Articles and Reports

2024

Doyal, S.L., Oakley, J.W., and Guillen, G. 2024. Dwarf seahorse (Hippocampus zosterae) density, distribution, and habitat use in Texas. Estuaries and Coasts. doi: 10.1007/s12237-024-01423-x

Gordon, M., Curtis, S., Whitley, S., Robertson, S., Weiberg, G., Strickland, K., and Oakley, J.W. 2024. Updated fish species inventory for upper San Felipe Creek, Del Rio, Val Verde County, Texas, USA. The Southwestern Naturalist 68(1):69-74.

Gordon, M., Mokrech, M., Reistle, W., Oakley, J.W., McDermid, R., Hammerbach, G., and DeChellis, D. 2024. Microplastic distribution and impacts to diamond-backed terrapin, highlighting public education and future effects of sea-level rise. Quarterly Progress Report FY24, Quarter 2. EIH Report 24-001, 6 pp.

Gordon, M., Mokrech, M., Reistle, W., Oakley, J.W., McDermid, R., Hammerbach, G., DeChellis, D., and Thurman, L. 2024. Microplastic distribution and impacts to diamond-backed terrapin, highlighting public education and future effects of sea-level rise. Quarterly Progress Report FY24, Quarter 3. EIH Report 24-004, 10 pp.

Gordon, M., Mokrech, M., Reistle, W., McDermid, R., Hammerbach, G., DeChellis, D., and Thurman, L. 2024. Microplastic distribution and impacts to diamond-backed terrapin, highlighting public education and future effects of sea-level rise. Quarterly Progress Report FY24, Quarter 4. EIH Report 25-001, 8 pp.

Oakley, J.W., Guillen, G., Steinhaus, J., Cox, E., Sager, M., and Huette, M. 2024. Microplastics in the Galveston Bay watershed: the big impacts of tiny pollution. Final report. Prepared for the Galveston Bay Estuary Program, Contract 582-21-10096. EIH Report 24-002, 57 pp.

Reistle, W. and McDermid, R. 2024. UHCL habitat restoration and nature trail. Final report. Prepared for The Texas General Land Office, Contract 22-045-019-D116, 75 pp.

2023

Carr, J.L., Terry, J., Ligon, D.B., Enge, K.M., Krueger, C.J., Thomas, T.M., Brashear, G., Johnston, G.R., Gordon, M., Lloyd, G., Hill, E.P., Stevenson, D.J., and Steen, D.A. 2023. Nesting emergences and other terrestrial movements of Macrochelys (Testudines: Chelydridae). Biology and Conservation of Alligator Snapping Turtles (Macrochelys) – Southeastern Naturalist 22(SP12):378–387.

Glorioso, B.M., Carr, J.L., Franklin, C.J., Gordon, M., Johnson, A.C., Kessler, E.J., Munscher, E., Pearson, L., Ricardez, V., and Tuggle, A. 2023. Condition and coloration of lingual lures of alligator snapping turtles. Biology and Conservation of Alligator Snapping Turtles (Macrochelys) – Southeastern Naturalist 22(SP12):429–439. 

Gordon, M., Bontrager, D.R., Watson, J.E., Corbett, T., Crawford, C., Franklin, C.J., Kirby, B., Munscher, E., Ricardez, V., and Tuggle, A. 2023. Using local ecological knowledge to document distribution and temporal patterns of Macrochelys temminckii in Texas. Biology and Conservation of Alligator Snapping Turtles (Macrochelys) – Southeastern Naturalist 22(SP12):171-196.

Gordon, M., Mokrech, M., Reistle, W., Oakley, J.W., McDermid, R., Hammerbach, G., DeChellis, D., and Guillen, G.J. 2023. Microplastic distribution and impacts to diamond-backed terrapin, highlighting public education and future effects of sea-level rise. Quarterly Progress Report FY24, Quarter 1. EIH Report 23-015, 10 pp.

Gordon, M., Nagro J., DeChellis, D., Oakley, J.W., Apodaca, J.J., Collins, L., Speight, L., Mokrech, M., Bush, D., and Guillen, G. 2023. Distribution and habitat association of western chicken turtles (Deirochelys reticularia miaria) in Texas. Final report. Prepared for the Texas Comptroller of Public Accounts, Contract 20-6997BG. EIH Report 23-001, 133 pp.

Gordon, M., Giles, B., Garcia, K., Oakley, J.W., Munscher, E., Apodaca, J.J., Krohn, A., Bontrager, D.R., Kittle, J., Mokrech, M., Sankey, T., Tuggle, A., Franklin, C., Ricardez, V., Schalk, C., et al. 2023. Baseline study of alligator snapping turtle (Macrochelys temminckii) population viability in Texas watersheds. Final report. Prepared for the Texas Comptroller of Public Accounts, Contract 20-6997BG. EIH Report 23-002, 107 pp.

Hughes, N., Gordon, M.L., Bullard, S., Alvarez, A., Bontrager, D.R., Davidson, D., DeChellis, D., Garcia, K., Giles, B.G., Gray, R., Kittle, J., Marzullo, I., McKenzie, T., Nagro, J., Puzon, A., et al. 2023. Aquatic turtle county records from trapping surveys in east Texas, USA. Herpetological Review 54(1):84-86.

Lettrich, M.D., Asaro, M.J., Borggaard, D.L., Dick, D.M., Griffis, R.B., Litz, J.A., Orphanides, C.D., Palka, D.L., Soldevilla, M.S., Balmer, B., Chavez, S., Cholewiak, D., Claridge, D., Ewing, R.Y., Fazioli, K.L., et al. 2023. Vulnerability to climate change of United States marine mammal stocks in the western North Atlantic, Gulf of Mexico, and Caribbean. PLOS ONE 18(9): e0290643.

Oakley, J.W., Chau, K., and McDaniel, S. 2023. Targeted bacteria monitoring project: field investigation final report, assessment unit 1007T _01, Bintliff Ditch. Final report. Environmental Institute of Houston. 29 pp.

Oakley, J.W., Chau, K., and McDaniel, S. 2023. Targeted bacteria monitoring project: field investigation final report, assessment unit 1007U_01, Mimosa Ditch. Final report. Environmental Institute of Houston, 18 pp.

Oakley, J.W., Chau, K., and McDaniel, S. 2023. Targeted bacteria monitoring project: field investigation final report, assessment unit 1014O_01, Spring Branch (tributary of Buffalo Bayou). Final report. Environmental Institute of Houston. 29 pp.

Oakley, J.W., Chau, K., and McDaniel, S. 2023. Targeted bacteria monitoring project: field investigation final report, assessment unit 1017_03, White Oak Bayou above tidal. Final report. Environmental Institute of Houston. 23 pp.

Oakley, J.W., Chau, K., and McDaniel, S. 2023. Targeted bacteria monitoring project: field investigation final report, assessment unit 1017A_01, Brickhouse Gully. Final report. Environmental Institute of Houston. 33 pp.

Oakley, J.W., Chau, K., and McDaniel, S. 2023. Targeted bacteria monitoring project: field investigation final report, assessment unit 1017B_02, Cole Creek. Final report. Environmental Institute of Houston. 27 pp.

Oakley, J.W., Chau, K., and McDaniel, S. 2023. Targeted bacteria monitoring project: field investigation final report, assessment unit 1017D_01, unnamed tributary of White Oak Bayou. Final report. Environmental Institute of Houston, 19 pp.

Oakley, J.W., Chau, K., and McDaniel, S. 2023. Targeted bacteria monitoring project: field investigation final report, assessment unit 1017E_01, unnamed tributary of White Oak Bayou. Final report. Environmental Institute of Houston, 17 pp.

Oakley, J.W., Chau, K., and McDaniel, S. 2023. Targeted bacteria monitoring project: field investigation final report, assessment unit 1101D_01, unnamed tributary of Robinson Bayou. Final report. Environmental Institute of Houston. 23 pp.

Oakley, J.W., Guillen, G., Hanke, M., Batte, S., and Leija, H. 2023. Dermo infection (Perkinsus marinus) in sun-cured oyster shells; informing oyster restoration in Texas. Final report. Prepared for the Galveston Bay Foundation (FAIN: 22-045-005-D102, Subaward: GBF-UHCL-2021-1). Report EIH23-012, 38 pp.

Oakley, J.W., Kean, P., Sak, A., Underwood, E., Swinford, J., Anderson, J., Curtis, S., Davis, S., and Guillen, G. 2023. Utilizing eDNA and plankton sampling to monitor American eel recruitment in Texas. Final report. Prepared for the Texas Parks and Wildlife Department, Contract 0002501. EIH 23-014, 24 pp.

2022

Gordon, M.L., and Oakley, J.W. 2022. San Felipe Creek restoration project: Devils River minnow (Dionda diaboli). Prepared for CP&Y, Inc., Contract C22311. EIH Report 22-001, 11 pp.

Hughes, N., Gordon, M., Nagro, J., and Yargeau, E. 2022. Nerodia fasciata confluens (broad-banded watersnake). Herpetological Review 53(3):446.

Mintzer, V.J., Quackenbush, A., and Fazioli, K.L. 2022. Site fidelity of common bottlenose dolphins (Tursiops truncatus) in a highly industrialized area of the Galveston Bay estuary. Marine Mammal Science, 1–18. doi: 10.1111/mms.12984

Mohrman, T. 2022. Conservation Action Plan for diamond-backed terrapins in the Gulf of Mexico. M. Gordon and G. Guillen, Advisory Team Members and Key Contributors. Produced in partnership with The Nature Conservancy and Gulf of Mexico Alliance. 49 pp.

Oakley, J.W., Lesher, S., Dennis, G.,  Ulibarri, R., and Guillen, G. 2022. Distribution, abundance, and habitat use of the dwarf seahorse, Hippocampus zosterae, along the Texas coast. Final Report. Submitted to Texas Parks and Wildlife Department, Contract 526332. EIH 21-001, 78 pp.

Gordon, M., Guillen, G.J., Franklin, C.J., and Ricardez, V. 2021. Malaclemys terrapin littoralis (Texas diamond-backed terrapin). Malocclusion (prognathism). Herpetological Review 52(4):847-848.

Gordon, M.L., Nagro, J., Mokrech, M., Oakley, J., and Guillen, G. 2021. Preliminary development of aquatic turtle aerial and eDNA survey methods in the Sabine River basin. EIH Report 21-001, 29 pp.

Mintzer, V.J., and Fazioli, K.L. 2021. Salinity and water temperature as predictors of bottlenose dolphin (Tursiops truncatus) encounter rates in upper Galveston Bay, Texas. Frontiers in Marine Science 8:1627. doi: 10.3389/fmars.2021.754686

Oakley, J.W., Hansen, J., Molina, T., Curtis, S., and Guillen, G.J. 2021. Extensive field effort using a novel gear type to detect recruitment of American eel (Anguilla rostrata) in Texas. Prepared for Texas Parks and Wildlife Department, Contract 505077. EIH Report 21-002, 42 pp.

Fazioli, K., and Mintzer, V. 2020. Short-term effects of Hurricane Harvey on bottlenose dolphins (Tursiops truncatus) in Upper Galveston Bay, TX. Estuaries and Coasts 43:1013–1031. doi: 10.1007/s12237-020-00751-y

Metz, T.L., Gordon, M., Mokrech, M., and Guillen, G. 2020. Movements of juvenile green turtles (Chelonia mydas) in the nearshore waters of the northwestern Gulf of Mexico. Frontiers in Marine Science 7:647. doi: 10.3389/fmars.2020.00647

Oakley, J.W. and Guillen, G. 2020. Impact of Hurricane Harvey on Galveston Bay saltmarsh nekton communities. Estuaries and Coasts 43:984–992. doi: 10.1007/s12237-019-00581-7

Oakley, J.W., Omar, M.E., and Guillen, G.J. 2020. Characterization of the influence of freshwater inflow on Trinity River delta bioindicators. EIH Report 20-001, 57 pp.

Guillen, G., Oakley, J., Scanes, C., and Gordon, M. 2019. Texas coast-wide characterization of the saltmarsh topminnow (Fundulus jenkinsi). EIH Report 19-001, 95 pp.

Fazioli, K., Guillen, G., and Oakley, J.W. 2018. Technical consultation for compliance with the Marine Mammal Protection Act in support of the Coastal Texas Protection and Restoration Study. EIH Report 18-003, 57 pp.

Guillen, G. and Mokrech, M. 2018. Mapping shallow reefs using low-cost scanning sonar and drone photography systems. EIH Technical Report 18-001:72.

Oakley, J.W., Gordon, M., and Guillen, G. 2018. Little White Oak Bayou at Timble Rd. biological monitoring summary packet. EIH Report 18-002, 27 pp.

Oakley, J.W., Lawing, A.M., Guillen, G.J., and Gelwick, F. 2018. Defining ecologically, geographically, and politically coherent boundaries for the Northern Gulf of Mexico coastal region: facilitating ecosystem-based management. Ocean and Coastal Management 154(2018):1–7. doi: 10.1016/j.ocecoaman.2017.12.019

Alleman, B.J. and Guillen, G. 2017. Prey availability and diet analysis of Texas diamond-backed terrapin (Malaclemys terrapin littoralis). Chelonian Conservation and Biology 16.1:52–61. doi: 10.2744/CCB-1228.1

Bonner, T., Duke, J., Guillen, G., and Bio-WEST. 2017. Instream flows research and validation methodology framework 2016-2017. Final Report, 120 pp.

Oakley, J.W., Gordon, M., and Guillen, G. 2017. Beaver Creek at FM 2326 biological monitoring summary packet. EIH Report 17-004, 46 pp.

Oakley, J.W., Gordon, M., and Guillen, G. 2017. Mill Creek at FM 149 biological monitoring summary packet. EIH Report 17-005, 46 pp.

Oakley, J.W., Gordon, M., and Guillen, G. 2017. Wichita River at FM 810 biological monitoring summary packet. EIH Report 17-003, 49 pp.

Anderson, A., Heath, S., and Guillen, G. 2016. A time activity budget of American oystercatchers (Haematopus palliatus) breeding in Texas. The Wilson J. of Ornithology 128(3):656-663. doi: 10.1676/1559-4491-128.3.656

Alleman, B.J. and Guillen, G.J. 2016. Malaclemys terrapin littoralis (Texas diamond-backed terrapin). Herpetological Review 47(2):286.

Guillen, G., Gordon, A., Oakley, J., and Mokrech, M. 2016. Trinity River delta and upper Trinity Bay rangia population assessment. EIH Report 16-001, 58 pp.

Alleman, B.J., Byrne, R.E., Curtis, S.G., Gordon, M.L., and Guillen, G.J. 2015. Graptemys pseudogeographica kohnii (Mississippi map turtle). Herpetological Review 46(4):565.

Alleman, B.J., Lane, M.S., Guillen, G.J., and Muegge. J. 2015. Graptemys pseudogeographica kohnii (Mississippi map turtle). Herpetological Review 46(4):565.

Bonner, T., Duke, J., Guillen, G., Winemiller, K., and Bio-WEST. 2015. Instream flows research and validation methodology framework and Brazos estuary characterization. EIH Final Report, 159 pp.

Clarkson, E. and Guillen, G. 2015. Malaclemys terrapin littoralis (Texas diamond-backed terrapin). Herpetological Review 46(1):83.

Curtis, S.G., Perkin, J.S., Bean, P.T., Sullivan, M.L., and Bonner, T.H. 2015. Guadalupe bass Micropterus treculii. In: Tringali, M.D., Long, J.M., Birdsong, T.W., and Allen, M.S. (Eds.). Black Bass Diversity: Multidisciplinary Science for Conservation. Symposium 82. Bethesda, Maryland: American Fisheries Society, pp. 55-60.

Fontaine, C.M., Mokrech, M., and Rounsevell, D.A. 2015. Land use dynamics and coastal management. In: Nicholls, R.J., Dawson, R.J., Day (née Nicholson-Cole), S.A. (Eds.). Broad Scale Coastal Simulation. Vol. 49. Advances in Global Change Research. Springer Netherlands, pp. 125-146.

Guillen, G.J. and Curtis, S.G. 2015. Establishment of the bluefin killifish Lucania goodei in urban streams of Texas. Texas J. Sci. 67(2):79-84. 

Guillen, G., Gordon, M.L., Oakley, J., Mokrech, M., Alleman, B., George, R., and Bush, D. 2015. Population survey of the Texas diamondback terrapin, Malaclemys terrapin littoralis, in San Antonio Bay, Matagorda Bay, and Sabine Lake. EIH Report 15-001, 194 pp.

Guillen, G., Robertson, J., Oakley, J., and Curtis, S. 2015. Distribution, abundance, and habitat use of the saltmarsh topminnow (Fundulus jenkinsi). EIH Report 15-002, 61 pp.

Hall, S.K., Guillen, G., Biggs, H., and Stokes, Jr., R.J. 2015. Volunteers' age and its relationship to community-based restoration. Texas J. Sci. 67:115-131.

Jude, S., Mokrech, M., Walkden, M., Thomas, J., and Koukoulas, S. 2015. Visualising potential coastal change: communicating results using visualisation techniques. In: Nicholls, R.J., Dawson, R.J., Day (née Nicholson-Cole), S.A. (Eds.). Broad Scale Coastal Simulation. Vol. 49. Advances in Global Change Research. Springer Netherlands, pp. 255-272.

Mokrech, M., Gardiner, S., Nicholls, R.J., Watkinson, A.R., and Sutherland, W.J. 2015. Coastal wetland habitats: future challenges and potential solutions. In: Nicholls, R.J., Dawson, R.J., Day (née Nicholson-Cole), S.A. (Eds.). Broad Scale Coastal Simulation.Vol. 49. Advances in Global Change Research. Springer Netherlands, pp, 167-185.

Mokrech, M., Nicholls, R.J., Day, S.A. (née Nicholson-Cole), Dawson, R.J., Jude, S., and Koukoulas, S. 2015. GIS platforms for managing, accessing and integrating model results: the Tyndall coastal simulator experience. In: Nicholls, R.J., Dawson, R.J., Day (née Nicholson-Cole), S.A. (Eds.). Broad Scale Coastal Simulation. Vol. 49. Advances in Global Change Research. Springer Netherlands, pp. 273-298.

Guillen, G., Mokrech, M., Oakley, J., and Moss, A. 2014. Armand Bayou water quality improvement grant: UHCL created stormwater treatment wetland. EIH Report 13-003, 137 pp.

Guillen, G., Moss, A., Oakley, J., and Curtis, S. 2014. Cedar Bayou above tidal at FM 1942 (TCEQ 11118) biological monitoring summary packet. EIH Report, 48 pp.

Guillen, G., Moss, A., Oakley, J., and Curtis, S. 2014. Cedar Bayou above tidal at US 90 (TCEQ 11120) biological monitoring summary packet. EIH Report, 45 pp.

Metz, T., Guillen, G., and Gordon, M. 2014. Tracking the incidence of the fibropapilloma virus in Texas' green sea turtle population. EIH Report 14-002, 6 pp.

Newstead, D. and Vale, K. 2014. Protecting important shorebird habitat using piping plovers as an indicator species. Final Report to US Fish & Wildlife Service, 35 pp.

Oakley, J.W., Simons, J., and Stunz, G.W. 2014. Spatial and habitat-mediated food web dynamics in an oyster-dominated estuary. J. of Shellfish Research 33(3):841-855. doi: 10.2983/035.033.0319

Guillen, G., Moss, A., and Oakley, J. 2013. Cedar Bayou above tidal at FM 1942 (TCEQ 11118) biological monitoring summary packet. EIH Report, 45 pp.

Guillen, G., Moss, A., and Oakley, J. 2013. Cedar Bayou above tidal at US 90 (TCEQ 11120) biological monitoring summary packet. EIH Report, 42 pp.

Guillen, G. and Oakley, J.W. 2013. Bycatch mortality and critical life history parameters of the Texas diamondback terrapin. EIH Report 13-004, 151 pp.

Guillen, G., and Oakley, J.W. 2013. Response of aquatic communities in urban areas of Harris County to stream substrate: 2007-2010. EIH Report 13-005, 153 pp.

Guillen, G., Oakley, J.W., and Mokrech, M. 2013. Baseline aquatic community survey at restoration stream segments (P138-00-00, T101-0-00, L100-00-00). EIH Report 13-001, 156 pp.

Guillen, G., Oakley, J.W., Moss, A., and Shepard, M. 2013. Aquatic life monitoring study report. EIH Report 13-002, 66 pp.

Sutton, G. and Melendez, L. 2013. Determination of juvenile blue crab (Callinectes sapidus) seasonal growth parameters for input into population and community assessment models. Interim Annual Report, 47 pp.

Guillen, G., Mokrech, M., Oakley, J.W., Shepard, M., and Vale, K. 2012. Time of travel study at Mason Park. EIH Report 12-002, 42 pp.

Guillen, G., Mokrech, M., Oakley, J.W., Shepard, M., Vale, K., and Moss, A. 2012. Harris County Texas comprehensive turbidity study results report. EIH Report 12-001, 138 pp.

Guillen, G., Oakley, J.W., Shepard, M., Moss, A., and Vale, K. 2012. Springwoods subdivision study. EIH Report 12-003a, 80 pp.

Guillen, G., Oakley, J.W., Shepard, M., and Vale, K. 2012. Sedimentation study of Dickinson Bayou tidal (segment 1103). EIH Report 12-003, 103 pp.

Guillen, G., Clarkson, E., and Oakley, J.W. 2011. Mid-Texas coast complex Texas diamondback terrapin (Malaclemys terrapin littoralis) ecology project. EIH Report 12-004, 33 pp.

Guillen, G., Mokrech, M., and Wrast, J. 2011. Texas nutrient criteria development support project. EIH Report 11-001, 679 pp.

Guillen, G. and Wrast, J. 2011. Central and southeast Texas recreational use attainability analyses project: San Bernard River above tidal (segment 1302) comprehensive RUAA, Gum Tree Branch (1302A) basic RUAA, and West Bernard Creek (1302B) basic RUAA. EIH Report 11-002, 57 pp.

Guillen, G. 2010. Lake Madeline bacteria study final summary report. EIH Report 10-014, 24 pp.

Guillen, G., Brinkmeyer, R., and Wrast, J. 2010. Influence of the Waugh Street bat colony on indicator bacteria levels in Buffalo Bayou. EIH Report 10-016, 48 pp.

Guillen, G. and Wrast, J. 2010. Central and southeast Texas recreational use attainability analyses project; Brushy Creek (segment 1244) comprehensive RUAA. EIH Report 10-006, 31 pp.

Guillen, G. and Wrast, J. 2010. Central and southeast Texas recreational use attainability analyses project; Bullhead Bayou (segment 1245C) and unnamed tributary of Bullhead Bayou (segment 1245D) basic RUAA. EIH Report 10-004, 24 pp.

Guillen, G. and Wrast, J. 2010. Central and southeast Texas recreational use attainability analyses project; Caney Creek above tidal (segment 1305) comprehensive RUAA. EIH Report 10-003, 31 pp.

Guillen, G. and Wrast, J. 2010. Central and southeast Texas recreational use attainability analyses project; Cedar Creek (segment 1209G) basic RUAA. EIH Report 10-007, 21 pp.

Guillen, G. and Wrast, J. 2010. Central and southeast Texas recreational use attainability analyses project; Country Club Branch (segment 1209D) basic RUAA. EIH Report 10-008, 20 pp.

Guillen, G. and Wrast, J. 2010. Central and southeast Texas recreational use attainability analyses project; Duck Creek (segment 1209H) basic RUAA. EIH Report 10-009, 22 pp.

Guillen, G. and Wrast, J. 2010. Central and southeast Texas recreational use attainability analyses project; Gibbons Creek (segment 1209I) basic RUAA. EIH Report 10-010, 22 pp.

Guillen, G. and Wrast, J. 2010. Central and southeast Texas recreational use attainability analyses project; Navasota River below Lake Limestone (segment 1209) comprehensive RUAA. EIH Report 10-005, 33 pp.

Guillen, G. and Wrast, J. 2010. Central and southeast Texas recreational use attainability analyses project; Shepherd Creek (segment 1209J) basic RUAA. EIH Report 10-011, 21 pp.

Guillen, G. and Wrast, J. 2010. Central and southeast Texas recreational use attainability analyses project; Steele Creek (segment 1209K) basic RUAA. EIH Report 10-012, 23 pp.

Guillen, G. and Wrast, J. 2010. Central and southeast Texas recreational use attainability analyses project; Wickson Creek (segment 1209E) basic RUAA. EIH Report 10-013, 23 pp.

Guillen, G. and Wrast, J. 2010. Comprehensive recreational use attainability analysis of Dickinson Bayou above tidal (segment 1104). EIH Report 10-001, 30 pp.

Guillen, G. and Wrast, J. 2010. Fishes as sources of E. coli bacteria in warm water streams. EIH Report 10-015, 81 pp.

Haskett, K. and Guillen, G. 2010. Population characteristics of diamondback terrapin at the Deer Island complex; Galveston Texas during 2008. EIH Report 10-017, 37 pp.

Wrast, J. and Guillen, G. 2010. Comprehensive recreational use attainability analysis of Armand Bayou above tidal (segment 1113A). EIH Report 10-002,  26 pp.

Guillen, G. and Wrast, J. 2009. Basic recreational use attainability analysis of Armand Bayou above tidal (segment 1113A). EIH Report 09-001, 18 pp.

Guillen, G. and Wrast, J. 2009. Central and southeast Texas recreational use attainability analyses project; Upper Oyster Creek (segment 1245) comprehensive RUAA. EIH Report 09-002, 44 pp.

Guillen, G., Wrast, J., and Ramirez, D. 2009. Trinity River basin BBEST instream flow study: ecological overlay for the Trinity River for the support of development of instream flow recommendations for environmental flows. EIH Report 09-003, 178 pp.

Stokes, B., Hall, S., and Biggs, H. 2007. Human dimensions research project: assessing the effects of community-based restoration on stewardship in communities. GBF Report, 28 pp.

Guillen, G. and Moore, S. 2006. Lake Madeline bacteria study final report. EIH Report 06-001, 29 pp.

Guillen, G., Wilcox, B., and Biggs, H. 2006. An evaluation of the hydrology of the Greens Bayou wetlands mitigation bank: subdivision A, phase 1 final report. EIH Report 06-002, 43 pp.

Gossett, L., Lester, J., and Gonzalez, L. 2004. Galveston Bay invasive species risk assessment. Final Report, 51 pp.

Gallaway, A. 2003. Coast country memories of Camp Wallace. EIH Report, 5 pp.