Effects of food availability and irradiance on photosynthesis and reproductive investment in sea slugs Elysia viridis

Detalhes bibliográficos
Autor(a) principal: Ribeiro, Mariana Isabel Teixeira
Data de Publicação: 2017
Tipo de documento: Dissertação
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10773/21369
Resumo: This work aims to investigate the role of food and light availability in the photosynthesis and maternal investment of the sea slug Elysia viridis. Two experiments were conducted to test the importance of food – Codium tomentosum – and to test the importance of the autotrophic component with three different food and light regimes, respectively. The results suggest that maternal investment is greater when food exists in abundance and less when animals are starving. A positive relationship was also observed between the abundance of food and the length of the animal, the egg mass area and egg volume. The study investigating the maternal investment in three different light regimes had some experimental limitations; however, it was observed that sea slugs exposed to an average light intensity had a greater investment in reproduction. It can be concluded that both heterotrophic and autotrophic components influence the investment of these sea slugs in their reproduction.
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spelling Effects of food availability and irradiance on photosynthesis and reproductive investment in sea slugs Elysia viridisLesmas do marNutriçãoFotossinteseThis work aims to investigate the role of food and light availability in the photosynthesis and maternal investment of the sea slug Elysia viridis. Two experiments were conducted to test the importance of food – Codium tomentosum – and to test the importance of the autotrophic component with three different food and light regimes, respectively. The results suggest that maternal investment is greater when food exists in abundance and less when animals are starving. A positive relationship was also observed between the abundance of food and the length of the animal, the egg mass area and egg volume. The study investigating the maternal investment in three different light regimes had some experimental limitations; however, it was observed that sea slugs exposed to an average light intensity had a greater investment in reproduction. It can be concluded that both heterotrophic and autotrophic components influence the investment of these sea slugs in their reproduction.Este trabalho pretende investigar o papel das componentes heterotrófica e autotrófica no investimento maternal da lesma do mar Elysia viridis. Foram efetuadas duas experiências para testar a importância da disponibilidade de alimento – Codium tomentosum – e para testar a importância da componente autotrófica, com três regimes diferentes de comida e de luz. Os resultados sugerem que o investimento maternal é maior quando a comida existe em abundância e menor quando os animais não têm acesso ao alimento; foi notado também uma relação positiva entre a abundância de alimento e o comprimento do animal, o tamanho das suas posturas e dos seus ovos. O estudo que investigou o investimento maternal em três diferentes regimes de luz teve algumas limitações experimentais, no entanto, pode-se observar que as lesmas do mar expostas a uma intensidade média de luz têm um maior investimento na reprodução. Logo concluímos que ambas as componentes heterotrófica e autotrófica influenciam o investimento destes animais na sua reprodução.Universidade de Aveiro2018-01-09T10:21:12Z2017-01-01T00:00:00Z2017info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/10773/21369TID:201940060engRibeiro, Mariana Isabel Teixeirainfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-02-22T11:42:09Zoai:ria.ua.pt:10773/21369Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:55:55.634048Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Effects of food availability and irradiance on photosynthesis and reproductive investment in sea slugs Elysia viridis
title Effects of food availability and irradiance on photosynthesis and reproductive investment in sea slugs Elysia viridis
spellingShingle Effects of food availability and irradiance on photosynthesis and reproductive investment in sea slugs Elysia viridis
Ribeiro, Mariana Isabel Teixeira
Lesmas do mar
Nutrição
Fotossintese
title_short Effects of food availability and irradiance on photosynthesis and reproductive investment in sea slugs Elysia viridis
title_full Effects of food availability and irradiance on photosynthesis and reproductive investment in sea slugs Elysia viridis
title_fullStr Effects of food availability and irradiance on photosynthesis and reproductive investment in sea slugs Elysia viridis
title_full_unstemmed Effects of food availability and irradiance on photosynthesis and reproductive investment in sea slugs Elysia viridis
title_sort Effects of food availability and irradiance on photosynthesis and reproductive investment in sea slugs Elysia viridis
author Ribeiro, Mariana Isabel Teixeira
author_facet Ribeiro, Mariana Isabel Teixeira
author_role author
dc.contributor.author.fl_str_mv Ribeiro, Mariana Isabel Teixeira
dc.subject.por.fl_str_mv Lesmas do mar
Nutrição
Fotossintese
topic Lesmas do mar
Nutrição
Fotossintese
description This work aims to investigate the role of food and light availability in the photosynthesis and maternal investment of the sea slug Elysia viridis. Two experiments were conducted to test the importance of food – Codium tomentosum – and to test the importance of the autotrophic component with three different food and light regimes, respectively. The results suggest that maternal investment is greater when food exists in abundance and less when animals are starving. A positive relationship was also observed between the abundance of food and the length of the animal, the egg mass area and egg volume. The study investigating the maternal investment in three different light regimes had some experimental limitations; however, it was observed that sea slugs exposed to an average light intensity had a greater investment in reproduction. It can be concluded that both heterotrophic and autotrophic components influence the investment of these sea slugs in their reproduction.
publishDate 2017
dc.date.none.fl_str_mv 2017-01-01T00:00:00Z
2017
2018-01-09T10:21:12Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10773/21369
TID:201940060
url http://hdl.handle.net/10773/21369
identifier_str_mv TID:201940060
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade de Aveiro
publisher.none.fl_str_mv Universidade de Aveiro
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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