Please join us for a free 2 hour tour of the

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in Big Fisherman Cove on Saturdays beginning at 10am in the Lecture Hall.

Tour Includes: • Science Lecture by Summer Fellows (Topics including ocean acidification, environmental monitoring, food security and climate change effects on marine ecosystems) • Tour of the Laboratory

• Touch Tanks • Catalina Hyperbaric Chamber (unless in use for treatments)

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Come learn about the exciting research our Wrigley Institute Summer Fellows are conducting! View our presentation line up:

The Lab is located just east of Two Harbors, past the campground. Please feel free to: walk (2 miles each way), catch a Shoreboat (departs Two Harbors at 9:45am and returns at 12:00pm), or come over in your dinghy (tie up on

north side of dock). The tour begins at 10:00am in the Lecture Hall. For more info please call (310) 510-0811.

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May 28th Alexis EstradaCalifornia State University, Northridge "Factors contributing to the recovery of green abalone at Santa Catalina Island"

My research is investigating factors contributing to the apparent population growth of green abalone at Santa Catalina Island. This study is focused on the habitat, movement, and recruitment of green abalone and will provide a better understanding of what is happening with this population and why.

June 4th Bingran ChengUniversity of Southern California "The unseen majority: microbial lives at the ocean floor"

Marine sediment harbors abundant and diverse microbial communities. Unlike most living organisms, these microorganisms live in complete darkness. Instead of gaining energy from sunlight, they breathe and grow through various forms of chemical reactions. The sediment microbial communities are not only the producers in the benthic food web, but also essential players of the global biogeochemical cycles. Microbial processes are major components of environmentally relevant topics including but not limited to hydrocarbon degradation and greenhouse gas emission.

June 11th Griffin SrednickCalifornia State University, Northridge "Non-native Sargassum at Catalina Island: Do fish care?"

In temperate marine environments, the physical structure of algae (e.g., giant kelp) can provide important shelter from predation for juvenile fishes and increased access to food. Since its introduction in 2005, Sargassum horneri has begun to occupy habitat formerly dominated by giant kelp. S. horneri appears to thrive in warm water periods and offers a much shorter physical structure than giant kelp. These changes are expected to alter the distribution of fishes throughout the water column. My research aims to better understand how differences in the height and type of algae affects fishes along the west end of Santa Catalina Island.

June 18th Emily OrzechowskiUniversity of California, Berkeley

"Environmental & ecological change over the past 120,000 years in southern California's coastal marine habitas"The peak of the Last Interglacial Period (120,000 years ago) marked an interval of climatic change. In this talk I will summarize paleontological and paleoclimatic evidence for profound ecological and environmental changes that occurred during this interval- and compare it to the present-day- in southern California's coastal marine habitats.

June 25th Emily MeeseCalifornia State University, Long Beach "Are horn sharks (Heterodontus francisci) keystone predators of the kelp forest?"

Urchins are an important species of the kelp forest because they help create the structure and function of the community. With too many urchins feeding on kelp, the kelp forest and all its diversity is lost. But, if there are urchin predators around to help keep the urchin population in check, the kelp system is balanced and can promote a diverse, healthy ecosystem. Horn sharks are a known predator of urchins, but we don’t know the extent of their predatory behavior and what their impacts on the whole kelp forest could be. My project aims to understand these predatory impacts by surveying the population structure at Catalina Island and by tracking individuals geo-positional and 3D movements.

USC Wrigley Institute for Environmental StudiesSaturdays at the Lab, Wrigley Fellows Presentation Calendar10:00 AM Memorial Day to Labor Day (exluding July 23rd)WMSC Lecture Hall

USC Wrigley Institute for Environmental StudiesSaturdays at the Lab, Wrigley Fellows Presentation Calendar10:00 AM Memorial Day to Labor Day (exluding July 23rd)WMSC Lecture Hall

July 2nd Casey BarrUniversity of Southern California "Environmental microbiology & the search for electric life"

Bacteria are far more than just the disease-causing germs you learned about as a child. Environmental microbiology is the study of how bacteria interact within the environment, the community, and each other. This talk will give a fresh perspective on the true nature of bacteria, their significance in the natural environment and how a recently discovered ability can lead to world-changing applications.

July 9th Russell DauksisCalifornia State University, Northridge "Top-down versus bottom-up trophic effects on subtidal eelgrass communities"

My project aims to investigate whether predatory fishes (top-down) contribute to trophic cascades within eelgrass beds, and how this compares to nutrient additions that simulate nutrient pollution. Eelgrass is a nursery habitat for economically important fishes and invertebrates globally, but unfortunately 90% of historic eelgrass area is gone in southern California. It is critical to understand the of what influences the health of eelgrass is needed to help conserve this ecosystem in peril.

July 16th Joshua KlingUniversity of Southern California

"Changing the game: How climate change is reshaping marine microbial communities"

The majority of living things in our oceans are invisible. Being too small to see without a microscope, a single drop of seawater can hold millions of life forms. All together, these organisms support the ocean’s food web and offset climate change by removing CO2 from the atmosphere. This work is an exploration of the affect increasingly higher CO2 levels will have on microbial life in the waters around Catalina Island.

July 30th Xiaoshen YinUniversity of Southern California

"Farmed oysters – "The best of the best" seafood on the Seafood Watch Super Green List"Having been introduced from Asia to all continents but Antarctica, the Pacific oyster is of high scientific and commercial values. Thanks to its characteristics, the Pacific oyster is a great candidate for promoting the development of sustainable aquaculture, which aims to provide wholesome, economically viable and environmentally friendly seafood for human. My presentation focuses on why I am interested in studying genetics of the Pacific oyster and what approaches can be adopted to improve the yield of farmed oysters in practice.

August 6th Caitlin McGarigalCalifornia State University, Long Beach "The stressful side of fishing"

Recreational fishing is an important part of California culture, but many fishing regulations result in catch-and-release practices which can be a traumatic experience for fish. Stress from capture and handling can affect a fish's growth, reproduction, behavior and, ultimately, impact population growth. The objectives of my reseach are to 1) Determine how catch-and-release stress affects fish physiology and behavior, 2) Measure how quickly fish recover after release, and 3) Identify specific practices fishermen can use to minimize stress for these valuable recreational species.

USC Wrigley Institute for Environmental StudiesSaturdays at the Lab, Wrigley Fellows Presentation Calendar10:00 AM Memorial Day to Labor Day (exluding July 23rd)WMSC Lecture Hall

August 13th Nathan ChurchesUniversity of Southern California "Making bigger, heartier shellfish as a sustainable seafood source for our planet"

Global human populations are on the rise, and so too is the problem of chronic malnutrition. Many people across the planet support themselves by fishing the oceans for protein, but pressure on wild fisheries is causing stock collapse in many areas. These problems combined point to a need for sustainable seafood, a niche which bivalve aquaculture can help fill. In my work, I study how we can use breeding techniques and genetic approaches common to terrestrial crops (like corn and cattle) to make bivalve aquaculture more accessible and economically viable. Not only will the information help develop a sustainable future of seafood, it will shed light on the ecosystem ramifications of ocean acidification. Ultimately, my goal is to use genomics to isolate the genes responsible for traits of interest. These so-called 'biomarkers' can be used to help commercially develop bivalve aquaculture, and understand ecosystem dynamics in a scenario of continued carbon emissions for planet earth.

August 20th Genoa SullawayCalifornia State University, San Diego "Assessing the Consequences of an Invasive Marine Alga on Ecosystem Production"

The global spread of non-native species jeopardizes the integrity of coastal ecosystems. Coastal habitats are especially vulnerable to macroalgal invaders because of the high concentration of human activity and boating that may accidentally bring invasive species to these areas. In diverse marine ecosystems composed of photosynthetic algae, for example kelp forests, invasive algae may alter the ecosystem resiliency and carbon cycling. My research assesses how the invasive algae, Sargassum horneri, may change subtidal algae communities and how this change in the photosynthetic organisms may alter the net photosynthesis in invaded coastal zones.

August 27th Jason WangUniversity of Southern California "New scientific approaches to improving food production from the ocean"

As global food demand rises, aquaculture production is growing as a source of protein to sustain population growth. As a result, research is needed to ensure the sustainability and efficiency of growing food from the sea. My research studies the underlying physiology behind the development and growth of the Pacific oyster, and examines ways to predict the successful growth of oysters based on early larval biomarkers.

September 3rd Kenneth BolsterUniversity of Southern California "The Importance of Iron in the Ocean's Surface"

Iron is an essential nutrient for all living organisms on Earth. While land plants typically have access to lots of iron from the soil, iron in the ocean tends to form rust and sink rapidly. However, strong sunlight can break up rust particles and make that iron available again. The fact that iron may be more available during the day than at night impacts the daily cycles of the ecosystem.