Theses - School of Science, ATU Galway City: Recent submissions
Now showing items 21-40 of 52
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The drivers and dynamics of fisher behaviour In Irish fisheries
(Galway-Mayo Institute of Technology, 2013)It is widely acknowledged within the scientific community that a single species approach to European mixed fisheries can result in species-specific advice inconsistent with multi-species management objectives. Within the ... -
Estimating fish stock population parameters from bottom trawl surveys: sources and magnitude of uncertainty
(Galway-Mayo Institute of Technology, 2006)Fisheries surveys are widely used in the stock assessment process by providing time series of relative abundance and recruitment strength. Surveys also provide biological data that have the potential to improve stock ... -
Investigation of multiwavelength correlations for the VHE gamma-ray blazar markarian 421 from 1995 to 2009
(Galway-Mayo Institute of Technology, 2011)The blazar Markarian 421 is an excellent laboratory for studying the physical processes within the jets of active galactic nuclei. In this thesis, a multiwavelength database has been compiled using data from the Whipple ... -
Impacts of the parasitic dinoflagellate Hematodinium sp. on Irish crustacean fisheries
(Galway-Mayo Institute of Technology, 2010)Infection of Cancer pagurus by a parasitic dinoflagellate of the genus Hematodinium is described for the first time in Ireland. An industry-based monitoring programme was established to determine seasonality of infection ... -
A holistic stock analysis of Albacore tuna (Thunnus alalunga) from the North Atlantic Ocean and Mediterranean Sea
(Galway-Mayo Institute of Technology, 2009)Albacore tuna (Thunnus alalunga, Bonnaterre, 1788) is a highly migratory scombrid with a cosmopolitan distribution inhabiting all the worlds’ ocean, in both tropical and temperate regions. Albacore juveniles and adults are ... -
An emergent pathogen, phytophthora ramorum, in Irish woodlands
(Galway-Mayo Institute of Technology, 2009)Phytophthora kemoviae and Phytophthora ramorum are both recently discovered pathogens of tree species. The disease that causes P. ramorum has been given the common name of Sudden Oak Death, in the US, because the expression ... -
Investigation of the substrate specificity of glutamyl endopeptidase using casein substrates
(Galway-Mayo Institute of Technology, 2011)Electrophoretically and chromatographically pure P-casein was prepared from acid caseinate exploiting the differential solubility of different caseins in the presence of Ca2+ at 4°C and 30°C. The yield of P-casein was ... -
Field enhancement of the parasitoid bracon hylobii (Hymenoptera: Braconidae) to control hylobius abietis (Coleoptera: Curculionidae); the large pine weevil
(Galway-Mayo Institute of Technology, 2012)Hylobius abietis (Coleoptera: Curculionidae), the large pine weevil is the most damaging pest of reforestation sites in Ireland. This study examined the possibility of manipulating populations of a species specific parasitoid, ... -
Evaluation of fish pots as a feasible fishing method in Irish waters, with specific reference to the physiological effects of common and alternate pots on the lesser spotted dogfish (Scyliorhinus canicula).
(Galway-Mayo Institute of Technology, 2009)Finfish pots have emerged as a “responsible” gear, when used in combination with conservational and technical measures to sustain fisheries. Previous trials in Irish waters have offered no published reported data and so ... -
Determination of selenium in selenium enriched yeast.
(Galway-Mayo Institute of Technology, 1999)Selenium, although a rare mineral, is widely distributed in minute amounts in virtually all materials of the earth’s crust, its average abundance is approximately ~0.09ppm. Selenium is rarely found in its native state i.e. ... -
A phytochemical study of ilex and betula species
(Galway-Mayo Institute of Technology, 1999)A phytochemical study of the outer bark of native common holly (Ilex aquifolium), led to the isolation and identification of nine novel fatty acid esters of the pentacyclic triterpene a-amyrin. These compounds were the ... -
On the ecology of rorqual whales (Balaenopteridae) in Irish waters using intrinsic markers
(Galway-Mayo Institute of Technology, 2012)Despite repeated calls for an ecosystem-based approach to the management of marine resources, little information exists on the ecosystem role and requirements of top predators such as baleen whales in Irish waters. Considering ... -
Investigation into the early life history of the European flounder (Platichthys flesus L.) with special emphasis in Galway Bay, Irish West Coast
(Galway-Mayo Institute of Technology, 2012)European flounder (Platichthys flesus L.) economic value is estimated to be worth over 68 million to the Irish economy (mainly from recreational angling activities). Despite such large species value, there is a considerable ... -
Age, growth, reproductive biology and population dynamics of the common megrim Lepidorhombus whiffiagottis (Walbaum, 1792) from off the west coast of Ireland
(Galway-Mayo Institute of Technology, 2004)A total of 4,964 common megrim Lepidorhombus whiffiagonis, were examined from commercial catches in Divisions VII b^, off the west coast of Ireland, between April 1997 and February 2001. A sex ratio of 31.8:1 females to ... -
Taxonomy of the Lysianassoidea of the Northeast Atlantic and Mediterranean : an interactive identification key and studies on problematic groups
(Galway-Mayo Institute of Technology, 2006)A DELTA (DEscriptive Language for TAxonomy) database was constructed for 135 species of lysianassoid amphipods of the Northeast Atlantic and Mediterranean Sea, representing almost 20% of the total estimated number of ... -
Population Differentiation in Blue Whiting (Micromesistius poutassou) in the North East Atlantic Ocean
(Galway-Mayo Institute of Technology, 2005)Blue whiting is a commercially important gadoid fish found throughout the Atlantic Ocean and the Mediterranean. It is a pelagic, migratory species with feeding grounds in the Norwegian Sea and in the Bay of Biscay. The ... -
Genetic variability and phylogeography of the invasive zebra mussel, dreissena polymorpha (PALLAS)
(Galway-Mayo Institute of Technology, 2005)The zebra mussel, Dreissena polymorpha (Pallas), a bivalve species originally native to the Black and Caspian seas, has invaded Ireland in the last decade. Five microsatellite loci were used to investigate genetic diversity ... -
Effect of Freeze-chill Technology and Modified Packaging on the Quality of Whiting (Merlangius merlcmgus), Mackerel (Scomber scombrus) and Salmon (Salmo salar) Portions
(Galway-Mayo Institute of Technology, 2003)Freeze-chilling involves freezing and frozen storage followed by thawing and chilled storage. It offers logistic benefits for fish packers as it enables packaged fillets to be held frozen and then released into the chill ... -
Population genetic structure of brown crab (Cancer pagurus) in Irish waters
(Galway-Mayo Institute of Technology, 2009)The brown crab (Cancer pagurus) fishery in Ireland is one of the most important financially and socio-economically, with the species worth approximately €15m per year in the first half of the decade. Only mackerel (Scomber ... -
Monitoring intertidal community change in a warming world
(Galway-Mayo Institute of Technology, 2004)If the earth’s climate is warming as predicted, the effects of this environmental change may begin to appear along a range of biological scales, including ecosystems, communities, populations and individual species. The ...
