4 Aquaculture
Description: Aquaculture indicators
Found in: State of the Ecosystem - Gulf of Maine & Georges Bank (2017, 2018 (Different Methods), 2021+), State of the Ecosystem - Mid-Atlantic (2017, 2018, 2019)
Indicator category: Synthesis of published information
Contributor(s): Christopher Schillaci, Maine DMR, NH DES, MA DMF, RI CRMC, MD DNR
Data steward: Chris Schillaci christopher.schillaci@noaa.gov
Point of contact: Chris Schillaci christopher.schillaci@noaa.gov
Public availability statement: Source data are publicly available
4.1 Methods
4.1.2 Data Extraction/Analysis
Production described as the number of oysters harvested is collected by individual states. This means that time series maybe vary by state. A table of start dates are shown below. Individual state information is available at the above links.
Only the New England State of the Ecosystem includes aquaculture information as there are reporting issues and many states are do not have available data in the Mid-Atlantic States.
| State | Timeseries Start Year |
|---|---|
| Maine | 2009 |
| New Hampshire | 2013 |
| Massachusetts | 2009 |
| Rhode Island | 2009 |
| New Jersey | 2012* |
| Maryland | 2012 |
| Virginia | 2009 |
* only includes data through 2016.
No further analysis was conducted on these.
4.1.3 Data processing
Aquaculture data were formatted for inclusion in the ecodata R package using the code found here.
4.2 Methods 2017-2019
Aquaculture data included in the State of the Ecosystem (SOE) report were time series of number of oysters sold in Virginia, Maryland, and New Jersey.
4.2.1 Data sources
Virginia oyster harvest data are collected from mail and internet-based surveys of active oyster aquaculture operations on both sides of the Chesapeake Bay, which are then synthesized in an annual report (Hudson 2017). In Maryland, shellfish aquaculturists are required to report their monthly harvests to the Maryland Department of Natural Resources (MD-DNR). The MD-DNR then aggregates the harvest data for release in the Maryland Aquaculture Coordinating Council Annual Report (ACC 2017), from which data were collected. Similar to Virginia, New Jersey releases annual reports synthesizing electronic survey results from lease-holding shellfish growers. Data from New Jersey reflects cage reared oysters grown from hatchery seed (Calvo 2017).
4.2.2 Data extraction
Data were collected directly from state aquaculture reports. Oyster harvest data in MD was reported in bushels which were then converted to individual oysters by an estimate of 300 oysters bushel\(^{-1}\). View processing code for this indicator here.
4.2.3 Data analysis
No data analyses occurred for this indicator.
catalog link https://noaa-edab.github.io/catalog/aquaculture.html