APNEP_Ecological_Flows_Report_FINAL_DRAFT_82418
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APNEP_Ecological_Flows_Report_FINAL_DRAFT_82418
DRAFTExisting Data for Evaluating Coastal Plain Ecological Flows in the Albemarle-Pamlico Estuary RegionBy Michael O'Driscoll Ryan Bond5, Isabel Hillm APNEP_Ecological_Flows_Report_FINAL_DRAFT_82418man*, Caitlin SkibieP, Charles Humphrey*, and Christa Sanderford*‘Department of Coastal Studies, East Carolina University Nicholas School of the Environment, Duke University 'Department of Geological Sciences. East Carolina University ■*Coastal Resources Management Program. East Carolina University APNEP_Ecological_Flows_Report_FINAL_DRAFT_82418•’Environmental Health Sciences Program, East Carolina UniversityDRAFT submitted August 23, 2018DukeMCHCCAS SCHOOL OF TWENVIRONMENTmi East Carolina UnAPNEP_Ecological_Flows_Report_FINAL_DRAFT_82418
iversity.DRAFTExecutive SummaryTins study focused on the status of available flow and ecological flow-related data for the Albemarle-Pamlico drainage DRAFTExisting Data for Evaluating Coastal Plain Ecological Flows in the Albemarle-Pamlico Estuary RegionBy Michael O'Driscoll Ryan Bond5, Isabel Hillm APNEP_Ecological_Flows_Report_FINAL_DRAFT_82418evapotranspkation. salinity, water use. and ecological response data. Gaps in water use data may influence the accuracy of water budgets for watersheds in the region. In general, there IS a lack of publicly-available, fine-scale water withdrawal data sets that can be used to assess the temporal vari APNEP_Ecological_Flows_Report_FINAL_DRAFT_82418ations in water usage. This decreases the capability to evaluate how antlnopogenic changes such as groundwater piunping and siuTace water withdrawalsAPNEP_Ecological_Flows_Report_FINAL_DRAFT_82418
might impact low-flow in streams, particularly during high demand siumner months. Based on the surface water, groundwater, meteorological, and water uDRAFTExisting Data for Evaluating Coastal Plain Ecological Flows in the Albemarle-Pamlico Estuary RegionBy Michael O'Driscoll Ryan Bond5, Isabel Hillm APNEP_Ecological_Flows_Report_FINAL_DRAFT_82418A water budget for a pilot watershed would be constructed with publicly available data, while at the same time the watershed would be intensively monitored to gam a better understanding of how accurate the water budget using publicly available data predicted the flux of water. It is hypothesized tha APNEP_Ecological_Flows_Report_FINAL_DRAFT_82418t improvements in Coastal Plain water budgets could be made if georeferenced data could be collected monthly and verified with water meters throughoutAPNEP_Ecological_Flows_Report_FINAL_DRAFT_82418
the pilot study watershed. Since the Central Coastal Plain Capacity Use Area (CCPCƯA) falls within the Albemarle-Pamlico Basin, a study watershed witDRAFTExisting Data for Evaluating Coastal Plain Ecological Flows in the Albemarle-Pamlico Estuary RegionBy Michael O'Driscoll Ryan Bond5, Isabel Hillm APNEP_Ecological_Flows_Report_FINAL_DRAFT_82418-term flowrecords. Contentnea Creek, may be a good candidate for further study. In addition, the Little River shows evidence of declining low-flows and further study could help to explain why. The Trent River station near Trenton is one of the limited number of discharge stations adjacent to the Out APNEP_Ecological_Flows_Report_FINAL_DRAFT_82418er Coastal Plain that has a long-term record, this watershed would also be a good candidate for coastal ecological flow research.These and other potenAPNEP_Ecological_Flows_Report_FINAL_DRAFT_82418
tial studies could focus on answering several research questions:•What are the most accurate and least accurate water flux and use estimates and how cDRAFTExisting Data for Evaluating Coastal Plain Ecological Flows in the Albemarle-Pamlico Estuary RegionBy Michael O'Driscoll Ryan Bond5, Isabel Hillm APNEP_Ecological_Flows_Report_FINAL_DRAFT_82418ws protective of ecological integrity? Wliat threshold of water use would adversely affect streamflow and bl ecological integrity?•How will climate change, withdrawals, and land-use change affect low flows in the future?•What are the general stressor-response relationships between flow alteration an APNEP_Ecological_Flows_Report_FINAL_DRAFT_82418d ecological health?•Based on pre-existing data, can the stressor-response relationships be adequately evaluated and if not. what types of data are neAPNEP_Ecological_Flows_Report_FINAL_DRAFT_82418
eded in the future?•What are barriers to understanding the dominant influences on ecological flows at the watershed-scale?1DRAFTAlthough there is a daDRAFTExisting Data for Evaluating Coastal Plain Ecological Flows in the Albemarle-Pamlico Estuary RegionBy Michael O'Driscoll Ryan Bond5, Isabel Hillm APNEP_Ecological_Flows_Report_FINAL_DRAFT_82418ding and partnerships to include watershed-based ecological flows research focused on the ecological responses to low-flows and variability in pulses, flooding, and salinity. Tile earlier work by NC DEQ (2013) also concluded that more information is needed on the biological response to streamflow re APNEP_Ecological_Flows_Report_FINAL_DRAFT_82418ductions, particularly for headwaters and coastal plain streams, but also for large rivers. Since climate change and land-use change may affect futureAPNEP_Ecological_Flows_Report_FINAL_DRAFT_82418
river flows in the region, work focused on potential changes to flows, salinity, and ecological responses associated with future climate and land-useDRAFTExisting Data for Evaluating Coastal Plain Ecological Flows in the Albemarle-Pamlico Estuary RegionBy Michael O'Driscoll Ryan Bond5, Isabel Hillm APNEP_Ecological_Flows_Report_FINAL_DRAFT_82418cal flows in rhe region would be to perform ecological flow analysis on the long-term discharge records along unregulated river reaches in the Albemarle-Pamlico drainage basin. We recommend dull these analyses be performed on the discharge records ar the ƯSGS stations with long-term data (1--30 year APNEP_Ecological_Flows_Report_FINAL_DRAFT_82418s). We recommend that the flow analyses fu st lie performed using rhe Indicators of Hydrologic Alteration software and on streams categorized based onAPNEP_Ecological_Flows_Report_FINAL_DRAFT_82418
the initial classification system (Coastal Piaui tidal. Coastal Plain low-slope. Coastal Plain medium-slope, and Piedmont) suggested by the Coastal EDRAFTExisting Data for Evaluating Coastal Plain Ecological Flows in the Albemarle-Pamlico Estuary RegionBy Michael O'Driscoll Ryan Bond5, Isabel Hillm APNEP_Ecological_Flows_Report_FINAL_DRAFT_82418metrics can be compared with diversity indices for fish or macroinvertebrates.Based on the number of agencies collecting water use and wastewater discharge data, it would be worthwhile to bring together water use and water flux expens from ƯSGS. NC DEQ. NC Dept, of Agricultrue and Consumer Sendees. APNEP_Ecological_Flows_Report_FINAL_DRAFT_82418NC Climate office. NC Dept, of Health and Human Services, water utilities, and other stakeholders with the goal of developing a comprehensive water acAPNEP_Ecological_Flows_Report_FINAL_DRAFT_82418
counting system for the legion An interagency plan is needed to addiess the challenges, costs, and other issues associated with coordinating a more coDRAFTExisting Data for Evaluating Coastal Plain Ecological Flows in the Albemarle-Pamlico Estuary RegionBy Michael O'Driscoll Ryan Bond5, Isabel Hillm APNEP_Ecological_Flows_Report_FINAL_DRAFT_82418states, numerous states in the southeast have data and experience developing ecological flow criteria. Many suggest that adaptive management with stakeholder involvement is an important component of ecological flow management. This kind of approach in which federal, state, and local agencies work in APNEP_Ecological_Flows_Report_FINAL_DRAFT_82418 cooperation with stakeholders to achieve ecological flow management objectives may be the most likely to succeed. 111 most stales, die water or envirAPNEP_Ecological_Flows_Report_FINAL_DRAFT_82418
onmental agency in the stale takes the lead, ill this case (hat would be the NC DEQ. Moving forward, APNEP and DEQ could collaboratively develop a proDRAFTExisting Data for Evaluating Coastal Plain Ecological Flows in the Albemarle-Pamlico Estuary RegionBy Michael O'Driscoll Ryan Bond5, Isabel Hillm APNEP_Ecological_Flows_Report_FINAL_DRAFT_82418gical models for each of NC’s 17 river basins to predict the places, limes, and frequencies al which ecological flows may be adversely affected in North Carolina (NC DLQ 2013). Future work on ecological flows in the Albemarle-Pamlico drainage basin should aim to complement the mandated efforts by NC APNEP_Ecological_Flows_Report_FINAL_DRAFT_82418 DEQ.2DRAFTTable of ContentsIntroduction4Low Flow Conditions and Then Significance to Ecological Flows4Available Data to Assist with Evaluating CoastaAPNEP_Ecological_Flows_Report_FINAL_DRAFT_82418
l Plain Ecological Flows in the Albemarle PamlicoDrainage Basin6Surface Water Discharge Data6DRAFTExisting Data for Evaluating Coastal Plain Ecological Flows in the Albemarle-Pamlico Estuary RegionBy Michael O'Driscoll Ryan Bond5, Isabel HillmDRAFTExisting Data for Evaluating Coastal Plain Ecological Flows in the Albemarle-Pamlico Estuary RegionBy Michael O'Driscoll Ryan Bond5, Isabel HillmGọi ngay
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