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| Author(s) [A-Z] | Year [ascending] | Title | Type | Journal | Citation |
| Simpson, S.A. | 1990 | Displacement of Elodea canadensis Michx by Elodea nuttallii (Planch.) H. St John in the British Isles | Journal | Watsonia | Details... |
| Sinclair, W.F. | 1896 | The allis shad in Irish waters | Journal | Ir. Nat. | Details... |
| Smiddy, P. | 1998 | Grey seal in a freshwater river | Journal | Ir. Nat. J. | Details... |
| Smiddy, P. | 2000 | The status of the freshwater pearl mussel Margaritifera margaritifera (L.) in east Cork and part of Waterford, Ireland | Journal | Bull. Ir. biogeog. Soc. | Details... |
| Smith, M.N. | 2004 | Hydroporus neglectus Schaum, 1845 (Coleoptera: Dytiscidae) new to Ireland | Journal | Ir. Nat. J. | Details... |
| Smith, S.J. | 1989 | Irish Rivers: Biology and Management, R I A , Dublin, 23-24 February 1989 | Journal | Ir. Nat. J. | Details... |
| Smith, S.J. & Wolfe-Murphy, S.A. | 1991 | Ceratophyllum submersum L. soft hornwort, a species new to Ireland | Journal | Ir. Nat. J. | Details... |
| Smith, S.J., Wolfe-Murphy, S.A., Enlander, I. & Gibson, C.E. | 1991 | The lakes of Northern Ireland: an annotated inventory | Book | | Details... |
| Smith, W.S. | 1904 | Injuries to pollan in Lough Neagh | Journal | Ir. Nat. | Details... |
| Smith, W.S. | 1905 | Further evidence of Lough Neagh fishermen as to the causes of injuries to pollan | Journal | Ir. Nat. | Details... |
| Smits, A.J.M., Schmitz, G.H.W., van der Velde, G. & Voesenek, L.A.C.J. | 1995 | Influence of ethanol and ethylene on the seed germination of three nymphaeid water plants | Journal | Freshwater Biol. | Details... |
| Smits, A.J.M., van Ruremonde, R. & van der Velde, G. | 1989 | Seed dispersal of three nymphaeid macrophytes | Journal | Aquatic Bot. | Details... |
| Smyth, T. | 1994 | The distribution of freshwater Bryozoa in Ireland | Journal | Bull. Ir. biogeog. Soc. | Details... |
| Smyth, T. | 2001 | New county records of freshwater Bryozoa, (Ectoprocta: Phylactolaemata) for Co. Westmeath (H23) | Journal | Ir. Nat. J. | Details... |
| Southern, R. | 1911 | Some new Irish worms | Journal | Ir. Nat. | Details... |
| Southern, R. | 1924 | The fauna of a hatchery filter | Journal | Ir. Nat. | Details... |
| Southern, R. & Gardiner, A.C. | 1926 | The seasonal distribution of the Crustacea of the plankton in Lough Derg and the River Shannon | Journal | Fish. Ir., Sci. Invest. | Details... |
| Southwood, T.R.E. & Leston, D. | 1959 | Land and water bugs in the British Isles | Book | | Details... |
| Speers, A. | 1876 | Natural history of water, and its effects in nature | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Speight, M.C.D. | 1977 | Review: 'A key to the British freshwater Megaloptera and Neuroptera' by J.M. Elliott | Journal | Ir. Nat. J. | Details... |
956 references found.