Locate the saved zip file in your device's default Downloads folder (file name begins with "changes"), and upload it to the Qualtrics survey linked below.
Note: If you have more points to add, do so now, and click Save Data again only after you are finished mapping all points. Then upload only the most recent zip file saved to your device to the survey.
*The data you submit will not be available to the public and will only be used for an interactive group discussion.
Please direct any questions to Brian Katz via email.
About this Map
Overview
This map was developed by researchers at Oregon State University and the Virginia Institute of Marine Science (VIMS) to visualize Chesapeake Bay shellfish production and areas hypothesized to be stressful to shellfish, analyzed by applying calcification responses of adult Eastern oysters (Crassostrea virginica) to a high-resolution model, based on the Regional Ocean Modeling System (ROMS), with 0.5 km2 spatial resolution and 3-hour temporal frequency between 1985-2020.
The purpose of this map is to identify where environmental conditions may have impacted shellfish aquaculture and restoration in Chesapeake Bay.
How to Use
Mapping activity
Your task is to mark locations where you observed changes regarding shellfish aquaculture or restoration.
Click the pin drop button in the upper left corner of the map, and mark a point on the map.
Follow the prompts to answer questions about the point you marked.
Repeat the previous two steps, recording as many points as you wish to share.
When you are finished marking all points, click Save Data at the top of the page.
Upload the zip file saved to your computer to this survey.
Data exploration
Click on the map layer icon in the upper right corner of the map to toggle the data displayed on the map.
Overlay layers
Production - Average pounds of oysters produced per lease, aggregated to water areas.
Productivity - Average pounds of oysters produced per acre per lease, aggregated to water areas.
Dissolution (hypothesized) - % hours in which water conditions may have favored shell dissolution instead of shell building, from 1985-2020.
Variability (hypothesized) - % hours in which adult oyster calcification rates may have been much lower than normal (≤3 Std Dev), from 1985-2020.
Bathymetric height - Modeled bathymetry of Chesapeake Bay.
Contributors: Emily Rivest, Pierre St-Laurent, Fei Da, Sara Blachman, Catherine Czajka, Karen Hudson, Bruce Vogt, Mark Brush, Marjorie Friedrichs, and David Wrathall.