cascades, Earth Sciences, Oregon
Part of the abandoned mine site cleanup process requires benthic macroinvertebrate enumeration to assess potential impacts from former mining activities. This process requires a high-quality laboratory with extensive experience in identifying species in various Pacific Northwest montane stream ecosystems. Aquatic Biology Associates, Inc. has provided us with the requisite high-quality service at reasonable prices. Mr. Wisseman is exceptionally knowledgeable and always provides personal attention to assist us with site-specific abandoned mine cleanup options. Thank you, Mr. Wisseman. I look forward to working with ABA on future mine cleanup projects.
Ryan Tobias
Cascades, Earth Sciences, Oregon
Dr. Wevers benefits ABA clients through a rare combination of scientific expertise and project management experience. I have long been impressed by her acumen in both lab and field settings and her capacity to bring value at all phases of planning, implementing, and reporting for fisheries and macro-invertebrate projects. She is a highly skilled communicator and accomplished in coordinating, managing, and collaborating ...
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Kelly M. Burnett PhD
Aquatic Ecologist, Consultant
Dr. Wevers benefits ABA clients through a rare combination of scientific expertise and project management experience. I have long been impressed by her acumen in both lab and field settings and her capacity to bring value at all phases of planning, implementing, and reporting for fisheries and macro-invertebrate projects. She is a highly skilled communicator and accomplished in coordinating, managing, and collaborating with diverse groups of people, including scientific colleagues, technical professionals, graduate students, and resource managers.
Kelly M. Burnett PhD
Aquatic Ecologist, Consultant
We were very happy with the work ABA did for us. Their skill with the identification of invertebrates from a variety of sources is hard to match. They worked hard to meet our deadlines, provided results that were clear and easy to use, and helped us reorganize the results to ease interpretation for us.
Sayre Hodgson
Salmon Research Biologist, Nisqually Indian Tribe, Washington
We were very happy with the work ABA did for us. Their skill with the identification of invertebrates from a variety of sources is hard to match. They worked hard to meet our deadlines, provided results that were clear and easy to use, and helped us reorganize the results to ease interpretation for us.
Sayre Hodgson
Salmon Research Biologist, Nisqually Indian Tribe, Washington