Studying freshwater invertebrates since 1984

Aquatic Biology Associates is the longest established independent laboratory in western North America providing consulting services for aquatic invertebrates.

Robert Wisseman, Senior Scientist, has been closely involved in developing national and state bioassessment protocols for evaluating the health and integrity of freshwater ecosystems.


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

Transforming your data into information

We are experts in freshwater macroinvertebrate identification, having analyzed over 20,000 macroinvertebrate samples from streams, rivers, springs, wetlands, ponds and lakes throughout western North America.

Our technical services include field sampling, endangered invertebrate species surveys, and quantitative analysis of macroinvertebrate communities and fish diets.

We provide statistical data analysis in a variety of formats, interpretation of results to meet your needs, and prepared reports.


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

Providing personal attention for your project

ABA remains a small lab by choice in order to provide personal attention for all phases of your project.

We help clarify project objectives and assess your data needs to provide quality results that are cost effective.


My research lab has been very satisfied over the years with the quality and thoroughness of the data ABA Inc. has provided, and with the help Bob has given in interpreting the data and tailoring analysis to fit our project-specific needs.

– Mark Wipfli
University of Alaska-Fairbanks
Institute of Arctic Biology