Compliments were flying on the evening of NARA’s AGM on the success of the seminar held after the AGM-14th February. The seminar theme was The Future of Wild Brown Trout and featured a panel of expert speakers; Mr Eamonn Moore, Vice Chairman of TAFI and Chairman of the Angling Council of Ireland; Dr. Ciaran Byrne from Central Fisheries Board who is CEO Designate of Inland Fisheries Ireland ;Dr Martin O’Grady Senior Researcher ,Central Fisheries Board and Dr. Greg Forde, CEO Western Region Fisheries Board.

The seminar was well attended by members of NARA, TAFI, Members of Fisheries Boards and anglers and there was lively participation in the event. NARA would like to thank all the speakers and in particular the members of TAFI who participated.

STRESSES ON TROUT WATERS

 Eamonn Moore commenced  the proceedings with his paper” Stresses on Trout Waters” and  nominated drainage, abstraction, discharges, and angling issues as contributors to the stresses exerted on trout waters.

Drainage

With the advent of more efficient drainage systems the water arrives in the main channels with much greater rapidity and the natural controls are unable to accommodate this thus giving rise to the dreadful flooding of recent times.  This runoff can carry unwanted pollutants directly into water courses.  The implementation of the river basin management plans of the water framework directive, which incorporates the floods directive, will ensure that many of these issues are addressed.

Abstractions

The regulation of this activity is a relatively recent control and only relates to abstractions of 10m2/day and greater.  The cumulative effect of unregulated abstractions from  rivers and streams has the potential to reduce levels upstream of the abstraction point and affect the levels of the feeder streams of the main channel, this in turn can lower the levels in the fish spawning areas.  The speaker recommended that all existing abstraction points should be inventoried and recorded and that proposals for abstraction for more than 5m2/day to require an abstraction licence.  Additionally, proposals for abstraction should be assessed for impact on the river system above and below the proposed abstraction point.

Discharges

Pollutions from habitation, industry, agriculture and poor waste management practices has produced the most appalling damage to water.

Industrial discharges require an integrated pollution control licence from the Environmental Protection Agency.  Breaches of this type of licence are usually catastrophic.  Local authority licence discharges relate to hotels, restaurants, fast food outlets, small industries etc., these licences are rarely refused and many breach their conditions bringing severe stresses for a short period of time to the receiving waters.  Local authority waste water treatment plants may suffer from inadequate capacity leading to serious discharges into water courses.  In addition septic tanks continue to pose a considerable threat to local waters.

Unlicensed discharges from illegal landfills or illegal connections to the sewage system along with the spreading of farm generated slurry in wet periods or to close to water courses also present problems.  All these discharges are contrary to the objectives of the water framework directive and these are serious issues to be addressed by the River Basin District management plans when they are implemented later this year.

Angling issues

Many of our fisheries there are now being subjected to angling pressure which cannot be supported by the wild stock levels.  Angling clubs should consider resting waters and curtailing the number of rods on the water at any one time.  Boat angling can present one of the greatest threats to the bio security of angling waters.  It is necessary that there is a well understood and practiced procedure to ensure that all boats and anglers gear are sanitised and free from carrying contaminants before accessing other waters.

FISHERIES MANAGEMENT

Ciaran Byrne  who is to lead the new national fisheries  organisation Inland Fisheries Ireland (IFI) which will replaces the Regional Fishery Boards presented his paper on fisheries management.

The 8 statutory agencies (Regional Fishery Boards) will be replaced by one agency which will provide for much clearer policy direction for fisheries.  The vision for the future is that IFI will provide for a national prospective on fisheries management providing for clear national policies and emerge as a lean effective efficient inland fisheries organisation governed on a national basis with a strong responsive presence in specified areas aligned with River Basin Districts.

The new body IFI will have one board of nine members and will be supported by a national forum providing for interaction with stakeholders.  The new organisation will have a strong regional presence but with the governed on a national basis.  The new organisation will provide for development of national policies to underpin the management of fisheries including wild brown trout fisheries and will provide for greater empowerment of the sector in the areas of the development / protection. It is planned to revise the present fisheries legislation now enshrined in the 1959 Act and bring forward modernised and strengthened legislation.  Also, of critical importance is having a representative angling body as a coherent sector working together.

  Unfortunately due to be present national economic circumstances discretionary funding for fisheries is virtually non existent and the effect of cuts in funding, public sector recruitment embargo and reducing staff numbers will impinge on the progress of IFI.

TROUT GENETIC STUDIES

Martin O’Grady delivered an interesting an intriguing paper on Trout Genetic Studies in Ireland.  It has long been known that separate species of trout coexisted in Lough Melvin.  The Ferox trout which is a fish feeder, the SonaghanTrout which feeds mainly on plankton, and The Gillaroo which targets snails and shrimps. Genetic studies confirmed that all three were distinct genetic species.  Spanish fishery studies also found a close link between pigmentation patterns and genetic make up of trout.

 Recent studies of the trout population in Loch Corrib have identified a number of discrete genetic groups existing side by side in the lake.  Five distinct genetic groups have been identified so far.  The western group originating from streams on the western Oughterard side of the lake.  The eastern group originating from Cornamona and the north eastern side of the lake. The Cong group from to Cong river and the Grange group originating from the Grange catchment and the Abbert group originating from the Abbert catchment.  The contributions of each group to the total population are disproportionate to their wetted areas.  The Grange stock made no contribution to the lake population despite its wetted area being similar to the Abbert.  The vast majority of Ferox trout spawn in the Cong River. 

To date the Rivers not sampled make up approximately 18 per cent of the stock.

SUMMARY OF FINDINGS

Most trout home to their natal stream to spawn.

The Abbert, Cong and Grange fish our very different to the other groups.

There appears to be a high level of gene flow from the Cornamona to the Bealnabrack and Oughterard and from the Cross to the Black.  This suggests that the release of fish from the Oughterard hatchery is having a negligible effect on wild populations.

The Grange genotype suggests that they have been an isolated population for a very long time. In contrast the Abbert  stock is different and may have only evolved following their surface connection of this channel to the Clare river The similarity of so many Rivers on the western side of the lake, in genetic terms, may well reflect the devastation of so much habitat in these catchments from overgrazing- i.e.  a significant decline in trout numbers in these rivers could be responsible for this trend.

The findings will have a major bearing on future conservation and fishery management planning in this catchment.

 

 

FUTURE RESEARCH

Martin stated that an opportunity has arisen to look at the genetic makeup of trout in Loch Mask and indicated that the O.P. W. is willing to commit some or all of the current Environmental Rivers Enhancement Programme (E.R.E.P.)  budget(1.1M./annum) as the seed capital towards this exercise provided this project can continue in its current form.

 

INVASIVE WEED IN LOUGH CORRIB

Greg Forde gave an illustrated and frightening presentation on the spread of the weed Lagarosiphon major in Lough Corrib.  Fishery staff first noticed exceptional weed growth in Rinerroon Bay in 2005 and assistance was sought in identifying the weed.  The weed had not been recorded in the wild in Ireland before this.  The weed is a native of Africa and grows vigorously in our conditions and will grow to the surface in up to six metres of water.  Since 2005 the weed has spread rapidly in the upper Corrib from 9 sites that year to 113 sites in 2009.

He outlined the efforts and procedures to date that have been employed in an effort to control the weed including cutting and collection, light exclusion using plastic sheeting jute sacking and geotextile and presented illustrations of these operations in progress.

  6000 tonnes of the weed had been cut and removed, and 1000 metre 2 to has been covered at 109 sites.   Rinerroon Bay has been restored to angling condition.  However, funding for this work has remained the problem and while funds had been secured from Galway County Council, Heritage Council and the Western Fisheries Development Society there is no permanent source of funding to sustain this work.

SCIENTIFIC STUDY

Parallel to Western fishery boards work on the weed a scientific study under the Life programme funded by the E.U.  is in progress.Dr. Joe Caffrey of the central fisheries board is spearheading this research the objectives of the research are;

 Control and eradication of the weed

The restoration of the natural habitat

Public awareness

University College Dublin in collaboration with Grahamstown University in South Africa is researching a possibility of biological control of the weed.

 

 

PROBLEMS

 There is no funding for the day to day operation of the weed control program, there is no mechanism for anglers to contribute to the operation and the weed continues to spread- new sites are been discovered constantly.

BIOSECURITY PLAN FOR A LOUGH MASK

To prevent the spread of the problem to neighbouring Lough Mask it is vital that a  bio security plan be put in place immediately involving;

Buy- in of all agencies-state bodies local authorities etc,.

Involvement of stakeholders-angling clubs, angling clubs and private operators.

Working group-to progress the prevention recommendations

Education and public awareness.

Finance-boat registration, boat cleaning certificate, agencies, private operators.

Action before it is too late.