Ostrach Consulting
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Environmental Science

Pathobiology

Design, manage and conduct interdisciplinary Pathobiological investigations.
Evaluation of contaminant effects on early life stages of aquatic animals within the ecosystem.
Fish and aquatic animal pathology.
Development of species specific biochemical and molecular biomarkers.
Biomarker evaluation and validation.
Histopathology & immunohistochemistry.

Aquatic Ecosystem

Fisheries monitoring and assessment.
Use of passive samplers: Spatially and temporal characterization of contaminants within aquatic ecosystems using SPMDs & POCIS.
Laboratory verification of field/monitoring results.
Multiple Stressor assessment & evaluation.
Otolith ageing and growth studies.
Otolith microgeochemical analysis using LA-MC-ICPMS methods to determine habitat use and link to bioaccumulation of contaminants. Ecosystem assessment.
Biological opinions.
Literature reviews.

Toxicology

Maternal transfer of xenobiotics and effects.
Oil spill effects on fish and aquatic biota: short and long term effects.
Real world contaminant exposure and assessment using SPMD/POCIS extracts in resident fish species. Single and complex mixture exposures via IP injections, food laden or by embryonic micro-injection.
Standard toxicological tests (ie. LC-50, EPA 3 species acute and chronic tests).
Carcinogenesis evaluation of contaminants and mixtures.
Experimental design specific to the ecosystem.
Laboratory verification of ecosystem contaminant effects.

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