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Displaying items by tag: bioindicator

Dublin has yet another thing to celebrate with the news that wild Atlantic salmon have returned to what was long regarded as the dirtiest of the capital's inland waterways.
The Irish Independent reports that the fish have been spotted along the banks of the Tolka between Glasnevin and Finglas for the first time in at least 100 years.
Efforts to clean the river in recent years, as well as the removal of man-made weirs, are thought to have aided the recovery of the Tolka, which now provides plentiful nutrients for migratory fish.
Atlantic salmon in particular are considered by scientists to be a 'bio-indicator' in that they require a very high standard of water, so their presence in a given area defines it as a healthy environment.
The Tolka joins the Liffey and the Dodder in the list of Dublin rivers hosting thriving stocks of young fry in what has been a bumper year for salmon angling across the country.
The Irish Independent has more on the story HERE.

Dublin has yet another thing to celebrate with the news that wild Atlantic salmon have returned to what was long regarded as the dirtiest of the capital's inland waterways.

The Irish Independent reports that the fish have been spotted along the banks of the Tolka between Glasnevin and Finglas for the first time in at least 100 years.

Efforts to clean the river in recent years, as well as the removal of man-made weirs, are thought to have aided the recovery of the Tolka, which now provides plentiful nutrients for migratory fish.

Atlantic salmon in particular are considered by scientists to be a 'bio-indicator' in that they require a very high standard of water, so their presence in a given area defines it as a healthy environment.

The Tolka joins the Liffey and the Dodder in the list of Dublin rivers hosting thriving stocks of young fry in what has been a bumper year for salmon angling across the country.

The Irish Independent has more on the story HERE.

Published in Angling

Naval Visits focuses on forthcoming courtesy visits by foreign navies from our nearest neighbours, to navies from European Union and perhaps even those navies from far-flung distant shores.

In covering these Naval Visits, the range of nationality arising from these vessels can also be broad in terms of the variety of ships docking in our ports.

The list of naval ship types is long and they perform many tasks. These naval ships can include coastal patrol vessels, mine-sweepers, mine-hunters, frigates, destroyers, amphibious dock-landing vessels, helicopter-carriers, submarine support ships and the rarer sighting of submarines.

When Naval Visits are made, it is those that are open to the public to come on board, provide an excellent opportunity to demonstrate up close and personal, what these look like and what they can do and a chance to discuss with the crew.

It can make even more interesting for visitors when a flotilla arrives, particularly comprising an international fleet, adding to the sense of curiosity and adding a greater mix to the type of vessels boarded.

All of this makes Naval Visits a fascinating and intriguing insight into the role of navies from abroad, as they spend time in our ports, mostly for a weekend-long call, having completed exercises at sea.

These naval exercises can involve joint co-operation between other naval fleets off Ireland, in the approaches of the Atlantic, and way offshore of the coasts of western European countries.

In certain circumstances, Naval Visits involve vessels which are making repositioning voyages over long distances between continents, having completed a tour of duty in zones of conflict.

Joint naval fleet exercises bring an increased integration of navies within Europe and beyond. These exercises improve greater co-operation at EU level but also internationally, not just on a political front, but these exercises enable shared training skills in carrying out naval skills and also knowledge.

Naval Visits are also reciprocal, in that the Irish Naval Service, has over the decades, visited major gatherings overseas, while also carrying out specific operations on many fronts.

Ireland can, therefore, be represented through these ships that also act as floating ambassadorial platforms, supporting our national interests.

These interests are not exclusively political in terms of foreign policy, through humanitarian commitments, but are also to assist existing trade and tourism links and also develop further.

Equally important is our relationship with the Irish diaspora, and to share this sense of identity with the rest of the World.