C Research

. R.J. Diaz & DaughtersBob Diaz's

.

Previous Projects

Project Profiles

POSITIONS

Position: President

R. J. Diaz & Daughters

**** ********* ****

P.O. Box 114

Ware Neck, VA 23178

email: *****@****.***

Mobile: 804-***-****

Position: Professor,

Biological Sciences

School of Marine Science

Virginia Institute of Marine Science

College of William and Mary

P.O. Box 1346, Route 1208

Gloucester Pt., VA 23062

Phone: 804-***-****

email: ****@****.***

EDUCATION

Ph.D. Marine Science, University of Virginia, 1977

M.S. Marine Science, University of Virginia, 1971

B.A. Biology and Chemistry, La Salle College, 1968

HONORS, PRIZES

AND AWARDS

Doctor Honoris Causa from Gothenburg University,

Sweden, 1996

Past President of the Atlantic Estuarine Research

Society, 1996

President of the Atlantic Estuarine Research Society,

1994-1995

Executive Board Member, Estuarine Research Federation,

1994-1995

President elect of the Atlantic Estuarine Research

Society, 1993

Listed in Who's Who Among Hispanic Americans

REFEREED PUBLICATION

Cicchetti, G. and R.J. Diaz. (In Review) A dynamic

budget model of energy flow from infauna to nekton in a polyhaline Virginia salt marsh.

In: M. Winestine (ed.) Concepts and Controversies in Tidal Marsh Ecology.

Bartholomew, A. and R.J. Diaz. (In Review) A

dimensionless index for habitat complexity applicable across all scales and habitat types,

and why complexity thresholds should exist: A discussion with experimental evidence. Mar.

Ecol. Porg. Ser.

Hinchey, E.K. and R.J. Diaz. (In Review) Secondary

production of Paraprionospio pinnata along an estuarine gradient. Mar. Ecol. Prog.

Ser.

Diaz, R.J. and G.R. Cutter. (In Review) In situ

measurement of organism-sediment interaction: rates of burrow formation/abandonment and

sediment oxidation/reduction.Book on animal-sediment interactions edited by

Aller, Aller, and Woodin.

Kropp, R.K.. R.J. Diaz and K. Keay. (In Review)

Infaunal community changes in Boaton Harbor, 1991-1994: A response to sewage sludge

discharge abatement? Estuaries.

Cutter, G.R., D. Yozzo and R.J. Diaz. (In Review) A

note on the hydrodynamic characteristics of Sertularia cupressina (Cnidaria: Hydrozoa:

Leptomedusae: Sertulariidae) and the non-linear aspects of drag for flexible bodies. J.

Exp. Mar. Biol. Ecol.

Downing, J.A. N.N. Rabalais, R.J. Diaz, R.J. Zimmerman,

J.L. Baker and T. Prato. (In Press) Land-sea interactions: Gulf of Mexico hypoxia and

Mississippi basin agriculture. Council for Agricultural Science and Technology, Report No.

134.

Pardieck, R.A., R.J. Orth, R.J. Diaz and R.N. Lipcius.

(In Press) The influence of site, seagrass species and water depth on the selltlement oand

distribution of early stage blue crabs. Mar. Ecol. Prog. Ser.

Yozzo, D.J. and R.J. Diaz, (In Press) Tidal freshwater

wetlands: invertebrate diversity, ecology, and functional significance. In: D. Batzer

(ed.), Ecology of Freshwater Wetlands. Plenum Press.

Nestlerode, J.A. and R.J. Diaz. 1998. Effects of

periodic environmentla hypoxia on predation of a thethered polychaete, Glycera americana:

implication for trophic dynamics. Mar. Ecol. Prog. Ser. 172:185-195.

Summers, J.K., S.B. Weisberg, A.F. Holland, J. Kou,

V.D. Engle, D.L. Breitberg and R.J. Diaz. 1997. Characterizing dissolved oxygen conditions

in estuaries environments. Environ. Monitor. Assess. 45:319-328.

Ers us, C. and R.J. Diaz. 1997. The oligochaeta of the

Cape D Aguilar marine reserve, Hong Kong. p. 189-204. In: B. Morton (ed.). The marine

flora and fauna of Hong Kong and southern China. Hong Kong University Press.

Weisberg, S.B., J.A. Ranasinghe, D.M. Dauer, L.C.

Schaffner, R.J. Diaz and J.B. Frithsen. 1997. An estuarine benthic index of biotic

integrity (B-IBI) for Chesapeake Bay. Estuaries 20:149-158.

Diaz, R.J. and R. Rosenberg. 1996. The Influence of

Sediment Quality on Functional Aspects of Marine Benthic Communities. p. 57-68. In: M.

Munawar and G. Dave (eds.). Development and progress in sediment quality assessment:

rationale, challenges, techniques and strategies. Ecovision World Monograph Series,

Academic Publishing, Amsterdam.

Bonsdorff, E., R.J. Diaz, R. Rosenberg, A. Norkko and

G.R. Cutter. 1996. Characterization of soft-bottom benthic habitats of the land Islands,

northern Baltic Sea. Mar. Ecol. Prog. Ser. 142:235-245.

Diaz, R.J. and R. Rosenberg. 1995 Marine benthic

hypoxia: a review of its ecological effects and the behavioural responses of benthic

macrofauna. Oceanogr. Mar. Biol. Ann. Rev. 33:245-303.

Blake, J.A. and R.J. Diaz. 1994. Input, accumulation

and cycling of materials on the continental slope off Cape Hatteras: An introduction.

Deep-Sea Research II 41:707-710.

Diaz, R.J., G.R. Cutter and D.C. Rhoads. 1994. The

importance of bioturbation to continental slope sediment structure and benthic processes

off Cape Hatteras, North Carolina. Deep-Sea Research II 41:719-734.

Cutter, G.R., R.J. Diaz and J.A. Blake. 1994. Deep-Sea

Research II: CD-ROM Appendix. Deep-Sea Research II 41:981-982.

Cutter, G.R., R.J. Diaz and J. Lee.

1994. Foraminifera from the continental slope off Cape Hatteras, North Carolina. Deep-Sea

Research II. 41:951-964.

Llanso, R.J. and R.J. Diaz. 1994. Tolerance to low

dissolved oxygen by the tubicolous polychaete Loimia medusa. J. Mar. Biol. Ass. U. K.

74:143-148.

Diaz, R.J. and C. Ers us. 1994. Habitat preferences

and species associations of shallow-water marine Tubificidae (Oligochaeta) from the

barrier reef ecosystems off Belize, Central America. Hydrobiologia 278:93-105.

Diaz, R.J. 1994. Response of tidal freshwater

macrobenthos to sediment disturbance. Hydrobiologia 278:201-212.

Diaz, R.J., L.J. Hannsson, R. Rosenberg, P. Gapcynski

and M. Unger. 1993. Rapid assessment of sedimentological and biological characteristics of

a hydrocarbon pollution gradient. Water, Air and Soil Pollution 66:251-266.

Olsen, C.R., I.L. Larsen, P.J. Mulholland, K.L.

VonDamm, J.M. Grebmeier, L.C. Schaffner, R.J. Diaz, and M.M. Nichols. 1993. The concept of

an equilibrium surface applied to particle sources and contaminant distributions in

estuarine sediments. Estuaries 16:683-696.

Rosenberg, R. and R.J. Diaz. 1993. Sulphur bacteria

(Beggiatoa spp.) mats indicate hypoxic conditions in the Inner Stockholm Archipelago.

Ambio 22:32-36.

Diaz, R.J. 1992. Ecosystem assessment using estuarine

and marine benthic community structure. In: A. Burton (ed.), Contaminated Sediment

Toxicity Assessment. Lewis Publ., Boca Raton. pp. 67-85.

Diaz, R.J., R.J. Neubauer, L.C. Schaffner, L. Phil and

S.P. Baden. 1992. Continuous monitoring of dissolved oxygen in an estuary experiencing

periodic hypoxia and the effect of hypoxia on macrobenthos and fish. Sci. Total Environ.

Supplement 1992:1055-1068

Schaffner, L.C., P. Jonsson, R.J. Diaz, R. Rosenberg,

S. Blomquist and P. Gapcynski. 1992. Benthic communities and bioturbation history of

estuarine and coastal systems: Effects of hypoxia and anoxia. Sci. Total Environ.

Supplement 1992:1001-1016.

Phil, L., S.P. Baden, R.J. Diaz and L.C. Schaffner.

1992. Hypoxia-induced structural changes in the diet of bottom feeding fish and crustacea.

Mar. Biol. 112:349-361.

Phil, L., S.P. Baden and R.J. Diaz. 1991. Effects of

periodic hypoxia on distribution of demersal fish and crustaceans. Mar. Biol. 108:349-360.

Orth, R.J., K. Heck and R.J. Diaz. 1991. Littoral and

intertidal systems of the mid-Atalntic coast of the United States. In: P. Nienhuis (ed.),

Ecosystems of the world - intertidal and littoral systems of the world. Elsevier, The

Netherlands.

Luckenbach, M.W., R.J. Diaz, E.C. Zobrist and C.H.

Hutton. 1990. Evaluation of the benthic resource value of impounded and non-impounded

tidal creeks in Virginia, USA. Ocean Shoreline Management 14:35-50.

Nichols, M.M., R.J. Diaz and L.C. Schaffner. 1990.

Effects of hopper dredging and sediment dispersion, Chesapeake Bay. Envirn. Geol. Water

Sci. 15:31-43.

Diaz, R.J. and L.C. Schaffner. 1990. The functional

role of estuarine benthos. p. 25-56. In: M. Haire and E.C. Krome (eds.). Perspectives on

the Chesapeake Bay, 1990. Advances in estuarine sciences. Chesapeake Research Consortium,

Golucester Pt., Virginia. Rpt. No. CBP/TRS41/90.

Fredette, T.J., R.J. Diaz, J. vanMontfrans and R.J.

Orth. 1990. Secondary production within a sea grass (Zostera marina - Ruppia maritima) bed

in lower Chesapeake Bay. Estuaries 13:431-440.

Erseus, C. and R.J. Diaz. 1989. Population dynamics of

Tubificoides amplivasatus (Oligochaeta, Tubidicidae) in the Oresund, Denmark.

Hydrobiologia 180:167-176.

Diaz, R.J. 1989. Pollution and tidal benthic

communities of the James River Estuary, Virginia. Hydrobiologia 180:195-211.

Schaffner, L.C. and R.J. Diaz. 1988. Distribution of

the blue crab, Callinectes sapidus, in the lower Chesapeake Bay during the winter 1985-86:

habitat preference, temporal trends and faunal associations. Estuaries 11:68-72.

Coates, K.A. and R.J. Diaz. 1988. Description of

Guaranidrilus oregonensis N. Sp. (Oligochaeta: Enchytraeidae), the first species of

Guaranidrilus from North America, with comments on the genus and other species. Proc.

Biol. Soc. Washington 101:773-783.

Diaz, R.J. and L.C. Schaffner. 1988. Comparison of

sediment landscapes in the Chesapeake Bay as seen by surface and profile imaging. In: M.

P. Lynch and E. C. Krome, eds. Understanding the Estuary; Advances in Chesapeake Bay

Research. Chesapeake Research Consortium Pub. 129, CBP/TRS, pp. 24-88.

Boyer, L.F., R.J. Diaz, and J.D. Hedrick. 1988.

Computer image-analysis techniques and video-sediment-profile camera enhancements provide

a unique and quantitative view of life at or beneath the sediment-water interface.

Oceans'88. 2:448-453.

Diaz, R.J. 1987. Benthic resources of the Chesapeake

Bay estuarine system. In: S K. Majumdar, L. W. Hall, Jr. and H. M. Austin, (eds.).

Contaminant Problems and management of Living Chesapeake Bay Resources. Pennsylvania

Academy of Science. pp. 159-164.

Schaffner, L.C., R.J. Diaz, C.R. Olsen and I.L. Larsen.

1987. Faunal characteristics and sediment accumulation processes in the James River

estuary, Virginia. Est. Coast. Shelf Sci. 25:211-226.

Schaffner, L.C., R.J. Diaz and R.J. Byrne. 1987.

Processes affecting recent estuarine stratigraphy, Coastal Sediments 87, Am. Soc. Civil

Engineers, pp. 584-599.

Diaz, R.J., C. Erseus and D.F. Boesch. 1987.

Distribution and ecology of Middle Atlantic Bight Oligochaetes. Hydrobiologia 141:215-225.

Fredette, T. and R.J. Diaz. 1986. Life history of G.

mucronatus (Amphipoda) in warm temperate estuarine habitats, York River, VA. J. Crustacean

Biol. 6:57-78.

Roberts, M.H., Jr. and R.J. Diaz. 1986. Impacts of alum

sludge on tidal freshwater streams. pp. 178-188. In: C. Y. Kuo and T. M. Younos, (eds.).

Effects of Upland and Shoreline Land Use on the Chesapeake Bay. Proc. Chesapeake Bay

Research Conference. Williamsburg Va.

Fredette, T. and R.J. Diaz. 1986. Secondary production

of G. mucronatus (Amphipoda) in warm temperate estuarine habitats, York River, VA. J.

Crustacean Biol. 6:729-741.

Diaz, R.J. 1985. Short term dynamics of the dominant

annelids in a polyhaline temperate estuary. Hydrobiologia 115:153-158.

Brinkhurst, R.O. and R.J. Diaz. 1985. Isochaetides

columbiensia new species (Oligochaeta Tubificidae) from the Columbia River, Oregon. Proc.

Biol. Soc. Washington 98:949-953.

Meehan, B.W. and R.J. Diaz. 1985. Comparison of Macoma

balthica labial palps from the eastern and western North Atlantic. J. Moll. Stud.

50:231-232.

Roberts, M.H., Jr. and R.J. Diaz. 1985. Assessing the

effects of alum sludge discharges into coastal waters. Proc. Amer. Water Works Assoc.

Seminar on Recent Advances in Sludge Treatment and Disposal, pp. 43-60.

Alongi, D.M., D.F. Boesch and R.J. Diaz. 1983.

Colonization of meiobenthos in oil-contaminated subtidal sands in the lower Chesapeake

Bay. Mar. Biol. 72, 325-335.

Diaz, R.J. 1980. Ecology of tidal freshwater and

estuarine Tubificidae (Oligochaeta). pp. 319-330 In: R.O. Brinkhurst and D. Cook (eds.).

Aquatic Oilgochaete Biology. Plenum Press.

Bender, M.E., M.H. Roberts, Jr., R.J. Diaz and R.J.

Huggett. 1977. Effects of residual chlorine on estuarine organisms. pp. 101-108. In: L.D.

Jensen (ed.), Biofouling Control Procedures. Marcel Decker, Inc., New York.

Boesch, D.F., R.J. Diaz and R.W. Virnstein. 1976.

Effects of tropical storm Agnes on soft-bottom macrobenthic communities of the James and

York estuaries and the lower Chesapeake Bay. Chesapeake Sci. 17:246-259.

Diaz, R.J. 1975. Effects of brief temperature increases

on larvae of Mulinia lateralis. J. Fish. Res. Bd. Canada 32:1870-1872.

Roberts, M.H., Jr., R.J. Diaz, M.E.

Bender and R.J. Huggett. 1975. Acute toxicity of chlorineto selected estuarine species. J. Fish. Res. Bd. Canada

32:2525-2528.

Diaz, R.J. 1974. Asiatic clam, Corbicula manilensis

(Philippi), in the tidal James River, Virginia. Chesapeake Sci. 15:18-20.

Boesch, D.F. and R.J. Diaz. 1974. New records of

Peracarid crustaceans from oligohaline waters of the Chesapeake Bay. Chesapeake Sci.

15:56-59.

Diaz, R.J., M.E. Bender, D.F. Boesch and R. Jordan.

1973. Biotic indices and water quality. pp. 137-153 In: R.A. Deinbinger (ed.), Models for

Environmental Pollution Control. Ann Arbor Science Pub., Michigan.

Diaz, R.J. 1973. Effects of brief temperature increases

on oyster larvae (Crassostrea virginica). J. Fish. Res. Bd. Canada 30:991-993.

Edited volumes:

Diaz, R.J., J.A. Blake and G.R. Cutter. (Eds.).

1994. Input, accumulation and cycling of materials on the continental slope off Cape

Hatteras. Deep-Sea Research II 41(4-6).

Brinkhurst, R.O. and R.J. Diaz. 1987.

Aquatic Oligochaeta. Developments in Hydrobiology 40, Kluwer Publishers.

Published software, audio, multimedia:

Cutter, G.R., R.J. Diaz and J.A. Blake. 1994. Input,

accumulation and cycling of materials on the continental slope off Cape Hatteras, CD-ROM

APPENDIX. Deep-Sea Research II. Vol. 41, Nos. 4, 5, 6, Elsiver, New York, CD contains data

and 120 images of bottom fauna and sediment from the continental slope off Cape Hatteras.

Back to

Top

/ / / / /

Contact this candidate