Vegetation (Floating River Vegetation) - Office of Public Works
Vegetation (Floating River Vegetation) - Office of Public Works Vegetation (Floating River Vegetation) - Office of Public Works
tailed ordnance survey maps identifying survey sites assessed for floating river vegetation and the species recorded at each location can be found in Appendix D. Munster Connaught Leinster Fig. 4 Distribution of floating river vegetation recorded in each province surveyed Floating river vegetation recorded No floating river vegetation recorded 16
3.2.1 Floating river vegetation of the Lough Corrib SAC survey square Channel name Floating River Vegetation OPW SAC channel status Owenriff River Main scheme None visible – river in flood √ √ Site (1) None visible – river in flood Site (2) None visible – river in flood √ Site (3) None visible – river in flood Site (4) Callitriche stagnalis √ Loughseecon (Site 5) Fontinalis antipyretica Owenriff River (Site 6) None visible – river in flood √ √ Site (7) None visible – river in flood Site (8) Potamogeton polygonifolius, Callitriche stagnalis Site (9) Potamogeton polygonifolius Table 2 Floating river vegetation distribution of the Owenriff River survey square * River was in flood at the time of the survey therefore no floating river vegetation evident during the survey. Of the ten sites surveyed six were in flood and the other four were positive for floating river vegetation. In the case of site 8 and site 9 excess rainfall was beneficial to the growth of floating river vegetation by providing mountain streams with a prolonged level of water to support aquatic growth. A simple observation of the surrounding landscape of upland bog (section 2.3), would indicate a drier than average summer season in 2006. Channel name Floating River Vegetation OPW SAC channel status Clare River Main scheme Potamogeton perfoliatus, Fontinalis antipyretica √ Cregg River (Site 1) Potamogeton natans, Callitriche stagnalis √ √ Cregg River (Site 2) Potamogeton natans, Callitriche stagnalis √ √ Cregg River (Site 3) Ranunculus trichophyllus, Potamogeton natans, Callitriche stagnalis, Berula erecta, Fontinalis antipyretica √ Waterdale River (Site 4) None √ Clare River (Site 5) Potamogeton natans √ Table 3 Floating river vegetation distribution of the Clare River survey square Floating river vegetation was evident in abundance at site three. One element of each floating river vegetation group was present. Also evident was unprotected Ranunculus species and fools watercress commonly found in habitats alongside and often confused or mistaken for lesser water parsnip. Pondweed and starwort species were the most frequently recorded floating river 17
- Page 1 and 2: ISSN 1649 - 9840 SERIES OF ECOLOGIC
- Page 3 and 4: Foreword This Ecological Impact Ass
- Page 5 and 6: Executive Summary Table of Contents
- Page 7 and 8: 1.0 Introduction This study was com
- Page 9 and 10: and fauna. The OPW has a multi-annu
- Page 11 and 12: Currently twenty-one Special Areas
- Page 13 and 14: 2.1.4 Lower River Shannon Special A
- Page 15 and 16: 2.2.4 Site elevations within the Lo
- Page 17 and 18: 2.3.4 Site integrity of the Lower R
- Page 19 and 20: 3.0 Ecological Assessment of Water
- Page 21: 3.2 Distribution and extent of floa
- Page 25 and 26: aquatic moss. 3.2.3 Floating river
- Page 27 and 28: 3.2.5 Floating river vegetation wit
- Page 29 and 30: Starwort, Callitriche species •Ro
- Page 31 and 32: Each form of reproduction requires
- Page 33 and 34: prevented aquatic growth. Water lev
- Page 35 and 36: G.densa was the dominant floating r
- Page 37 and 38: 4.0 Description of maintenance oper
- Page 39 and 40: consultation with the Foreman / Tec
- Page 41 and 42: 4.3 River corridor water dynamics A
- Page 43 and 44: Not shown in the above data set is
- Page 45 and 46: 4.4 Physical, chemical and biologic
- Page 47 and 48: •Survey watercourses to determine
- Page 49 and 50: The primary riverbed substrate of w
- Page 51 and 52: gravel require loosening assess the
- Page 53 and 54: • Livestock should be restricted
- Page 55 and 56: River Breagagh Winter 2006 River Br
- Page 57 and 58: River Breagagh Winter 2006 Ranuncli
- Page 59 and 60: 6.0 Conclusion and summary •Arter
- Page 61 and 62: References •Blamey, M., Fritter,
- Page 63 and 64: Appendix A - Special Areas of Conse
- Page 65 and 66: Lower River Shannon Special Areas o
- Page 67 and 68: Channel name Location coordinates E
- Page 69 and 70: Appendix C - Habitat classification
- Page 71 and 72: Lower River Shannon Special Area of
tailed ordnance survey maps identifying survey sites assessed for floating river vegetation and the<br />
species recorded at each location can be found in Appendix D.<br />
Munster<br />
Connaught<br />
Leinster<br />
Fig. 4 Distribution <strong>of</strong> floating river vegetation recorded in each province surveyed<br />
<strong>Floating</strong> river vegetation recorded<br />
No floating river vegetation recorded<br />
16
Change language