Simulating environmental effects on brown shrimp production in the northern Gulf of Mexico

Metadata Updated: February 8, 2018

Brown shrimp (Farfantepenaeus aztecus) are a commercially important fishery species of the northern Gulf of Mexico. Young shrimp settle in estuarine salt marsh habitats during the juvenile phase of their life history, and processes that occur during their residency affect growth, survival, and recruitment of sub-adults to the fishery. We developed an agent based model that simulates the cumulative effects of temperature, salinity, and access to emergent marsh vegetation on juvenile brown shrimp growth and survival. Our model is spatially articulate, with three habitat types and three salinity zones it functions on an hourly time step to track growth and survival of shrimp super-individuals from recruitment into the shallow nursery habitats at 10 mm total length until they reach 70 mm and move into deeper bay water. We have compared our modeled shrimp production with various abundance and biomass data from fishery independent surveys. Preliminary analysis shows similarities in seasonal patterns, but annual variability in resource survey data appears higher than our modeled estimates. We are continuing to explore larval recruitment patterns and trophic interactions as possible interacting factors. Ultimately, we hope to use inter-annual variability in production estimates to reduce uncertainty in the current stock assessment model used by the US National Marine Fisheries Service.

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Metadata Date July 20, 2017
Metadata Created Date March 28, 2016
Metadata Updated Date February 8, 2018
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Harvested from NOAA CSW Harvest Source

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Resource Type Dataset
Metadata Date July 20, 2017
Metadata Created Date March 28, 2016
Metadata Updated Date February 8, 2018
Reference Date(s) (publication)
Responsible Party (Point of Contact, Custodian)
Contact Email
Access Constraints Access Constraints: N/A | Use Constraints: Disclaimer - While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
Bbox East Long -94.41891
Bbox North Lat 29.589704
Bbox South Lat 29.180167
Bbox West Long -95.09903
Coupled Resource
Frequency Of Update
Guid gov.noaa.nmfs.inport:30671
Harvest Object Id 835a0f97-ac49-4822-9103-d09fd767c906
Harvest Source Id 2aed8e29-fc5b-4cde-aa66-fb1118fd705e
Harvest Source Title NOAA CSW Harvest Source
Metadata Language eng
Metadata Type geospatial
Progress onGoing
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True

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