The California Current system off Monterey, California: physical and biological coupling

Diverse, uncultivated bacteria and archaea underlying the cycling of dissolved protein in the ocean

“…Seawater was collected aboard the R/V Western Flyer during Monterey Bay Aquarium Research Institute cruise CN13ID, 7-17 October 2013, along California Cooperative Fisheries Investigations (CalCOFI) Line 67 (Collins et al, 2003;Pennington et al, 2010). Sampling and hydrographic profiling were conducted using a conductivity-temperature-depth rosette sampler (Sea-Bird Electronics) equipped with (12) 10 l Niskin sample bottles.…”

“…We coupled SIP with high-throughput Illumina sequencing of 16S small subunit ribosomal RNA (rRNA) genes (Hungate et al, 2015;Morando and Capone, in review) in three different size fractions to identify protein assimilation by individual bacterial and archaeal operational taxonomic units (OTUs). We performed the incubations at a station within the coastal transition zone of the Central California Current, where there is a rich contextual background on biogeochemistry (for example, Collins et al, 2003), and where M. pusilla is a resident of the phytoplankton community (Thomsen and Buck, 1998). Free-living (0.2-0.8 μm) and particle-associated (43 μm) fractions contained a diversity of newly implicated, uncultivated bacterial and archaeal taxa mediating the cycling of dissolved protein.…”

Winter phytoplankton bloom induced by subsurface upwelling and mixed layer entrainment southwest of Luzon Strait

“…Upwelling is reflected by cold sea surface temperature, low DO concentration, as well as negative sea level anomaly Tang et al, 2002;Collins et al, 2003;Martin and Villanoy, 2008).…”

The California Current System: A multiscale overview and the development of a feature-oriented regional modeling system (FORMS)

“…Based on the above overview, we identified the following key points to be considered for a synoptic synthesis of features: (i) a synoptic state that can sustain a frontal jet of higher velocity similar to ; (ii) the low-salinity core of the CC might be influenced by these southward-flowing synoptic coastal jets mixing with the mean equatorward flow system (which is part of the large-scale subtropical gyre); (iii) offshore of Monterey Bay at around 37.5N, the synoptic jet (of Strub et al, 1991) and the mean current (of Collins et al, 2003) are within one degree of each other; (iv) the addition of a number of eddies might provide a more stable configuration.…”

“…According to Collins et al (2003), during fall and winter, when the upwelling is not present, the Inshore Countercurrent (Davidson Current) has two distinct cores, one on the coast and one 50 km offshore. Since our focus is on the development of CCS-FORMS for the summertime, we defer to the development of this feature.…”