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 12 of 12 for “"Larval phase"”.
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The genetic structure of New Zealand's coastal benthos: using the estuarine clam Austrovenus stutchburyi, to determine rates of gene flow and population connectivity
… over large distances is dependent on a pelagic larval phase. It is through the dispersal process that benthic taxa can found new populations, colonise disturbed or degraded habitats and achieve genetic exchange between geographically separated subpopulations. While it is widely accepted that the …
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A Population Genomic Study of Mutton Snapper (Lutjanus analis) Throughout Florida and the Caribbean
… may occur during the 27-37 days pelagic larval phase. Information on genetic stock structure is critical to design management units for mutton snapper fisheries. Previous genetic studies did not detect significant structuring, but the surveys only included 8-16 genetic markers and limited …
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Molecular Population Genetics of the Atlantic Sand Fiddler Crab, Uca Pugilator, Along the Atlantic Coast
… have a life cycle with an obligatory planktonic larval phase of 30-90 days, which might be expected to lead to widespread larval dispersal and consequent genetic homogeneity over considerable distances. However a large amount of morphological and behavioral variation is found between northern and …
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The population genetic structure of coral reef fishes on the Great Barrier Reef
… on the periphery of this species. The pelagic larval duration (PLD) can both affect and record the ecology and evolution of coral reef fishes and emerging evidence suggests that this trait displays considerable intraspecific variation. Here I present new estimates of PLD for ten species of …
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Trait-based modeling of larval dispersal in the Gulf of Maine
… is driven by dispersal during a planktonic larval phase. The ability to obtain accurate, affordable, and meaningful estimates of larval dispersal patterns is therefore a key aspect of understanding marine ecosystems. Although field observations provide insight into dispersal processes, they …
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Trait-based modeling of larval dispersal in the Gulf of Maine
… is driven by dispersal during a planktonic larval phase. The ability to obtain accurate, affordable, and meaningful estimates of larval dispersal patterns is therefore a key aspect of understanding marine ecosystems. Although field observations provide insight into dispersal processes, they …
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Transport and retention of benthic marine invertebrates in the Southern Tauranga Basin
… because of the dispersal potential of a pelagic larval phase, with populations maintained by an external supply of recruits. However, for estuarine populations, recent evidence has suggested that populations may be more closed because of local hydrodynamic conditions causing larval retention …
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The genetic and molecular analysis of the mfs(2)31 locus in Drosophila melanogaster : a novel suppressor of position-effect variegation
… that were lethal as homozygotes died in the larval phase, while weaker alleles exhibited the previously described bristle, sterility and su(var)phenotypes. Larval, pupal and adult functions were defined for the locus. Although no dominant phenotypes were observed, surviving heteroallelic …
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Misura della connettività e della dispersione dell’aragosta rossa Palinurus elephas (Fabricius, 1787) in Sardegna con l’uso di marcatori genetici STRs e mitocondriali
… forces driving the gene flow: a very dispersive larval phase versus a more sedentary adult lifestyle. In conclusion, the results here shown demonstrate the efficacy of a more aware and conscious policy towards such an important ecological and economic resource. All efforts to repopulate and make …
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The plasticity of life histories during larval development and metamorphosis, using amphibians as study organisms.
… been well documented, particularly during the larval phase in animals with complex life cycles. The evolution and maintenance of plasticity in response to environmental conditions is likely to be adaptive in animals that face unpredictable environments. However, there are two aspects of life …
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Post-larval development in deep-sea echinoderms
The post-larval phase is an essential period in the life history of marine invertebrates; vulnerable to high mortality, it ultimately influences the distribution and abundance of adult populations. The post metamorphic ontogenesis of thirty species of deep-sea echinoderms, belonging to three …
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Predation effects of benthivorous fish on stream food webs – a large scale and long term field experiment
… reserve in both species throughout the whole larval development (> 84 % of total energy storage) their seasonal dynamic differed considerably. In R. semicolorata the triglyceride concentration declined during the last weeks prior to emergence in both sexes. The same pattern was found in …