Aquatic Biology

Aquatic ecological assessments are key technical tools that offer real value to environmental management decision-makers. Exponent’s Ecological & Biological Sciences (EcoSciences) practice provides broad expertise in complex issues in aquatic biology and ecology, including directing complex assessments to evaluate impacts from industrial and agricultural chemicals, petrochemicals, and consumer and industrial products, as well as effects on aquatic ecosystems arising from development and remedial activities. Information gained during these assessments can be used to support natural resource damage assessments and key management decisions in the areas of regulatory and permit compliance, product stewardship, and emerging issues.

Exponent's EcoSciences professionals have expertise in a wide variety of disciplines that are relevant to aquatic ecological assessments, including biology, ecology, toxicology, fisheries, database management, geographic information systems (GIS), and statistics.


Our experience in aquatic biology includes: 

  • Evaluation of aquatic exposure and impacts (i.e., contaminants and physical stressors) for environmental management and remedial action decision-making 
  • Technical review and support during agency negotiations, development of regulatory policies and guidelines, and litigation 
  • Environmental impact assessments (EIS/EA) under the National Environmental Policy Act (NEPA) 
  • Environmental monitoring and sampling to measure contaminants in surface water, sediment, soil, fish, plants, and other biota 
  • Fish population and macroinvertebrate community inventories, including field sampling for species diversity, abundance, and biomass, along with habitat characterization
  • Threatened, endangered, and special-status species consultations and biological assessments under Section 7 of the Endangered Species Act 
  • Avian health and biological assessments for water-associated bird species
  • Environmental DNA monitoring of endangered & invasive species
  • Ecosystem restoration including design, implementation, and monitoring 
  • Habitat equivalency analyses (HEA) and resource equivalency analyses (REA) for natural resource damage assessments (NRDA) 
  • Contaminant exposure models and food web evaluations 
  • Spatial distribution analysis, biostatistics, database management, and Geographic information systems (GIS) 
  • Bioavailability and biomonitoring studies.



News & Events