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Dissertations / Theses on the topic 'Heterobranchs'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

BARROS, José Carlos Nascimento de. "Sistemática e morfometria multivariada de Pyramidellidae (Gastropoda, Heterobranchia)." Universidade Federal de Pernambuco, 2003. https://repositorio.ufpe.br/handle/123456789/8700.

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Made available in DSpace on 2014-06-12T23:01:50Z (GMT). No. of bitstreams: 2 arquivo8330_1.pdf: 19218754 bytes, checksum: da8da4277037a12acf13b0259ab030cb (MD5) license.txt: 1748 bytes, checksum: 8a4605be74aa9ea9d79846c1fba20a33 (MD5) Previous issue date: 2003<br>A família Pyramidellidae Gray, 1840 (Gastropoda, Heterobranchia, Heterostropha) está composta por gastrópodes marinhos normalmente encontrados em sedimentos do mediolitoral ou dragados durante expedições oceanográficas em profundidades variadas, sendo os seus representantes muito pequenos, alguns apresentando dimensões micro

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2

Moles, Sánchez Juan. "Antarctic heterobranch molluscs: diving into their challenging ecology, taxonomy, and systematics." Doctoral thesis, Universitat de Barcelona, 2016. http://hdl.handle.net/10803/399046.

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This thesis covers three important aspects of Antarctic heterobranchs: ecology, taxonomy, and systematics. The first section deals with ecological interactions of several nudibranchs. In Chapter 1, we chemically characterize a new natural product (a homosesterterpene) called granuloside, from Charcotia granulosa Vayssière, 1906; remarkably, this is the first record of this type of compound in marine organisms. In Chapter 2, we assess the origin, function, and distribution of granuloside in this nudibranch; we found glandular structures probably responsible for storing granuloside, as a defensi

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3

Jörger, Katharina Verfasser], and Michael [Akademischer Betreuer] [Schrödl. "Tracing evolution : Molecular phylogeny of Acochlidia (Heterobranchia,Gastropoda) / Katharina Jörger. Betreuer: Michael Schrödl." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2014. http://d-nb.info/1065180365/34.

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Jörger, Katharina [Verfasser], and Michael [Akademischer Betreuer] Schrödl. "Tracing evolution : Molecular phylogeny of Acochlidia (Heterobranchia,Gastropoda) / Katharina Jörger. Betreuer: Michael Schrödl." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2014. http://d-nb.info/1065180365/34.

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5

Undap, Nani Ingrid Jacquline [Verfasser]. "Biodiversity of Marine Heterobranchia (Gastropoda) around North Sulawesi Indonesia / Nani Ingrid Jacquline Undap." Bonn : Universitäts- und Landesbibliothek Bonn, 2020. http://d-nb.info/1219139971/34.

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6

Legendre, Marc. "Potentialités aquacoles des Cichlidae (Sarotherodon melanotheron, Tilapia guineensis) et Claridae (Heterobranchus longifilis) autochtones des lagunes ivoiriennes." Montpellier 2, 1991. http://www.theses.fr/1991MON20295.

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Après une description des étapes de présélection et de sélection des espèces d'intérêt potentiel pour la pisciculture dans les eaux saumâtres africaines, les potentialités aquacoles de trois espèces sélectionnées a partir de l'ichtyofaune de la lagune Ebrié (Côte d'Ivoire), deux tilapias (Sarotherodon melanotheron, Tilapia guineensis) et un silure (Heterobranchus longifilis), sont analysées et comparées. L'étude de la reproduction-biologie, stratégie et contrôle a été privilégiée. La dynamique des ovaires, la taille ou l'âge de première maturation sexuelle, les cycles saisonniers et la fécondi

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7

Mendivil, Malpica Alejandro. "Revisión taxonómica de las especies del género Aplysia (Gastropoda: Heterobranchia) de la costa peruana." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2021. https://hdl.handle.net/20.500.12672/17192.

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Aplysia es un género de moluscos gasterópodos que actualmente agrupa 45 especies válidas, conocidas como liebres marinas, con una distribución tropical y subtropical en los mares del mundo. Aplysia ha sido ampliamente usada como organismo modelo en neurociencia por sus neuronas gigantes y su sistema nervioso relativamente simple, y ha sido objeto de numerosas investigaciones sobre su ecología, fisiología, estrategias defensivas y productos naturales. Aunque se describieron 5 especies de Aplysia para Perú en el siglo XIX, no se han realizado estudios posteriores que incluyan un examen de

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8

Melo, Marlon Delgado. "Opistobr?nquios (mollusca: heterobranchia) do Rio Grande do Norte, Brasil, incluindo 34 novas ocorr?ncias." Universidade Federal do Rio Grande do Norte, 2015. http://repositorio.ufrn.br/handle/123456789/20348.

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Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-04-26T20:27:57Z No. of bitstreams: 1 MarlonDelgadoMelo_DISSERT.pdf: 57317504 bytes, checksum: bc0c674bf921e5980bfc858a437e34c0 (MD5)<br>Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-04-29T21:49:52Z (GMT) No. of bitstreams: 1 MarlonDelgadoMelo_DISSERT.pdf: 57317504 bytes, checksum: bc0c674bf921e5980bfc858a437e34c0 (MD5)<br>Made available in DSpace on 2016-04-29T21:49:52Z (GMT). No. of bitstreams: 1 MarlonDelgadoMelo_DISSERT.pdf: 57317504 bytes, checksum: bc0c674bf921e5980bfc858

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9

Campbell, Matthew R. "Systematics and phylogenetics of the family Streptacididae (Gastropoda: Heterobranchia) from Devonian through Triassic marine strata." [Bloomington, Ind.] : Indiana University, 2004. http://wwwlib.umi.com/dissertations/fullcit/3162227.

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Thesis (Ph.D.)--Indiana University, Dept. of Geological Sciences, 2004.<br>Title from PDF t.p. (viewed Dec. 1, 2008). Source: Dissertation Abstracts International, Volume: 66-01, Section: B, page: 0172. Co-Chairs: N. Gary Lane; Lisa M. Pratt.

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10

SANTOS, Franklin Noel dos. "A subfamilia turbonillinae Brown, 1849 (Gastropoda, Heterobranchia, Heterostropha) na margem continental do Nordeste do Brasil." Universidade Federal de Pernambuco, 2002. https://repositorio.ufpe.br/handle/123456789/8550.

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Made available in DSpace on 2014-06-12T23:00:59Z (GMT). No. of bitstreams: 2 arquivo8098_1.pdf: 15805362 bytes, checksum: c88cc6e0670419e5cc67f42878b30f55 (MD5) license.txt: 1748 bytes, checksum: 8a4605be74aa9ea9d79846c1fba20a33 (MD5) Previous issue date: 2002<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>Informa-se o resultado dos estudo sistemático, ecológico e biogeográfico dos Mollusca, Gastropoda, Turbonillinae, presentes na Margem Continental do Nordeste do Brasil. Os espécimens analisados foram adquiridos através das coleções do Museu de Malacologia Rosa de Li

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11

KERDCHUEN, NANTHAWAT. "L'alimentation artificielle d'un silure africain, heterobranchus longifilis (teleostei : clariidae): incidence du mode d'alimentation et premiere estimation des besoins nutritionnels." Paris 6, 1992. http://www.theses.fr/1992PA066196.

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Les conditions optimales d'alimentation et les besoins nutritionnels d'un silure africain, heterobranchus longifilis (teleostei: clariidae), correspondant aux differents stades de l'elevage ont ete etudies. Les essais comparatifs de l'alimentation larvaire ont montre que l'utilisation des proies planctoniques (moina, notamment) ou d'un aliment compose a base de levure et de foie de buf comme aliment de depart permet d'obtenir une survie aussi elevee qu'avec l'artemia, mais avec une croissance plus faible au cours des deux premieres semaines d'elevage. Une amelioration de la croissance est obse

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12

Lacerda, Luiz Eduardo Macedo de. "Ancylidae (Mollusca, Heterobranchia, Pulmonata, Basommatophora) do Estado do Rio de Janeiro, Brasil: morfologia, sistemática e distribuição geográfica." Universidade do Estado do Rio de Janeiro, 2011. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=2380.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Os moluscos pateliformes de água doce da região Neotropical são comumente atribuídos a família Ancylidae sensu latum, abrangendo sete gêneros com pelo menos 13 espécies válidas e sete com identificação duvidosa. Os ancilídeos possuem pequenas dimensões, alcançam no máximo 15 mm de comprimento. Sua concha é frágil, composta por duas regiões, a protoconcha e a teleoconcha, as quais apresentam caracteres relevantes para a sistemática. Na parte mole as impressões musculares, a pigmentação do manto, o sistema reprodutor e a rádula são i

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13

Brenzinger, Bastian Verfasser], and Michael [Akademischer Betreuer] [Schrödl. "Insights from enigmatic clades - comparative microanatomy and evolution of the Heterobranchia (Mollusca, Gastropoda) / Bastian Brenzinger ; Betreuer: Michael Schrödl." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2016. http://d-nb.info/114950997X/34.

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14

Padula, Anderson Vinicius Verfasser], and Michael [Akademischer Betreuer] [Schrödl. "Testing traditional concepts : biodiversity and integrative taxonomy of Brazilian opisthobranchs (Mollusca, Heterobranchia) / Vinicius Padula Anderson. Betreuer: Michael Schrödl." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2015. http://d-nb.info/1075456649/34.

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15

Oellermann, Lawrence Keith. "A comparison of the aquaculture potential of Clarias gariepinus (Burchell, 1822) and its hybrid with Heterobranchus longifilis valenciennes, 1840 in Southern Africa." Thesis, Rhodes University, 1996. http://hdl.handle.net/10962/d1005089.

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The aim of this study was to evaluate the aquaculture potential of a hybrid between the two largest African silurid catfish, Heterobranchus longifilis (HL) and Clarias gariepinus (CG) . A morphometric, meristic and karyological study showed that the hybrid shared some of the physical characteristics of both C. gariepinus and H. longifilis, while its chromosome complement and fundamental number (2N = 54, FN = 95), was intermediate between that of H. longifilis (2N = 52, FN = 92) and C. gariepinus (2N = 56, FN = 97). The HLxCG cross could therefore be regarded as a true hybrid. For the character

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16

Schmitt, Valérie [Verfasser]. "The Phenomenon of Functional Retention of Incorporated Chloroplasts in Sea Slugs (Sacoglossa, Heterobranchia, Mollusca) and Evolutionary Adaptations : Aspects of Photobiology, Cell Biology, Ecology and Behavior / Valérie Schmitt." Bonn : Universitäts- und Landesbibliothek Bonn, 2020. http://d-nb.info/1206417668/34.

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17

Page, Alison Mary. "The origin of novelties in evolution: evolution of the protoconch II of planktotrophic gastropod larvae." Thesis, 2011. http://hdl.handle.net/1828/4966.

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My research tested hypotheses about the evolutionary origin of a novel feature by modification of development. The novelty is the growing larval shell of gastropod molluscs, which emerged when gastropod larvae acquired the ability to feed. One hypothesis states that the growing larval shell in the Heterobranchia is a continuation of the embryonic phase of shell secretion. The second hypothesis states that the larval shell in the Caenogastropoda may be a precocious juvenile shell. These hypotheses implicate heterochrony. To test these hypotheses, I examined ultrastructural features of the shell

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18

Dinapoli, Angela [Verfasser]. "Phylogeny and evolution of the Heterobranchia (Mollusca, Gastropoda) / von Angela Dinapoli." 2009. http://d-nb.info/995450641/34.

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19

LaForge, Nicole Laura. "Larval development and metamorphosis of Berthella californica (Gastropoda, Heterobranchia, Pleurobranchoidea) including phylogenetic implications." Thesis, 2006. http://hdl.handle.net/1828/1996.

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Larval development of Berthella californica, a pleurobranchoidean heterobranch from the Northeastern Pacific, is described using histological sectioning, SEM, TEM, and immunolabelling. Current phylogenetic hypotheses place the Pleurobranchoidea as sister to all nudibranchs, or as sister to only the anthobranch nudibranchs. Deciding between these alternatives is difficult due to extensive homoplasy among heterobranchs. Analysis of larval morphology may help resolve this issue by identifying additional phylogenetically informative characters. Larval development has been well documented for many

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20

Cipriani, Roberto. "Construction, function, and evolution of accretionary morphologies with examples of larval and postlarval coiling in heterobranch gastropods /." 1999. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:9951775.

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