Navigation Links
DNA barcoding to monitor marine mammal genetic diversity

Marine mammals are flagship and charismatic species, very attractive for the general public. Nowadays, they are also considered as highly relevant sentinel of the marine realm. Their presence and their welfare in an area is thought to indicate the health of the place, whereas their disappearance, their displacement, or a decrease in their abundance or health could reflect negative environmental changes, whether of anthropogenic origin or not.

Monitoring marine mammal biodiversity is often difficult to perform. If some species can be easily observed, others are more difficult to detect, because for instance, of their scarcity or their discrete behavior. One of the solution suggested by scientists is based on the organization of stranding networks, listing and recording marine mammal strandings, which represent a cost-effective means to follow the marine mammal biodiversity.

Researchers from Ocanopolis and from the Laboratory BioGeMME (Biologie et Gntique des Mammifres Marins dans leur Environnement) of the University of Brest, in collaboration with the Parc naturel marin d'Iroise and PELAGIS, have evaluated the usefulness of DNA barcoding in the monitoring of marine mammal biodiversity. They confirmed the species identifications performed by field correspondents, identified degraded carcasses or parts of carcasses, and examined intraspecific genetic variations for the harbour porpoise and the grey seal, undetectable by visual observation.

The conclusions of their study, published in a special issue of the open access journal Zookeys dedicated to DNA barcoding (DNA barcoding: a practical tool for fundamental and applied biodiversity research), are that the use of DNA barcoding in conjunction with a stranding network will clearly increase the accuracy of the monitoring of marine mammal biodiversity. Global climate change, as well as more localized environmental changes (some of which are caused by humans), has impacts on the marine realm. A routine use of DNA barcoding to monitor marine mammal biodiversity will clearly increase our capacity to detect such impacts, which is a necessary first step to take appropriate conservation measures.

In France, the French marine mammal stranding recording program has been created at the beginning of the 70s by the CRMM (Centre de Recherche sur les Mammifres Marins, La Rochelle, presently the Joint Service Unit PELAGIS, UMS 3462, University of La Rochelle- CNRS). The network comprises about 260 field correspondents, members of organizations or volunteers (Peltier et al. 2013, PloS One, e62180).

In Brittany (a region located at the northwest of France), the network is coordinated by Ocanopolis in Brest. In this area, and all species included, an average of 150 animals strand each year, representing, in the last ten years, 14 species of cetaceans and five species of pinnipeds. These species include for instance, common and bottlenose dolphins, harbour porpoises, but also larger animals like minke whales and fin whales. Some rare stranding events include deep-diving or exotic species, such as arctic seals.


Contact: Jean-Luc Jung
Pensoft Publishers

Related biology news :

1. Life Technologies Collaborates with Canadian Centre for DNA Barcoding on Species Biodiversity Study
2. DNA barcoding alone sufficient to detect fraudulent deer products
3. Study: DNA barcoding can ID natural health products
4. DNA barcoding verified the discovery of a highly disconnected crane fly species
5. Learning to predict sickle cell crisis and monitor treatment
6. Ambitious science program will aid fishing industry and monitor effects of climate change on Europes shellfish
7. New Ocean Sensing and Monitoring brings tutorial approach to latest advances
8. SU biologist develops method for monitoring shipping noise in dolphin habitat
9. American Chemical Society podcast: Improving disease monitoring in remote locations
10. New generation of micro sensors for monitoring ocean acidification
11. NIH funds researchers using light to control and monitor neural activity
Post Your Comments:
Related Image:
DNA barcoding to monitor marine mammal genetic diversity
(Date:11/17/2015)... November 17, 2015 Paris ... 2015.  --> Paris , qui ... DERMALOG, le leader de l,innovation biométrique, a inventé ... passeports et empreintes sur la même surface de balayage. ... et l,autre pour les empreintes digitales. Désormais, un seul ...
(Date:11/12/2015)...  A golden retriever that stayed healthy despite having ... provided a new lead for treating this muscle-wasting disorder, ... of MIT and Harvard and the University of São ... Cell, pinpoints a protective gene that boosts ... The Boston Children,s lab of Lou Kunkel , ...
(Date:11/10/2015)... 10, 2015  In this report, the ... of product, type, application, disease indication, and ... report are consumables, services, software. The type ... biomarkers, efficacy biomarkers, and validation biomarkers. The ... diagnostics development, drug discovery and development, personalized ...
Breaking Biology News(10 mins):
(Date:11/25/2015)... Md. , Nov. 25, 2015  PharmAthene, Inc. ... Directors has adopted a stockholder rights plan (Rights Plan) ... net operating loss carryforwards (NOLs) under Section 382 of ... --> PharmAthene,s use of its NOLs ... "ownership change" as defined in Section 382 of the ...
(Date:11/25/2015)... Nov. 25, 2015 /PRNewswire/ - Aeterna Zentaris Inc. (NASDAQ: ... business and prospects remain fundamentally strong and highlights ... doxorubicin) recently received DSMB recommendation to continue the ... review of the final interim efficacy and safety ... Endpoint in men with heavily pretreated castration- and ...
(Date:11/24/2015)... KUALA LUMPUR, Malaysia , Nov. 24, 2015 ... the global contract research organisation (CRO) market. The ... to result in lower margins but higher volume ... With increased capacity and scale, however, margins in ... Contract Research Organisation (CRO) Market ( ...
(Date:11/24/2015)... Worcester, Mass. (PRWEB) , ... November 24, 2015 ... ... need to maintain healthy metabolism. But unless it is bound to proteins, copper ... Institutes of Health (NIH), researchers at Worcester Polytechnic Institute (WPI) will conduct a ...
Breaking Biology Technology: