Hilary Neckles, Ph.D. (Former Employee)
Science and Products
Filter Total Items: 39
Negative effects of commercial mussel dragging on eelgrass beds in Maine Negative effects of commercial mussel dragging on eelgrass beds in Maine
A study by the US Geological Survey, the University of New Hampshire, and the Maine Department of Marine Resources showed that commercial mussel dragging poses a severe and long-lasting threat to eelgrass (Zostera marina). Dragging can damage large areas, with individual drag scars up to 79 acres in size found in Maine eelgrass beds. Dragging activity uproots eelgrass plants completely...
Authors
Hilary A. Neckles, Frederick T. Short, Seth Barker, Blaine S. Kopp
Using hydrogeomorphic criteria to classify wetlands on Mt. Desert Island, Maine – Approach, classification system, and examples Using hydrogeomorphic criteria to classify wetlands on Mt. Desert Island, Maine – Approach, classification system, and examples
A wetland classification system was designed for Mt. Desert Island, Maine, to help categorize the large number of wetlands (over 1,200 mapped units) as an aid to understanding their hydrologic functions. The classification system, developed by the U.S. Geological Survey (USGS), in cooperation with the National Park Service, uses a modified hydrogeomorphic (HGM) approach, and assigns...
Authors
Martha G. Nielsen, Glenn R. Guntenspergen, Hilary A. Neckles
Disturbance of eelgrass Zostera marina by commercial mussel Mytilus edulis harvesting in Maine: Dragging impacts and habitat recovery Disturbance of eelgrass Zostera marina by commercial mussel Mytilus edulis harvesting in Maine: Dragging impacts and habitat recovery
We studied the effects of commercial harvest of blue mussels Mytilus edulis on eelgrass Zostera marina L. in Maquoit Bay, Maine, USA, at a hierarchy of scales. We used aerial photography, underwater video, and eelgrass population- and shoot-based measurements to quantify dragging impacts within 4 sites that had been disturbed at different times over an approximate 7 yr interval, and to...
Authors
Hilary A. Neckles, Frederick T. Short, Seth Barker, Blaine S. Kopp
Disturbance of eelgrass Zostera marina by commercial mussel Mytilus edulis harvesting in Maine: Dragging impacts and habitat recovery Disturbance of eelgrass Zostera marina by commercial mussel Mytilus edulis harvesting in Maine: Dragging impacts and habitat recovery
We studied the effects of commercial harvest of blue mussels Mytilus edulis on eelgrass Zostera marina L. in Maquoit Bay, Maine, USA, at a hierarchy of scales. We used aerial photography, underwater video, and eelgrass population- and shoot-based measurements to quantify dragging impacts within 4 sites that had been disturbed at different times over an approximate 7 yr interval, and to...
Authors
Hilary A. Neckles, Frederick T. Short, Seth Barker, Blaine S. Kopp
The effect of nitrogen loading on a brackish estuarine faunal community: A stable isotope approach The effect of nitrogen loading on a brackish estuarine faunal community: A stable isotope approach
Coastal ecosystems worldwide face increased nutrient enrichment from shoreline and watershed development and atmospheric pollution. We investigated the response of the faunal community of a small microtidal estuary dominated by Ruppia maritima (widgeon grass) in Maine, United States, to increased nitrogen loading using an in situ mesocosm enrichment experiment. Community response was
Authors
R.A. Keats, L.J. Osher, H.A. Neckles
Coastal ecosystems and resources framework for science Coastal ecosystems and resources framework for science
No abstract available.
Authors
John F. Bratton, Glenn Guntenspergen, B.E. Taggart, Douglas Wheeler, Lynn Bjorklund, Michael H. Bothner, Rama Kotra, Robert Lent, E.L. Mecray, Hilary Neckles, Barbara Poore, Stephen Rideout, Susan Russell-Robinson, P.K. Weiskel
Non-USGS Publications**
Moore, K. A., H. A. Neckles, and R. J. Orth.1996. Zostera marina (eelgrass) growth and survival along a gradient of nutrients and turbidity in the lower Chesapeake Bay. Marine Ecology Progress Series 142:247-259. DOI: 10.3354/meps142247
Neckles, H. A. (ed). 1994. Indicator development: seagrass monitoring and research in the Gulf of Mexico. EPA/620/R-94/029. 64pp.
Neckles, H. A., E. T. Koepfler, L. W. Haas, R. L. Wetzel, and R. J. Orth. 1994. Dynamics of epiphytic photoautotrophs and heterotrophs in Zostera marina L. (eelgrass) microcosms: responses to nutrient enrichment and grazing. Estuaries 17:597-605. DOI: 10.2307/1352407
Neckles, H. A., H. R. Murkin, and J. A. Cooper. 1990. Influences of seasonal flooding on macroinvertebrate abundance in wetland habitats. Freshwater Biology 23:311-322. DOI: 10.1111/j.1365-2427.1990.tb00274.x
Neckles, H. A. and R. L. Wetzel. 1989. Effects of forage harvest in seasonally flooded prairie marshes: simulation model experiments. pp. 975-990 in R. R. Sharitz and J. W. Gibbons (eds). Freshwater Wetlands and Wildlife. DOE Symposium Series No. 61, USDOE Office of Scientific and Technical Information, Oak Ridge, TN.
Wetzel, R. L. and H. A. Neckles. 1986. A model of Zostera marina L. photosynthesis and growth: simulated effects of selected physical-chemical variables and biological interactions. Aquatic Botany 26:307-323. DOI: 10.1007/BF00317683
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
Filter Total Items: 39
Negative effects of commercial mussel dragging on eelgrass beds in Maine Negative effects of commercial mussel dragging on eelgrass beds in Maine
A study by the US Geological Survey, the University of New Hampshire, and the Maine Department of Marine Resources showed that commercial mussel dragging poses a severe and long-lasting threat to eelgrass (Zostera marina). Dragging can damage large areas, with individual drag scars up to 79 acres in size found in Maine eelgrass beds. Dragging activity uproots eelgrass plants completely...
Authors
Hilary A. Neckles, Frederick T. Short, Seth Barker, Blaine S. Kopp
Using hydrogeomorphic criteria to classify wetlands on Mt. Desert Island, Maine – Approach, classification system, and examples Using hydrogeomorphic criteria to classify wetlands on Mt. Desert Island, Maine – Approach, classification system, and examples
A wetland classification system was designed for Mt. Desert Island, Maine, to help categorize the large number of wetlands (over 1,200 mapped units) as an aid to understanding their hydrologic functions. The classification system, developed by the U.S. Geological Survey (USGS), in cooperation with the National Park Service, uses a modified hydrogeomorphic (HGM) approach, and assigns...
Authors
Martha G. Nielsen, Glenn R. Guntenspergen, Hilary A. Neckles
Disturbance of eelgrass Zostera marina by commercial mussel Mytilus edulis harvesting in Maine: Dragging impacts and habitat recovery Disturbance of eelgrass Zostera marina by commercial mussel Mytilus edulis harvesting in Maine: Dragging impacts and habitat recovery
We studied the effects of commercial harvest of blue mussels Mytilus edulis on eelgrass Zostera marina L. in Maquoit Bay, Maine, USA, at a hierarchy of scales. We used aerial photography, underwater video, and eelgrass population- and shoot-based measurements to quantify dragging impacts within 4 sites that had been disturbed at different times over an approximate 7 yr interval, and to...
Authors
Hilary A. Neckles, Frederick T. Short, Seth Barker, Blaine S. Kopp
Disturbance of eelgrass Zostera marina by commercial mussel Mytilus edulis harvesting in Maine: Dragging impacts and habitat recovery Disturbance of eelgrass Zostera marina by commercial mussel Mytilus edulis harvesting in Maine: Dragging impacts and habitat recovery
We studied the effects of commercial harvest of blue mussels Mytilus edulis on eelgrass Zostera marina L. in Maquoit Bay, Maine, USA, at a hierarchy of scales. We used aerial photography, underwater video, and eelgrass population- and shoot-based measurements to quantify dragging impacts within 4 sites that had been disturbed at different times over an approximate 7 yr interval, and to...
Authors
Hilary A. Neckles, Frederick T. Short, Seth Barker, Blaine S. Kopp
The effect of nitrogen loading on a brackish estuarine faunal community: A stable isotope approach The effect of nitrogen loading on a brackish estuarine faunal community: A stable isotope approach
Coastal ecosystems worldwide face increased nutrient enrichment from shoreline and watershed development and atmospheric pollution. We investigated the response of the faunal community of a small microtidal estuary dominated by Ruppia maritima (widgeon grass) in Maine, United States, to increased nitrogen loading using an in situ mesocosm enrichment experiment. Community response was
Authors
R.A. Keats, L.J. Osher, H.A. Neckles
Coastal ecosystems and resources framework for science Coastal ecosystems and resources framework for science
No abstract available.
Authors
John F. Bratton, Glenn Guntenspergen, B.E. Taggart, Douglas Wheeler, Lynn Bjorklund, Michael H. Bothner, Rama Kotra, Robert Lent, E.L. Mecray, Hilary Neckles, Barbara Poore, Stephen Rideout, Susan Russell-Robinson, P.K. Weiskel
Non-USGS Publications**
Moore, K. A., H. A. Neckles, and R. J. Orth.1996. Zostera marina (eelgrass) growth and survival along a gradient of nutrients and turbidity in the lower Chesapeake Bay. Marine Ecology Progress Series 142:247-259. DOI: 10.3354/meps142247
Neckles, H. A. (ed). 1994. Indicator development: seagrass monitoring and research in the Gulf of Mexico. EPA/620/R-94/029. 64pp.
Neckles, H. A., E. T. Koepfler, L. W. Haas, R. L. Wetzel, and R. J. Orth. 1994. Dynamics of epiphytic photoautotrophs and heterotrophs in Zostera marina L. (eelgrass) microcosms: responses to nutrient enrichment and grazing. Estuaries 17:597-605. DOI: 10.2307/1352407
Neckles, H. A., H. R. Murkin, and J. A. Cooper. 1990. Influences of seasonal flooding on macroinvertebrate abundance in wetland habitats. Freshwater Biology 23:311-322. DOI: 10.1111/j.1365-2427.1990.tb00274.x
Neckles, H. A. and R. L. Wetzel. 1989. Effects of forage harvest in seasonally flooded prairie marshes: simulation model experiments. pp. 975-990 in R. R. Sharitz and J. W. Gibbons (eds). Freshwater Wetlands and Wildlife. DOE Symposium Series No. 61, USDOE Office of Scientific and Technical Information, Oak Ridge, TN.
Wetzel, R. L. and H. A. Neckles. 1986. A model of Zostera marina L. photosynthesis and growth: simulated effects of selected physical-chemical variables and biological interactions. Aquatic Botany 26:307-323. DOI: 10.1007/BF00317683
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.