Navigation Links
Tracking coral larvae to understand Hawai'i reef health
Date:6/9/2010

Scientists can predict almost to the hour when the reef-building "rice coral" off Oahu will spawn, but no one knows where the resulting floating coral larvae go.

From June 11-16, 2010, the U.S. Geological Survey, the University of Hawai'i at Mānoa's Kewalo Marine Laboratory, and Malama Maunalua will use satellite-tracked drifters to track the coral larvae's dispersal along O'ahu's south shore in an effort to better understand why certain reefs in Maunalua Bay are doing well and others are doing poorly.

The next coral spawning event will begin after the next new moon, which is June 12. The scientists will use underwater instruments to monitor tides, waves, currents, temperature, salinity, chlorophyll, and water clarity throughout the bay. They will release satellite-tracked drifters to float along with the buoyant coral eggs and larvae and monitor the drifters' positions all night to determine if they are being transported into, retained in, or dispersed out of Maunalua Bay.

During the experiment, boaters and swimmers should keep an eye out for, and avoid the small (8-inch diameter) orange drifters and some small yellow floats marking instrument packages, all with "USGS" markings.

Maunalua Bay has been degraded by polluted runoff and sediment, invasive algae, and unsustainable harvesting. Reduced water and bottom quality tied to watershed discharges and invasive algae affect not only the corals in the bay, but the ability of larvae from elsewhere to replenish depleted populations. Community-based efforts to remove invasive algae and reduce runoff and sedimentation will ultimately lead to improved coral and fish resources. Recovery of the Bay also depends in part on the reproductive health of the local and adjacent coral reefs as sources of coral seed.

Because they are living organisms, corals are born and die. If new corals are not produced and able to settle, replacing those that die from both natural and human-induced causes, the reefs will eventually disappear, along with the other associated marine resources. Once scientists understand the circulation, larval dispersal patterns, and "connectivity" between reefs, managers can identify where recovery efforts should be focused.


'/>"/>

Contact: Robert Richmond
richmond@hawaii.edu
808-780-2189
University of Hawaii at Manoa
Source:Eurekalert  

Related biology news :

1. Tracking feline memories on the move
2. Louisiana Tech researchers investigate tracking, sensors to assist Air Force
3. NIH recognizes Clemson nanotechnology for molecule tracking
4. GestureTek/Imagination Launch AirPoint, Worlds First Hand-Tracking Unit, for Shell Group.
5. Tracking stroke
6. Tracking influenzas every movement
7. Tracking prions
8. Paleozoic sediment curve provides new tool for tracking sea-floor sediment movements
9. Tracking down the cause of mad cow disease
10. Scientists achieve first tracking of salmon from headwaters in Rockies through Pacific to Alaska
11. Oral rinses used for tracking HPV-positive head and neck cancers holds promise for cancer screening
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Tracking coral larvae to understand Hawai'i reef health
(Date:5/16/2016)... --  EyeLock LLC , a market leader of iris-based ... IoT Center of Excellence in Austin, Texas ... embedded iris biometric applications. EyeLock,s iris authentication ... with unmatched biometric accuracy, making it the most proven ... platform uses video technology to deliver a fast and ...
(Date:5/9/2016)... -- Elevay is currently known as the ... high net worth professionals seeking travel for work   ... there is still no substitute for a face-to-face meeting. ... deal with a firm handshake. This is why wealthy ... citizenship via investment programs like those offered by the ...
(Date:4/28/2016)... SAN FRANCISCO and BANGALORE, India ... part of EdgeVerve Systems, a product subsidiary of Infosys (NYSE: ... service provider, today announced a global partnership that ... convenient way to use mobile banking and payment services. ... Mobility is a key innovation area for financial services, but ...
Breaking Biology News(10 mins):
(Date:6/27/2016)... (PRWEB) , ... June 27, 2016 , ... ... operations for Amgen, will join the faculty of the University of North ... adjunct professor of strategy and entrepreneurship at UNC Kenan-Flagler, with a focus on ...
(Date:6/24/2016)... 24, 2016 Epic Sciences unveiled a ... susceptible to PARP inhibitors by targeting homologous recombination ... The new test has already been incorporated into ... cancer types. Over 230 clinical trials ... pathways, including PARP, ATM, ATR, DNA-PK and WEE-1. ...
(Date:6/23/2016)... ... June 23, 2016 , ... UAS LifeSciences, ... launch of their brand, UP4™ Probiotics, into Target stores nationwide. The company, which ... to add Target to its list of well-respected retailers. This list includes such ...
(Date:6/23/2016)... June 23, 2016 Houston Methodist Willowbrook ... Cy-Fair Sports Association to serve as their official ... Houston Methodist Willowbrook will provide sponsorship support, athletic ... with association coaches, volunteers, athletes and families. ... Cy-Fair Sports Association and to bring Houston Methodist ...
Breaking Biology Technology: