Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

2013 Ocean Health Index shows food provision remains an area of great concern

16.10.2013
In the 2013 Ocean Health Index (OHI) –– an annual assessment of ocean health lead by Ben Halpern, a research associate at UC Santa Barbara's National Center for Ecological Analysis and Synthesis (NCEAS) and professor at the Bren School of Environmental Science & Management –– scientists point to food provision as the factor that continues to require serious attention.

The OHI defines a healthy ocean as one that sustainably delivers a range of benefits to people now and in the future based on 10 diverse public goals. The 2013 score of 65 out of 100 demonstrates the ongoing need for more effective management of this precious resource.


This is a purple anemone and anemone fish.

Credit: UCSB

"I'm encouraged because people, organizations and governments are paying attention to the Ocean Health Index and what they can learn from it," Halpern said. "Not only has the OHI been adopted as an indicator to gauge how well countries are meeting their biodiversity conservation targets, but it is beginning to inform the United Nations World Ocean Assessment and was named by the World Economic Forum as one of two endorsed tools for helping achieve sustainable oceans."

Goal scores out of a possible 100 for categories that make up the OHI ranged from a low of 31 for natural products to a high of 95 for artisanal fishing opportunities. Other categories include food provision (33), carbon storage (74), coastal protection (69), coastal livelihoods and economies (82), tourism and recreation (39), sense of place (60), clean waters (78) and biodiversity (85).

With a score of only 33 out of 100, food production from wild harvest and mariculture (cultivation of marine organisms in the open ocean) was the second-lowest-scoring goal and one of the most important resources from the sea for people around the world. A score of 100 is given for wild-caught fisheries if the biomass of landed stocks at sea is within ±5 percent of a buffered amount below the biomass that can deliver maximum sustainable yield. For mariculture, the number of tonnes of product per coastal inhabitant living within 31 miles of the coast is calculated for each country, and all countries above the 95th percentile receive scores of 100. Countries that have never had mariculture are not scored.

"Seafood is a major source of protein for one-third of the world's population, and it is estimated we will need 70 percent more food by 2050 to feed the growing population," said Daniel Pauly, principal investigator of the Sea Around Us project and leader of the University of British Columbia team of science contributors to OHI. "The score of 33 out of 100 for food provision indicates we are not ready to meet that challenge."

The 2013 OHI also assessed coastal protection, giving it a score of 69 out of 100 and indicating that further declines are likely. Coastal habitats –– including mangrove forests, sea-grass beds and salt marshes, coral reefs and sea ice –– protect coastlines from storm surges and coastal flooding. Forty-five countries that sit in the annual path of tropical cyclones had an average score of 52 out of 100. A score below 100 indicates a decline in area and condition of key natural habitats that protect shorelines from storms.

Among those cyclone-prone countries with a population exceeding 10 million people, the average coastal protection score is only 51 compared to the global average score of 69. The score was down slightly (-0.2 percent) from 2012 and the OHI calculates that the likely future status will decrease by 1 percent in the coming five years.

"Restoring natural protective habitats in storm-prone regions, in combination with sensible coastal planning and creative civil engineering, is essential," said Greg Stone, a leading authority on marine conservation policy and ocean health issues and executive vice president at Conservation International's Betty and Gordon Moore Center for Science and Oceans.

Wealthy countries have the greatest impact on industry and policy so their performance on the OHI is important to ocean health, but there was little correlation between their economic performance as measured by gross domestic product (GDP) and their OHI scores. The average score of countries with the 15 highest GDPs was 65 –– higher than the global average, but still not optimal.

"In its second year now, the OHI demonstrates that the areas with the least human impact have healthier oceans, but it also shows that nations who manage their resources better achieve higher OHI scores," Halpern said. "We depend on the health of the ocean for many benefits, such as food, livelihood and tourism, and the OHI indicates that the condition of these benefits needs to be improved in order to provide a healthy thriving ocean for our children and their children."

The OHI is a collaborative effort, made possible through contributions from more than 65 scientists/ocean experts and partnerships among organizations including UCSB's NCEAS, Sea Around Us, Conservation International, National Geographic and the New England Aquarium. The full set of scores for each country can be found at oceanhealthindex.org.

Julie Cohen | EurekAlert!
Further information:
http://www.ucsb.edu
http://www.oceanhealthindex.org

More articles from Ecology, The Environment and Conservation:

nachricht Listening in: Acoustic monitoring devices detect illegal hunting and logging
14.12.2017 | Gesellschaft für Ökologie e.V.

nachricht How fires are changing the tundra’s face
12.12.2017 | Gesellschaft für Ökologie e.V.

All articles from Ecology, The Environment and Conservation >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: First-of-its-kind chemical oscillator offers new level of molecular control

DNA molecules that follow specific instructions could offer more precise molecular control of synthetic chemical systems, a discovery that opens the door for engineers to create molecular machines with new and complex behaviors.

Researchers have created chemical amplifiers and a chemical oscillator using a systematic method that has the potential to embed sophisticated circuit...

Im Focus: Long-lived storage of a photonic qubit for worldwide teleportation

MPQ scientists achieve long storage times for photonic quantum bits which break the lower bound for direct teleportation in a global quantum network.

Concerning the development of quantum memories for the realization of global quantum networks, scientists of the Quantum Dynamics Division led by Professor...

Im Focus: Electromagnetic water cloak eliminates drag and wake

Detailed calculations show water cloaks are feasible with today's technology

Researchers have developed a water cloaking concept based on electromagnetic forces that could eliminate an object's wake, greatly reducing its drag while...

Im Focus: Scientists channel graphene to understand filtration and ion transport into cells

Tiny pores at a cell's entryway act as miniature bouncers, letting in some electrically charged atoms--ions--but blocking others. Operating as exquisitely sensitive filters, these "ion channels" play a critical role in biological functions such as muscle contraction and the firing of brain cells.

To rapidly transport the right ions through the cell membrane, the tiny channels rely on a complex interplay between the ions and surrounding molecules,...

Im Focus: Towards data storage at the single molecule level

The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.

Over the past few years, the building blocks of storage media have gotten ever smaller. But further miniaturization of the current technology is hindered by...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

See, understand and experience the work of the future

11.12.2017 | Event News

Innovative strategies to tackle parasitic worms

08.12.2017 | Event News

AKL’18: The opportunities and challenges of digitalization in the laser industry

07.12.2017 | Event News

 
Latest News

Engineers program tiny robots to move, think like insects

15.12.2017 | Power and Electrical Engineering

One in 5 materials chemistry papers may be wrong, study suggests

15.12.2017 | Materials Sciences

New antbird species discovered in Peru by LSU ornithologists

15.12.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>