Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:


Alternative approaches to marine management prove successful in reef conservation

By performing simultaneous studies of reef conservation and socioeconomic charateristics of a set of reef management systems, researchers have gained new insight into the factors that can contribute to effective marine conservation strategies.

The researchers found evidence suggesting that when resources for conservation enforcement are lacking, management strategies designed to meet community goals can succeed in compliance and conservation to a greater degree than strategies that are based on different priorities. The findings are reported by Timothy McClanahan and Michael Marnane of the Wildlife Conservation Society and colleagues at James Cook University and Fagatele Bay National Marine Sanctuary in American Samoa. The work appears in the July 25th issue of Current Biology, published by Cell Press.

In their work, the researchers examined three different types of reef management systems in Indonesia and Papua New Guinea. The sites included four national parks, which encompassed large areas and were managed and enforced by the national government with the explicit goal of sustainable use and improvement of reef conditions; four "co-managed" reserves, which encompassed small areas and were managed and enforced by the community in partnership with non-governmental organizations, tourism operators, and universities, with a range of social and economic goals; and three traditionally managed areas, which also encompassed small areas but were instigated and maintained by the community with the goals of providing food for celebratory events or goals that in some other way provided a social benefit to the community.

The researchers performed underwater censuses of key reef features, and found that two--the average size and biomass of targeted fish species--were found to be different in managed areas compared to similar non-managed areas. A key finding was that three of the four sites that exhibited the greatest average size and biomass of fishes within the management areas were the self-governing, traditionally managed systems. The other site was one of the co-managed systems. The authors note that, contrary to the idea that permanent reef closures are the most effective ways to improve reef ecosystem health, none of the traditional management regimes involved permanent reef closures--instead, fishing was limited in other ways. The fourth, co-managed site did implement a permanent reef closure.

The authors also noted that the traditionally managed sites were implemented to meet community goals, rather than goals that explicitly reflect western concepts of ecological conservation. In addition, the fourth, co-managed site, was designed largely from a social perspective after community consultation, and was chosen because of its high visibility to the community. In their socioeconomic survey of the various sites under study, the authors found that the sites that were effective at conserving resources had higher compliance with conservation rules, were visible to the local community, and had been under management for a longer period of time than the less successful protected areas. The areas associated with the successful sites also tended to have less involvement in formal or professional economic activities, had lower populations, and less overall wealth. The authors' findings indicated that high compliance at the traditionally managed areas--despite a lack of formal enforcement patrols--was probably influenced by the locations of the areas near the village, the existence of traditional social barriers that limited use by outsiders, and understanding of the relationship between human-environment interactions and local benefits.

On the basis of their findings, the authors propose that while large, permanent marine-protected areas may provide the best protection for species that are at particular risk from overfishing, a combination of such large marine protected areas and traditionally managed systems may represent the best overall solution for meeting conservation and community goals and reversing the degradation of reef ecosystems.

Heidi Hardman | EurekAlert!
Further information:

More articles from Ecology, The Environment and Conservation:

nachricht Dispersal of Fish Eggs by Water Birds – Just a Myth?
19.02.2018 | Universität Basel

nachricht Removing fossil fuel subsidies will not reduce CO2 emissions as much as hoped
08.02.2018 | International Institute for Applied Systems Analysis (IIASA)

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: Space observation with radar to secure Germany's space infrastructure

Satellites in near-Earth orbit are at risk due to the steady increase in space debris. But their mission in the areas of telecommunications, navigation or weather forecasts is essential for society. Fraunhofer FHR therefore develops radar-based systems which allow the detection, tracking and cataloging of even the smallest particles of debris. Satellite operators who have access to our data are in a better position to plan evasive maneuvers and prevent destructive collisions. From April, 25-29 2018, Fraunhofer FHR and its partners will exhibit the complementary radar systems TIRA and GESTRA as well as the latest radar techniques for space observation across three stands at the ILA Berlin.

The "traffic situation" in space is very tense: the Earth is currently being orbited not only by countless satellites but also by a large volume of space...

Im Focus: Researchers Discover New Anti-Cancer Protein

An international team of researchers has discovered a new anti-cancer protein. The protein, called LHPP, prevents the uncontrolled proliferation of cancer cells in the liver. The researchers led by Prof. Michael N. Hall from the Biozentrum, University of Basel, report in “Nature” that LHPP can also serve as a biomarker for the diagnosis and prognosis of liver cancer.

The incidence of liver cancer, also known as hepatocellular carcinoma, is steadily increasing. In the last twenty years, the number of cases has almost doubled...

Im Focus: Researchers at Fraunhofer monitor re-entry of Chinese space station Tiangong-1

In just a few weeks from now, the Chinese space station Tiangong-1 will re-enter the Earth's atmosphere where it will to a large extent burn up. It is possible that some debris will reach the Earth's surface. Tiangong-1 is orbiting the Earth uncontrolled at a speed of approx. 29,000 km/h.Currently the prognosis relating to the time of impact currently lies within a window of several days. The scientists at Fraunhofer FHR have already been monitoring Tiangong-1 for a number of weeks with their TIRA system, one of the most powerful space observation radars in the world, with a view to supporting the German Space Situational Awareness Center and the ESA with their re-entry forecasts.

Following the loss of radio contact with Tiangong-1 in 2016 and due to the low orbital height, it is now inevitable that the Chinese space station will...

Im Focus: Alliance „OLED Licht Forum“ – Key partner for OLED lighting solutions

Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP, provider of research and development services for OLED lighting solutions, announces the founding of the “OLED Licht Forum” and presents latest OLED design and lighting solutions during light+building, from March 18th – 23rd, 2018 in Frankfurt a.M./Germany, at booth no. F91 in Hall 4.0.

They are united in their passion for OLED (organic light emitting diodes) lighting with all of its unique facets and application possibilities. Thus experts in...

Im Focus: Mars' oceans formed early, possibly aided by massive volcanic eruptions

Oceans formed before Tharsis and evolved together, shaping climate history of Mars

A new scenario seeking to explain how Mars' putative oceans came and went over the last 4 billion years implies that the oceans formed several hundred million...

All Focus news of the innovation-report >>>



Industry & Economy
Event News

New solar solutions for sustainable buildings and cities

23.03.2018 | Event News

Virtual reality conference comes to Reutlingen

19.03.2018 | Event News

Ultrafast Wireless and Chip Design at the DATE Conference in Dresden

16.03.2018 | Event News

Latest News

For graphite pellets, just add elbow grease

23.03.2018 | Materials Sciences

Unique communication strategy discovered in stem cell pathway controlling plant growth

23.03.2018 | Agricultural and Forestry Science

Sharpening the X-ray view of the nanocosm

23.03.2018 | Physics and Astronomy

Science & Research
Overview of more VideoLinks >>>