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December 12
1891 - Actor Buck Jones, a Placerita and Vasquez "regular," born in Indiana [story]


With the goal of contributing to coral reef research, California State University, Northridge biology alumna Jessica L. Bergman submitted her graduate thesis project, “Behavior of Brooded Coral Larvae in Response to Elevated pCO2,” to the National Science Foundation East Asia Pacific Summer Institute.

Her project focused on the behavior and physiology of coral larvae and how it is affected by ocean acidification.

The species that live within a coral reef are as diverse as the plants and animals in a rainforest. Understanding humankind’s effects on marine life and the ecology of underwater ecosystems can help scientists better understand how to help coral reefs survive the coming century.

“It’s particularly pleasing seeing CSUN graduate students achieving success by stepping onto a world where they are excelling,” said CSUN biology professor Peter Edmunds. “Jesse (Jessica) is a smart cookie who’s motivated and studied really hard. Jesse’s experience in Japan and through her (master of science) research can inspire other students to consider the same path.”

Jessica Bergman

Jessica Bergman

In 2016, Bergman was awarded by NSF with an EAPSI summer fellowship and conducted her research with professor Saki Harii at Sesoko Research Station in Okinawa, Japan as part of the Tropical Biosphere Research Center, University of the Ryukyus.

“It was extremely enriching to link up with a lab across the world, not only because of the access to new resources, but because of the chance to experience a completely different culture by collaborating with Japanese students and researchers,” Bergman said. “Dr. Harii, as an expert in coral larval ecology, was also a great mentor that I continue to keep in touch with today.”

Ocean acidification is caused by the uptake of carbon dioxide in the atmosphere, and subsequently, its dissolution in seawater. According to Earth Eclipse, 30 to 40 percent of carbon dioxide from people dissolves into oceans, rivers and lakes.

“The human industry is producing carbon dioxide from power plants, cement manufacturers and driving cars and the carbon dioxide goes into the atmosphere and eventually dissolves into the seawater,” Edmunds said. “In seawater, carbon dioxide dissolves to create a weak acid, so in a future affected by ocean acidification, coral larvae probably will be living in slightly acidic water.”

To conduct her study on how ocean acidification affected coral larvae, Bergman incubated coral larvae in three UV-transparent tubes on a shallow fringing reef, where they were monitored over a 24-hour period. She found that larvae were slightly more buoyant in acidic water.

According to Edmunds, the normal behavior of coral larvae involves the periodic movement of moving up and down in the seawater. When they move up to the surface, larvae encounter water moving at a different speed compared to greater depths. Bergman’s buoyancy results raise the question of whether these effects can influence the capacity of corals to replace themselves with baby corals.

“Coral larvae potentially can move from one reef to the next and repopulate a reef where large numbers of corals have been killed,” Edmunds said. “Larvae drift around with the currents, but eventually settle on the sea floor and glue themselves to rock where the conditions are favorable. Thereafter, they start growing and eventually and replace the adult corals. This is a slow process.”

According to National Ocean Service Education, the average growth rate of a coral reef is 0.3 to 2 centimeters per year. A hurricane can wipe out a coral reef overnight. If the rate of coral disappearance continues or rises, there are numerous potential negative outcomes, Edmunds said.

“In general, if coral larvae are exposed to the acid water, it makes the larvae go less far away from the reefs to produce them,” Edmunds said. “Which might mean that they are less able to escape the conditions that are changing. The tricky part is that as conditions deteriorate everywhere, it’s possible that there won’t be anywhere to escape to.”

There are several reasons why the disappearance of coral reefs is bad.

“Coral reefs prevent erosion of shorelines, and without coral reefs, you lose your costal protection,” Edmunds said. “For example, if you live in the Maldives, Marshall Islands or the Cayman, you live on an island that is maybe about 3 feet above sea level. If there’s no reef, you’re going to drown. The second reason for concern is that these [coral reefs] support a tourism industry worth hundreds of millions of dollars a year, and with no ref, much of this will go away.”

Without coral reefs, a source of fishery for the developing world is eliminated and scientists are not able research these species to find new antibiotics, cures and biomedical treasures, Edmunds said.

The lowering of carbon dioxide levels in the atmosphere can decrease the acidity in ocean water. Bergman’s research sheds new light on the implications for the capacity of corals to replace themselves through reproduction.

For more information on Bergman’s research, visit the Frontiers in Marine Science website.

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HIGHER EDUCATION LINKS
LOCAL COLLEGE HEADLINES
Tuesday, Dec 11, 2018
After a new threat was discovered on the California State University, Northridge, campus, CSUN President Dianne F. Harrison, Ph.D., released a statement regarding final exams scheduled for Dec. 12.
Thursday, Dec 6, 2018
The CalArts School of Theater production, Through the Leaves," directed by Brittney Brady (BFA 20), opens on Thursday, Dec. 6, and runs through the following Thursday, Dec. 13.
Thursday, Dec 6, 2018
Officials at California State University, Northridge, released a statement Wednesday regarding graffiti that was found in one of the buildings on campus - graffiti that included a threat of a mass shooting and hate symbols.
Tuesday, Dec 4, 2018
The Santa Clarita Community College District’s Board of Trustees will hold an organizational and business meeting at College of the Canyons’ Valencia campus on Wednesday, Dec. 5.
Monday, Dec 3, 2018
A 26-year-old man was charged with assaulting two women this week at California State University, Northridge, the Los Angeles County District Attorney’s Office announced Friday.
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Latest Additions to SCVNews.com
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After a new threat was discovered on the California State University, Northridge, campus, CSUN President Dianne F. Harrison, Ph.D., released a statement regarding final exams scheduled for Dec. 12.
CSUN Instructs Faculty to Provide Alternate Exam Format After New Threat
LANCASTER – The University of Antelope Valley Pioneers (2-8) earned their second victory in as many contests, defeating the Flames of Bethesda University of California (1-8), 110-65, Monday, in intercollegiate men’s basketball action at the Pioneer Event Center.
Pioneers Roll Past Bethesda
Join the Valley Industry Association (VIA) as they review and close the 2018 year and formally install the 2019 Valley Industry Association Board of Directors.
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The county of Los Angeles officially filed a comment on Monday in opposition to the U.S. Department of Homeland Security and the Citizenship and Immigration Services’ proposed “public charge” rule change.
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The next regular-organizational meeting of the Governing Board of the William S. Hart Union High School District is set for Wednesday, Dec. 12, at the Administrative Center, 21380 Centre Pointe Parkway, Santa Clarita 91350.
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The rhetoric of playing a full 40 minutes can easily overshadow the reality of a college team's effort.
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The University of Antelope Valley Pioneers women's basketball team (8-2; 1-0 Cal Pac) routed the La Sierra University (3-9; 0-1 Cal Pac) Golden Eagles 106-46 in Saturday's intercollegiate California Pacific Conference women’s basketball action in Riverside.
UAV Women’s Basketball Team Routs La Sierra 106-46
The WiSH Education Foundation ends 2018 on a high note, having supported local public schools with more than $235,000.
WiSH Foundation 2018 Donations to SCV Schools Top $235K
The University of Antelope Valley is pleased to announce the hiring of Anthony Harris as its Director of Athletics.
Anthony Harris is New Athletics Director at UAV
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Senator Scott Wilk, R-Santa Clarita, introduced Senate Bill 53 (SB 53), legislation that will strengthen transparency in state agencies and stop agencies like the California High-Speed Rail Authority from taking advantage of a loophole that allows them to hold closed-door meetings without public involvement.
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The city of Santa Clarita has updated the list of productions shooting in the city and the Santa Clarita Valley for the week of Dec. 10-16, 2018.
‘GLOW,’ ‘Seal Team,’ ‘Killer Contractor’ Now Filming in SCV
Law enforcement and Coroner's officials discovered more human remains Saturday morning in the Santa Clara River bed in Newhall, near where a human skull was discovered Wednesday.
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The Los Angeles County Health Officer has issued a cold weather alert for the Antelope Valley due to the National Weather Service’s forecast for low temperatures Tuesday through Friday.
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Several CalArtians are among the nominees announced Friday for the 61st Annual Grammy Awards to be handed out Feb. 10.
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Several CalArtians have been nominated for the 46th annual Annie Awards, which honor achievement in the art of animation.
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CalArts faculty and students are among the 2018 Arts Writers Grant Program recipients from the Andy Warhol Foundation for the Visual Arts.
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CalArts graduates are among the nominees for Golden Globe Awards the Hollywood Foreign Press Association announced on Monday, recognizing excellence in domestic and foreign film and television.
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The California Department of Education and the State Board of Education have launched the second version of the California School Dashboard, a website that gives parents, students and educators access to valuable school and district data.
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The TMU Mustangs played a dominant defensive effort Thursday, holding Hope International scoreless in the third quarter of what became a 76-47 win.
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The nonprofit Friends of Hart Park, in cooperation with the Los Angeles County Department of Parks and Recreation, will present the 7th Annual Hart Holiday Boutique & Craft Fair at Hart Park on Saturday and Sunday, Dec. 8-9, from 10 a.m. to 4 p.m. each day.
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The Los Angeles County Board of Supervisors will hear comments from the public about the proposed Centennial Specific Plan Project at their next meeting on Tuesday, Dec. 11, starting at 9:30 a.m.
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Castaic School Board members held their Annual Organizational Meeting on Dec. 6, and elected officers and representatives of the Board for 2019.
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Los Angeles County District Attorney Jackie Lacey announced Friday that Amazon.com Inc. has agreed not to sell force-fed foie gras in California under a consumer protection settlement reached with her office and the Monterey County and Santa Clara County district attorney’s offices.
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