Small-Scale Nekton Density and Growth Patterns Across a Saltmarsh Landscape in Barataria Bay, Louisiana
Southeast Fisheries Science Center
Document
(DOC)
| ID: 56586
| Published / External
Created: 2019-06-03
|
Last Modified: 2022-08-09
Data Set (DS) | ID: 30692
ID: 56586
Document (DOC)
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* » Title | Small-Scale Nekton Density and Growth Patterns Across a Saltmarsh Landscape in Barataria Bay, Louisiana |
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* Status | Completed |
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• Publication Date | 2016-02-27 |
* » Abstract |
Nekton on the northern Gulf of Mexico depend on estuarine nursery areas, but patterns of habitat use and the underlying processes that drive these patterns are not fully understood. We examined small-scale (1–50 m) patterns of habitat use in Barataria Bay by collecting nekton samples between 2002 and 2006 with a 1-m2 drop sampler. Habitat-specific densities were estimated for six habitat types at various distances from the shoreline in marsh (Marsh1M = 1 m and Marsh3M = 3 m) and over shallow nonvegetated bottom, SNB (SNB1M = 1 m, SNB5M = 5 m, SNB20M = 20 m, and SNB50M = 50 m). Habitat-specific growth rates also were estimated for brown shrimp Farfantepenaeus aztecus caged in SNB1M, SNB5M, and SNB20M. Nekton density patterns in Barataria Bay appeared to be clearly different from the Galveston Bay model, which predicts nekton distribution patterns relative to the marsh shoreline. Although densities in Barataria Bay were significantly higher in samples near the marsh shoreline (Marsh1M or SNB1M) for brown shrimp, blue crab, and white shrimp, highest mean densities were not always present in marsh edge vegetation. In addition, densities of brown shrimp and white shrimp in Barataria Bay declined much more steeply with distance into the marsh than in the model. Daily growth rates (1.0–1.2 mm TL day−1, 68–89 mg day−1) for brown shrimp were similar among SNB habitat types. Our results suggest that SNB in Barataria Bay may be relatively more important as habitat for fishery species than previously assumed. |
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Other Citation Details |
Rozas, L.P. & Minello, T.J. Estuaries and Coasts (2015) 38: 200 |
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DOI (Digital Object Identifier) | 10.1007/s12237-015-9945-3 |
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Keywords
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None | Farfantepenaeus aztecus |
None | brown shrimp |
None | Fishery habitat |
None | Growth experiment |
None | Marsh edge |
None | Spartina marsh |
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None | 2014 |
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None | Barataria Bay |
None | Gulf of Mexico |
None | Louisiana |
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Document Type | Journal article |
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Format | Acrobat Portable Document Format |
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Status Code | Published |
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* » Support Role | Author |
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* » Date Effective From | 2015 |
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Person | Rozas, Lawrence P |
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* » Support Role | Co-Author |
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* » Date Effective From | 2015 |
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Person | Minello, Thomas J |
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* » Support Role | Distributor |
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* » Date Effective From | 2015 |
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Organization | Galveston Laboratory (GALLAB) |
Address |
4700 Avenue U Galveston, TX 77551 United States |
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Phone | 409.766.3500 |
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URL | https://www.fisheries.noaa.gov/about/galveston-laboratory |
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* » Date Effective From | 2015 |
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Person | Ditty, James |
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4700 Avenue U Galveston, TX 77551-5997 |
Email Address | Jim.Ditty@noaa.gov |
Phone | 409-766-3782 |
Fax | 409-766-3508 |
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» Download URL | https://doi.org/10.1007/s12237-015-9945-3 |
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Catalog Details
Catalog Item ID | 56586 |
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Metadata Record Created By | Lee M Weinberger |
Metadata Record Created | 2019-06-03 06:05+0000 |
Metadata Record Last Modified By | SysAdmin InPortAdmin |
» Metadata Record Last Modified | 2022-08-09 17:11+0000 |
Metadata Record Published | 2021-10-21 |
Owner Org | SEFSC |
Metadata Publication Status | Published Externally |
Do Not Publish? | N |
Metadata Workflow State | Published / External |
Metadata Last Review Date | 2021-10-21 |
Metadata Review Frequency | 1 Year |
Metadata Next Review Date | 2022-10-21 |
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