Model Archive and Results for Unsteady Simulations of Egg and Larval Drift in the Maumee River, Ohio

This page contains results from 304 Fluvial Egg Drift Simulator (FluEgg; version 4.1.1) simulations of invasive carp eggs and larvae in the Maumee River, Ohio, under unsteady flow conditions. FluEgg models the drift and dispersion of eggs and larvae in fluvial environments. The eggs develop, changing in size and density, and eventually hatch into larvae. The simulations end when the larvae reach the gas bladder inflation stage or when the set duration of the simulation is exceeded (whichever comes first).
FluEgg requires the user to provide hydraulic data to drive the drift model. The hydraulic inputs for these FluEgg simulations were generated using a one-dimensional unsteady hydraulic model of the Maumee River (see the other child items of this data release for more information about the hydraulic model) for four unsteady flow periods in which grass carp eggs or larvae were collected on the Maumee River: July 11-14, 2017, June 11-14, 2018, June 22-27, 2018, and May 28-30, 2019. The upstream end of the model domain (0.0 river kilometers) is located 280 meters downstream from Independence Dam near Defiance, Ohio, and the downstream end of the model domain is the mouth of the Maumee River at Lake Erie near NOAA tidal gage 9063085 (95.6 river kilometers). In FluEgg, the hydraulic conditions at the downstream end of the model domain extend infinitely downstream to allow eggs and larvae to drift beyond the model domain. Therefore, any drift distances greater than 95.6 kilometers should be excluded from further analysis of these data.
FluEgg simulations were first run in reverse using the reverse time particle tracking algorithm (RTPT) in FluEgg using the time, location, and developmental stage of 73 captured grass carp eggs and larvae as input. Accounting for replicates, a total of 28 FluEgg simulations were run in reverse for a single invasive carp species (grass carp). Because RTPT simulations result in distributions of potential spawning areas, a series of 276 iterative forward FluEgg simulations were run to further refine the likely grass carp spawning area for the 28 groups of eggs/larvae. Each simulation included 10,000 grass carp eggs, which were assumed to have been spawned at the water surface and at the midpoint of the channel.
This page includes:
--MaumeeRiver_unsteady_fluegg_reverse_sim_list.csv: comma-separated values (csv) file listing the simulation parameters used for 28 unsteady FluEgg RTPT simulations (reverse) 
--MaumeeRiver_unsteady_fluegg_forward_sim_list.csv: comma-separated values (csv) file listing the simulation parameters used for 276 unsteady FluEgg simulations (forward) 
--MaumeeRiver_centerline.KML:  KML file of the Maumee River centerline that represents the model domain
--MaumeeRiver_unsteady_fluegg_reverse_output.zip: ZIP file containing Hierarchical Data Format 5 (HDF5) results files from 28 reverse FluEgg simulations with the naming convention Maumee_RTPT_RunX_10Kgc_TIMESTEPs.h5, where RunX is the run number (1 to 28) and TIMESTEPs is the simulation timestep in seconds. Each HDF5 file has a corresponding set of simulation parameters given in MaumeeRiver_unsteady_fluegg_reverse_sim_list.csv. 
--MaumeeRiver_unsteady_fluegg_forward_output.zip: ZIP file containing Hierarchical Data Format 5 (HDF5) results files from 276 forward FluEgg simulations with the naming convention Maumee_FRunIteration_10Kgc_TIMESTEPs.h5, where FRunIteration is the forward simulation identifier (run number and iteration; F1a, F1b, F1c) and TIMESTEPs is the simulation timestep in seconds. Each HDF5 file has a corresponding set of simulation parameters given in MaumeeRiver_unsteady_fluegg_forward_sim_list.csv.

Tags: biota, invasive-species, lake-erie, mathematical-modeling, maumee, ohio, streamflow, surface-water-non-marine, usgs-618c3471d34ec04fc9c8637f
Organization: Department of the Interior