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  • Herring larval surveys in the Celtic Sea and division VIIj in 1983/1984

    Cullen, A.; Barnwall, E.; Grainger, R. J. (International Council for the Exploration of the Sea, 1984)
    Surveys for herring larvae in the Celtic Sea were conducted for the sixth ~ successive season between October 1983 and February 1984. The modifications made to the survey grid in the previous season to take account of the amalgamation of the Celtic Sea and Division VIIj for assessment purposes and to ascertain if larvae drift into the Irish Sea were also adopted for the 1983/84 surveys. A drift of larvae towards the Irish Sea was apparent in 1983/84. The larval abundance index for 1983/84 based on a standard survey area was almost three times higher than any previous value. A continuous increase in larval indices since 1978/79 indicates a recovery of the spawning stock.
  • The age Distribution of the Herring Stocks around the Irish Coast during 1993

    Barnwall, E.; Molloy, J. (1994)
    The age distribution of stocks is usually considered as an indication of how healthy a stock may be. In general stocks which are lightly exploited will contain a much larger proportion of older fish than a stock which is heavily exploited. A stock which is heavily exploited will probably be dependent on one year class which will recruit to the fishery and which will immediately be subjected to fishing effort. Obviously in such a fishery failure of recruitment or poor recruitment will have drastic effect on the catches. Herrings can be aged accurately until are about 10 years old and generally recruit to the adult stocks during their third year. During this year, the majority of fish will spawn for the first time.
  • Fluctuations in the Stock of Herrings on the North Coast of Donegal

    Farran, G. (Conseil International pour l'Exploration de la Mer (ICES), 1930)
  • Donegal Bay Herring Investigations, 1967/68

    Bracken, J. J.; Phillips, D. (University College Dublin, 1968)
  • The Reproduction of Calanus finmarchicus off the South Coast of Ireland.

    Farran, G. (Conseil International pour l'Exploration de la Mer (ICES), 1927)
  • On the Size and Number of the Ova of Irish Herrings

    Farran, G. (Conseil International pour l'Exploration de la Mer (ICES), 1938)
  • Note on the Growth-Rate of Herrings in the Irish Sea

    Farran, G. (Conseil International pour l'Exploration de la Mer (ICES), 1928)
  • Towards a flexible Decision Support Tool for MSY-based Marine Protected Area design for skates and rays

    Dedman, Simon; Officer, Rick; Brophy, Deirdre; Clarke, Maurice; Reid, David G. (Oxford University Press (OUP), 2017)
    It is recommended that demersal elasmobranchs be managed using spatial proxies for Maximum Sustainable Yield. Here we combine escapement biomass—the percentage of the stock which must be retained each year to conserve it—with maps of predicted Catch Per Unit Effort (CPUE) of four ray species [cuckoo (Leucoraja naevus), thornback (Raja clavata), blonde (Raja brachyura), and spotted (Raja montagui)], created using Boosted Regression Tree modelling. We then use a Decision Support Tool to generate location and size options for Marine Protected Areas to protect these stocks, based on the priorities of the various stakeholders, notably the minimisation of fishing effort displacement. Variations of conservation/fishing priorities are simulated, as well as differential priorities for individual species, with a focus on protecting nursery grounds and spawning areas. Prioritizing high CPUE cells results in a smaller closed area that displaces the most fishing effort, whereas prioritizing low fishing effort results in a larger closed area that displaces the least fishing effort. The final result is a complete software package that produces maps of predicted species CPUE from limited survey data, and allows disparate stakeholders and policymakers to discuss management options within a mapping interface.
  • Human Health

    Bresnan, E.; Austin, C. B.; Campos, C. J. A.; Davidson, K.; Edwards, M.; Hall, A.; Lees, D.; McKinney, A.; Milligan, S.; Silke, J. (Marine Climate Change Impacts Partnership, 2017)
    • Toxin producing phytoplankton, pathogenic vibrios (bacteria commonly found in low salinity water) and noroviruses all have the potential to impact human health. • The relationship between climate change and toxin producing phytoplankton is complex. Considerable unknowns remain about how climate change will impact this part of the plankton community and confidence in predicting these impacts in UK waters remains low. • A recent study in Scotland has shown short term weather events as well as wind mediated transport of offshore phytoplankton populations can influence the toxicity of coastal shellfish. This highlights the requirement for long term data sets to identify the impacts of climate change from shorter term seasonal and interannual variability. • Emerging evidence from peer-reviewed scientific studies has suggested that increasing seawater temperatures and extreme weather events such as heatwaves and extreme precipitation, drive the abundance of pathogenic vibrios in the environment. A recent spate of reported infections in Northern Europe underlines these observations. Climate warming in the region may therefore increase human infections.
  • On the Mesh of Herring Drift-Nets in Relation to the Condition Factor of the Fish

    Farran, G. (Conseil International pour l'Exploration de la Mer (ICES), 1936)
    It is well known to herring fishermen that, in order to get the best returns, the mesh of their nets must correspond to the size of the fish on the grounds, but that this correspondence must take into account of both the length and the weight or condition of the fish has not, I think, been clearly pointed out. I have tried in this paper to express in definite figures a relationship between the size of the mesh and the condition and length of the fish taken together.
  • The Herring Fishery in Éire, 1921 - 1941.

    Farran, G. (Department of Agriculture, 1944)
    In the following pages an attempt has been made to give a concise summary of the herring fishery in the years from 1921 to 1941, or approximately the period between the two European wars. The abnormal conditions in 1914-1918 were prolonged locally by abnormal transport and generally unsettled conditions until 1923 but, except for increased demand for herrings for export, higher prices and the absence of English and Scottish boats from our shores, the years 1940 and 1941 did not differ markedly from the preceding period.
  • The novel use of pop-off satellite tags (PSATs) to investigate the migratory behaviour of European sea bass Dicentrarchus labrax

    O'Neill, R.; Ó Maoiléidigh, N.; McGinnity, P.; Bond, N.; Culloty, S. (Wiley, 2018)
    A total of 12 adult European sea bass Dicentrarchus labrax were tagged with pop‐off satellite archival tags (PSAT) in Irish coastal waters and in offshore waters in the north‐east Celtic Sea between 2015 and 2016. Archived data were successfully recovered from five of the 12 tags deployed, three from fish released in inshore Irish waters and two from fish released offshore in the eastern Celtic Sea. All three fish tagged in inshore waters were found to undertake migrations into the open ocean coinciding with the spawning period. These fish also exhibited fidelity to inshore sites post‐migration, returning to the same general location (within c. 73 km, which is roughly the predicted mean accuracy of the method) of their original release site. Although the number of tracks obtained here was limited, some degree of aggregation between inshore and offshore tagged fish in the eastern Celtic Sea was noted during the expected spawning period suggesting PSATs can provide new information on specific spawning locations of European sea bass.
  • Dunmore East Herring Investigations, 1965/66

    Molloy, J. (Department of Lands, 1966)
  • Herring Investigations at Dunmore East - 1962/63

    Bracken, J. J. (Department of Lands, 1963)
  • The Dunmore East Herring Fishery, 1958-59

    Bracken, J. J. (Department of Lands, 1959)
  • Racial analyses of Dunmore East Herring stocks by means of the Otoliths

    Foster, M. (Fisheries Division, Department of Lands., 1963)
    Einarsson (1951) has shown that it is possible to separate in a mixed fishery the winter/spring spawned fish from summer/autumn spawned fish on the basis of the appearance of the nuclei of the otoliths. In general, the winter/spring spawned fish have small hyaline and opaque nuclei, whereas the summer/autumn spawned fish have large hyaline nuclei. Otoliths from herrings taken at Dunmore East in the period 1960 to 1964 were examined and classified using Einarsson's method.
  • The Herring Fisheries off the North coast of Donegal

    Farran, G. (Department of Agriculture, 1937)
    The herring fishery which takes place every spring and early summer off the North Coast of Donegal is one of the most regular and uniform on the coast of Ireland, and, as it has been under close observation from a scientific point of view since 1921, a short account of it will serve to illustrate the aims of modern methods of research and the extent to which these methods can lead to results of practical value.
  • Herring larval surveys in the Celtic Sea in 1981/82

    Barnwall, E.; Cullen, A.; Grainger, R. J. (International Council for the Exploration of the Sea, 1982)
    The distributions of herring larvae sampled on ten cruises off the south coast of Ireland during the 1981/82 spawning season are described. A new larval abundance index, which is based on the abundances of <10mm larvae prior to 15 December and on <11mm larvae afterwards,has been calculated for the last four seasons. This index shows an increase each year since 1978/79 indicating that the spawning stock biomass has also increased.
  • Reports from the FSS mini-symposia 2004-2005

    Codling, E.; Kelly, C.; (eds) (Marine Institute, 2006)
    The mini symposia documented in this publication were meetings organised in October 2004 and August 2005 by the 'Modelling and Simulation' team in Fisheries Science Services (FSS) of the Marine Institute, Ireland. Both symposia took place at the Harbour Hotel in Galway, Ireland. Each meeting consisted of a number of presentations (given as talks or posters) followed by a round-table informal discussion session. The two meetings were attended by participants from FSS and the Marine Institute, BIM (Bord Iascaigh Mara - Irish Sea Fisheries Board), FRS (Fisheries Research Services) Aberdeen, and universities in both Ireland and UK. The Appendix contains a full list of the participants at each meeting, while contact details for those who gave presentations are given at the start of each summary paper.
  • Irish Sea Young Herring Survey

    Molloy, J. (An Roinn Iascaigh agus Foraoiseachta, 1979)
    Corrected proof

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