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Dissertations / Theses on the topic 'Bryozoa'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Tsyganov-Bodounov, Anton. "Molecular systematics of Bryozoa." Thesis, Swansea University, 2008. https://cronfa.swan.ac.uk/Record/cronfa43148.

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2

Markham, J. B. "Studies on feeding in Bryozoa." Thesis, Swansea University, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.638002.

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Procedures to reduce errors in Coulter analyses - In counts of suspensions of algae and inert particles made with a negative external electrode (EE), neither total number of particles per unit volume of suspension nor mean cell or particle volume (MCV) ever changed. In contrast, a count made with a positive EE exhibited a substantial change in MCV. A review of published investigations of damage to red blood corpuscles caused by a count suggests that they are affected in a similar way. Function of the gizzard in Bryozoa - Five gizzard-bearers frequently displayed significantly greater ability t

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3

Fisher, E. M. "Competition for food in the Bryozoa." Thesis, University of Liverpool, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.279719.

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4

Vieira, Leandro Manzoni. "Sistemática e distribuição dos briozoários marinhos do litoral de Maceió, Alagoas." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/41/41133/tde-12122008-103654/.

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Os briozoários compreendem um Filo de invertebrados geralmente coloniais, com aproximadamente 5.500 espécies descritas no mundo e apenas 346 relatadas para o Brasil. O presente trabalho trata do conhecimento sobre a diversidade de briozoários marinhos de águas rasas do Município de Maceió, Estado de Alagoas, incentivado pela carência de estudos na costa Nordeste do Brasil. Com os objetivos redescrever os táxons encontrados em Maceió e estudar suas variações morfológicas e distribuição espacial de acordo com o substrato ocupado pelas colônias, espécimes de briozoários foram coletados em 9 ponto

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5

Tischler, Mark. "Secondary metabolites from selected British Columbian marine organisms." Thesis, University of British Columbia, 1987. http://hdl.handle.net/2429/26650.

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The two purine alkaloids, phidolopin (36) and desmethylphidolopin (37), originally isolated from Phidolopora pacifica, were synthesized in order to produce sufficient quantities of the natural products for extended biological and pharmacological screening and to confirm the previous structural assignment of 37 which was based on spectral data. Various combinations of phidolopin (36), desmethylphidolopin (37), 4-hydroxymethyl-2-nitrophenol (38) and 4-methoxymethyl-2-nitrophenol (39) were isolated from four different species of bryozoans, Diaperoecia californica, Heteropora alaskensis, Tricella

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6

Boonzaaier, Melissa Kay. "Diversity and Zoogeography of South African Bryozoa." University of the Western Cape, 2017. http://hdl.handle.net/11394/6308.

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Philosophiae Doctor - PhD (Biodiversity and Conservation Biology)<br>The taxonomic history of South African bryozoans is fragmented and outdated, with the majority of published works in the 20th Century. Sampling gaps exist in deep-sea regions and parts of the coastline, while existing collections within museums remain undetermined due to scarcity of specialist taxonomists. This project forms part of a larger project aimed at updating marine invertebrate biodiversity in South Africa. Outcomes of this project include updating bryozoan biodiversity by identifying species from existing collection

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7

Bayer, Micha. "Genetic determinism, inducible morphology and phenotypic plasticity in the marine bryozoan Electra pilosa (L.)." Thesis, University of St Andrews, 1998. http://hdl.handle.net/10023/14623.

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The marine bryozoan Electra pilosa typically inhabits ephemeral substrata in the intertidal and shallow subtidal, and is probably the ecologically most successful bryozoan species in British waters. Modular organisms like E. pilosa frequently evolve pronounced phenotypic plasticity to cope with the ecological challenges resulting from passive larval dispersal into unpredictable habitats, and temporal variability of the environment colonized by the immobile adult stage. E. pilosa colonies on wave-exposed shores differ morphologically from those found on sheltered shores in possessing numerous l

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8

Nascimento, Karine Bianca. "Investigação do padrão de distribuição do briozoário cosmopolita Zoobotryon verticillatum (Ctenostomata, Vesiculariidae), através de dados moleculares." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/41/41133/tde-24092015-103445/.

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Zoobotryon verticillatum (delle Chiaje, 1822) é um briozoário cosmopolita amplamente distribuído em regiões tropicais e temperadas em todos os oceanos. Por possuir meios de distribuição natural restritos, é possível supor que o táxon se trate de um complexo de espécies crípticas ou de uma espécie vastamente introduzida por ação antrópica. Para elucidar essa questão, foram realizadas análises populacionais e filogenéticas utilizando-se dois genes mitocôndrias, citocromo c oxidase subunidade 1 região 3\' (COI-3P) e subunidade ribossomal RNA 16S (16S). As análises filogenéticas suportaram o monof

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9

Vieira, Leandro Manzoni. "Revisão taxonômica do gênero Scrupocellaria van Beneden (Bryozoa, Candidae)." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/41/41133/tde-01052013-152058/.

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O gênero Scrupocellaria senso lato (Família Candidae) compreende Ca. 92 espécies, 20 fósseis e 72 recentes. Muitas dessas espécies são morfologicamente semelhantes ou tratadas como tendo grande plasticidade morfológica, as quais consequentemente têm ampla distribuição mundial. Embora o gênero tenha uma longa história taxonômica e seus representantes sejam abundantes e comuns desde as regiões entremares até mais de 1,000 metros de profundidade, estudos taxonômicos do gênero são escassos. Os objetivos desse estudo são: (i) realizar o levantamento das espécies de Scrupocellaria, (ii) delimitar a

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10

Sabri, Zakaria. "Révision systématique du genre Lichenopora Defrance, 1823 (Bryozoa, Cyclostomata)." Lyon 1, 1988. http://www.theses.fr/1988LYO11763.

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Ce travail porte sur la revision systematique du genre lichenopora defrance 1823. On discute la validite du genre disporella considere comme synonyme de lichenopora; deux groupes ont ete identifie: les lichenopores discoides et les lichenopores lamellaires. On precise la repartition stratigraphique de quatre especes, la repartition paleogeographique du genre lichenopora du cretace jusqu'a l'actuel ainsi que les tendances evolutives et les liens phyletiques existants entre certaines especes

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11

Snell, Joanna Frances. "Palaeobiology of Bryozoa from the Much Wenlock limestone formation." Thesis, University of Birmingham, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.246486.

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12

Sabri, Zakaria. "Révision systématique du genre Lichenopora, Defrance, 1823, Bryozoa, Cyclostomata." Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb37618334n.

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13

Watts, Phillip Charles. "Population-genetic and biogeographic consequences of dispersal in cheilostome Bryozoa." Thesis, University of Liverpool, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.364350.

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14

Paquette, Lance. "Phylogenetic analysis of the bryozoan Suborder Rhabdomesina." Diss., Connect to online resource - MSU authorized users, 2008.

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15

Gruhl, Alexander [Verfasser]. "Phylogenetic significance of mesodermal and neural structures in Bryozoa / Alexander Gruhl." Berlin : Freie Universität Berlin, 2008. http://d-nb.info/1023095785/34.

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16

Carter, Michelle Clare. "The functional morphology of avicularia in cheilostome bryozoans : a thesis submitted to the Victoria University of Wellington in fulfilment of the requirements for the degree of Doctor of Philosophy in Marine Biology /." ResearchArchive@Victoria e-Thesis, 2008. http://hdl.handle.net/10063/747.

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17

Schmidt, Rolf. "Eocene bryozoa of the St Vincent Basin, South Australia - taxonomy, biogeography and palaeoenvironments /." Title page, abstract and contents only, 2003. http://web4.library.adelaide.edu.au/theses/09PH/09phs3491.pdf.

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Thesis (Ph.D.)--University of Adelaide, School of Earth and Environmental Sciences, Discipline of Geology and Geophysics, 2003?<br>Includes Publication list by the author as appendix A. "July 2003." Includes bibliographical references (leaves 308-324).

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18

Best, M. A. "Some aspects of the ecology and physiology of feeding in marine bryozoa." Thesis, University of Liverpool, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.354539.

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19

Hatton-Ellis, Tristan Willmott. "The molecular ecology of Cristatella mucedo (Bryozoa: phylactolaemata) in space and time." Thesis, University of Bristol, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.388021.

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20

Fairall, Victor Roger. "A study of the colonial organisation of two species of arborescent cellularine Bryozoa." Thesis, Swansea University, 2004. https://cronfa.swan.ac.uk/Record/cronfa43194.

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The central aim of the study was to describe the spatial arrangement of the zooids within a colony of <i>Scrupocellaria reptans</i>, in sufficient detail to reveal previously undescribed characteristics. A rudimentary population study used monthly sampling to ascertain basic biological characteristics of the species. These included settlement period, colony size changes over time and longevity. Settlement period was June to August; colonies were annual, but suffered extensive partial mortality mid-winter. The inadvertent collection of <i>Tricellaria inopinata</i>, a species new to Britain, by

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21

Ricciardi, Anthony. "Taxonomy, distribution and ecology of the freshwater sponges (Porifera:Spongillidae) and bryozoans (Ectoprocta) of eastern Canada." Thesis, McGill University, 1992. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=61081.

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Specimens of freshwater bryozoans (Ectoprocta) and sponges (Porifera: Spongillidae), two of the most poorly known faunal groups in Canada, were obtained from various locations in Ontario, Quebec, New Brunswick, Nova Scotia, Prince Edward Island, and Newfoundland. A total of 14 species of bryozoans and 15 species of sponges were identified. In 31 cases, these species were recorded from a province for the first time. Species new to Canada include the bryozoans Lophopodella carteri, Plumatella orbisperma, and Pottsiella erecta, and the sponges Radiospongilla crateriformis, Spongilla aspinosa, and

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22

Davidson, Seana Kelyn. "Biology of the bryostatins in the marine bryozoan Bugula neritina : symbiosis, cryptic speciation and chemical defense /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 1999. http://wwwlib.umi.com/cr/ucsd/fullcit?p3035405.

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23

Southwood, David Ashley. "The taxonomy and palaeoecology of Bryozoa from the Upper Permian Zechstein Reef of N.E. Eng1and." Thesis, Durham University, 1985. http://etheses.dur.ac.uk/6816/.

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Eighteen species of Bryozoa are described from the Upper Permian zechstein reef - they are assigned to ten genera in the Orders Fenestrata, Trepostomat and cyclostomata. Emended diagnoses are given at various levels and superspecific taxonomic categories within the Fenestrata are discussed. The examination of type specimens and of a large suite of new material has allowed the limits of intraspecific morphological variability to be defined and has resulted in the synonymising of several species. Three new taxa are described, for which holotypes have been designated :- Ryhopora delicata gen. nov

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24

Sogot, Caroline Elizabeth. "Hard substrate communities across the K-Pg boundary." Thesis, University of Cambridge, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.648377.

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25

Sanderson, William Guy. "Studies of influences on feeding in Antarctic and temperate Bryozoa : conducted in the British Isles." Thesis, University of Liverpool, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.386963.

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26

Knowles, Tanya. "Fossil cheilostome Bryozoa of the mid-Pliocene North Atlantic and the interference of environmental regimes." Thesis, University of Reading, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.501324.

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The mid-Pliocene warm period (3.29-2.97 Ma) was a time broadly characterised by global warmth and high sea levels. It represents the last time in Earth history when the level of atmospheric CO2 was similar to today (~ 380 ppm) and as such, it may provide a model for future global warming. The Mean Annual Range of Temperature (MART) experienced by a bryozoan colony can be estimated utilising the inverse relationship between zooid size in cheilostome bryozoans and water temperature at the time of budding (O'Dea and Okamura, 2000a). In this study the technique is applied to Pliocene bryozoan mate

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27

Swezey, Daniel Sergio. "Ocean Acidification on the California Coast| Responses of Marine Bryozoa to a High CO2 Future." Thesis, University of California, Davis, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10036209.

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<p> As a result of human activities, the level of CO<sub>2</sub> in the Earth’s atmosphere has increased by nearly 40% since the industrial revolution. The rate of green house gas emission is accelerating, with current trends exceeding those predicted by “worst case” global climate change scenarios. The chemistry of the ocean is fundamentally changing as a result of increasing atmospheric CO<sub>2</sub>, which dissolves in seawater, making it more acidic, a process referred to as ocean acidification (OA). A rapidly expanding body of science is now being generated to understan

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28

Eisenbarth, Sophie. "Isolierung, Strukturaufklärung und Untersuchungen zur Biosynthese von Sekundärmetaboliten aus Physarum polycephalum (Myxomycetes) und Pentapora fascialis (Bryozoa)." Diss., lmu, 2003. http://nbn-resolving.de/urn:nbn:de:bvb:19-7626.

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29

Dutra, Felipe de Souza. "Influência da heterogeneidade ambiental na aptidão e plasticidade fenotípica do briozoário marinho Schizoporella errata (Bryozoa, Cheilostomata)." reponame:Repositório Institucional da UFABC, 2015.

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Orientador: Prof. Dr. Gustavo Muniz Dias<br>Dissertação (mestrado) - Universidade Federal do ABC, Programa de Pós-Graduação em Evolução e Diversidade, 2015.<br>Em ambientes heterogêneos, a evolução pode favorecer a plasticidade fenotípica como forma de aumentar a gama de condições nas quais os organismos podem sobreviver e reproduzir. Essa heterogeneidade pode ser o resultado da variação das condições naturais, mas atividades antrópicas também podem aumentar a heterogeneidade mesmo em pequenas escalas. Para saber como um organismo responde a essa heterogeneidade em pequena escala, investigamos

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30

Bone, Elisa K. "Colonial integration and the maintenance of colony form in encrusting bryozoans /." Connect to thesis, 2006. http://eprints.unimelb.edu.au/archive/00003224.

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31

CAVALCANTI, Thaynã Ewerlin Ribeiro. "Briozoofauna associada às esponjas em ambientes recifais (Pernambuco, Brasil)." Universidade Federal de Pernambuco, 2016. https://repositorio.ufpe.br/handle/123456789/17960.

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Submitted by Haroudo Xavier Filho (haroudo.xavierfo@ufpe.br) on 2016-10-07T14:36:45Z No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Dissertação_ThaynaCavalcanti_BiologiaAnimal_2016.pdf: 2263756 bytes, checksum: 798ca1c12e15256db092df9fe703fdaa (MD5)<br>Made available in DSpace on 2016-10-07T14:36:45Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Dissertação_ThaynaCavalcanti_BiologiaAnimal_2016.pdf: 2263756 bytes, checksum: 798ca1c12e15256db092df9fe703fdaa (MD5) Previous issue date: 2

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32

Rapson, Trevor Douglas. "Bioactive 4-methoxypyrrolic natural products from two South African marine invertebrates." Thesis, Rhodes University, 2005. http://hdl.handle.net/10962/d1006766.

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This thesis presents an investigation of the 4-methoxypyrrolic constituents of two South African marine invertebrates, the nudibranch Tambja capensis and the bryozoan Bugula dentata. Three known compounds tambjamine A (7), tambjamine E (13) and the tetrapyrrole (15) were isolated during this investigation. All three compounds were shown to be active against oesophageal cancer in accordance with the general anticancer and immunosuppressive properties observed for 4-methoxypyrrolic natural products. Tambjamine A (7), tambjamine E (13) and the tetrapyrrole (15), together with tambjamine K (21) an

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33

Scholz, Joachim, Kiyonori Nakajima, Teruaki Nishikawa, Jürgen Kaselowsky, and F. Shunsuke Mawatari. "First discovery of Bugula stolonifera Ryland, 1960 (Phylum Bryozoa) in Japanese waters, as an alien species to the Port of Nagoya." 名古屋大学博物館, 2003. http://hdl.handle.net/2237/7285.

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34

Nytch, Christopher J. "Bad-Boy Bryozoan Biomarkers : Cheilostome Distribution Patterns Along a Bahamian Depth Gradient." Oberlin College Honors Theses / OhioLINK, 2000. http://rave.ohiolink.edu/etdc/view?acc_num=oberlin1415358481.

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35

Geraldine, Winzar. "Bryozoa of Antarctica : a first appraisal of the samples collected from 1929 to 1931 during the B.A.N.Z. Antarctic Research Expedition under the leadership of Sir Douglas Mawson /." Title page, contents and abstract only, 1998. http://web4.library.adelaide.edu.au/theses/09SB/09sbw795.pdf.

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Thesis (B. Sc.(Hons.))--University of Adelaide, Dept. of Geology and Geophysics, 1998.<br>Location of stations off Antarctica stn. 30: Lat. 66 48's; Long. 71 24'E Stn. 41:Lat. 65 48's; Long. 53 16'E Stn. 107: Lat 66 45's; Long. 62 03'E. Bibliography leaves 163-164.

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36

Aguiar, Bruno Sayão de. "Avaliação de identidade taxonômica de Amathia cf. crispa e Amathia cf. vidovici (Bryozoa: Ctenostomata) com ocorrência ao longo da costa brasileira, a partir de dados morfológicos e moleculares." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/41/41133/tde-19052015-092454/.

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Este trabalho visa esclarecer a identidade taxonômica de duas espécies de briozoários reportadas para o litoral brasileiro como Amathia cf. vidovici e Amathia cf. crispa, baseando-se em análises morfológicas e moleculares, utilizando os genes COI e 16S, que haviam se mostrado eficientes na diferenciação genética de outras espécies do gênero Amathia. Colônias foram amostradas em diversas localidades ao longo da costa brasileira, de Fortaleza, CE, a Palhoça, SC, tendo sido obtidas 107 amostras de A. cf. vidovici e 18 de A. cf. crispa. Uma espécie nova foi detectada para cada grupo avaliado: Amat

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37

Billing, Ian Michael. "British carboniferous Bryozoan biogeography." Thesis, Durham University, 1991. http://etheses.dur.ac.uk/6289/.

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The geographical and temporal distributions of the British Carboniferous Bryozoa have been determined, incorporating data from fieldwork (including localities in Scotland, North England, North Wales, South Wales, and Avon), museum collections, and literature searches. A total of 126 species has been recognised, though further work may reveal some synonymies within this list. The forty species collected during the fieldwork have been identified by reference to previous taxonomic work; most species can be assigned to established taxonomic descriptions, but two new species, Rhombopora bancrofti a

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38

Figuerola, Balañá Blanca. "Biodiversity and Chemical ecology in Antarctic bryozoans = Biodiversitat i ecologia química de briozous antàrtics." Doctoral thesis, Universitat de Barcelona, 2013. http://hdl.handle.net/10803/129165.

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The current thesis covers two important and poorly known aspects of Antarctic bryozoans: biodiversity and chemical ecology. The comparative analyses of diversity carried out here (Chapters 1 and 2) between Antarctica and the last separated fragments of Gondwana support the hypothesis of the sequential separation of Gondwana. We discuss that the high number of species from the Argentine Patagonian (AP) region shared with Antarctica found in our study question the real extent of Antarctic isolation for cheilostome bryozoans. The presence of shared common bryozoan species between these two region

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39

McGurk, Charles. "Culture of malacosporeans (Myxozoa) and development of control strategies for proliferative kidney disease." Thesis, University of Stirling, 2005. http://hdl.handle.net/1893/37.

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Proliferative kidney disease (PKD) poses a high financial burden upon the freshwater salmonid aquaculture industry of Europe and North America. The alternate hosts of the causative agent, Tetracapsuloides bryosalmonae (Myxozoa: Malacosporea), have been identified as freshwater bryozoans (Bryozoa: Phylactolaemata) within which spores capable of infecting salmonid fish develop. Currently, control of PKD relies upon complex management practices, with no licensed prophylaxis or treatment available. Assessment of the nutritional preferences of phylactolaemate bryozoans allowed development of an opt

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40

Hartikainen, Hanna-Leena. "Freshwater bryozoan abundence, eutrophication and salmonid fish disease." Thesis, University of Reading, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.493801.

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This research investigates the links between nutrient enrichment, bryozoan abundance and the development of myxozoan parasites in bryozoans. It was found that bryozoan abundances are elevated in nutrient-rich rivers, demonstrating the potential bio-indicator value of bryozoans and predicting increased bryozoan abundances with increased planktonic productivity when space is not limiting. A comprehensive set of laboratory microcosm studies showed also that experimental nutrient enrichment increased growth rates and statoblast production in Fredericella sultana, corroborating the results from fie

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41

Ward, Mark Andrew. "The ecology of subtidal encrusting bryozoans from three temperate water communities off the South of the Isle of Man." Thesis, University of Liverpool, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.236435.

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42

Robinson, Nicole. "INTERACTIONS BETWEEN THE NUDIBRANCH OKENIA ZOOBOTRYON AND ITS BRYOZOAN." Master's thesis, University of Central Florida, 2004. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3299.

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In the Indian River Lagoon, the nudibranch Okenia zoobotryon and its egg masses are found attached to the bryozoan Zoobotryon verticillatum throughout the year. Okenia zoobotryon is thought to live, feed, and reproduce exclusively on Z. verticillatum, which would make this a very specialized predator-prey interaction. The primary goal of my study was to document certain aspects of the ecological and chemical relationships between Z. verticillatum and O. zoobotryon. Specifically, I wanted to understand the cues used by the nudibranch to locate and remain on Z. verticillatum. Population surveys

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43

Hunter, Ewan. "Variation of growth and reproduction in a marine bryozoan." Thesis, Bangor University, 1991. https://research.bangor.ac.uk/portal/en/theses/variation-of-growth-and-reproduction-in-a-marine-bryozoan(01c416d6-a1a4-496d-8ffc-ade56209de43).html.

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This thesis investigates aspects of growth and reproduction in the marine bryozoan Celleporella hyalina (L. ). It was found that C. hyalina could live and grow in the laboratory on a range of algal diets. Chiorophyte algae proved unsuitable, but Rhodomonas baltica proved outstanding as a foodstuff. Astogeny of Rhodomonas fed colonies was the same as that reported for naturally occurring colonies, and resulted in the production of viable larvae. It was further noted that female zooids were occasionally produced in the basal layer. C. hyalina colonies were able to grow and attain sexual maturity

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44

Pagès, Escolà Marta. "New insights into the ecology and conservation of bryozoans: from global diversity patterns to the responses to anthropogenic stressors in the Mediterranean Sea = Noves aproximacions a l’ecologia i conservació dels briozous: des dels patrons globals de diversitat fins les respostes als impactes humans al Mar Mediterrani." Doctoral thesis, Universitat de Barcelona, 2019. http://hdl.handle.net/10803/668538.

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Marine ecosystems are directly threatened by multiple and interactive human stressors at global and local scales. Hence, it is vital to study biodiversity and ecological patterns through a multi-disciplinary approach, from understanding global diversity patterns to evaluating the ecological responses of species to different impacts in order to protect marine ecosystems. In this thesis, we focused on bryozoans, an abundant group of sessile marine invertebrates distributed worldwide, but generally understudied. Accordingly, in this thesis we provide different approaches to understand discovery a

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Whitehead, John William. "Experimental ecology of epialgal bryozoans." Thesis, Bangor University, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.285518.

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Hill, Samantha. "The ecology and conservation of the rare freshwater bryozoan, Lophopus crystallinus." Thesis, University of Reading, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.434311.

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Price, Heather Leigh. "Investigation of larval sensory systems in the marine bryozoan, Bugula neritina." DigitalCommons@CalPoly, 2015. https://digitalcommons.calpoly.edu/theses/1410.

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Bugula neritina is a sessile marine bryozoan with a pelagic larval stage. Larvae frequently settle on boat hulls, facilitating the introduction of B. neritina to bays and estuaries worldwide. Adrenergic agonists, such as the vertebrate hormone noradrenaline, inhibit larval settlement in a variety of marine invertebrate species, including B. neritina. Light also inhibits B. neritina larval settlement, yet the underlying mechanisms by which light and adrenergic compounds exert their effects on larvae are not well understood. Octopamine is considered the invertebrate analog of noradrenaline, and

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Waeschenbach, A. "Molecular evolutionary processes in ctenostome bryozoans." Thesis, Swansea University, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.639319.

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The phylogenetic relationships between species of the stoloniferan ctenostome bryozoan genus <i>Bowerbankia</i> were examined using DNA sequences for two mitochondrial genes, 12S rDNA and cytochrome <i>c </i>oxidase subunit I (COI). The resultant phylogeny based on COI sequences was shown to be confounded by nuclear mitochondrial sequences (Numts). Primers specific to mtDNA copies of COI were designed. 12S rDNA sequences with mutations in highly conserved regions, as determined by secondary structure folding, are also suspected to be Numts, however, 12S rDNA Numts and cytoplasmic mitochondrial

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Tompsett, Scott. "Taxonomy, morphometrics, and phylogeography of the cheilostome bryozoan genus Schizoporella in Europe." Thesis, Aberystwyth University, 2010. http://hdl.handle.net/2160/fe2d54b9-b4c2-4bf2-bcea-e98d897d81f9.

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Manriquez, Patricio H. "Mate choice and reproductive investment in the cheilostome bryozoan Celleporella hyalina (L.)." Thesis, Bangor University, 1999. https://research.bangor.ac.uk/portal/en/theses/mate-choice-and-reproductive-investment-in-the-cheilostome-bryozoan-celleporella-hyalina-l(213eab65-9c53-4769-869d-8fe403021006).html.

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In the present research several aspects of the reproductive biology of the marine hermaphroditic bryozoan, Celleporell hyalin (Linnaeus, 1767) were investigated. First (see Chapter 2), aliquots, of different ages from a stock of allosperm suspension were used to fertilize a series of virgin ramets, so characterizing the decay in fertility of released sperm and any effects of sperm ageing on subsequent embryogenesis and larval metamorphosis. The effect of temperature on the above variables was also investigated. The fertile half-life of C. hvalina sperm was about 1-2 h, although significant dec

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