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Dissertations / Theses on the topic 'Bivalves – Habitat'

Author: Grafiati

Published: 25 May 2024

Last updated: 31 July 2025

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1

Hendy, Ian Wyndom. "Habitat creation for animals by teredinid bivalves in Indonesian mangrove ecosystems." Thesis, University of Portsmouth, 2012. https://researchportal.port.ac.uk/portal/en/theses/habitat-creation-for-animals-by-teredinid-bivalves-in-indonesian-mangrove-ecosystems(271d9f8c-8dc0-4dff-9226-f8ebf3072199).html.

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A better understanding of the fundamental role large woody debris (LWD) plays within mangrove ecosystems may provide further insights into important ecological processes, such as wood degradation and biodiversity maintenance within mangrove forests.Though the volume of fallen wood in mangrove forests can be huge, little is known of the breakdown pathways and biodiversity maintenance of LWD in mangrove ecosystems. The degree of mangrove fauna dependent upon LWD and the need for such substratum in mangrove ecosystems may provide further insights in to the important role of woody biomass in these

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2

Whiteley, Derek. "Pattern and colour polymorphisms in bivalves in relation to habitat and geography." Thesis, Oxford Brookes University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.261465.

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3

Barbier, Pierrick. "Déterminisme du recrutement des bivalves sous contraintes environnementales et anthropiques." Paris, Muséum national d'histoire naturelle, 2016. http://www.theses.fr/2016MNHN0001.

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L'objectif de cette thèse est d'analyser le déterminisme du recrutement des bivalves de milieux côtiers tempérés à travers la fonction de nurserie des habitats benthiques, les contraintes liées à la mytiliculture et à la pêche à pied récréative et les variations qualitatives et quantitatives des ressources trophiques disponibles. Les bivalves juvéniles des habitats benthiques structurés par des espèces ingénieurs ont une meilleure condition physiologique, bien qu'ils s'alimentent sur la même ressource trophique. Alors que la mytiliculture sur bouchots augmente localement l'hétérogénéité des as

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4

Pimpão, Daniel Mansur. "Moluscos bivalves da Plataforma Externa e Talude Superior ao largo de Rio Grande, Rio Grande do Sul, Brasil." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2004. http://hdl.handle.net/10183/12740.

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Com a assinatura do Brasil, em 1982, da Convenção das Nações Unidas sobre o Direito do Mar (CNUDM), que trata do uso de mares e oceanos, surge a necessidade de se conhecer melhor, através de pesquisa, a Zona Econômica Exclusiva Brasileira (ZEE). Iniciase, desse modo, o REVIZEE - Programa de Avaliação do Potencial Sustentável de Recursos Vivos da Zona Econômica Exclusiva - visando um levantamento dos recursos vivos marinhos e coordenado pelo Ministério de Meio Ambiente, dos Recursos Hídricos e da Amazônia Legal. O presente trabalho tem o objetivo de contribuir com informações que subsidiem o Pr

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5

Arnaud, Sophie. "Flux génique et phylogéographie comparée de deux espèces bivalves du Pacifique : "Pinctada mazatlanica" et " Pinctada mararitifera", marqueurs mitochodriaux et nucléaires." Montpellier 2, 2000. https://acces.bibliotheque-diderot.fr/login?url=https://www.classiques-garnier.com/numerique-bases/index.php?module=App&action=FrameMain&colname=ColGarnier&filename=SadMS01.

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Les etudes theoriques et experimentales de structure genetique en milieu marin ont generalement souligne l'importance de parametres tels que le potentiel de dispersion, la distance et la fragmentation de l'habitat dans la differentiation des populations. Les nacres perlieres pinctada mazatlanica et p. Margaritifera cumingii possedent le meme potentiel de dispersion larvaire et sont respectivement reparties le long des cotes pacifiques americaines et dans les iles du pacifique central, dans des habitats cotiers a priori continu et fragmente. La distribution de la variabilite genetique dans les

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6

Sonnier, Joseph M. "Influence of habitat complexity in structuring species-specific interactions and trophic linkages on oyster reefs of southeastern North Carolina /." Electronic version (PDF), 2006. http://dl.uncw.edu/etd/2006/sonnierj/josephsonnier.pdf.

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7

Aucoin, Serge. "Écologie de population du bivalve Pinna carnea." Thesis, Université Laval, 2008. http://www.theses.ulaval.ca/2008/25177/25177.pdf.

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8

Gilkinson, Kent Dennis. "Impacts of otter trawling on infaunal bivalves living in sandy bottom habitats on the Grand Banks." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp02/NQ54847.pdf.

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9

Onken, Kai Sven. "Effects of native freshwater mussels and leaf debris on benthic macroinvertebrate abundance and diversity : A field experiment with Margaritifera margaritifera in Vasslabäcken, Örebro county." Thesis, Karlstads universitet, Institutionen för miljö- och livsvetenskaper (from 2013), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-84485.

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Organisms that are part of complex ecosystems interact not only with other organisms but also with their environment, affecting ecosystem functions. In aquatic ecosystems filter feeders affect ecosystem functioning by transferring energy and nutrients from the water to the benthos. The filter-feeding unionoid mussels can have strong effects on nutrient release and biodeposition in streams, affecting primary and secondary production. In a 90-day field cage experiment during winter 2019-2020, effects of the critically endangered freshwater pearl mussel (Margaritifera margaritifera) and leaf litt

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10

Marenzi, Adriano Weidner Cacciatori. "Influência do cultivo de mexilhões sobre o habitat bentônico na Enseada da Armação do Itapocoroy, Penha, SC." Universidade Federal de São Carlos, 2002. https://repositorio.ufscar.br/handle/ufscar/1764.

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Made available in DSpace on 2016-06-02T19:29:48Z (GMT). No. of bitstreams: 1 TeseAWCM.pdf: 1614144 bytes, checksum: 89040f1e720a3277c1b246d663e97115 (MD5) Previous issue date: 2002-09-05<br>Mussel culture is an important activity in the state of Santa Catarina, where is developed in almost all the bays and roadsteads. This activity places the state in evidence in Latin America s production. However, this development has been spread in a disorganized way, generating environmental impacts, mainly those arisen from bio deposition of organic material at cultivation areas. The main purpose of thi

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11

Beaty, Braven B. "Development of juvenile culture techniques and testing of potential biomarkers of environmental stress in freshwater mussels (Bivalvia: Unionidae)." Diss., Virginia Tech, 1999. http://hdl.handle.net/10919/39679.

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The freshwater mussel fauna of the Clinch River in Southwest Virginia has declined in recent decades, principally due to habitat degradation from poor land-use patterns and pollutants. A study was undertaken to determine the feasibility of using river water in a flow-through culture system to rear juvenile freshwater mussels. The culture method placed juvenile mussels, confined in small dishes, into oval troughs supplied with untreated river water. Two of three years produced acceptable survival rates of 27% and 19% to an age of 90 days or greater. The third year yielded very low survival rate

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12

Zimmerman, Lora Leigh. "Propagation of Juvenile Freshwater Mussels (Bivalvia: Unionidae) and Assessment of Habitat Suitability for Restoration of Mussels in the Clinch River, Virginia." Thesis, Virginia Tech, 2003. http://hdl.handle.net/10919/10055.

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Freshwater mussel propagation techniques were tested at the Virginia Department of Game and Inland Fisheries Aquatic Wildlife Conservation Center through a series of three experiments. Experiment 1 tested the suitability of a pond and raceway for rearing juvenile oystermussels (Epioblasma capsaeformis) and wavyrayed lampmussel (Lampsilis fasciola). This experiment was prematurely terminated due to predation on mussels by fathead minnows (Pimephales promelas). Experiment 2 evaluated growth and survival of juvenile rainbow mussels in outdoor troughs and indoor aquaria. There was no significant d

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13

Feldman, Kristine Ladyka. "Contrasting patterns of habitat-specific recruitment success in sympatric species of thalassinidean shrimp : effects of epibenthic bivalve shell with implications for population control in areas with commercial oyster culture /." Thesis, Connect to this title online; UW restricted, 2001. http://hdl.handle.net/1773/5321.

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14

Silveira, Thiago Cesar Lima. "Modelagem da adequabilidade de hábitat de Corbicula fluminea (Bivalvia, Corbiculidae), Pimelodus pintado e Parapimelodus nigribarbis (Siluriformes, Pimelodidae) e Loricariichthys anus (Siluriformes, Loricariidae) em relação a preditores ambientais no Lago Guaíba, RS, Brasil." Pontifícia Universidade Católica do Rio Grande do Sul, 2015. http://hdl.handle.net/10923/7414.

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Made available in DSpace on 2015-06-23T02:05:59Z (GMT). No. of bitstreams: 1 000470920-Texto+Completo-0.pdf: 7438655 bytes, checksum: 1f769194e7be6d12d47277b9005a61f6 (MD5) Previous issue date: 2015<br>The objective of this study was to model the habitat suitability for the bivalve Corbicula fluminea, and the fishes Pimelodus pintado, Parapimelodus nigribarbis and Loricariichthys anus in relation to environmental variables in Guaíba Lake, Rio Grande do Sul, Brazil. Guaíba Lake, a large water body beside Porto Alegre city with approximately 50 km long and 19 km wide at the widest point. It ha

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15

Silveira, Thiago Cesar Lima. "Modelagem da adequabilidade de h?bitat de Corbicula fluminea (Bivalvia, Corbiculidae), Pimelodus pintado e Parapimelodus nigribarbis (Siluriformes, Pimelodidae) e Loricariichthys anus (Siluriformes, Loricariidae) em rela??o a preditores ambientais no Lago Gua?ba, RS, Brasil." Pontif?cia Universidade Cat?lica do Rio Grande do Sul, 2015. http://tede2.pucrs.br/tede2/handle/tede/6156.

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Submitted by Setor de Tratamento da Informa??o - BC/PUCRS (tede2@pucrs.br) on 2015-06-22T11:38:19Z No. of bitstreams: 1 470920 - Texto Completo.pdf: 7438655 bytes, checksum: 1f769194e7be6d12d47277b9005a61f6 (MD5)<br>Made available in DSpace on 2015-06-22T11:38:19Z (GMT). No. of bitstreams: 1 470920 - Texto Completo.pdf: 7438655 bytes, checksum: 1f769194e7be6d12d47277b9005a61f6 (MD5) Previous issue date: 2015-03-27<br>Conselho Nacional de Pesquisa e Desenvolvimento Cient?fico e Tecnol?gico - CNPq<br>Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES<br>The objective of this s

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16

Rappe, Rohani Ambo. "Environmental impacts of habitat fragmentation and heavy metal contamination on estuarine seagrass communities." Thesis, 2007. http://hdl.handle.net/1959.13/1312589.

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Research Doctorate - Doctor of Philosophy (PhD)<br>Seagrasses are generally known for their significant role in marine and estuarine ecosystems. The growth in human population along the coastal regions, where the seagrass live, makes them very vulnerable to the human-induced disturbances. Large-scale seagrass decline has been reported worldwide due to this problem. There is an evident need to monitor seagrass population to predict future changes and to protect coastal ecosystems from further degradation. The decline of seagrass beds results in their fragmentation and appearance of smaller patc

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17

Ribeiro, José Filipe Machado. "Estudo da presença de Leptospira spp. em bivalves que habitam águas doces superficiais da região de Trás-os-Montes." Master's thesis, 2021. http://hdl.handle.net/10348/11113.

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Dissertação de Mestrado em Biologia Clínica e Laboratorial<br>A leptospirose é uma doença zoonótica reemergente com distribuição mundial provocada por espiroquetas patogénicas do género Leptospira. As leptospiras patogénicas são mantidas na natureza por numerosos reservatórios selvagens e domésticos, que constituem uma potencial fonte de infeção para humanos e outros hospedeiros suscetíveis. O habitat natural destas espiroquetas é o rim dos hospedeiros infetados, sendo eliminadas para o ambiente via urina, onde se mantém viáveis em condições de humidade e temperatura adequadas, nomeadamente em

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18

Vanden, Byllaardt Julie. "The Role of Hydrodynamic Habitat in the Feeding Ecology of Freshwater Mussels (Bivalvia: Unionidae)." Thesis, 2011. http://hdl.handle.net/10214/3137.

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I examined the suspension feeding of four freshwater unionid mussels, Elliptio complanata, Elliptio dilatata, Fusconaia flava and Strophitus undulatus to help explain how more than 30 species can coexist in a single river, as well as to contribute new insights into their basic biology. I examined whether the flux of algae affected the suspension feeding (clearance rate, CR) of unionids in a flow chamber. CR varied with seston flux (J = UC, where U is the velocity and C is the algal concentration) for the 4 species examined. The lotic species (E. dilatata) cleared up to four times more water t

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