HERE - Inland Fisheries Ireland

More documents

Recommendations

Info

Shannon International River Basin District Rivers Report 2009 4.1.9 The Owvane River (Limerick) Plate 4.9. The Owvane River upstream of the bridge in Loghill, Co. Limerick The Owvane River (Plate 4.9) is located in Co. Limerick. It flows in a northerly direction, joining the Shannon Estuary near the village of Loghill. Salmon and sea trout are both known to be present in this river but have declined in number in recent years and struggled to replenish themselves (O’Reilly, 2009). The survey site was located just outside Loghill (Fig. 4.22). Three electric-fishing passes were conducted using three bank-based electric-fishing units on the 15 th of September 2009 along a 45m length of river channel. Glide and cobble dominated the habitat and the substrate at this site respectively. The mean wetted width of the stretch surveyed was 13.7m, and the mean depth was 24.0cm. Macrophyte species present at this site included various mosses and liverworts, typical of shallow rocky streams. This survey was conducted quite close to the sea and had the common estuarine algae, Enteromorpha present, suggesting that the site was in close proximity to the river’s upper tidal limits. A total wetted area of 617m 2 was surveyed. 36
The Central and Regional <strong>Fisheries</strong> Boards Fig. 4.22. Location of the Owvane River surveillance monitoring site A total of five fish species were recorded in the Owvane River site. European eel was the most abundant species, followed by salmon, brown trout, flounder and three-spined stickleback (Table 4.9). Table 4.9. Density of fish (no./m 2 ), Owvane River site (fish density has been calculated as minimum estimates based on the first fishing) Species name Common name 0+ 1+ & older Total minimum density Anguilla anguilla European eel - - 0.0989 Salmo salar Salmon 0.0811 0.0130 0.0941 Salmo trutta Brown trout 0.0811 0.0130 0.0697 Platichthys flesus Flounder - - 0.0357 Gasterosteus aculeatus Three-spined stickleback - - 0.0130 All fish All fish - - 0.3114 European eels ranged in length from 7.9cm to 35.7cm (Fig. 4.23). Salmon ranged in length from 6.7cm to 15.1cm (Fig. 4.24). Three age classes (0+, 1+ and 2+) were present, accounting for approximately 87%, 8% and 5% of the total salmon catch respectively. Mean salmon L1 and L2 were 5.2cm and 7.9cm respectively (Appendix 2). 37
Page 3 and 4: The Central and Regional Fisheries
Page 37: The Central and Regional Fisheries
Page 89 and 90:
The Central and Regional Fisheries
Page 91:
The Central and Regional Fisheries
show all

HERE - Inland Fisheries Ireland

Create successful ePaper yourself

Delete template?

Save as template?