Home / Ocean & Earth Sciences (page 5)

Ocean & Earth Sciences

Bacteria affects sand more than seawater

manoa-engineering-shoreline

Sewage-contaminated coastal waters can lead to stomach aches, diarrhea and rashes for those who accidentally swallow harmful microbes or come into contact with them. New research recently published in the American Chemical Society (ACS) journal Environmental Science and Technology sheds light on why fecal contamination affects sand more than water. University of Hawaiʻi at Mānoa Associate Professor of Civil and ...

Read More »

Ritidian Point wave buoy redeployed to serve Guam communities

manoa-pacioos-ritidian-point-buoy

On July 17, 2015, the Pacific Islands Ocean Observing System (PacIOOS) redeployed its wave buoy outside ofRitidian Point with the support of the U.S. Coast Guard. The yellow buoy is located about 4 miles offshore and will now continue to send information on wave height, direction, period, and sea surface temperature. The reinstalled buoy off Ritidian Point joins the existing ...

Read More »

New tool forecasts high sea levels and potential flooding on Kwajalein Atoll

manoa-pacioos-kwajalein-atoll

A new Pacific Islands Ocean Observing System (PacIOOS) tool is now available that forecasts the potential occurrence of high sea levels and wave inundation for the most populated segments of Kwajalein Atoll. The forecast is updated hourly and accessible to the public on the PacIOOS website. “Due to the low elevation of the Marshall Islands, communities are vulnerable to flooding ...

Read More »

Protecting the deep sea: a call for balancing mining and ecosystem sustainability

A new species from a new order of Cnidaria collected at 4,100 meters in the Clarion-Clipperton Fracture Zone (CCZ) that lives on sponge stalks attached to nodules. Photo credit: Craig Smith and Diva Amon, ABYSSLINE Project.

Thousands of feet below the ocean’s surface lies a hidden world of undiscovered species and unique seabed habitats—as well as a vast untapped store of natural resources including valuable metals and rare-earth minerals. Technology and infrastructure development worldwide is dramatically increasing demand for these resources, which are key components in everything from cars and modern buildings to computers and smartphones. ...

Read More »

Timing is critical for the success of some spawning fish

Timing is critical for the snapper and other reef fish that aggregate to spawn each year. Photo credit: National Oceanic and Atmospheric Administration

The larvae of some species of reef fish appear to survive better depending on the timing of when they were spawned, according to new research from the University of Hawaiʻi at Mānoa Hawaiʻi Institute of Marine Biology(HIMB) and the National Institute for Mathematical and Biological Synthesis (NIMBioS). The findings advance earlier research that suggested only spawning location is critical and ...

Read More »

Hōkūleʻa crew and UH researchers explore Great Barrier Reef

Hokulea Great Barrier Reef

Three key University of Hawaiʻi staff contributed to Hawaiian voyaging canoe Hōkūleʻa’s exploration and research at Australia’s Great Barrier Reef in June. Chad Kalepa Baybayan is a master navigator and serves as astronomer in residence at UH’s ʻImiloa Astronomy Center on the Big Island. UH graduate assistant Haunani Kane is serving as Hōkūleʻa’s assistant navigator. UH researcher Ruth Gates, an ...

Read More »

Deep sea sharks are buoyant

Shark with tag

Scientists from the University of Hawaiʻi at Mānoa and University of Tokyo revealed that two species of deep-sea sharks, sixgill and prickly sharks, are positively buoyant—they have to work harder to swim downward than up and they can glide uphill for minutes at a time without using their tails. Their results were published in a recent study,“Unexpected Positive Buoyancy in ...

Read More »

Advances in animal tracking redefine how we discover and manage ocean life

Advances in telemetry enabled discoveries of tiger sharks' behavior and movement. Credit: K Holland.

A new paper, published this month in Science, details the explosion in aquatic animal tracking research over the past 30 years and its impact on discoveries about the movements, migrations, interactions and survival of both common and elusive aquatic species. The review, co-authored by Kim Holland, researcher at the University of Hawaiʻi at Mānoa Hawaiʻi Institute of Marine Biology (HIMB), ...

Read More »

Plants may run out of time to grow under ongoing climate change

Corn at Waimanalo Research Station Open House

A key potential “benefit” of global warming — namely, that plants at northern latitudes will thrive in a warmer world — is challenged by a new study released by University of Hawai’i scientists. The prevailing assumption ignores the fact that plants in the North will remain limited by solar radiation, curbing positive effects of warming and additional CO2 availability. In ...

Read More »

Professor Brian Bowen receives prestigious 2015 Kobe Award

Brian Bowen

Dr. Brian Bowen, research professor at the Hawai‘i Institute of Marine Biology and University of Hawai‘i Sea Grant College Program funded researcher, was awarded the 2015 Kobe Award for lifetime achievement in aquatic biology. The award, established in 2011 by Suma Aqualife Park in Kobe, Japan, is given to only one scientist each year in honor of his or her considerable ...

Read More »