CalCOFI Report Vol 54, 2013 (complete pdf; individual pdf links below)
I. Reports, Reviews, and Publications
- Report of the CalCOFI Committee
- Book Review: “Regional Fisheries Oceanography of the California Current System and the CalCOFI program” by Sam McClatchie. Paul Fiedler
- Review Of Selected California Fisheries For 2012: Coastal Pelagic Finfish, Market Squid, Pacific Herring, Groundfish, Highly Migratory Species, White Seabass, Pacific Halibut, Red Sea Urchin, And Sea Cucumber. Dianna Porzio, editor
- State of the California Current 2012-2013: No Such Thing as an “Average” Year. Brian Wells, Isaac D. Schroeder, Jarrod A. Santora, Elliott L. Hazen, Steven J. Bograd, Eric Bjorkstedt, Valerie J. Loeb, Sam McClatchie, Edward D. Weber, William Watson, Andrew R. Thompson, William Peterson, Richard D. Brodeur,Jeff Harding, John Field, Keith Sakuma, Sean Hayes, Nathan Mantua, William J. Sydeman, Marcel Losekoot,Sarah Ann Thompson, John Largier, Sung Yong Kim, Francisco P. Chavez, Caren Barcelo, Pete Warzybok,Russell Bradley, Jaime Jahncke, Ralf Goericke, Gregory S. Campbell, John A. Hildebrand, Sharon R. Melin,Robert L. DeLong, Jose Gomez-Valdes, Bertha Lavaniegos, Gilberto Gaxiola-Castro, Richard T. Golightly,Stephanie R. Schneider, Nancy Lo, Robert M. Suryan, Amanda J. Gladics, Cheryl A. Horton, Jennifer Fisher,Cheryl Morgan, Jay Peterson, Elizabeth A. Daly, Toby D. Auth, and Jeffrey Abell
- Supplement to State of the California Current 2012-2013: No Such Thing as an “Average” Year
- Publications
II. Symposium of the CalCOFI Conference, 2012: Harmful Algal Blooms in the California Current
Microscopic planktonic algae are the basis of the ocean’s food chains supporting fisheries and aquaculture, however algal blooms can also have negative effects (aka red tides), causing widespread mortality of marine life. Of the more than 5000 phytoplankton species less than 10% bloom to densities of more than 1 million per liter and only 1% have the ability to produce harmful toxins killing marine organisms and in some cases humans. Worldwide there has been an increase in frequency, intensity and geographic extent of harmful algal blooms (HABs) as seen in the number of cases of paralytic shellfish poisonings in 1970 compared with 1990 (Hallegraeff 1993). There are a number of potential hypotheses that have been proposed to explain the increase in HABs including, increased scientific awareness of toxic species, increased utilization of coastal waters and fisheries, increased transport of dinoflagellate resting cysts, stimulation of plankton blooms by eutrophication and/or changing oceanographic conditions. Studies of HABs and toxic dinoflagellates have a number of challenges including the scarcity of phytoplankton surveys, poor taxonomic information, difficulties culturing toxic species and changes in the toxin production of phyotoplankton. In this symposium we invite scientists working on HABs in the California Current to present results from their work as well as make recommendations for ways to move HAB research forward. We anticipate that this symposium will bring the long-term oceanographic sampling tradition of CalCOFI and the HAB research communities together to enhance collaboration, survey planning, data sharing, prediction capabilities and funding opportunities.
Extended Abstract:
- A Southern California Perspective on Harmful Algal Blooms. Melissa Carter, Mary Hilbern, Fernanda Mazzillo, Carolynn Culver, Gregg Langlois
III. Scientific Contributions
- Finescale Triggerfish (Balistes polylepis) And Roosterfish (Nematistius pectoralis) Presence In Temperate Waters Off Baja California, México: Evidence Of El Niño Conditions. Jorge Adrián Rosales-Casián
- Do Shifts In Otolith Morphology Of Young Pacific Sardine(Sardinops Sagax) Reflect Changing Recruitment Contributions From Northern And Southern Stocks? Barbara J. Javor
- Corrected Conversion Algorithms For The Calcofi Station Grid And Their Implementation In Several Computer Languages. Edward D. Weber, Thomas J. Moore
- An Overview Of Ichthyoplankton Research In The Northern California Current Region: Contributions To Ecosystem Assessments And Management. Toby D. Auth, Richard D. Brodeur
- Estimating Fish Populations From Reef Citizen Science Volunteer Diver Order-Of-Magnitude Surveys. John R. Wolfe, Christy V. Pattengill-Semmens
- Fish Population Fluctuation Estimates Based On Fifteen Years Of Reef Volunteer Diver Data For The Monterey Peninsula, California. John R. Wolfe, Christy V. Pattengill-Semmens
- Anomalous Distributions Of Pelagic Juvenile Rockfish On The U.S. West Coast In 2005 And 2006. Stephen Ralston, Ian J. Stewart
- Distribution Of Pelagic Juvenile Rockfish (Sebastes Spp.) In Relation To Temperature And Fronts Off Central California. Keith M. Sakuma, Eric P. Bjorkstedt, And Stephen Ralston
- Interannual Variability Of Humboldt Squid (Dosidicus Gigas) Off Oregon And Southern Washington. Tanya A. Chesney, Selina S. Heppell, Jose Montero, Jim Graham
- Computing And Selecting Ageing Errors To Include In Stock Assessment Models Of Pacific Sardine (Sardinops Sagax). Emmanis Dorval, Jennifer D. Mcdaniel, Dianna L. Porzio, Roberto Félix-Uraga, Vanessa Hodes, Sandra Rosenfield
- The Sardine Fishery of the Gulf Of California. Ernesto A. Chávez, Alejandra Chávez-Hidalgo