Project: Effects of Nitrogen Sources and Plankton Food-Web Dynamics on Habitat Quality for the Larvae of Atlantic Bluefin Tuna in the Gulf of Mexico

Acronym/Short Name:

GoMex Tuna Foodweb B

Start Date:

2017-05

End Date:

2020-04

Geolocation:

Gulf of Mexico

Programs:

Unaffiliated

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Description

Amendment #136: Current stock assessments for the Gulf of Mexico require better ecosystem understanding to effectively evaluate how bottom-up processes limit or enhance Atlantic Bluefin Tuna recruitment. The objective of this proposal is to elucidate the underlying mechanisms that link variability in nitrogen sources and food-web fluxes in the Gulf of Mexico to habitat quality, feeding, growth and survival for Atlantic Bluefin Tuna larvae. This proposal addresses the Program Priority: Comprehensive understanding of living coastal and marine resources, food web dynamics, habitat utilization, protected areas, and carbon flows, specifically "(d) Food web structure and dynamics, trophic linkages, and/or predator-prey relationships, especially projects that develop and/or apply new techniques or technologies".

More Information

Funding

Funding Source	Award Number
National Oceanic and Atmospheric Administration	NA16NMF4320058

Dataset Collections

Dataset Short Name	Full Dataset Title
BLOOFINZ-GoM_ABT_prey	Larval Atlantic Bluefin Tuna prey from gut analysis, collected on NOAA Ship R/V Nancy Foster cruises NF1704 and NF1802 in the Gulf of Mexico, May 2017 and May 2018.
GoMex phytoplankton carbon biomass	Phytoplankton carbon biomass by taxa from NOAA Ship R/V Nancy Foster cruises NF1704 and NF1802 in the Gulf of Mexico, May 2017 and 2018
GoMex pigments	Pigment data by phytoplankton taxa from CTD casts from NOAA Ship R/V Nancy Foster cruises NF1704 and NF1802 in the Gulf of Mexico, May 2017 and 2018
Gulf of Mexico CTD Fluorometer	Fluorometer data (volts) from CTD casts from NOAA Ship R/V Nancy Foster cruises NF1704 and NF1802 in the Gulf of Mexico, May 2017 and 2018
Gulf of Mexico deckboard ammonium uptake	Ammonium uptake from short-term 6-hour deckboard incubations on R/V Nancy Foster cruises NF1704 and NF1802 in the Gulf of Mexico in May of 2017 and 2018
Gulf of Mexico deckboard nitrate uptake	Nitrate uptake from short-term 6-hour deckboard incubations on R/V Nancy Foster cruises NF1704 and NF1802 in the Gulf of Mexico in May of 2017 and 2018
Gulf of Mexico diel ammonium uptake	Ammonium uptake from short-term diel deckboard incubations on R/V Nancy Foster cruises NF1704 and NF1802 in the Gulf of Mexico in May of 2017 and 2018
Gulf of Mexico diel nitrate uptake	Nitrate uptake from short-term diel deckboard incubations on R/V Nancy Foster cruises NF1704 and NF1802 in the Gulf of Mexico in May of 2017 and 2018
Gulf of Mexico in situ nitrate uptake	Nitrate uptake from in-situ incubations conducted during R/V Nancy Foster cruises NF1704 and NF1802 in the Gulf of Mexico in May of 2017 and 2018
Gulf of Mexico net primary production	Net primary production by H13CO3- uptake from in-situ incubations conducted during R/V Nancy Foster cruises NF1704 and NF1802 in the Gulf of Maine in May of 2017 and 2018
Gulf of Mexico particulate organic matter and isotopes	Particulate organic matter and isotope data from R/V Nancy Foster cruises NF1704 and NF1802 in the Gulf of Mexico in May of 2017 and 2018.
Gulf of Mexico sediment trap	Sediment trap carbon, nitrogen, and isotope, pigment, and 234Th flux from deployments during R/V Nancy Foster cruises NF1704 and NF1802 in the Gulf of Maine in May of 2017 and 2018.

Deployments

Total: 2

Cruise/Deployment	Platform Type	Start Date	Chief/Co-chief Scientist
NF1704	vessel	07 May 2017	Estrella Malca
NF1802	vessel	27 Apr 2018	John Lamkin

Project Coordinators

Person	Roles	Affiliation
Karen E. Selph	Principal Investigator	University of Hawaiʻi at Mānoa (SOEST)

Status message

Database

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Project: Effects of Nitrogen Sources and Plankton Food-Web Dynamics on Habitat Quality for the Larvae of Atlantic Bluefin Tuna in the Gulf of Mexico