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  • 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.
11

Implementation of a spatial-temporal focus to predict habitat locations and distribution of Cambarus veteranus

Channell, Katherine B. January 2004 (has links)
Thesis (M.S.)--Marshall University, 2004. / Title from document title page. Document formatted into pages; contains ix, 88 p. including illustrations. Includes abstract. Includes bibliographical references (p. 72-76).
12

De Chineesche wolhandkrab in Nederland

Kamps, Lambert Floris. January 1937 (has links)
Thesis (Ph. D.)--Rijksuniversiteit, Groningen, The Netherlands, 1937. / Bibliography: p. [109]-110.
13

Phylogeny of decapoda (arthropoda: crustacea) using nuclear protein-coding genes. / CUHK electronic theses & dissertations collection

January 2010 (has links)
Finally, the gene tree of the true crabs, Brachyura, confirms that the basal "Podotremata" is paraphyletic, with the Raninoidea and Cyclodorippoidea more closely related to Eubrachyura than to the other podotremes. Within the monophyletic Eubrachyura, the analysis supports the reciprical monophyly of the two subsections, Heterotremata and Thoracotremata. All of the Old World freshwater crabs cluster together, representing an early diverged lineage in the Heterotremata. / From the inferred phylogeny, we have obtained new insights on the evolution of decapods. First, the spiny lobster from the family Palinuridae is found to be paraphyletic with the polyphyletic Synaxidae nested within it. The Stridentes forms a monophyletic assemblage, indicating that the stridulating sound producing organ evolved only once in the spiny lobsters. Moreover, the spiny lobsters originated in the shallower water rocky reefs of the Southern Hemisphere and then invaded deep sea habitats and diversified. / In sum, I demonstrate the utility of the nuclear protein-coding gene markers in decapod phylogeny and they are informative across a wide range of taxonomic levels. I propose that nuclear protein-coding genes should constitute core markers for future phylogenetic studies of decapods, especially for higher systematics. / Second, we show that hermit crabs have a single origin, but surprisingly, that almost all other major clades and body forms within the Anomura, are derived from within the hermit crabs. The crab-like form and squat lobster form have each evolved at least twice from separate symmetrical hermit crab ancestors. These remarkable cases of multiple parallelism suggest considerable phenotypic flexibility within the hermit crab ground plan, with a general tendency towards carcinization. Rather than having a separate origin from other major clades, hermit crabs have given rise to most other major anomuran body types. / The high diversity of decapods has attracted the interest of carcinologists but there is no consensus on decapod phylogeny in spite of the endeavors using both morphological and molecular approaches. New sources of information are necessary to elucidate the phylogenetic relationships among decapods. In the present study, I attempted to develop and apply the nuclear protein-coding gene markers on decapod phylogeny. Using only two protein-coding genes, we have successfully resolved most of the infraordinal relationships with good statistical support, indicating the superior efficiency of these markers compared to nuclear ribosomal RNA and mitochondrial genes commonly used in phylogenetic reconstruction of decapods. Apparently these two types of markers suffer from the problems of alignment ambiguities and rapid saturation, respectively. Subsequently, I tried to apply the nuclear protein-coding genes in revealing interfamilial and intergeneric evolutionary history in three selected decapod groups, the spiny lobster (family Palinuridae), the infraorder Anomura and the true crabs of the infraorder Brachyura to further evaluate the utility of these markers and reconstruct the evolutionary history the groups. Trees with robust support can be obtained using sequences of three to five genes for the infraorders and families tested including the most speciose Brachyura. The genes are shown to be informative in elucidating interspecific phylogeny as well. / Tsang, Ling Ming. / Adviser: Ka Hou Chu. / Source: Dissertation Abstracts International, Volume: 73-02, Section: B, page: . / Thesis (Ph.D.)--Chinese University of Hong Kong, 2010. / Includes bibliographical references (leaves 127-153). / Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Electronic reproduction. [Ann Arbor, MI] : ProQuest Information and Learning, [201-] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Abstract also in Chinese.
14

Phylogeny of the infraorder Caridea (Crustacea:Decapoda) based on nuclear genes. / 使用細胞核基因之真蝦下目(甲殼亞門 : 十足目)物種分類 / Shi yong xi bao he ji yin zhi zhen xia xia mu (jia qiao ya men:shi zu mu) wu zhong fen lei

January 2010 (has links)
Li, Chi Pang. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2010. / Includes bibliographical references (leaves 127-141). / Abstracts in English and Chinese. / Abstract --- p.i / Abstract (Chinese) --- p.iii / Acknowledgements --- p.v / Contents --- p.vi / List of Tables --- p.ix / List of Figures --- p.x / Chapter Chapter 1 --- General Introduction --- p.1 / Chapter Chapter 2 --- Literature Review --- p.3 / Chapter 2.1 --- Caridean phylogeny --- p.3 / Chapter 2.1.1 --- Informative morphological characters in Caridean shrimps --- p.3 / Chapter 2.1.2 --- Brief history of Caridean classifications --- p.4 / Chapter 2.1.3 --- Natantia/Reptantia scheme vs. Dendrobranchiata/Pleocyemata scheme --- p.8 / Chapter 2.2 --- Phylogney of the family Hippolytidae --- p.10 / Chapter 2.3 --- Molecular approach to phylogeny --- p.11 / Chapter 2.3.1 --- Use of molecular data --- p.11 / Chapter 2.3.2 --- Use of mitochondrial gene markers in crustaceans --- p.12 / Chapter 2.3.3 --- Use of nuclear gene markers in crustaceans --- p.14 / Chapter Chapter 3 --- Phylogeny of the Infraorder Caridea Based on five Nuclear Genes --- p.27 / Chapter 3.1 --- Introduction --- p.27 / Chapter 3.2 --- Materials and Methods --- p.28 / Chapter 3.2.1 --- Sample Collection --- p.28 / Chapter 3.2.2 --- DNA extraction and PCR amplification --- p.28 / Chapter 3.2.3 --- DNA sequencing --- p.29 / Chapter 3.2.4 --- Phylogenetic analysis --- p.30 / Chapter 3.3 --- Results --- p.34 / Chapter 3.3.1 --- Enolase --- p.34 / Chapter 3.3.2 --- NaK --- p.35 / Chapter 3.3.3 --- PEPCK --- p.37 / Chapter 3.3.4 --- Histone --- p.38 / Chapter 3.3.5 --- 18S rRNA --- p.39 / Chapter 3.3.6 --- Combined dataset --- p.41 / Chapter 3.3.7 --- Substitution saturation analysis --- p.43 / Chapter 3.4 --- Discussion --- p.44 / Chapter 3.4.1 --- Evaluation of the five nuclear gene markers --- p.44 / Chapter 3.4.1.1 --- Nuclear protein coding genes --- p.44 / Chapter 3.4.1.2 --- 18S rRNA --- p.81 / Chapter 3.4.2 --- Superfamilies and families --- p.82 / Chapter 3.4.2.1 --- Superfamilies --- p.82 / Chapter 3.4.2.2 --- Families --- p.86 / Chapter 3.4.3 --- Basal groups --- p.86 / Chapter 3.4.4 --- Procarididae --- p.88 / Chapter Chapter 4 --- Phylogeny of the family Hippolytidae --- p.90 / Chapter 4.1 --- Introduction --- p.90 / Chapter 4.2 --- Materials and Methods --- p.91 / Chapter 4.2.1 --- Sample Collection --- p.91 / Chapter 4.2.2 --- DNA extraction and PCR amplification --- p.91 / Chapter 4.2.3 --- DNA sequencing --- p.95 / Chapter 4.2.4 --- Phylogenetic analysis --- p.95 / Chapter 4.3 --- Results --- p.95 / Chapter 4.3.1 --- Enolase --- p.95 / Chapter 4.3.2 --- NaK --- p.98 / Chapter 4.3.3 --- 16S rRNA --- p.99 / Chapter 4.3.4 --- Combined dataset --- p.100 / Chapter 4.4 --- Discussion --- p.118 / Chapter 4.4.1 --- "Resurrection of family Lysmatidae Dana,1852" --- p.118 / Chapter 4.4.2 --- Other hippolytid clades --- p.120 / Chapter 4.4.2.1 --- """Hippolytidae""" --- p.120 / Chapter 4.4.2.2 --- Bythocarididae --- p.121 / Chapter 4.4.3 --- Superfamily Alpheoidea --- p.122 / Chapter Chapter 5 --- General Conclusion --- p.125 / References --- p.127
15

Stomatopod and decapod crustaceans of the Archipelago of Fernando de Noronha, northeast Brazil

Fausto-Filho, José, 1935- January 1973 (has links)
No description available.
16

A novel assemblage of decapod crustacea, from a tithonian coral reef olistolith, Purcã̃reni, Romania systematical arrangement and biogeographical perspective /

Shirk, Aubrey Mae. January 2006 (has links)
Thesis (M.S.)--Kent State University, 2006. / Title from PDF t.p. (viewed June 21, 2007). Advisor: Rodney M. Feldmann. Keywords: decapoda, crustacea, Jurassic, Romania. Includes bibliographical references (p. 161-181).
17

Crustacean phylogenetic systematics and opsin evolution /

Porter, Megan L., January 2005 (has links) (PDF)
Thesis (Ph. D.)--Brigham Young University. Dept. of Microbiology and Molecular Biology, 2005. / Includes bibliographical references (p. 163-189).
18

Paleoecological analysis of faunal disparity within a constrained horizon of the Monte León Formation, early Miocene, southern Argentina

Crawford, Robert S. January 2007 (has links)
Thesis (M.S.)--Kent State University, 2007. / Title from PDF t.p. (viewed Mar. 19, 2009). Advisor: Rodney Feldmann. Keywords: Monte León Formation, Argentina, mass mortality, Chaceon Peruvianus, Miocene, marine ashfall. Includes bibliographical references (p. 94-110).
19

Cestode parasites of Illex Illecebrosus Illecebrosus (LeSueur) (Decapoda: cephalopoda). --

Brown, Elizabeth Louise. January 1968 (has links)
Thesis (M.Sc) -- Memorial University of Newfoundland. / Typescript. Bibliography : leaves 122-128. Also available online.
20

Transport mechanisms of decapod larvae to the nearshore and estuarine environment

Johnson, Jeremiah January 1998 (has links)
Typescript. Includes vita and abstract. Bibliography: Includes bibliographical references (leaves 62-69). Description: viii, 68 leaves : ill. ; 29 cm.

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