SCUBA News 217
27 June 2018
SCUBA News (ISSN 1476-8011)
Issue 217 - June/July 2018
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Quiet diving in the Caribbean, in the Pacific and in volcanic lakes. Lots to choose from in Nicaragua.
Great visibility and plenty of wrecks - try Greek island diving in the Med.
The Seychelles are protecting 210,000 square kilometres of ocean and welcoming scuba divers.
With features specially for photographers, save on liveaboard
visiting Galapagos Central Archipelago, Darwin And Wolf Islands.
Divers' help needed mapping seagrass with app
New research shows that a fifth of the world's biggest fisheries depend upon healthy seagrass meadows. The meadows are also extremely important for small-scale fisheries.
Seagrasses are marine flowering plants that form extensive meadows in shallow seas on all continents except Antarctica. A new study, by scientists at Cardiff and Stockholm Universities, concludes that seagrasses should be recognised and managed to maintain and maximise their role in global fisheries production.
In the Mediterranean, for example, seagrass covers less than 2% of the sea floor, but seagrass-associated fish and invertebrate species comprise 30%-40% of the total value of commercial fisheries landings.
One of the author's of the study, Dr Leanne Cullen-Unsworth, says: "Seagrass meadows support global fisheries productivity by providing nursery habitat for commercial fish stocks such as tiger prawns, conch, Atlantic cod and white spotted spinefoot".
Seagrass meadows are currently experiencing rapid decline with loss estimated at around 7% of their global distribution annually
How you can help
There is now an app for mapping Seagrass. You can become a citizen scientist and contribute to marine conservation with just a few taps of your phone. Get along to Seagrass Spotter and make your contribution.
Seagrass meadows support global fisheries production, Richard K.F. Unsworth Lina Mtwana Nordlund Leanne C. Cullen-Unsworth. Conservation Letters, 21 May 2018
Photos CC BY 4.0
Red Sea Coral can Survive Climate Change, but not Sewage and Excess Nutrients
Transparent Eel-like Robot Swims Silently Underwater
Oldest diver in the world is 94!
The animal that lives forever
Shark fisheries hunting dolphins and other marine mammals as bait
Deep-Sea Corals Win Protection in Gulf of Mexico
Third of Arabian Gulf's marine life could be extinct by 2090
How ocean pollution affects marine wildlife
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Photo credits: Tim Nicholson, Andrew Reay-Robinson
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