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
Project Duration:2017-05 - 2020-04
Geolocation:Gulf of Mexico

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".

DatasetLatest Version DateCurrent State
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 2018.2021-02-24Final with updates expected
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 20182021-01-14Final no updates expected
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 20182021-01-14Final no updates expected
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 20182021-01-14Final no updates expected
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 2018.2021-01-14Final no updates expected
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 20182021-01-12Final no updates expected
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 20182021-01-12Final no updates expected
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 20182021-01-12Final no updates expected
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 20182021-01-07Final no updates expected
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 20182021-01-07Final no updates expected
Phytoplankton carbon biomass by taxa from NOAA Ship R/V Nancy Foster cruises NF1704 and NF1802 in the Gulf of Mexico, May 2017 and 20182021-01-07Final no updates expected
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 2018.2020-12-30Final no updates expected

People

Principal Investigator: Karen E. Selph
University of Hawaiʻi at Mānoa (SOEST)

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Funded by the U.S. National Science Foundation