Resilience in Gulf of Alaska Science
Like everyone, scientists world-wide want to reduce the spread of COVID-19. However, for their work, they also need to continue research projects that rely in part on uninterrupted data records. Fortunately, with the support of NSF and University of Alaska, NGA LTER scientists will be able to do both by reducing spring field operations.
A press release by the College of Fisheries and Ocean Sciences at the University of Alaska Fairbanks outlines our plans for the spring cruise: Sikuliaq to embark on limited research cruise in May.
Evolution forced by COVID-19
Like other research programs, our research plans shifted rapidly in response to the changing situation. Several articles trace this evolution by featuring NGA LTER PIs and research activities.
- “How Scientists Are Keeping Irreplaceable Research Going During the COVID-19 Pandemic” describes our early attempts to adjust when the effects of the pandemic were still unclear (Smithsonian Magazine, mid-March.)
- “At UAF, two major programs highlight the struggle” describes the announcement by the University-National Oceanographic Laboratory System (UNOLS) to stand down the academic fleet until July 1, 2020. Since our Spring and Summer cruises were scheduled on the UNOLS vessel R/V Sikuliaq, this directly endangered our program (our local newspaper, the Daily News Miner, mid-April.)
- “Pandemic carves gaps in long-term field projects” describes the importance of NGA LTER’s measurements of plankton in the spring. And it describes how R/V Sikuliaq’s crew and NGA LTER scientists quarantined in hopes that a spring cruise might be allowed (Science Magazine, mid-April.)
Importance of the Time Series
Multi-disciplinary monitoring of the Gulf of Alaska ecosystem has occurred every May since 1998. Fisheries managers and research scientists can make informed assessments of Alaska marine ecosystem health and status because of these measurements. This long-term sampling happens along the Seward Line – a set of stations stretching 150 miles across the shelf – and within Prince William Sound. Regular samples at these consistent stations insure the integrity of this time series. Therefore, preserving core physical, nutrient chemistry, phytoplankton and zooplankton data at these stations is a high priority for NGA LTER scientists.
The North Pacific Research Board (NPRB), the Alaska Ocean Observing System (AOOS), and the Exxon Valdez Oil Spill Trustee Council (EVOS) via the Gulf Watch Alaska program all provide additional funding that make this time series possible.
Our planned field work aims to continue the valuable Seward Line time series while keeping personnel safe. Before the cruise, R/V Sikuliaq remained in Seward, AK, staffed by her crew. They have been under quarantine on board since their arrival at the start of April. Three of our Principle Investigators (PIs), Seth Danielson, Ana Aguilar-Islas, and Russ Hopcroft, quarantined at home for 2 weeks. They will join R/V Sikuliaq for the 7 day cruise, May 4-10, 2020. Before the cruise, crew and science party members logged body temperatures twice daily and maintained strict adherence to social isolation protocols in order to ensure a virus-free voyage.
The cruise plan includes sampling of the entire Seward Line with additional stations in western Prince William Sound. Planned measurements include water temperature and salinity using the conductivity-temperature-depth (CTD) instrument; water collections from deep waters to the surface for chlorophyll, nutrient, phytoplankton, and microzooplankton analysis; and net tows for zooplankton.
Other common NGA LTER activities will not be possible due to the short cruise length and limited personnel. Postponed activities include shipboard experiments, seabird and mammal surveys, jellyfish sampling, dissolved iron and other trace metal sampling, carbonate chemistry sampling, and optical measurements. NGA LTER’s other cross-shelf sampling lines will not be visited.
Despite these restrictions, we are fortunate to have the opportunity to continue our work and to contribute to the goal of understanding the Northern Gulf of Alaska ecosystem.