Navigation Links
Marine protected areas conserve Mediterranean red coral
Date:5/11/2010

A team of Spanish and French researchers has undertaken a pioneer analysis of red coral populations in the oldest Marine Protected Areas (MPA) in the Mediterranean and the impact that fishing activity has had. Results show that MPAs are a guarantee for conserving this species.

Mediterranean red coral (Corallium rubrum) has been highly valued for jewellery since ancient times. But intensive fishing, particularly in shallow waters, has transformed populations and hindered the recovery of this species along the Mediterranean coastline, where the colonies of coral at depths of less than 50 metres are now very small. Fishing and now climate change threaten the persistence of this slowing growing species which also boasts slow population dynamics.

A team of scientists has analysed the three oldest Marine Protected Areas in the Mediterranean Banyuls, Carry-le-Rouet and Scandola, off the island of Corsica to quantify the impact of human activity and ascertain how efficient MPAs are in conserving red coral, as the latter are "a vital tool" when it comes to observing the evolution of populations in the absence of fishing.

"The problem with studying a species that grows so slowly is that populations need to be monitored over long periods of time to guarantee sufficient data are obtained to estimate how populations have evolved," Cristina Linares, the author of the article and a researcher from the Department of Ecology at the University of Barcelona told SINC.

The study, which was published recently in the journal Marine Ecology Progress Series, shows that MPAs are "a slow but effective tool for conserving Mediterranean red coral populations," Joaquim Garrabou, co-author of the article and a researcher at the Institute of Marine Sciences (CSIC) declared.

According to the scientists, Mediterranean red coral cannot be considered an endangered species. This opinion is justified by the extensive distribution of dense populations all over the Mediterranean Basin and the fact that some colonies with basal diameters of less than two millimetres are now sexually fertile.

Three Decades of Protection

The researchers chose these three Marine Protected Areas because they are 30 years old. They forecast the structure of red coral populations when they were created, and three decades later, they have returned to repeat the process.

According to Linares, "these MPAs are home to extraordinarily large colonies, at depths of less than 50 metres and also deep-dwelling populations, in comparison to the populations studied previously". This confirms that MPAs are effective as measures to conserve this species, "providing, as is the case in these three MPAs, that they are well managed and that constant surveillance guarantees the protection of this species," the authors state.

"But the forecast for the future of populations reveals that 30 years of protection are not enough to allow colonies to reach the size of those observed in the 1960s (with diameters of around 45 mm)", Garrabou underlines.

Linares warns that if the colonies continue to diminish, the resilience of this species (its ability to absorb disturbances without suffering changes) will be affected. "The lack of large colonies has significant implications for future of populations, because it is these colonies that contribute to reproduction and, therefore, the persistence of these populations," the researcher says.


'/>"/>

Contact: SINC
info@plataformasinc.es
0034-914-251-820
FECYT - Spanish Foundation for Science and Technology
Source:Eurekalert  

Related biology news :

1. Marines land at UO, leave with plans to wear Oregon-made training suits
2. Gulf of Mexico dead zone to be studied by University of Texas at Austin marine scientists
3. US Army, US Navy, US Air Force, US Marines, US Department of Defense conference held at UH
4. Scripps scientists discover fluorescence in key marine creature
5. Pollution from marine vessels linked to heart and lung disease
6. Marine scientists warn human safety, prosperity depend on better ocean observing system
7. Present-day species of piranha result from a marine incursion into the Amazon Basin
8. Global climate change: The impact of El Niño on Galápagos marine iguanas
9. Global climate change: The impact of El Nio on Galpagos marine iguanas
10. Why diving marine mammals resist brain damage from low oxygen
11. Resilience concepts poised to aid management of coastal marine ecosystems
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Marine protected areas conserve Mediterranean red coral
(Date:2/8/2017)... 8, 2017 About Voice Recognition Biometrics Voice ... it against a stored voiceprint template. Acoustic features ... and tone are compared to distinguish between individual ... as most PCs already have a microphone and ... recognition biometrics are most likely to be deployed ...
(Date:2/8/2017)... Report Highlights The global biosurgery ... billion in 2016 at a compound annual growth rate ... Includes - An overview of the global market for ... from 2015 and 2016, and projections of compound annual ... market on the basis of product type, source, application, ...
(Date:2/6/2017)... 6, 2017 According to Acuity Market ... border authorities to continue to embrace biometric and ... 2143 Automated Border Control (ABC) eGates and 1436 ... more than 163 ports of entry across the ... achieving a combined CAGR of 37%. APC Kiosks ...
Breaking Biology News(10 mins):
(Date:2/23/2017)... , Feb. 23, 2017  MIODx announced today ... two key immunotherapy technologies from the University of ... a method to monitor a patient for response ... and CTLA-4.  The second license extends the technology ... is likely to have an immune-related adverse event ...
(Date:2/23/2017)... Antonio, TX (PRWEB) , ... February 23, 2017 ... ... Drug Administration (FDA) de novo clearance to begin marketing the SPEAC® System, the ... indicated for adults at home or in healthcare facilities during periods of rest. ...
(Date:2/23/2017)... (PRWEB) , ... February 23, 2017 , ... The ... announce a new partnership with Compass Research . GGI's mission is to advance ... vaccine to a child in need in honor of each clinical trial volunteer. The ...
(Date:2/23/2017)... USA, and CARDIFF, UK (PRWEB) , ... February ... ... international society for optics and photonics , have been named Fellows of the ... significant scientific and technical contributions in the multidisciplinary fields of optics, photonics, and ...
Breaking Biology Technology: