Northern Gulf of Mexico surface water data characterizes microbial communities and grazing dynamics from inshore to shelf sites between July 2009 and December 2011. The dataset includes results from 50 modified dilution experiments measuring phytoplankton (Chl a) and prokaryote biomass, growth rates, nutrient limitation, and grazing impacts. It was collected and archived by NOAA's National Centers for Environmental Information (NCEI).
Use Cases
- Analyze phytoplankton (Chl a) and prokaryote biomass differences between inshore and shelf surface water sites.
- Model the impact of nutrient (N+P) amendments on prokaryote and phytoplankton growth rates using experimental results.
- Compare microzooplankton grazing rates for phytoplankton and prokaryotes across inshore (average 106% and 75%) and shelf (average 55% and 57%) environments.
- Investigate correlations between viral lysis detection rates (24% for phytoplankton, 12% for prokaryotes) and environmental variables.
- Assess the influence of river discharge on the variability of inshore versus shelf surface water microbial communities.
Strengths
- Data from 50 modified dilution experiments provides a substantive experimental basis.
- Clear temporal coverage from July 2009 to December 2011 across four distinct geographic sites.
- Quantifies specific rates like grazing percentages (e.g., 106% inshore) and nutrient limitation frequency (e.g., 52% for phytoplankton).
Limitations
- Sample size is limited to 50 experiments over a 2.5-year period.
- Geographic scope is restricted to four sites in the northern Gulf of Mexico, limiting broad applicability.
- Unknown row count and specific column details prevent assessment of data granularity and completeness.
Provenance
- Source
- NOAA National Centers for Environmental Information (NCEI Accession 0117507).
- Collection Method
- Modified dilution experiments on surface water samples, with nutrient amendments (N+P).
- Time Range
- 2009-07 to 2011-12
- Freshness
- Data collection ended in December 2011; it is a historical snapshot.
- Geography
- Inshore and shelf surface waters in Alabama, northern Gulf of Mexico.