In 1969, The Beatles’ drummer Ringo Starr memorably sang that he’d “like to be, under the sea, in an octopus’s garden, in the shade.”
This past Earth Day, he could have been a lucky snorkeler to indeed be under the sea, but in a staghorn coral garden at Piti Bomb Holes in Tepungan.
At the end of Guam’s third International Coral Spawning Workshop on April 22, University of Guam Master’s candidate in Biology and and Sea Grant Fellow Nicole Burns piloted a volunteer effort to “plant” corals in a patch where they have died.
Sea Grant Fellows, UOG graduate students receiving funds to support their research, must implement outreach activities as part of their proposed work plans. Historically Fellows have conducted public talks as outreach—and this was the first to require mask, snorkel, fins, and duck dives.
Research for reef rehabilitation
Burns belongs to a cohort at Dr. Laurie Raymundo’s lab expanding scientific knowledge of corals, threats to their survival, and solutions for how to restore them on Guam’s reefs.
During her time at UOG, Burns has helped maintain a coral nursery, which resembles those for plants. In the latter, growers sprout seeds and care for seedlings until they are strong enough to survive outside their pots and in the ground. Similarly, coral nurseries are environments where fragments can grow before transplanting them into the reef.
Burns observes corals as they develop and then “outplants,” or transfers them, to degraded reef areas. A significant portion of her research explores conditions under which corals optimally grow.
Given that rising ocean temperatures, pollution, and various human activities have contributed to a 40% global decline in coral reefs, nurseries are potentially useful and important sites for experiments and rearing.
April’s 8-day International Coral Spawning Workshop, coordinated in part by Raymundo, brought together specialists who learned about coral reproduction and how to raise them in controlled conditions.
Earth Day, underwater
After a safety and dive briefing, Burns led six volunteers and supervisors to tour the coral nursery. They snorkeled around the area’s diverse habitats to check out the various marine life, including hard and soft corals, fish, and algae.
For the next hour, volunteers then attached coral fragments to stakes with zip ties. Stakes are at depths of about six feet, thus requiring participants to exercise some breath-holding and aquatic skill.
Volunteer Joyce Merino pointed out that one of the more difficult aspects of outplanting was “being able snorkel with fins in such a shallow and small area and not destroying the corals ourselves with all the kicking.”
Indeed, Burns mentions that water enthusiasts can help reefs already present and fragments just staked.
“Because corals take so long to grow, it is imperative that we let them do it in peace. By knocking into and breaking corals, we could be destroying decades, or even centuries-worth of growth, within seconds,” she says.
Volunteers can return to the garden plots a few months or years from now, hopefully to see their work flourishing in Tepungan’s clear waters.
UOG Sea Grant and event coordinators note that activities were conducted with permits from the Department of Agriculture. In marine preserve areas (MPAs) such as Tepungan, it is illegal to handle corals. In non-MPA areas, residents are also advised not to handle corals as they are fragile animals. Touching, stepping on, or otherwise manipulating them can cause damage to the reef.
For more information about Sea Grant Fellows or science-based community education events, contact Marie Auyong at firstname.lastname@example.org.
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