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Displaying items by tag: Glacier

#ANGLING - Climate change in the Atlantic may be a significant factor in the decline of wild salmon returning to their native rivers in Ireland - especially with the news that a section of ice twice the size of Manhattan has calved from a glacier in Greenland.

Angling correspondent Derek Evans writes in The Irish Times about the major ice sheet separation along the north-west coast of Greenland, which experts have attributed to warming ocean temperatures.

It is the second such indident to occur in the past three years, after the Petermann glacier lost some 97 square miles of ice in August of 2010.

As reported on Afloat.ie last year, the effects of climate change on the world's oceans are forcing species such as wild salmon to adapt by feeding in colder waters.

The Irish Times has more on the story HERE.

Published in Angling

Shipyards

Afloat will be focusing on news and developments of shipyards with newbuilds taking shape on either slipways and building halls.

The common practice of shipbuilding using modular construction, requires several yards make specific block sections that are towed to a single designated yard and joined together to complete the ship before been launched or floated out.

In addition, outfitting quays is where internal work on electrical and passenger facilities is installed (or upgraded if the ship is already in service). This work may involve newbuilds towed to another specialist yard, before the newbuild is completed as a new ship or of the same class, designed from the shipyard 'in-house' or from a naval architect consultancy. Shipyards also carry out repair and maintenance, overhaul, refit, survey, and conversion, for example, the addition or removal of cabins within a superstructure. All this requires ships to enter graving /dry-docks or floating drydocks, to enable access to the entire vessel out of the water.

Asides from shipbuilding, marine engineering projects such as offshore installations take place and others have diversified in the construction of offshore renewable projects, from wind-turbines and related tower structures. When ships are decommissioned and need to be disposed of, some yards have recycling facilities to segregate materials, though other vessels are run ashore, i.e. 'beached' and broken up there on site. The scrapped metal can be sold and made into other items.