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Gulf-Wide comparison of Thalassia testudinum demographics, morphology, flowering rates, and physiological responses to short-term shading (2010)

Dataset extent

This project will examine and compare phenotypic expressions and responses to light stress of genetically isolated Thalassia testudinum populations in three major regions of seagrass habitat in the Gulf of Mexico: Florida Keys, Florida panhandle, and Corpus Christi Bay, TX. I will examine population demographics such as average shoot age, average growth rate, and average flowering rate with comparisons among the three areas previously mentioned. I will also compare morphologies of T. testudinum from these genetically distinct populations and examine the relationship between phenotypic expression and local environmental conditions, such as temperature, salinity, and light availability. To determine any relationships between genetic response to changes in light quality and geographic location of a population, a short term shading experiment will be conducted in situ using light extinctions of 0, 45, and 90% of surface irradiance. This novel experiment is essential for understanding the tightly interwoven relationships between seagrass physiology and the surrounding abiotic environmental factors.

Data and Resources

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Additional Info

Field	Value
Author	Just Cebrian or Ashley McDonald
Maintainer	data@disl.org
Last Updated	July 23, 2022, 03:04 (UTC)
Created	July 23, 2022, 03:04 (UTC)
Access_Constraints	Permission to access these data must be given by Dr. Just Cebrian or Ashley McDonald.
ISO 19115 Topic Categories	biota, 002, environment, 007, oceans, 014
Place Keywords	Gulf of Mexico, GOM, Florida Keys National Marine Sanctuary, FKNMS, Florida Bay, Gulf Islands National Seashore, Pensacola Bay, Florida, East Flats, Corpus Christi Bay, Texas, Big Lagoon
Theme Keywords	Thalassia testudinum, turtle grass, seagrass, demographics, morphology, biomass, flowering rate, shading, adaptability, physiological response, structural plasticity, comparison
Use_Constraints	Acknowledgment of the DISL: Marine Ecosystems Lab and would be appreciated in products developed from these data, and such acknowledgment as is standard for citation and legal practices for data source is expected by users of these data. Users should be aware that comparison with other data sets for the same area from other time periods may be inaccurate due to inconsistencies resulting from changes in mapping conventions, data collection, and computer processes over time. The distributor shall not be liable for improper or incorrect use of these data, based on the description of appropriate/inappropriate uses described in the metadata document. These data are not legal documents and are not to be used as such.
dc.contributor	Dr. James Fourqurean Dr. Ken Dunton Bart Christiaen
dc.coverage.placeName	Gulf of Mexico GOM Florida Keys National Marine Sanctuary FKNMS Florida Bay Gulf Islands National Seashore Pensacola Bay Florida East Flats Corpus Christi Bay Texas Big Lagoon
dc.coverage.t.max	20100722T
dc.coverage.t.min	20100322T
dc.coverage.x.max	-80.8
dc.coverage.x.min	-97.1
dc.coverage.y.max	30.3
dc.coverage.y.min	24.8
dc.creator	Dauphin Island Sea Lab's Marines Ecosystem Lab
dc.date	Unpublished material
dc.description	This project will examine and compare phenotypic expressions and responses to light stress of genetically isolated Thalassia testudinum populations in three major regions of seagrass habitat in the Gulf of Mexico: Florida Keys, Florida panhandle, and Corpus Christi Bay, TX. I will examine population demographics such as average shoot age, average growth rate, and average flowering rate with comparisons among the three areas previously mentioned. I will also compare morphologies of T. testudinum from these genetically distinct populations and examine the relationship between phenotypic expression and local environmental conditions, such as temperature, salinity, and light availability. To determine any relationships between genetic response to changes in light quality and geographic location of a population, a short term shading experiment will be conducted in situ using light extinctions of 0, 45, and 90% of surface irradiance. This novel experiment is essential for understanding the tightly interwoven relationships between seagrass physiology and the surrounding abiotic environmental factors.
dc.language	en
dc.subject	Thalassia testudinum turtle grass seagrass demographics morphology biomass flowering rate shading adaptability physiological response structural plasticity comparison
dc.title	Gulf-Wide comparison of Thalassia testudinum demographics, morphology, flowering rates, and physiological responses to short-term shading (2010)
spatial	{ "type": "Polygon", "coordinates": [ [ [ -97.1, 30.3 ], [ -80.8, 30.3 ], [ -80.8, 24.8 ], [ -97.1, 24.8 ], [ -97.1, 30.3 ] ] ] }