Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"Shell strength"”.
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Predation on an introduced marine snail by native crabs
… in predation seemed to be explained by shell strength of the prey species. The presence of Ceratpstpma adds a new type of prey to the menu of the two crab species at the sites studied.
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Phenotypic Plasticity in Economically and Ecologically Important Bivalves in Response to Changing Environments
… of acclimation, I found that stressors reduced shell strength and periostracum (outer shell layer) density. Only acidification affected lipids, and fatty acid content varied between treatments. I was the first to quantify microbial composition of a bivalve under multiple stressors and I found …
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The interaction of acidification and warming on the South African abalone, Haliotis midae, and the potential for mitigation in aquaculture
… growth, spawning patterns, acid-base regulation, shell growth, morphology, shell strength and mineralogy over 12 months. This study also investigated the potential use of Ulva (Chlorophyta) as a mitigational tool to ameliorate acidified seawater, by photosynthetic carbon dioxide uptake, in a …
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Aspects of stress with particular reference to mytilid mussels and their parasites
… in these mussels. Mastigocoleus sp., a shell boring cyanophyte, colonises Mytilus with prevalences from 1% to 94% and can reduce shell strength by 43%. The relationship between stress (amount of alga on the shell) and strain (degree of damage) is demonstrated: 61.8% of variation in …
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Różnice w behawiorze i cechach muszli form barwnych wstężyka gajowego Cepaea nemoralis (L.) a preferencje pokarmowe ptaków i drobnych ssaków
Ewolucja i utrzymywanie się polimorfizmu ubarwienia muszli w populacjach wstężyka gajowego C. nemoralis to klasyczny problem ekologii ewolucyjnej. Selekcja drapieżnicza uważana jest za jeden z najważniejszych czynników kształtujących tę różnorodność. Dotąd nie znaleziono klarownego wzorca …
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Application of spectral techniques and machine learning for fertility, mortality, sex, and structural evaluation of eggs
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2027-05-01