Bluefin Tuna Larvae in Oligotrophic Ocean Foodwebs, Investigations of Nutrients to Zooplankton: Overview of the BLOOFINZ-Gulf of Mexico program

Western Atlantic bluefin tuna (ABT) undertake long-distance migrations from rich feeding grounds in the North Atlantic to spawn in oligotrophic waters of the Gulf of Mexico (GoM). Stock recruitment is strongly affected by interannual variability in the physical features associated with ABT larvae, but the nutrient sources and food-web structure of preferred habitat, the edges of anticyclonic loop eddies, are unknown. Here, we describe the goals, physical context, design and major findings of an end-to-end process study conducted during peak ABT spawning in May 2017 and 2018. Mesoscale features in the oceanic GoM were surveyed for larvae, and five multi-day Lagrangian experiments measured hydrography and nutrients; plankton biomass and composition from bacteria to zooplankton and fish larvae; phytoplankton nutrient uptake, productivity and taxon-specific growth rates; micro- and mesozooplankton grazing; particle export; and ABT larval feeding and growth rates. We provide a general introduction to the BLOOFINZ-GoM project (Bluefin tuna Larvae in Oligotrophic Ocean Foodwebs, Investigation of Nitrogen to Zooplankton) and highlight the finding, based on backtracking of experimental waters to their positions weeks earlier, that lateral transport from the continental slope region may be more of a key determinant of available habitat utilized by larvae than eddy edges per se.Postprint1,74

2020-06-10/11 DAILY UNM GLOBAL HEALTH COVID-19 BRIEFING

Executive Summary: NM Highlights: Governer’s update on COVID-19 efforts. NM case count. Testing for food industry workers. Testing for lawmakers and staffers. Face coverings mandatory in Santa Fe. Lawmakers prepare to $2.4B budget hole. Learning loss due to lockdown. US Highlights: EPA orders unsafe products removed. Cases on the rise after roll back. Economics, Workforce, Supply Chain, PPE: Governments need more money. Study on masks. Hearing impaired masks. Fast spread in Africa. Kenya’s economic slowdown. Epidemiology Highlights: White House Task Force warns of spikes. Mortality risk factors. Higher mortality in cancer patients. UV-C disinfection of mobile phones. Practice Guidelines: Benefits of non-invasive ventilation and prone positioning demonstrated in 15 patient case-series. Canadian Thoracic Society\u27s statement on management of sleep disordered breathing. Experience of providing ketogenic diet in two US epilepsy centers. A review on personalized cardiometabolic approach to reduce COVID-19 complications and costs. Asian guidelines on inflammatory bowel diseases management. Testing: False negative rate in COVID-19 testing. Patients testing negative with subsequent positive test results. IgG and IgM antibody response. SARS-CoV-2 receptor binding domain potential antigen for use in antibody testing. Drugs, Vaccines, Therapies, Clinical Trials: Drug repositioning. Hydroxychloroquine toxicity. Multifaceted immunosuppression described. HCQ not effective for prophylaxis. 63 new trials. Other Science: Containment vs mitigation strategy affects mortality. Prehospital pulse oximetry in detection of silent hypoxemia. Normal D-dimer associated with inpatient survival. Family support and risk of depression, anxiety, PTSD. Limited airborne transmission. Stay-at-home orders and weight