• Second report on the fishes of the Irish Atlantic Slope

      Holt, E. W. L.; Byrne, L. W. (His Majesty's Stationary Office, Dublin, 1909)
      Many of the fishes which inhabit the deeper water of the Atlantic coast are unfamiliar to fishermen, and were not described in the books to which the general reader had ready access in the early 1900s. It was therefore the intention of the authors to give an account and figure; or sketch, of all except the well-known kinds. This is the second report in an occasional series on the fishes of the Irish Atlantic Slope.
    • The Fry of Salmon and Trout

      Anon. (Department of Agriculture, 1938)
      Every year large numbers of salmon fry (parr and smolts) are destroyed, sometimes quite unwittingly, by anglers who are unable to distinguish between salmon fry and young trout. Under Section 73 of the Fisheries (Ireland) Act, 1842, it is illegal to take the fry of either salmon or trout. The term “trout fry” has not yet received a legal interpretation but in some Fishery Districts the taking of immature trout below a certain size is prohibited by by-law. The fry of salmon are legally deemed to include also those fish locally called "jenkin" and "gravelling."
    • Salmon and Trout: Natural and Artificial Propagation as Factors in the Maintenance of Stocks

      Anon. (Department of Agriculture, 1939)
      The object of fishery regulations whether statutory or departmental is, in the ultimate, conservation. That is to say, it is sought by the imposition of certain restrictions to ensure such a run of fish for breeding purposes as will increase or at least maintain the stocks. Many citizens profess dissatisfaction with the existing stocks of fish in our rivers and lakes and persistently urge that they should be enhanced by all practical means. Generally the method which suggests itself to such persons is the setting up of a hatchery, to be operated either by stripping fish captured locally or by procuring supplies of ova (eggs) from outside sources. There seems to be a rather widespread belief that such a procedure even on a modest scale is bound to produce immediately beneficial results for the waters concerned. In other words, the operation of a hatchery is expected to offset completely the evils of over-fishing, as well as the damage resulting from illegal activities (whether within or outside the fishing season) and the reduction in stocks caused by predatory birds, fish and mammals added to the pollution of waters by the entrance of deleterious matter. Such a belief is, however, fallacious as it cannot be accepted in any degree without serious reservation.
    • Prawn Fishing

      Gibson, F A (Department of Lands, 1956)
      The common prawn (Leander serratus) is widely distributed around the Irish coasts, but obviously varies in abundance from place to place. This prawn should not be mistaken for the Norway Lobster, sometimes called the Dublin Bay Prawn (Nephrops norvegicus) or with the brown shrimp (Crangon vulgaris). Alive, the common prawn is a grey-brown colour and has blue bands on its legs. The Norway lobster is a pink colour, and its body is profusely covered with white tipped spines. The common prawn also has a projection from its head, called a rostrum, which is absent from the shrimp. As the prawn is of economic importance, some notes on simple methods of capture will be of interest to fishermen.
    • Escallop fishing around Ireland

      Gibson, F A (Department of Agriculture and Fisheries (Fisheries Division), 1957)
      There are, at present, two main centres of escallop fishing around the Irish coasts, one situated in the inlets forming the north side of Galway Bay, and the other along this south-west coast from Schull, County Cork, to Valentia, County Kerry, the beds exploited in these areas are all inshore, ranging from a short distance to about two miles beyond low water mark and in depths varying from two to twenty fathoms. Extensive beds are uncommon, most of them being small and located between rocky areas where the bottom is suitable. Escallops are generally taken in the months of October to April. Minimum size limits are enforced.
    • Some notes on crab fishing

      Gibson, F A (Department of Agriculture and Fisheries (Fisheries Division), 1957)
      Specific fishing on a commercial scale for the edible crab is practised only to a limited extent in this country and, although fairly substantial quantities of edible crabs are landed annually, these are largely the by-product of creel fishing for lobsters and crawfish. These notes give a short account of certain crab fishing methods and record the results of some experimental fishing undertaken by the Fisheries Division.
    • Review of the Irish Salmon Industry

      Went, A. E. J. (Department of Agriculture and Fisheries [Fisheries Division], 1965)
      For centuries the salmon has been an important item of commerce in Ireland and in many parts of the country today it is still very important in the general economy of the people, who gain a living directly or indirectly from it. It is important from two points of view. It provides sport for the angler and it supports a commercial fishery. There are three other articles in this issue: II. SALMON OF THE RIVER SHANNON (1957 to 1962) - Eileen Twomey; III. THE EFFECTS OF ARTERIAL DRAINAGE WORKS ON THE SALMON STOCK OF A TRIBUTORY OF THE RIVER MOY - E.D. Toner, Ann O’Riordan & Eileen Twomey; IV. RECAPTURES OF IRISH TAGGED SALMON OFF GREENLAND - A.E.J. Went.
    • Irish Sprats and Sandeels

      Molloy, J (Department of Agriculture and Fisheries (Fisheries Division), 1967)
      In 1965, Ireland imported approximately 13,235 tons of fishmeal for animal feeding stuffs, valued at £827,506. For some time now cosideration has been given to the fish resources around our coasts and whether it would be possible to provide a constant source of supply of materials to the fishmeal industry and the growing number of mink and trout farms. This paper investigates this issue.
    • Notes On Some Irish Estuarine And Inshore Fishes (With records of the distribution of shads by Eileen Twomey, M.Sc )

      Bracken, J J; Kennedy, M (Department of Agriculture and Fisheries (Fisheries Division), 1967)
      This paper brings together data collected in various ways by the authors, over a period of years. Some of the material described is a by-product of investigations, the primary results of which have already been published. Other material is supplementary to data previously published.
    • Irish Investigation on the Lobster (Homarus vulgaris Edw.)

      Gibson, F A (Department of Agriculture and Fisheries (Fisheries Division), 1967)
      Commercially the lobster (Homarua vulgaris Edw.) is the most important shellfish in Ireland. The Irish coast is deeply indented, except on the east, and is well suited for the exploitation of lobsters. Even on the east coast amidst a predominantly sandy shoreline, a number of discreet areas are fished actively.
    • Stocks of Nephrops norvegicus off the south coast of Ireland

      Gibson, F A (Department of Agriculture and Fisheries (Fisheries Division), 1967)
      Nephrops norvegicus is also known popularly as the Dublin Bay Prawn or Norway Lobster. The stocks of prawns in depths down to 60 fathoms (109m) have been studies since 1956, off the south of Ireland, from Mine Head, Co. Waterford, to the Kenmare River, Co. Kerry. The present paper is concerned with data obtained from the research vessel Cú Feasa, together with other samples collected from commercial fishing boats, during the years 1963 to 1966 inclusive.
    • The Movement of Salmon (Salmo Salar) Through an Estuary and a Fish-Pass

      Jackson, P. A.; Howie, D. I. D. (Department of the Marine, 1967)
      In this paper we have attempted to analyze in quantitative terms the behaviour of the salmon of the River Erne during the important phase of migration when the fish first enter brackish and fresh water.
    • The Whiting Fishery Off Counties Dublin and Louth On the East Coast of Ireland

      Hillis, J P (Department of Agriculture and Fisheries (Fisheries Division), 1968)
      The whiting Merlangius merlangus (L) has for over 30 years been the leading demersal species by weight in the landings of commercial fisheries on the east coast of Ireland. The present study was commenced in the autumn of 1959, using samples of both the commercial fishery and the research vessel Cú Feasa. The present paper describes the commercial catch from port samples supplemented with research vessel material where extra detail is desirable.
    • The Early Life of Brown Trout (Salmo Trutta L.)

      Kennedy, M.; Fitzmaurice, P. (Department of Agriculture and Fisheries [Fisheries Division], 1968)
      The programme of research included field and laboratory studies of certain aspects of the early life history of the trout that are considered below.
    • "Specimen" Brown Trout and Sea Trout From Irish Waters

      Went, A. E. J. (Department of the Marine, 1968)
      The present paper deals with all the material collected up to the end of the 1967 fishing season and relates to brown trout of 10 lb weight and upwards and sea trout of 6 lb and upwards.
    • Catch Effort and Size Distributions of the Catch in the Irish Lobster Fishery (1968)

      Gibson, F A (Department of Agriculture and Fisheries (Fisheries Division), 1969)
      The object of this leaflet is to discuss methods of comparing the success (catch per unit effort) of various types of traps for the capture of lobsters and the relationship of the information thus obtained to the lobster stocks themselves.
    • Eel Research in 1968

      Moriarty, C (Department of Agriculture and Fisheries (Fisheries Division), 1969)
      Fyke nets for the capture of eels have been in use in some parts of the country since 1961. These are “summer” type nets, laid on the bottom in lakes and river estuaries and having, when set, a maximum height of about 60 cm (2 ft.). Experiments with these nets were made in a number of lakes from July to September. Five students were employed to operate the nets and examine the eels. Each student was supplied with a set of eight nets (sixteen traps with eight leaders arranged in a line) and the nets were fished daily except at weekends or in rough weather. The traps were 1.84 m (6 ft.) long with an opening diameter of 43 cm (16 ins.), the leaders were 4.7 m (18 ft.) long and the mesh size at the cod end was 1 cm (0.4 ins). The areas chosen were Lough Corrib (mainly in the vicinity of the Docros peninsula), Loughs Inchiquin and George, near Corofin, Co. Clare, Loughs Ecnish and Tullyguide, near Killeshandra and Town Lake, Dromore Lake and Dromloona Lake, near Cootehill, Co. Cavan, the latter three by kind permission of Brigadier Dorman O'Gowan. In all cases the lengths of the eels were measured and the stomachs and otoliths of as many as possible were collected. The Lough Corrib eels were also weighed, their weights were used subsequently to calculate the weights of the eels from the other lakes. Examination of the stomach contents and otoliths of the eels has not yet been completed. The indications are that the majority of the eels feed on invertebrates while a small proportion feed on fish. Loughs Corrib and George in the areas fished offer poor feeding while Inchiquin and the County Cavan lakes are rich.
    • The Torrey Canyon Disaster: A review of methods employed to combat large scale oil pollution

      Griffith, David de G (Department of Agriculture and Fisheries (Fisheries Division), 1969)
      In this review an attempt has been made to collate the central points of the most important of the multitudinous reports which have appeared in connection with the Torrey Canyon oil pollution. The content has been limited to the biological aspects of a large-scale oil spillage and its subsequent treatment, although the importance of tourist amenities also receives consideration in the discussion. Consequently, several related topics which lie outside the scope of the biologist have either been omitted or just mentioned in passing: they include the technical problems of the salvage of oil from a crippled tanker, the control or collection of floating oil, and the administrative organisational requirements for effective action in an emergency of this kind.
    • A Review of the Irish Lobster Fishery

      Gibson, F A (Department of Agriculture and Fisheries (Fisheries Division), 1969)
      Records of the actual numbers of lobsters caught in Irish waters prior to 1887, are difficult to obtain. However, during the last thirteen years of the 19th century, the fishery had assumed such importance as to be included with the other major ones of the period i.e. salmon, herring, mackerel and cod. In 1891, the Inspector of Irish Fisheries, W.S. Green, commented that "the lobster fishery had reached such proportions as to deserve separate reporting". The help of the Coast Guard officers was sought for the task of compiling catch statistics, with the result that, from 1892 until the outbreak of the 1914-18 war, excellent records of the catch in the fishery are available. Since then the system of statistics collection has changed and now both catch and effort in the lobster fishery are assessed. This paper deals mainly with the period 1900 to 1967.
    • Tralee Bay Oyster Investigations (1965-1968)

      Duggan, C (Department of Agriculture and Fisheries (Fisheries Division), 1969)
      Investigations by the Department of Agriculture and Fisheries into the Tralee Bay oyster beds first commenced in a small way in 1965. Since then, especially during the summer of 1968, a more intensive programme has been carried out involving the collection of spat (oyster young) and plankton samples, the study of currents and temperatures in relation to spat-fall (settlement) and, finally, test trials on various types of spat collectors.