RAPHAEL D. MAZOR – Biologist


EDUCATION:

Ph.D., Environmental Science, Policy, & Management, University of California, Berkeley, 2006
B.A., Neuroscience and Behavior, Columbia University, 1999

AREAS OF EXPERTISE:

Dr. Mazor specializes in developing and evaluating bioassessment programs in rivers, streams, and wetlands using benthic macroinvertebrates and algae. Working at large temporal and spatial scales, he has improved precision, accuracy, and sensitivity of bioassessments using the reference condition approach. In addition, he has studied the population genetics of rare and endangered invertebrates endemic to the vernal pools of California. His current research areas focus on the ecological impacts of hydrologic alteration, particularly in intermittent streams.

PROFESSIONAL EXPERIENCE:

Senior Scientist, Southern California Coastal Water Research Project Authority. Costa Mesa, CA. 2010-Present
Scientist, Southern California Coastal Water Research Project Authority. Costa Mesa, CA. 2006-2010
Graduate Student Researcher, University of California, Berkeley. Berkeley, CA. 2001-2006
Biomonitoring Specialist, NYC Parks and Recreation Natural Resources Group. New York, NY. 1999-2001

HONORS AND AWARDS:

National Science Foundation GK12 Teaching Fellow (2006)
Magy Award for Excellence in Entomological Studies (2005)
Robert Usinger Memorial Award in Aquatic Entomology (2004)
Walker Award in Insect Systematics (2004-2005)
North American Benthological Society Award in Conservation Science (2002)
National Science Foundation Graduate Research Fellow - Honorable Mention (2002-2003)
University Fellowship-University of California, Berkeley (2001-2002)
Graduated Summa Cum Laude with departmental honors - Columbia University (1999)
Barry M. Goldwater Fellowship (1998)
Phi Beta Kappa (1998)
Summer Undergraduate Research Fellowship - Columbia University (1996)
Columbia College Dean's List (1995-1999)

PUBLICATIONS:

Chiu, M.-C., C. Leigh, R. Mazor, N. Cid, and V. Resh. 2017. Anthropogenic threats to intermittent rivers and ephemeral streams. Chapter 5 in Intermittent Rivers and Ephemeral Streams: Ecology and Management. T. Datry, N. Bonada, and A. Boulton, eds. Elsevier. 

Mazor, R.D., A.C. Rehn, P.R. Ode, M. Eneln, K.C. Schiff, E.D. Stein, D.J. Gillett, D.B. Herbst, and C.P. Hawkins. 2016. Bioassessment in complex environments: Designing an index for consistent meaning in different settings. Freshwater Science 35(1): 249-271

Ode, P.R, A.C. Rehn, R.D. Mazor, K.C. Schiff, E.D. Stein, J.T. May, L.R. Brown, D.B. Herbst, D. Gillett, K. Lunde, and C.P. Hawkins. 2016. Evaluating the adequacy of a reference site pool for ecological assessments in environmentally complex regions. Freshwater Science 35(1): 237-248

May, J.T., L.R. Brown, A.C. Rehn, I.R. Waite, P.R. Ode, R.D. Mazor, and K.C. Schiff. 2014. Correspondence of biological condition models of California streams at statewide and regional scales. Environmental Monitoring and Assessment 187(1): 4086.

Mazor, R.D., E.D. Stein, P.R. Ode, K. and K. Schiff. 2014. Integrating intermittent streams into watershed assessments: applicability of an index of biotic integrity. Freshwater Science 33(2): 459-474. .

Stein, E.D., B.P. White, R.D. Mazor, J.K. Jackson, J.M. Battle, P.E. Miller, E.M. Pilgrim, and B.W. Sweeney. 2014. Does DNA Barcoding improve performance of traditional stream bioassessment metrics? Freshwater Science 33(1): 302-311. .

White, B.P., E.M. Pilgrim, L.M. Boykin, E.D. Stein, R.D. Mazor. 2014. Comparison of four species-delimitation methods applied to a DNA barcode data set of insect larvae for use in routine bioassessment. Freshwater Science 33(1): 338-348. .

Resh, V.H., L.A. Bêche, J.E. Lawrence, R.D. Mazor, E.P. McElravy, A.P. O’Dowd, D. Rudnick and S.M. Carlson. 2013. Long-term population and community patterns of benthic macroinvertebrates and fishes in northern California Mediterranean-climate streams. Hydrobiologia 719(1): 93-118.

Fetscher, A.E., R. Stancheva, J.P. Kociolek, R.G. Sheath, E.D. Stein, R.D. Mazor, P.R. Ode and L.B. Busse. 2014. Development and comparison of stream indices of biotic integrity using diatoms vs. non-diatom algae vs. a combination. Journal of Applied Phycology 26(1):433-450. .

Resh, V.H., L.A. Bêche, J.E. Lawrence, R.D. Mazor, E.P. McElravy, A.P. O’Dowd, D. Rudnick and S.M. Carlson. Long-term population and community patterns of benthic macroinvertebrates and fishes in northern California Mediterranean-climate streams. Hydrobiologia In press.

Fetscher, A.E., R. Stancheva, J.P. Kociolek, R.G. Sheath, E.D. Stein, R.D. Mazor, P.R. Ode and L.B. Busse. Development and comparison of stream indices of biotic integrity using diatoms vs. non-diatom algae vs. a combination. Journal of Applied Phycology In press.

Stein, E.D., B.P. White, R.D. Mazor, P.E. Miller and E.M. Pilgrim. 2013. Evaluating ethanol-based sample preservation to facilitate use of DNA barcoding in routine freshwater biomonitoring programs using benthic macroinvertebrates. PLoS One 8: e51273

Lunde, K.B., M.R. Cover, R.D. Mazor, C.A. Sommers and V.H. Resh. 2013. Identifying reference conditions and quantifying biological variability within benthic macroinvertebrate communities in perennial and nonperennial northern California streams. Environmental Management 51:1262-1273

Lawrence, J.E., K.B. Lunde, R.D. Mazor, L.A. Bêche, E.P. McElravy, and V.H. Resh. Long-term macroinvertebrate responses to climate change: Implications for biological assessment in mediterranean-climate streams. North American Benthological Society 29:1424-1440.

Mazor, R.D., K. Schiff, K. Ritter, A. Rehn, and P. Ode. 2010. Bioassessment tools in novel habitats: An evaluation of indices and sampling methods in low-gradient streams in California. Environmental Monitoring and Assessment 167:91-104.

Mazor, R.D., A.H. Purcell, and V.H. Resh. 2009. A 20-y study of metric variability and biomonitoring performance using benthic macroinvertebrates. Environmental Management 43:1269-1286.

Ode, P.R., C.P. Hawkins, and R.D. Mazor. 2008. Comparability of biological assessments derived from predictive models and multimetric indices of increasing geographic scope. Journal of the North American Benthological Society 27:967-985.

Mazor, R.D., T.B. Reynoldson, D.M. Rosenberg, and V.H. Resh. 2006. Effects of biotic assemblage, classification, and assessment method on performance of biomonitoring assessments. Canadian Journal of Fisheries and Aquatic Sciences 63:394-411.

TECHNICAL REPORTS:

Stein, E.D., A. Sengupta, R. Mazor R, K. McCune. 2016. Application of Regional Flow-ecology to Inform Management Decision in the San Diego River Watershed. Technical Report 948. Southern California Coastal Water Research Project Authority. Costa Mesa, CA.Mazor, R.D., P.R. Ode, A.C. Rehn, M. Engeln, T. Boyle, E. Fintel, S. Verbugge, and C. Yang. 2015. The California Stream Condition Index (CSCI): Interim instructions for calculating scores using GIS and R. SCCWRP Technical Report 883. SWAMP-SOP-2015-0004.

Rehn, A.C., R.D. Mazor, and P.R. Ode. 2015. The California Stream Condition Index (CSCI): A new statewide biological scoring tool for assessing the health of freshwater streams. SWAMP Technical Memorandum SWAMP-TM_2015-0002.

Mazor, R.D., 2015. Bioassessment survey of the Stormwater Monitoring Coalition Workplan for Years 2015 through 2019. SCCWRP Technical Report 849.

Mazor, R.D., 2015. Bioassessment of perennial streams in southern California: a report on the first five years of the Stormwater Monitoring Coalition’s regional stream survey SCCWRP Technical Report 844.

Mazor, R.D., K. Schiff, P. Ode, and E. Stein. 2012. Final report on bioassessment in nonperennial streams. Technical Report 695. Southern California Coastal Water Research Project. Costa Mesa, CA.

Mazor, E.D., D.J. Gillett, K. Schiff, K. Ritter, and E. Stein. 2009. Ecological condition of watersheds in coastal southern California: Progress report for the Stormwater Monitoring Coalition’s Stream Monitoring Program First Year (2009). Technical Report 639. Prepared for the Stormwater Monitoring Coalition. Southern California Coastal Water Research Project. Costa Mesa, CA.

Mazor, R.D. and K. Schiff. 2008. Surface Water Ambient Monitoring Program (SWAMP) Report on the San Juan Hydrologic Unit. Technical Report 527. Prepared for the California Regional Water Quality Control Board, San Diego Region. Southern California Coastal Water Research Project. Costa Mesa, CA.

Mazor, R.D. and K. Schiff. 2008. Surface Water Ambient Monitoring Program (SWAMP) Report on the Santa Margarita Hydrologic Unit. Technical Report 527. Prepared for the California Regional Water Quality Control Board, San Diego Region. Southern California Coastal Water Research Project. Costa Mesa, CA.

Mazor, R.D. and K. Schiff. 2008. Surface Water Ambient Monitoring Program (SWAMP) Report on the San Luis Rey Hydrologic Unit. Technical Report 527. Prepared for the California Regional Water Quality Control Board, San Diego Region. Southern California Coastal Water Research Project. Costa Mesa, CA.

Mazor, R.D. and K. Schiff. 2008. Surface Water Ambient Monitoring Program (SWAMP) Report on the Carlsbad Hydrologic Unit. Technical Report 527. Prepared for the California Regional Water Quality Control Board, San Diego Region. Southern California Coastal Water Research Project. Costa Mesa, CA.

Mazor, R.D. and K. Schiff. 2008. Surface Water Ambient Monitoring Program (SWAMP) Report on the San Dieguito Hydrologic Unit. Technical Report 527. Prepared for the California Regional Water Quality Control Board, San Diego Region. Southern California Coastal Water Research Project. Costa Mesa, CA.

Mazor, R.D. and K. Schiff. 2008. Surface Water Ambient Monitoring Program (SWAMP) Report on the Los Peñasquitos Hydrologic Unit. Technical Report 527. Prepared for the California Regional Water Quality Control Board, San Diego Region. Southern California Coastal Water Research Project. Costa Mesa, CA.

Mazor, R.D. and K. Schiff. 2008. Surface Water Ambient Monitoring Program (SWAMP) Report on the San Diego Hydrologic Unit. Technical Report 527. Prepared for the California Regional Water Quality Control Board, San Diego Region. Southern California Coastal Water Research Project. Costa Mesa, CA.

Mazor, R.D. and K. Schiff. 2008. Surface Water Ambient Monitoring Program (SWAMP) Report on the Pueblo San Diego Hydrologic Unit. Technical Report 527. Prepared for the California Regional Water Quality Control Board, San Diego Region. Southern California Coastal Water Research Project. Costa Mesa, CA.

Mazor, R.D. and K. Schiff. 2008. Surface Water Ambient Monitoring Program (SWAMP) Report on the Sweetwater Hydrologic Unit. Technical Report 527. Prepared for the California Regional Water Quality Control Board, San Diego Region. Southern California Coastal Water Research Project. Costa Mesa, CA.

Mazor, R.D. and K. Schiff. 2008. Surface Water Ambient Monitoring Program (SWAMP) Report on the Otay Hydrologic Unit. Technical Report 527. Prepared for the California Regional Water Quality Control Board, San Diego Region. Southern California Coastal Water Research Project. Costa Mesa, CA.

Mazor, R.D. and K. Schiff. 2008. Surface Water Ambient Monitoring Program (SWAMP) Report on the Tijuana Hydrologic Unit. Technical Report 527. Prepared for the California Regional Water Quality Control Board, San Diego Region. Southern California Coastal Water Research Project. Costa Mesa, CA.

Stormwater Monitoring Coalition Bioassessment Working Group. 2007. Regional monitoring of Southern California's coastal watersheds. Technical Report 539. Southern California Coastal Water Research Project. Costa Mesa, CA.

SELECTED PRESENTATIONS AND CONFERENCE PROCEEDINGS:

Mazor, R.D., E.D. Stein, R. Guill, A. Suter, A.E. Fetscher. 2016. What kind of conditions do engineered channels support? California Stormwater Quality Association. San Diego, CA.

Mazor, R.D., S. Osterman-Kelm, S. Johnson, C. Loflen, P. Pendleton, D. Bram, R. Maas, H. Boyd, A.E. Fetscher, and E.D. Stein. 2016. Integrating perennial and intermittent rivers into regional ambient assessments in dry climates: Case studies from Southern California. Society for Freshwater Science. Sacramento, CA

Mazor. R.D., P.R. Ode, M. Denton, and E.D. Stein. 2013. Technical obstacles and solutions for the management of temporary streams: What are western States doing, and how can researchers help? Joint Aquatic Sciences Meeting. Portland, OR.

Mazor, R.D., P.R. Ode, A. Rehn, E. Stein, and K. Schiff. 2013. Site-Specific Indices Improve Bioassessment in Complex Environments: An Introduction to the California Stream Condition Index. California Stormwater Quality Association. Tahoe, CA.

Mazor, R.D., P.R. Ode, A. Rehn, D. Gillett, K. Schiff, and E. Stein. 2012. Representing the Perfect in an Imperfect World: California’s Approach to Creating and Evaluating a Network of Reference Streams. Presented at the Society for Freshwater Science. Louisville, KY.

Mazor, R.D., V. Resh, E. Stein, K. Schiff, P. Ode, and A. Rehn. 2011. Bioassessment in Mediterranean Streams: Effects of Hydrologic Stability on Assessment Validity. Presentation at MEDECOS XII. Los Angeles, CA.

Mazor, R.D., E. Stein, K. Schiff, A. Rehn, and P. Ode. 2011. Bioassessment in Nonperennial Streams: Do Traditional Tools Work in Temporary Streams? Presentation at the Annual Meeting of the North American Benthological Society. Providence, RI.

Mazor, R.D., K. Schiff, B. Fetscher, C. Solek, and P. Ode. 2010. Multi-indicator Assessment of Streams in Southern California: First-Year Results from a Collaborative Monitoring Program. Presentation at the Annual Meeting of the North American Benthological Society / American Society for Limnologists and Oceanographers. Santa Fe, NM.

Mazor, R.D., K. Ritter, K. Schiff, and B. Bernstein. 2008. Evaluating multiple indicators in Southern California streams. Presentation at the Headwaters 2 Oceans conference. Long Beach, CA.

Mazor, R.D., K. Schiff, K. Ritter, B. Bernstein, and B. Moore. 2008. Relative influence of physical habitat, water quality, toxicity, and spatiotemporal variables on benthic macroinvertebrate communities in Orange County, California. Presentation at the Annual Meeting of the North American Benthological Society. Salt Lake City, UT.

Mazor, R.D., P. Ode, A. Rehn, and K. Schiff. 2008. Bioassessment in non-perennial streams. Presentation at the California Aquatic Bioassessment Workgroup. Davis, CA.

Mazor, R.D. and K. Schiff. 2008. Evaluation of bioassessment tools in non-perennial streams. Presentation at the Bay Area Macroinvertebrate Biomonitoring Information Network Annual Meeting. Oakland, CA.

Mazor, R.D. and K. Schiff. 2006. Bioassessment in Low Gradient Streams. Presentation at the California Aquatic Bioassessment Workgroup. Davis, CA.

Mazor, R.D. 2006. Finding the same river twice: Controlling temporal and spatial variability in benthic bioassessments. Plenary presentation at the Benthic Biomonitoring 2006 Conference. Vancouver, BC, Canada.

Mazor, R.D. and V.H. Resh. 2006. Biomonitoring metric variability and reference period bias in long-term benthic macroinvertebrate data: a 20-y study from northern California. Presentation at the 54th Annual Meeting of the North American Benthological Society. Anchorage, AK.

Mazor, R.D., T.B. Reynoldson, D.M. Rosenberg, and V.H. Resh. 2004. Precision, accuracy, and sensitivity in a large-scale biomonitoring study: benthic macroinvertebrates and periphyton of the Fraser River catchment, British Columbia, Canada. Presentation at the 52nd Annual Meeting of the North American Benthological Society. Vancouver, BC.