General documents pertaining to Bay Delta IEP San Francisco Bay StudyCDFW Data Portal RSS Feed GeneratorMon, 17 Apr 2023 09:01:51 -0700https://nrm.dfg.ca.gov/documents/ContextDocs.aspx?cat=R3-SFBayStudyCalifornia Department of Fish and Wildlife Data Portal120https://nrm.dfg.ca.govhttps://nrm.dfg.ca.gov/images/ca_dfg/CDFW-Insignia-146x193.png85en-usSearch Documentshttps://nrm.dfg.ca.gov/documents/ContextDocs.aspx?cat=R3-SFBayStudysearchStation Map - Boat (open water) station map for the San Francisco Bay Study.185001:4https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=185001Mon, 17 Apr 2023 09:01:51 -07002020-01-01T00:00:00San Francisco Bay Study boat (open water) station latitudes and longitudes - San Francisco Bay Study open water (boat) station coordinates.162382:9https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=162382Mon, 17 Apr 2023 00:35:09 -07002020-01-01T00:00:00PosterSan Francisco Bay Fish - A “blob” of warm ocean water was first noticed off of Alaska in late 2013. Now extending from Alaska to Baja California and about 5°C (9°F) warmer than normal, this is reportedly the most extensive and longest-lasting temperature anomaly in the eastern Pacific Ocean in the modern record. Many northern shifts of ocean species, from zooplankton to sea turtles, have been reported. Less well publicized are changes in the San Francisco Estuary’s fish and invertebrate communities. CDFW’s San Francisco Bay Study first noticed increased catches of species associated with warmer ocean water in 2013. The number and abundance of these warm-water species increased in 2014 and 2015 and by summer 2015, we collected several subtropical species normally found off of Southern and Baja California. The appearance of these warm-water species varied based on several life history traits, including the planktonic larval duration, spawning temperature cues, and their normal northern distribution. Larvae of species with long planktonic phases typically ride the south to north current that drives many warm water events. One such species, the California Tonguefish, first increased in abundance in 2013, and was the dominant flatfish in the estuary in 2014 and 2015. Other species require a minimum temperature for spawning that is not typical of the coastal ocean here, resulting in local recruitment only during extended warm-water events. The California Halibut is a good example of a species that spawns locally with warmer ocean water. Beginning in 2014, we started to record the largest year classes of juvenile halibut since the 1997-98 El Niño event. Other subtropical species not typically found in the estuary, but collected in 2014 and 2015, included the California Grunion, Pacific Sardine, Queenfish, Shovelnose Guitarfish, Striped Mullet, Thornback, yellow rock crab, and brown shrimp. Concurrent with this increase in subtropical species, many of the cold-water species that dominated our catches since the early 2000s declined. This includes English Sole and Dungeness crab. 111630:6https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=111630Thu, 19 Nov 2015 19:23:37 -08002015-09-01T00:00:00PosterSan Francisco Bay Shrimp - The freshwater Siberian prawn, Exopalaemon modestus, was recently introduced into the Sacramento-San Joaquin Delta, and has since become established. This poster presents some basic life history, distribution, and identification information for E. modestus. Additionally, identification information for shrimp that may be confused with E. modestus is provided. 44773:7https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=44773Thu, 19 Nov 2015 19:23:11 -08002006-10-01T00:00:00Poster45073:6https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=45073Thu, 19 Nov 2015 19:21:40 -08002009-09-29T00:00:00