Irish Fisheries Investigations Series B - Marine
http://hdl.handle.net/10793/36
2024-01-26T02:00:35ZPelagic Eggs and Young Stages of Fishes Taken on the South Coast of Ireland in 1967
http://hdl.handle.net/10793/396
Pelagic Eggs and Young Stages of Fishes Taken on the South Coast of Ireland in 1967
Kennedy, M; Fitzmaurice, P
Emes W. L. Halt was one of the pioneers of research on the spawning and early development of marine fishes, and collections of pelagic eggs and young stages of fishes made by him on the west coast of Ireland were the basis of some major contributions to the then young science of fisheries biology (HoIt 1891, 1893, 1899). Much more recently Fives (1967a) has worked on pelagic young stages of fishes taken in the plankton on the coasts of Galway and Clare.
Collections of eggs and young stages of clupeoids have been made on, the south coast of Ireland in winter during the years 1960-1962 (Bud and Bracken, 1965; Bracken and Kennedy, 1967). Hitherto, however, no collections of eggs or young stages of other fishes appear to have been made on the south coast.
As part of a programme of research by the Inland Fisheries Trust into the biology of the bass, Dicerntrarchus labrax (L.) in Irish waters, tow-netting for bass eggs was carried out at four centres on the southeast and south coasts of Ireland during the period April to June 1967. Pelagic eggs of a variety of species of fish, including bass, were obtained, as well as larvae, post-larvae and fry. The tow-netting was done close to shore and in estuaries-areas not as a rule sampled as extensively as the offshore waters where the major commercial fishes
The results of the tow-nettings help, therefore, to fill in some of the gaps in existing data on the reproduction of fishes on the Irish coast.
1969-01-01T00:00:00ZIrish Investigation on the Lobster (Homarus vulgaris Edw.)
http://hdl.handle.net/10793/395
Irish Investigation on the Lobster (Homarus vulgaris Edw.)
Gibson, F A
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.
1967-01-01T00:00:00ZThe feeding relationships of a small demersal fish community in the western Irish Sea
http://hdl.handle.net/10793/318
The feeding relationships of a small demersal fish community in the western Irish Sea
O'Brien, K; Fives, J M
The feeding relationships of seasonal and resident fishes captured on a sandy substratum in the lrish Sea, in June and in September, were investigated. Stomach content analysis of the 17 species examined indicated four main feeding tvpes in the June sample and three in the September sample. The majority of the species analysed in both June and September showed the same food preferences in both months. Most of the fish species showed some changes in diet with increasing length (ontogenetic shift) - some became more specialized and others favoured more varied diet. There was no evidence of competition between specialist feeders within size groups.
1994-01-01T00:00:00ZThe Distribution of Mytilus edulis and Anomid Larvae in Kilkieran Bay, Co. Galway
http://hdl.handle.net/10793/317
The Distribution of Mytilus edulis and Anomid Larvae in Kilkieran Bay, Co. Galway
Wilson, J H
The temporal and spatial distribution of Mytiius edulis and Anomiidae larvae were recorded in Kilkieran Bay, Co. Galway, during 1984 and 1985. Only larvae close to settlement (M. edulis larvae > 250 µm length and Anomiid larvae > 160 µm length) were considered. M. edulis larvae were commonest in late July, mid-August and early September 1984 and in early May, mid-June and early September 1985, while Anomiid larvae were commonest in late June and rnid-July 1984 and mid-June and early September 1985. M. edulis larvae were generally found in higher densities at the mouth of the bay, while Anomiids were more evenly dispersed, with high concentrations over the oyster beds. There was no significant (P < 0.05) net import of either species of larvae into the bay over tidal cycles.
1987-01-01T00:00:00Z