ANI
18 Nov 2023, 04:03 GMT+10
California [US], November 17 (ANI): Algae living within coral soft tissue provide much of the energy required by their hosts, and some symbiotic algae enable corals to withstand warmer water better than others.
In a recent study led by the University of Hawaii at Manoa, researchers discovered a tradeoff for corals dominated by thermally sensitive algae: they grow faster in cooler water.
"As the ocean continues to warm, understanding how symbionts and environmental factors affect coral growth and health will help predict reef futures and inform conservation interventions where coral stocks are selected for specific traits or symbionts," said Shayle Matsuda, a doctoral student at the Hawaii Institute of Marine Biology in the UH Manoa School of Ocean and Earth Science and Technology at the time of the research.
The study was co-led by Matsuda, now a postdoctoral fellow at the Shedd Aquarium, and Mariah Opalek, who conducted the experiment for her undergraduate thesis at UH Manoa. The research team investigated whether rice corals hosting symbiotic algae that can tolerate warmer water may grow more slowly, which could impact survivorship and competition for space on the reef, compared to coral hosting symbionts that are more susceptible to bleaching when ocean waters warm.
Over a two-month study period, the researchers measured the growth of rice corals dominated by heat-tolerant or heat-sensitive symbiotic algae. Additionally, they tested growth across decreasing light levels to see if the tradeoff between growth and tolerance to warm water would be affected by light, which is a major driver of the distribution of these symbionts in Kaneohe Bay, Hawaii.
"This research shows us the complexity of coral growth on a reef," said Opalek, who is now a grant support assistant at Kauai Community. "A coral's competitive advantage could be lost in a matter of a few degrees depending on what type of symbiont they associate with."During the first month, when water temperatures were warmer, the symbiont present did not affect growth. However, over the cooler second month, corals with heat-sensitive algae grew up to 77 per cent faster than corals dominated by heat-tolerant algae, and this growth advantage increased in higher light treatments, which correlates to shallower depths on a reef.
"This means that the growth advantage associated with the thermally sensitive corals may only occur during a handful of the cooler months," said Matsuda. "As ocean warming continues, it is likely that the advantage of hosting thermally tolerant symbionts outweighs any growth advantage hosting the thermally sensitive species might." (ANI)
Get a daily dose of Peking Press news through our daily email, its complimentary and keeps you fully up to date with world and business news as well.
Publish news of your business, community or sports group, personnel appointments, major event and more by submitting a news release to Peking Press.
More InformationNEW YORK, New York - U.S. stocks closed mixed on Monday following on from last week's volatility."Digestion is the word ...
REDMOND, Washington: Microsoft President Brad Smith said there is no chance of super-intelligent artificial intelligence (AI) being developed within the ...
NEW YORK: A survey by Consumer Reports found that electric vehicles (EV) from 2021 through 2023 model years encountered nearly ...
LONDON, UK: In a report released this week, the Economist Intelligence Unit (EIU) said that Singapore and Zurich tied for ...
WASHINGTON D.C.: This week, the U.S. Federal Aviation Administration (FAA) said it implemented a new aircraft certification policy, which requires ...
WASHINGTON D.C.: As businesses built more warehouses and accumulated machinery equipment, the U.S. economy grew faster than initially forecast in ...
KUALA LUMPUR, Malaysia - According to Malaysia's foreign ministry, 121 people, mostly Malaysians suspected of being victims of job scams, ...
BEIJING, China: The Chaoyang District Intermediary Court in Beijing has begun compensation hearings for the Chinese relatives of those who ...
BENTONVILLE, Arkansas: As part of its efforts to reduce reliance on China, cut costs, and diversify its supply chains, Walmart, ...
NAYPYIDAW, Myanmar: Kyar Win, spokesperson for the Myanmar National Democratic Alliance Army, which launched a surprise offensive last month against ...
BEIJING, China: The country's commerce ministry said that during a meeting with Vietnamese Prime Minister Pham Minh Chinh in Ho ...
© Provided by Xinhua JIUQUAN, Dec. 5 (Xinhua) -- China on Tuesday launched the CERES-1 Y9 carrier rocket from the ...