Invasive Species Questionnaire

When invasive species become established they cause significant damage to freshwater ecosystems, f...

Invasive species workshop at IT Sligo

With more than 10 aquatic invasive species detected in Irish waters in the last decade, the importan...

Invasive Species Alert! Freshwater Jellyfish

Freshwater jellyfish (also known as peach-blossom jellyfish) are newly recorded in Ireland since A...

C·I·B researchers make waves at European invasions conference

The European Inland Fisheries and Aquaculture Advisory Commission (EIFAAC) and Inland Fisheries Ir...

IFI Invasive Species App

Inland Fisheries Ireland's new smart phone app is now available to download from the Google Play a...

Bio-security measures at World Cup Trout Fly Angling Championship on Lough Mask

The World Cup Trout Fly Angling Championship took place on Lough Mask between the 2nd and 6th of ...

Japanese knotweed (Fallopia japonica) causing problems in the UK

A recent article from Great Britain reported that Japanese knotweed (Fallopia japonica) has been ...

Control of the highly invasive Water Primrose

In October 2009, staff from Inland Fisheries Ireland confirmed the presence Ludwigia grandiflora...

Follow up on Crassula trial in Natterjack toad pond at Castlegregory Golf Course

In January 2012 staff from IFI, the National Parks and Wildlife Service (NPWS) and the managemen...

Native Plants Recolonize Grand Canal

Earlier this year IFI reported on the attempted eradication of New Zealand pigmyweed (Crassula hel...

Invasive Species Biosecurity Guidelines for Scuba Diving

Aquatic Invasive Species (AIS) and fish parasites or diseases are readily transferred from one wa...

Success with ‘balsam bashes’ around the country

As part of Fisheries Awareness Week IFI and Dublin City Council (DCC) organised a ‘Balsam Bash’ in...

Asian clam trials using Cockle harvester on River Barrow

In April 2012 staff from IFI supervised trials using a cockle harvester to remove the invasive Asian...

  • Invasive Species Questionnaire

  • Invasive species workshop at IT Sligo

  • Invasive Species Alert! Freshwater Jellyfish

  • C·I·B researchers make waves at European invasions conference

  • IFI Invasive Species App

  • Bio-security measures at World Cup Trout Fly Angling Championship on Lough Mask

  • Japanese knotweed (Fallopia japonica) causing problems in the UK

  • Control of the highly invasive Water Primrose

  • Follow up on Crassula trial in Natterjack toad pond at Castlegregory Golf Course

  • Native Plants Recolonize Grand Canal

  • Invasive Species Biosecurity Guidelines for Scuba Diving

  • Success with ‘balsam bashes’ around the country

  • Asian clam trials using Cockle harvester on River Barrow

Invasive Species

Invasive species

Non-native invasives are species that have been introduced, generally by human intervention, outside their natural range and whose establishment and spread can threaten native ecosystems.

The number of non-native freshwater species recorded in Irish watercourses increased significantly in the 20th century. However, not all non-native species are invasive and current problems are caused by only a small percentage of those species that have been introduced. The presence of a truly invasive species is evidenced by a demonstrable adverse impact on native communities or habitats.

Many of the most problematic species present in Ireland today were introduced in the last 20 years and some as recently as 2005. The rate of species introductions is accelerating because of increased international travel and trade.

The problem?

What is the problem and how is it caused?

Invasive species represent one of the greatest threats to biodiversity, second only to that caused by direct habitat destruction. They do this by competitively excluding or out-competing our less robust native species, by preying on native species or by altering the natural aquatic or riparian habitat in which they reside.

In addition to their biological effects, invasive species can adversely impact the recreational and amenity use of infested watercourses by restricting angling, boating, swimming and other water-based leisure pursuits. They can impact on industry by clogging engines, turbines and water intake pipes. These adverse effects have resulted in significant costs to the economy.

How are they introduced?

How are they introduced and spread?

Non-native invasive species are commonly introduced by human action, either accidentally (e.g. hull fouling or ballast water) or intentionally (e.g. water garden planting or stocking). Spread within the country is often mediated by water flow in river catchments

Awareness

Increasing awareness

The primary purpose of this information is to create an awareness of the existence of non-native invasive species in Ireland and of the environmental hazard that they represent. It should also help one to identify some of the more high impact invasive species that are present in and adjacent to our waters.

Another objective is to actively discourage people from accidentally or intentionally spreading invasive plants, invertebrates or fish. The spread of these species can be minimised by promoting good environmentally sensitive recreational behaviour and sound aquatic gardening practices.

Invasive Species Group

Invasive Species Group

The Invasive Species Group was established from within the staff of IFI to help stop the introduction and spread of invasive species and harmful pathogens. The Invasive Species Group comprises:

Dr Joe Caffrey - Chairman
Senior Research Officer
Swords Office

Liam Murray
Assistant Inspector
ERBD, Blackrock Office

Alan Cullagh
Inspector
SERBD, Clonmel Office

Tim Moore
Fisheries Officer
SWRBD, Macroom Office

Oisin Naughton
Catchment Manager
Shannon RBD (Upper Region), Limerick Office

Colum Walsh
Fisheries Officer
Shannon RBD (Lower Region). Limerick Office

Ruairi O’ Conchuir
Mulkear Project
Shannon RBD (Mulkear Life Project), Limerick Office

Liam Gavin
Assistant Inspector
Western RBD – Galway Office

Bryan Ward 
Assistant Inspector
Western RBD - Ballina Office

Brendan Maguire
Senior Fisheries Environmental Officer
NWRBD -  Ballyshannon Office

Ailish Keane
Fisheries Environmental Officer
NWRBD - Cavan Office

Cormac Goulding
Fisheries Officer
NWRBD - Ballyshannon Office

Frank Greene
Assistant Inspector
NWRBD - Cavan Office

To contact any of these staff please use our contact forms here.

Help us

How can you help

Never dispose of non-native aquatic plants, invertebrates or fish in natural rivers, lakes or canals. Better still, only use native species in your ponds.

Always check for and remove any attached vegetation or obvious animal life from your boat when removing it from the water. Always drain any water from the boat or engine.

Wash all equipment (e.g. boat & trailer, fishing tackle and nets, waders or boots), preferably with hot water.

If you suspect you have discovered an alien species contact us via this website or phone us on 1890 34-74-24

 
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