64 Matching Results

Search Results

Advanced search parameters have been applied.
in subjects: "Benthos."  
Results: 1 - 24 next
open access

Aquatic Disposal Field Investigations, Eatons Neck Disposal Site, Long Island Sound: Appendix F

Description: The following report presents the results of a investigation to determine the baseline conditions of the phytoplankton population at the disposal site for future comparison with similar data collected after the disposal of dredged material.
Date: September 1977
Creator: Nuzzi, Robert
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Aquatic Disposal Field Investigations, Eatons Neck Disposal Site, Long Island Sound: Appendix C

Description: Appendix containing test results of core and grab sample data from Eatons Neck. It accompanies a report on the investigation of the hydraulic regime and the physical characteristics of bottom sedimentation as part of a study to investigate the effects of disposal sites on organisms and the quality of surrounding water.
Date: September 1977
Creator: Bokuniewicz, Henry J.; Dowling, Michael; Gebert, Jeffrey A.; Gordon, Robert; Kaminsky, Peter; Pilbeam, Carol et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Aquatic Disposal Field Investigations, Eatons Neck Disposal Site, Long Island Sound: Appendix B

Description: Appendix containing black and white reflection-profile photos. It accompanies a report on the investigation of the hydraulic regime and the physical characteristics of bottom sedimentation as part of a study to investigate the effects of disposal sites on organisms and the quality of surrounding water.
Date: September 1977
Creator: Bokuniewicz, Henry J.; Dowling, Michael; Gebert, Jeffrey A.; Gordon, Robert; Kaminsky, Peter; Pilbeam, Carol et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Aquatic Disposal Field Investigations, Eatons Neck Disposal Site, Long Island Sound: Appendix D

Description: Appendix containing profile camera photos to accompany a report on the investigation of the hydraulic regime and the physical characteristics of bottom sedimentation as part of a study to investigate the effects of disposal sites on organisms and the quality of surrounding water.
Date: September 1977
Creator: Bokuniewicz, Henry J.; Dowling, Michael; Gebert, Jeffrey A.; Gordon, Robert; Kaminsky, Peter; Pilbeam, Carol et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Aquatic Disposal Field Investigations, Eatons Neck Disposal Site, Long Island Sound: Appendix A

Description: Appendix containing navigation calculations and the the design specifications for buoys to be used in experimental observations at Eatons Neck. It accompanies a report on the investigation of the hydraulic regime and the physical characteristics of bottom sedimentation as part of a study to investigate the effects of disposal sites on organisms and the quality of surrounding water.
Date: September 1977
Creator: Bokuniewicz, Henry J.; Dowling, Michael; Gebert, Jeffrey A.; Gordon, Robert; Kaminsky, Peter; Pilbeam, Carol et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Aquatic Disposal Field Investigations, Eatons Neck Disposal Site, Long Island Sound: Appendix E

Description: Appendix containing black and white photos of flora and fauna at the bottom of Eatons Neck site to accompany a report on the investigation of the hydraulic regime and the physical characteristics of bottom sedimentation as part of a study to investigate the effects of disposal sites on organisms and the quality of surrounding water.
Date: September 1977
Creator: Bokuniewicz, Henry J.; Dowling, Michael; Gebert, Jeffrey A.; Gordon, Robert; Kaminsky, Peter; Pilbeam, Carol et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Aquatic Disposal Field Investigations, Eatons Neck Disposal Site, Long Island Sound: Appendix A

Description: This report follows the study of the sedimentary and hydraulic processes in Long Island Sound near Green Ledge, Connecticut, and Eaton's Neck, New York with the intention of investigating was to evaluate the effects of aquatic disposal of dredged material on organisms and water quality, including the significance of physical, chemical, and biological factors that influence the rate of disposal site recolonization by benthic animals.
Date: September 1977
Creator: Bokuniewicz, Henry J.; Dowling, Michael; Gebert, Jeffrey A.; Gordon, Robert; Kaminsky, Peter; Pilbeam, Carol et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Vertical Stratification of the Macrobenthos in the Brazos River, Texas

Description: Quantification of stream macrobenthos populations has remained a perplexing problem in rivbrine ecology, despite numerous attempts at improvement. This is in part due to well documented variations in chemical and physical parameters locally and geographically, and resultant adapted macrobenthos populations. Southwood (1968) and Hynes (1970a) have reviewed the various sampling techniques developed'for the census of lotic macrobenthos populations. Needham and Usinger (1956), Chutter (1969), and o… more
Date: December 1973
Creator: Poole, Walton Charles
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

The Influence of deep-sea bed CO2 sequestration on small metazoan (meiofaunal) community structure and function

Description: We conducted a series of experiments in Monterey Submarine Canyon to examine potential ecological impacts of deep-ocean CO2 sequestration. Our focus was on responses of meiofaunal invertebrates (< 1 mm body length) living within the sediment at depths ranging between 3000-3600 m. Our particular emphasis was on harpacticoid copepods and nematodes. In the first phase of our DOE funding, we reported findings that suggest substantial (~80%) mortality to harpacticoid copepods. In the second phase of… more
Date: February 17, 2013
Creator: Carman, Kevin R.; Fleeger, John W. & Thistle, David
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Whidbey Island Intertidal and Shallow Subtidal Benthos

Description: The following report discusses results from two years of sampling the flora and fauna in three habitats on the west coast of Whidbey Island. Included is an analysis of species richness, diversity, community structure, seasonal changes and dominant forms.
Date: November 1980
Creator: Webber, Herbert H.
Item Type: Refine your search to only Report
Location: None
Partner: UNT Libraries Government Documents Department

[Whidbey Island Intertidal and Shallow Subtidal Benthos: Appendix 1]

Description: Tables listing, for each site, season stratum and year, "species found, the mean count and standard deviation per 0.25m², and the mean weight and standard deviation per 0.25m². Also included is a list of dominant species, the year in which they were dominant, the total number of individuals, the total biomass in each year, and the species diversity index." (p. 1)
Date: November 1980
Creator: Webber, Herbert H.
Item Type: Refine your search to only Dataset
Location: None
Partner: UNT Libraries Government Documents Department
open access

Comparative Ecology of Benthic Communities in Natural and Regulated Areas of the Flathead and Kootenai Rivers, Montana

Description: A comparative study was made of environmental variables and the density, biomass, diversity, and species composition of macroinvertebrates in areas downstream from a dam with a hypolimnetic release (Hungry Horse Dam on the Flathead River) and a dam with a selective withdrawal system (Libby Dam on the Kootenai River). A major objective of this study was to examine the response of macroinvertebrate communities to defined environmental gradients in temperature, flow, substrate, and food-related va… more
Date: May 1984
Creator: Perry, Sue A.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Phytoplankton excretion revisited: healthy cells may not do it, but how many cells are healthy? Final report

Description: The goal of this project was to develop fluorescent probes that could be used on a individual cell basis to determine the physiological condition of phytoplankton cells in the field. Progress gained and problems encounter are described.
Date: August 6, 1996
Creator: Wood, A.M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

First report on the Oak Ridge K-25 Site Biological Monitoring and Abatement Program for Mitchell Branch

Description: A modified National Pollutant Discharge Elimination System permit was issued to the Oak Ridge Gaseous Diffusion Plant (now referred to as the Oak Ridge K-25 Site) on September 11, 1986. The Oak Ridge K-25 Site is a former uranium-enrichment production facility, which is currently managed by Martin Marietta Energy Systems, Inc. for the US Department of Energy. As required in Part III (L) of that permit, a plan for the biological monitoring of Mitchell Branch (K-1700 stream) was prepared and subm… more
Date: August 1, 1993
Creator: Smith, J. G.; Adams, S. M.; Kszos, L. A.; Ryon, M. G.; Southworth, G. R. & Loar, J. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Report on the Biological Monitoring Program at Paducah Gaseous Diffusion Plant December 1992--December 1993

Description: On September 24, 1987, the Commonwealth of Kentucky Natural Resources and Environmental Protection Cabinet issued an Agreed Order that required the development of a Biological Monitoring Program (BMP) for the Paducah Gaseous Diffusion Plant (PGDP). The goals of BMP are to demonstrate that the effluent limitations established for PGDP protect and maintain the use of Little Bayou and Big Bayou creeks for growth and propagation of fish and other aquatic life, characterize potential health and envi… more
Date: June 1, 1995
Creator: Kszos, L. A.; Hinzman, R. L.; Peterson, M. J.; Ryon, M. G.; Smith, J. G. & Southworth, G. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Impact of environmental dewatering of Lower Granite and Little Goose reservoirs on benthic invertebrates and macrophytes

Description: An investigation into the effects of dewatering on the benthic fauna in Lower Granite and Little Goose reservoirs was undertaken. Benthos in both the soft bottom regions of the reservoirs as well as those inhabiting the rock rip-rap along the shoreline were studied. These organisms provide an important food resource for both migrating salmonids and resident fish species; thus, impacts of contemplated dewatering schemes require evaluation. The results of these studies indicate that there were no… more
Date: September 1, 1993
Creator: Cushing, C. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Report on the biological monitoring program at Paducah Gaseous Diffusion Plant, January--December 1997

Description: On September 24, 1987, the Commonwealth of Kentucky Natural Resources and Environmental Protection Cabinet issued an Agreed Order that required the development of a Biological Monitoring Program (BMP) for the Paducah Gaseous Diffusion Plant (PGDP). A plan for the biological monitoring of the receiving streams was implemented in 1987 and consisted of ecological surveys, toxicity monitoring of effluents and receiving streams, evaluation of bioaccumulation of trace contaminants in biota, and suppl… more
Date: March 1, 1998
Creator: Kszos, L. A.; Peterson, M. J.; Ryon, M. G.; Smith, J. G. & Southworth, G. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Evaluation of Dredged Material Proposed for Ocean Disposal From Arthur Kill Project Area, New York

Description: The objective of the bioassay reevaluation of Arthur Kill Federal Project was to reperform toxicity testing on proposed dredged material following current ammonia reduction protocols. Arthur Kill was one of four waterways sampled and evaluated for dredging and disposal in April 1993. Sediment samples were recollected from the Arthur Kill Project areas in August 1995. Tests and analyses were conducted according to the manual developed by the USACE and the U.S. Environmental Protection Agency (EP… more
Date: January 1, 1997
Creator: Gruendell, B. D.; Barrows, E. S. & Borde, A. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Evaluation of Dredged Material Proposed for Ocean Disposal From Hackensack River Project Area, New York

Description: The objective of the bioassay reevaluation of the Hackensack River Federal Project was to reperform toxicity testing on proposed dredged material with current ammonia reduction protocols. Hackensack River was one of four waterways sampled and evaluated for dredging and disposal in April 1993. Sediment samples were re-collected from the Hackensack River Project area in August 1995. Tests and analyses were conducted according to the manual developed by the USACE and the U.S. Environmental Protect… more
Date: January 1, 1997
Creator: Gruendell, B. D.; Barrows, E. S. & Borde, A. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Bottom boundary layer measurements in OMP. Final report

Description: The main role of the Benthic Acoustic Stress Sensor (BASS) tripods within the Ocean Margins Program experiments was to detect and quantify organic carbon rich particle transport off the shelf. This requires measures of the turbulent boundary layer flow and bed stress, the physical forcing of the particle transport, as well as the concentration and type of particles which are being transported. The BASS tripods were deployed at sites 17 and 26. Data from site 26 were recovered spanning three per… more
Date: November 1, 1998
Creator: Gross, T. F. & Williams, A. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Production and Energy Metabolism in Three Benthic Insect Populations in a Small North Central Texas Pond

Description: Annual energy budgets of dominant benthic macro-invertebrates were examined during November 1973 to October 1974 from the benthos of a small pond ecosystem in north-central Texas. Estimates of annual secondary production (Hynes and Coleman 1968) were Procladius s. (Diptera, Chironimidae), 2.4 g m^-2 y^-1 (13 kcal m^-2 y^-1 ); Tendipes decorus (Diptera, Chironomidae), 6.0 g m^-2 y^-1 (40 kcal m^-2 y^-1 ); Brachycercus sp. (Ephemeroptera, Caenidae), 1.9 g m^-2 y^-1 (11 kcal m^-2 y^-1). Energy met… more
Date: May 1978
Creator: Benson, Daniel J.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Monitoring and evaluation of aquatic resource health and use suitability in Tennessee Valley Authority reservoirs

Description: TVA initiated a Reservoir Monitoring Program in 1990 with two objectives -- to evaluate the health of the reservoir ecosystem and to examine how well each reservoir meets the swimmable and fishable goals of the Clean Water Act. In 1990 reservoir health was evaluated subjectively using a weight-of-evidence approach (a reservoir was deemed healthy if most of the physical, chemical, and biological monitoring components appeared healthy). In the second year (1991) a more objective, quantitative app… more
Date: June 1, 1993
Creator: Dycus, D. L. & Meinert, D. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
Back to Top of Screen