17100 Obsolete - AFSC/RACE/EcoFOCI - Chlorophyll, ichthyoplankton and zooplankton samples from cruises 3MF05, 3TT05 and 8MF05 Data Set Published / External 22352 Recruitment Processes Program Project Completed These data are part of a ocean observation study by Stabeno, Napp, and Whitledge sponsored, in part, by the North Pacific Research Board (Project 517; http://doc.nprb.org). The grant was titled "Sentinels for Bering Sea ecosystem change." Moorings have been maintained on the southeastern Bering Sea shelf at four sites: M2 (56.9B0N, 164.1B0W) since 1995, M4 (57.9B0N, 168.9B0W) since 1996; M5 (59.9B0N, 171.7B0W) and; M8 (62.2B0N 174.7B0W) since 2004. Shipboard measurements of temperature, salinity, nutrients, chlorophyll, fluorescence and zooplankton were collected around the moorings and along the 70-m isobath on 3 cruises (3MF05, 16 April b?? 7 May; 3TT05, May 12 - 28; 8MF05, 21 September b?? 4 October) to groundtruth the in situ sensors on the moorings. This long-term monitoring supports major findings: (1) Over the southeastern shelf, the timing of the spring phytoplankton bloom is determined by the presence of ice, with an early bloom occurring if ice is present after mid-March and a later bloom if there is no sea-ice after mid-March; (2) during 2001-2005, the southeastern Bering Sea shelf underwent a marked warming (~3B0C) that was closely associated with a decrease of sea ice; with shifts in the atmospheric forcing, colder conditions returned to the Bering Sea shelf in the winter 2006 and continued into winter/spring 2007; (3) nutrients supply and summer salinity over the shelf has not significantly changed during the last three decades; (4) in association with the warming there is an indication that the abundance of cold-water zooplankton species (e.g. Calanus marshallae ) has been reduced; (5) from hydrography collected in May and September 2005 along the 70 m isobath starting at M2 in the south and ending at M8 in the north, it is evident that the structure of southern shelf is dominated by temperature, while the northern shelf is dominated by salinity. In addition, the location of the boundary between the southern shelf and northern shelf appears to vary from one year to the next and is mainly, but not completely dependent upon maximum ice extent during the spring. Chlorophyll samples taken at and around the moorings were obtained as groundtruth data for chlorophyll fluorescence sensors on the moorings. See http://www.pmel.noaa.gov/foci/foci_moorings/foci_moorings.shtml for information on mooring locations, configurations, and data. Loaded by batch 3775, 12-05-2012 12:38 Theme PARR Exclusion Non-Federal Funding Theme PARR Exclusion Obsolete Data Set Theme biota chlorophyll Theme biota phaeopigments Theme biota phytoplankton Theme oceans chlorophyll Theme oceans phaeopigments Theme oceans phytoplankton Temporal Seasons Spring Temporal Seasons Summer Spatial Alaska Spatial Bristol Bay Spatial St. Lawrence Island Spatial arctic Spatial eastern Bering Sea shelf Stratum Depths upper water column Alaska Fisheries Science Center Seattle WA USA Data Set Oracle Database None Planned Table (digital) human identification of samples, SeaCat, CTD wire, bongo bongo, CalVET, CTD, Seacat Data Steward 2015 Person Bahl, Kimberly kimberly.bahl@noaa.gov 206 526 4314 email Distributor 2015 Person Duffy-Anderson, Janet janet.duffy-anderson@noaa.gov email Metadata Contact 2019 Person Bahl, Kimberly kimberly.bahl@noaa.gov 206 526 4314 email Point of Contact 2019 Person Bahl, Kimberly kimberly.bahl@noaa.gov 206 526 4314 Ground Condition -175 -160 65 55 Range 2005-04-21 2005-09-28 Unclassified Contact Distributor Contract Distributor None None none none https://epic.noaa.gov Data are processed using Seabird... See InPort entries 26275, 26373 and 26570. No Unknown No No varies Samples require human identification and analysis Other varies local and offsite backups See InPort entries 26275, 26373 and 26570. gov.noaa.nmfs.inport:17100 Doug Turnbull 2012-12-05T12:38:21 SysAdmin InPortAdmin 2025-05-15T19:15:56 2016-05-18 Alaska Fisheries Science Center AFSC 7600 Sand Point Way N.E., Building 4 Seattle WA 98115 USA https://www.afsc.noaa.gov 0700-1700 Pacific Time 1001 Public No No 2016-05-18 1 Year 2017-05-18 Point Local surface 1.00 meters Attribute values NPRB517_Chlorophyl_final Phytoplankton pigments (chlorophyll and phaeopigment) from water bottle samples Napp, Jeffrey FOCICruise FOCI Program Cruise Number XYYZZ(X=sequential cruise number; YY= ship designation; ZZ= year) See entity type definition source Text Station Sequential Station Number See entity type definition source Integer Haul Sequential Haul Number (N.B. Increment haul number if the operation is performed within 0.5 nm of original station position) See entity type definition source Integer GearAbrv Gear Abbreviation See entity type definition source CTDB Conductivity, Temperature, Depth Instrument with Water Bottles See entity type definition source ShipCruise Ship's Convention for Cruise Name See entity type definition source Text GMTTime Greenwich Mean Time See entity type definition source 1899-12-30 00-13-00 1899-12-30 23-26-00 Time Date/Time BottomDepth Depth of Water Column (acoustically determined) See entity type definition source Integer Latitude Latitude (Decimal Degrees) See entity type definition source 56.6677 62.1997 0.0001 Real Longitude Longitude (Decimal Degrees) See entity type definition source -174.6882 -163.8362 0.0001 Real HaulComments Comments Entered By Scientist See entity type definition source Text Performance Scientists Assessment of Sample Quality See entity type definition source good no reservations about quality of sample See entity type definition source quest questionable - some reservations about quality of sample; read Haul Comments to learn why See entity type definition source fail failure during sample collection or processing - do not use these data See entity type definition source GMTDate Greenwich Mean Time Date at Time of Sample Collection See entity type definition source 2005-04-21 00-00-00 2005-09-28 00-00-00 Time Date/Time SampleDepth Depth of Sample Collection See entity type definition source Integer ChloroPerM^3 Chlorophyll a Concentration See entity type definition source 0.0580 32.1385 Micrograms per Cubic Meter Real PhaeoPigPerM^3 Phaeophorbide + Phaephytin Concentration See entity type definition source 0.0 4.2601 Micrograms per Cubic Meter Real