NSF award 2618613 · Texas A&M University Corpus Christi

Collaborative Research: Deciphering Nutrient Sources and Microbial Processes Fueling the Great Atlantic Sargassum Belt

Final report due

28 November 2029

in 1,137 days · The award ends on 31 July 2029.

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Decide about an extension2 Apr 2029in 897 days
award ending 2029-07-31 · Research.gov
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Extension request16 Jun 2029in 972 days
award ending 2029-07-31 · Research.gov
PAPPG 24-1: “at least 45 days prior to the end date”
No-cost extension notice21 Jul 2029in 1007 days
award ending 2029-07-31 · Research.gov
PAPPG 24-1: “at least ten calendar days prior to the end date”
Final report due28 Nov 2029in 1137 days
award ending 2029-07-31 · Research.gov
PAPPG 24-1: “no later than 120-days following the end date of the award”
Project outcomes report due28 Nov 2029in 1137 days
award ending 2029-07-31 · Research.gov
PAPPG 24-1: “no later than 120 days following the end date”
Award is closed out28 Nov 2029in 1137 days
award ending 2029-07-31 · Research.gov
PAPPG 24-1: “financially closed out 120 days after their expiration date”

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NSF lists this award's end date as 31 July 2029.
NSF rules say the final report is due no later than 120 days after that.
So the final report is due by 28 November 2029.

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Award card

Award number: 2618613
Period of support: 15 Aug 2026 – 31 Jul 2029
Amount: $435,650
Awardee: Texas A&M University Corpus Christi, Corpus Christi, TX
Program: GEO Biotechnology, ESH-Earth System Hazards
Directorate: GEO

Abstract

Massive floating mats of Sargassum seaweed now form every year across the tropical Atlantic, creating the Great Atlantic Sargassum Belt. These blooms provide habitat for marine life but also threaten coastal ecosystems, tourism, fisheries, and public health when they wash ashore in large quantities. It is still not understood why these blooms have become so extensive or what nutrient sources allow them to persist as…

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