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| Author(s) [A-Z] | Year [ascending] | Title | Type | Journal | Citation |
| Downey, M. | 1991 | Groenlandia densa (L.) Fourr. in the Royal Canal, Dublin | Journal | Ir. Nat. J. | Details... |
| Gibson, C.E. | 1991 | Contributions to the regional limnology of Northern Ireland: (4) the lakes of Co. Tyrone | Journal | Ir. Nat. J. | Details... |
| Kirby, P. | 1991 | Ramsey Marsh, Essex. Survey of aquatic and marginal invertebrates 2 November 1991. Copy in ISR files, Peterborough | Report | | Details... |
| Laganside Corporation | 1991 | Laganlife | Brochure | | Details... |
| Lott, D.A. & Bilton, D.T. | 1991 | Records of Coleoptera from Irish wetland sites in 1989 | Journal | Bull. Ir. biogeog. Soc. | Details... |
| McLoughlin, T.J.J. & Irwin, S.W.B. | 1991 | The occurrence of eye flukes in fish from the Erne catchment area | Journal | Ir. Nat. J. | Details... |
| O'Sullivan, W.M. | 1991 | The distribution of otters Lutra lutra within a major Irish river system, the Munster Blackwater catchment, 1988-90 | Journal | Ir. Nat. J. | Details... |
| Preston, C.D., Stewart, N.F. & Webster, S.D. | 1991 | Records of aquatic plants from Connemara and the Burren | Journal | Ir. Nat. J. | Details... |
| Ross, E. & McCarthy, T.K. | 1991 | Observations on Unionicola ysilophora (Bonz.), a watermite parasite of freshwater mussels | 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... |
| Tully, O., McCarthy, T.K. & O'Donnell, D. | 1991 | The ecology of the Corixidae (Hemiptera:Heteroptera) in the Corrib catchment, Ireland | Journal | Hydrobiologia | Details... |
| Wiegleb, G. & Brux, H. | 1991 | Comparison of life history characters of broad-leaved species of the genus Potamogeton L. I. General characterization of morphology and reproductive strategies | Journal | Aquatic Bot. | Details... |
| Wolfe-Murphy, S.A., Smith, S.J. & Preston, C.D. | 1991 | Irish pondweeds. I. a recent record of Potamogeton x cooperi (Fryer) Fryer from Co. Antrim | Journal | Ir. Nat. J. | Details... |
| Anderson, R. | 1992 | The duck mussel, Anodonta anatina (L.) (Mollusca: Bivalvia) reported from Lough Neagh | Journal | Ir. Nat. J. | Details... |
| Andrew, T.E. | 1992 | The occurrence of Bosmina longirostris (O.F.M.) in Lough Neagh | Journal | Ir. Nat. J. | Details... |
| Douglas, D.J. & McCall, G. | 1992 | The freshwater Ostracoda of Ireland | Journal | Bull. Ir. biogeog. Soc. | Details... |
| Fitzsimmons, A.G. & Andrew, T.E. | 1992 | The co-existence of three species of carnivorous Cladocera in the zooplankton of Lough Neagh | Journal | Ir. Nat. J. | Details... |
| Foster, G.N., Nelson, B.H., Bilton, D.T., Lott, D.A., Merritt, R., Weyl, R.S. & Eyre, D.A. | 1992 | A classification and evaluation of Irish water beetle assemblages | Journal | Aquatic Cons. | Details... |
| Gargan, P.G. & O'Grady, M.F. | 1992 | Feeding relationships of trout Salmo trutta L., perch Perca fluviatilis L. and roach Rutilus rutilus (L.) in Lough Sheelin, Ireland | Journal | Ir. Fish. Invest. | Details... |
956 references found.