DARIO W. DIEHL – Marine Programs Coordinator


EDUCATION:

B.S., Marine Biology, California State University, Long Beach, 1982

AREAS OF EXPERTISE:

Diehl specializes in the implementation of biological, chemical, and oceanographic field sampling techniques. He is involved in water quality projects at SCCWRP, including freshwater bioassessments in local streams and contaminant surveys in coastal waters of Southern California. Diehl performs logistical and statistical analyses, and provides field assistance for marine fisheries investigations. He has identified soft and hard bottom marine fishes in the Southern California Bight for more than 30 years. Over these years, he has dissected thousands of fish and collected thousands of sediment samples for contaminant analysis. He has aided recovery of endangered species by releasing inadvertently captured steelhead, and limited or paused sampling projects within estuaries during light-footed clapper rail nesting periods. He was also involved in the logistical coordination, collection, and dissection of fish used in a study contracted from the California Environmental Protection Agency, Office of Environmental Health Hazard Assessment (California Department of Health Services). He has completed NOAA Mussel Watch sampling in the Southern California Bight. In addition, he was the project manager for a monitoring contract for a seawater desalination plant located in the Los Angeles Harbor. Diehl is currently working on Slocum glider data analysis during deployments in the Southern California Bight, in addition to various regional monitoring projects involving the coastal ecology and ocean water quality. He is the field safety officer at SCCWRP, serves as quality assurance officer on various research projects, and is involved in standardizing marine monitoring methods for future surveys. 

Diehl is familiar with word processor (Microsoft Word), spreadsheet (Microsoft Excel) database (Microsoft Access), graphic (Jandel Sigmaplot), statistical (Jandel Sigmastat, Systat, SAS), and GIS (Mapinfo, ArcGIS) computer software, as well as programming languages such as Microsoft Quickbasic, Borland Pascal, Fortran, Matlab, Python). He has used field sampling equipment such as an otter trawl, gill net, beam trawl, Van Veen grab, box core, gravity core, CTD, current meter, microlayer, sediment trap, underwater pump, Slocum glider, sediment profiling camera, and other underwater cameras. He is also experienced in laboratory procedures involving water quality, tissue dissection, chemical extraction procedures through the clean-up step, fish lipid extraction, and particle filtration and quantification.

PROFESSIONAL EXPERIENCE:

Marine Programs Coordinator, Southern California Coastal Water Research Project Authority. Costa Mesa, CA. 1997-Present

Senior Research Technician, Southern California Coastal Water Research Project Authority. Westminster, CA. 1990-1997

Research Technician, Southern California Coastal Water Research Project Authority. Long Beach, CA. 1983-1989

PROFESSIONAL SOCIETIES:

American Fisheries Society

American Geophysical Union

Southern California Association of Marine Invertebrate Taxonomists

Southern California Association of Ichthyological Taxonomists and Ecologists

PUBLICATIONS:

Love, M.S., J.K. Passarelli, C. Okamoto, and D.W. Diehl. The Bigeye Scad, Selar crumenophthalmus (Bloch, 1793) (Family Carangidae), New to the California Marine Fauna, with a List to and Keys for All California Carangids. Submitted to the Bulletin of the Southern California Academy of Science. Oct 2015.

Maruya, K.A., W. Lao, D. Tsukada, D.W. Diehl. 2015. A passive sampler based on solid phase microextraction (SPME) for sediment-associated organic pollutants: comparing freely-dissolved concentration with bioaccumulation. Chemosphere 137: 192-197.

Sabin, L.D., K.A. Maruya, W. Lao, D. Diehl, D. Tsukada, K.D. Stolzenbach, and K.C. Schiff. 2010. Exchange of polycyclic aromatic hydrocarbons among the atmosphere, water, and sediment in coastal embayments of southern California, USA. Environmental Toxicology and Chemistry 29:265-274.

Nikolay, N.P., P.M. DiGiacomo, D.W. Diehl, B.H. Jones, S.C. Johnson, M.J. Mengel, K.M. Reifel, J.A. Warrick, and M. Wang. 2008. Stormwater plume detection by MODIS imagery in the southern California coastal ocean. Estuarine, Coastal and Shelf Science 80:141-152.

Schiff, K., J. Brown, D. Diehl, and D. Greenstein. 2007. Extent and magnitude of copper contamination in marinas of the San Diego region, California, USA. Marine Pollution Bulletin 54:322-328.

Nezlin, N.P., S.B. Weisberg, and D.W. Diehl. 2007. Relative availability of satellite imagery and ship-based sampling for assessment of stormwater runoff plumes in coastal southern California. Estuarine, Coastal and Shelf Science 71:250-258.

Zeng, E.Y., D. Tsukada, D.W. Diehl, J. Peng, K. Schiff, J.A. Noblet, and K.A., Maruya. 2005. Distribution and mass inventories of total Dichlorodiphenyldichloroethylene in water column of the Southern California Bight. Environmental Science and Technology 39: 8170-8176.

Zeng, E.Y., D. Tsukada, and D.W. Diehl. 2004. Development of a solid-phase microextraction-based method for sampling of persistent chlorinated hydrocarbons in an urbanized coastal environment. Environmental Science and Technology 38: 5737-5743.

Schiff, K., D. Diehl, and A. Valkiers. 2004. Copper emissions from antifouling paint on recreational vessels. Marine Pollution Bulletin 48: 371-377.

Schiff, K., S. Bay, and D. Diehl. 2003. Stormwater toxicity in Chollas Creek and San Diego Bay, California. Environmental Monitoring and Assessment 81: 119-132.

Allen, M.J., P.V. Velez, D.W. Diehl, S.E. McFadden, and M. Kelsh. 1996. Demographic variability in seafood consumption rates among recreational anglers of Santa Monica Bay, California in 1991-1992. Fishery Bulletin (U.S.) 94:597-610.

Hose, J.E., J.N. Cross, S. Smith, and D.W. Diehl. 1989. Reproductive impairment in marine sportfishes from contaminated coastal waters off southern California. Environmental Pollution 57: 139-148.

Hose, J.E., J.N. Cross, S. Smith, and D.W. Diehl. 1987. Elevated peripheral erythrocyte micronuclei in fishes from a contaminated site off southern California. Marine Environmental Research 22:167-176.

TECHNICAL REPORTS:

Dodder, N, W Lao, D Tsukada, D Diehl, K Schiff. 2014. Areas of Special Biological Significance: Bioaccumulation Monitoring. Technical Report 816. Southern California Coastal Water Research Project. Costa Mesa, CA.

Bay, S.M., DJ Greenstein, JA Ranasinghe, DW Diehl, AE Fetscher. 2013. Sediment Quality Assessment Technical Support Manual. Technical Report 777. Southern California Coastal Water Research Project. Costa Mesa, CA.

Howard, M.D.A., G. Robertson, M. Sutula, B.H. Jones, N.P. Nezlin, Y. Chao, H. Frenzel, M.J Mengel, D.A. Caron, B. Seegers, A. Sengupta, E. Seubert, D.W. Diehl, and S.B. Weisberg. 2013. Southern California Bight 2008 Regional Monitoring Program: VII. Water Quality. Technical Report 710. Southern California Coastal Water Research Project. Costa Mesa, CA.

Allen, M.J., D. Cadien, D.W. Diehl, K. Ritter, S.L. Moore, C. Cash, D.J. Pondella II, V. Raco-Rands, C. Thomas, R. Gartman, W. Power, A.K. Latker, J. Williams, J.L. Armstrong, E. Miller, and K. Schiff. 2011. Southern California Bight 2008 Regional Monitoring Program: Volume IV. Demersal Fishes and Megabenthic Invertebrates. Technical Report 655. Southern California Coastal Water Research Project. Costa Mesa, CA.

Bay, S.M., D.J. Greenstein, J.A. Ranasinghe, D.W. Diehl, and A.E. Fetscher. 2009. Sediment quality assessment draft technical support manual. Technical Report 582. Southern California Coastal Water Research Project. Costa Mesa, CA.

Nezlin, N.P., P.M. DiGiacomo, D.W. Diehl, B.H. Jones, S.C. Johnson, M.J. Mengel, K.M. Reifel, J.A. Warrick, and M. Wang. 2008. Stormwater plume detection by MODIS imagery in the southern California coastal ocean. pp. 289-304 in: S.B. Weisberg and K. Miller (eds.), Southern California Coastal Water Research Project Annual Report. Costa Mesa, CA.

Nezlin, N.P., S.B. Weisberg, and D.W. Diehl. 2007. Relative availability of satellite imagery and ship-based sampling for assessment of stormwater runoff plumes in coastal southern California. pp. 305-314 in: S.B. Weisberg and K. Miller (eds.), Southern California Coastal Water Research Project 2005-2006 Annual Report. Westminster, CA.

Nezlin, N.P., P.M. DiGiacomo, S.B. Weisberg, D.W. Diehl, J.A. Warrick, M.J. Mengel, B.H. Jones, K.M. Reifel, S.C. Johnson, J.C. Ohlmann, L. Washburn, and E.J. Terrill. 2007. Southern California Bight 2003 Regional Monitoring Program: V. Water Quality. Technical Report 528. Southern California Coastal Water Research Project. Costa Mesa, CA.

Peng, J., K. Maruya, K. Schiff, D. Tsukada, D. Diehl, W. Lao, J. Gan, and E. Zeng. 2007. Organochlorine pesticides and other trace organic contaminants in the Upper Newport Bay watershed. Technical Report 512. Southern California Coastal Water Research Project. Costa Mesa, CA.

Allen, M.J., T. Mikel, D. Cadien, J.E. Kalman, E.T. Jarvis, K.C. Schiff, D.W. Diehl, S.L. Moore, S. Walther, G. Deets, C. Cash, S. Watts, D.J. Pondella II, V. Raco-Rands, C. Thomas, R. Gartman, L. Sabin, W. Power, A.K. Groce, and J.L. Armstrong. 2007. Southern California Bight 2003 Regional Monitoring Program: IV. Demersal Fishes and Megabenthic Invertebrates. Technical Report 505. Southern California Coastal Water Research Project. Costa Mesa, CA.

Zeng, E.Y., D. Tsukada, D.W. Diehl, J. Peng, K. Schiff, J.A. Noblett, K.A. Maruya. 2006. Distribution and mass inventory of total dichlorodiphenyldichloroethylene in the water column of the Southern California Bight. pp. 107-116 in: S.B. Weisberg and K. Miller (eds.), Southern California Coastal Water Research Project 2005-06 Biennial Report. Westminster, CA.

Schiff, K.C., J. Brown, and D. Diehl. 2006. Extent and magnitude of copper contamination in marinas of the San Diego region, CA USA. Technical Report 483. Southern California Coastal Water Research Project. Westminster, CA.

Allen, M.J., D.W. Diehl, and E.Y. Zeng. 2004. Bioaccumulation of contaminants in recreational and forage fish in Newport Bay, California in 2000-2002. Technical Report 436. Southern California Coastal Water Research Project. Westminster, CA.

Schiff , K.C., D.W. Diehl, and A.O. Valkirs. 2004. Copper emissions from antifouling paint on recreational vessels. pp. 41-49 in: S.B. Weisberg and D. Elmore (eds.), Southern California Coastal Water Research Project Biennial Report, 2003-2004. Westminster, CA.

Zeng, E.Y., D. Tsukada, and D.W. Diehl. 2004. Development of a solid-phase microextraction-based method for sampling of persistent chlorinated hydrocarbonsin oceanic environments. pp. 84-93 in: S.B. Weisberg and D. Elmore (eds.), Southern California Coastal Water Research Project Biennial Report, 2003-2004. Westminster, CA.

Shiff, K., D. Diehl, and A. Valkiers. 2003. Copper emissions from antifouling paint on recreational vessels. Technical Report 405. Southern California Coastal Water Research Project. Westminster, CA.

Allen, M.J., A.K. Groce, D. Diener, J. Brown, S.A. Steinert, G. Deets, J.A. Noblet, S.L. Moore, D. Diehl, E.T. Jarvis, V. Raco-Rands, C. Thomas, Y. Ralph, R. Gartman, D. Cadien, S.B. Weisberg, and T. Mikel. 2002. Southern California Bight 1998 Regional Monitoring Program: V. demersal fishes and megabenthic invertebrates. Technical Report 380. Southern California Coastal Water Research Project. Westminster, CA.

Southern California Bight Field Methods Committee. 2002. Field operations manual for marine water-column, benthic, and trawl monitoring in Southern California. Technical Report 359. Southern California Coastal Water Research Project. Westminster, CA.

Schiff, K.C., S.M. Bay, and D.W. Diehl. 2002. Stormwater toxicity in Chollas Creek and San Diego Bay, California. pp. 224-233 in: S.B. Weisberg and D. Elmore (eds.), Southern California Coastal Water Research Project Biennial Report, 2001-2002. Westminster, CA.

Schiff, K., S. Bay, and D. Diehl. 2001. Stormwater toxicity in Chollas Creek and San Diego Bay. Technical Report 340. Southern California Coastal Water Research Project. Westminster, CA.

Santangelo, R.V., D.W. Diehl, and S.B. Weisberg. 1999. Spatial characterization of four water column parameters on the mainland shelf of southern California in July 1994. pp. 89-100 in: S.B. Weisberg and D. Hallock (eds.), Southern California Coastal Water Research Project 1997-98 Annual Report. Westminster, CA.

Allen, M.J., D.W. Diehl, V. Raco, S. Moore, and D. Hallock. 1994. Santa Monica Bay Seafood Consumption Study. Prepared for the Santa Monica Bay Restoration Project. Monterey Park, CA.

Diehl, D.W. 1992. Long term trends in trawl caught fishes off Point Loma, San Diego. pp. 88-97 in: J.N. Cross (ed.), Southern California Coastal Water Research Project 1990-92 Annual Report. Long Beach, CA.

Southern California Coastal Water Research Project, MBC Applied Environmental Sciences, and University of California Santa Cruz Trace Organics Facility. 1992. Santa Monica Bay Seafood Contamination Study. Prepared for the Santa Monica Bay Restoration Project. Monterey Park, CA.

Stubbs, H.H., D.W. Diehl, and G.P. Hershelman. 1987. A Van Veen grab sampling method. Technical Report 204. Southern California Coastal Water Research Project. Long Beach, CA.

Diehl, D.W. and J.E. Hose. 1987. Sediment toxicity to kelp bass larvae. pp. 50-52 in: J.W. Anderson (ed.), Southern California Coastal Water Research Project 1987 Annual Report. Long Beach, CA.

Cross, J.N., V.E. Raco, and D.W. Diehl. 1984. Fish Reproduction around outfalls. pp. 211-227 in: W. Bascom (ed.), Southern California Coastal Water Research Project 1983-1984 Biennial Report. Long Beach, CA.

SELECTED PRESENTATIONS:

Diehl, D. 2011. Field Sampling Refresher Training. Presentation to County of Los Angeles, Department of Public Works, Watershed Management Division. Alhambra, CA.

Diehl, D. 2011. Examining the SCB via Autonomous Underwater Vehicle (AUV). Presentation at SCCWRP Symposium. Costa Mesa, CA.

Diehl, D. 2010. SQO Field Sampling Techniques. Demonstration at SCCWRP Symposium. Costa Mesa, CA.