- About
-
The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
Search results
Showing 41 to 50 of 84 (0.008 seconds)| 41 |
Studies on the population dynamics and some of the biology of Mercenaria mercenaria (Linne)Mitchell, Roger January 1974 (has links)
No description available.
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| 42 |
Studies on possible endocrine structures in the central nervous system of Agriolimax reticulatusDuce, Ian Richard January 1976 (has links)
No description available.
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| 43 |
The electronic charge distribution in the alkali halides : a critical review of the available informationPhipps, Michael William January 1977 (has links)
No description available.
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| 44 |
Ecological impacts of the spread of non-native oysters and interactions with native oystersZwerschke, Nadescha January 2016 (has links)
Non-native species can have negative effects on local ecosystems by interrupting ecosystem functioning and altering biodiversity. Non-native ecosystem engineers, such as oysters, may have substantial impacts on ecosystems, by altering the physical structure of habitats and changing ecological processes within an invaded community. The non-native Pacific oyster, Crassostrea gigas, was introduced to Europe to revive the aquaculture industry, which was weakened following the decline of the native European flat oyster, Ostrea edulis. The introduction of C. gigas and subsequent natural proliferation in many coastal regions of Europe has caused great controversy in the scientific community. Initially, it was argued that C. gigas would have detrimental effects on the recovery of 0. edulis beds and alter the functioning of invaded coastal ecosystems. It has also been argued, however, that the spread of C. gigas often increased local biodiversity and reduced the impacts of coastal erosion. To assess the impact of C. gigas explicitly based on robust empirical evidence, an extensive survey and three field-based experiments were carried out. The aims were to: (i) identify and describe the current distribution of G. gigas populations in Ireland; (ii) test for direct effects of C. gigas on native 0. edulis beds; and (iii) characterise the functional ecology of C. gigas and compare it with the morphologically similar native species, 0. edulis.
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A study of the ecology of the snail, Lymnaea truncatula MullerMorphy, Michael John January 1973 (has links)
No description available.
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| 46 |
Studies on the feeding of the bivalve molluscs Petricolaria pholadiformis (Lamarck) and Barnea candida (Linnaeus)Moore, H. J. January 1973 (has links)
No description available.
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Equipment for the recovery and study of dup sea animalsGilchrist, I. January 1972 (has links)
No description available.
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| 48 |
Ionic regulation in the freshwater mollusc Limnaea stagnalis Linnaeus (Gastropoda : Pulmonata)Greenaway, Peter January 1969 (has links)
No description available.
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| 49 |
Studies on feeding in species of Abra (Mollusca: Bivalvia)Hughes, T. G. January 1974 (has links)
No description available.
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| 50 |
Field and laboratory studies on the behaviour of the dogwhelk, Nucella lapillus (L), (mollusca, gastropoda, prosobranchia)Hull, S. J. January 1979 (has links)
No description available.
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