Bioenergetics of parental investment in two polychaete species with contrasting reproductive strategies: the planktotrophic Boccardia chilensis and the poecilogonic Boccardia wellingtonensis (Spionidae)

Bioenergética de la inversión parental en dos especies de poliquetos con estrategias reproductivas contrastantes: el planktotrophic Boccardia chilensis y el poecilogonic Boccardia wellingtonensis (Spionidae)

dc.creatorDoherty‐Weason, Daniel
dc.creatorOyarzun, Fernanda
dc.creatorVera, Luciano
dc.creatorBascur, Miguel
dc.creatorGuzmán, Fabián
dc.creatorSilva, Francisco
dc.creatorUrzúa, Ángel
dc.creatorBrante, Antonio
dc.date2020-06-27T02:25:43Z
dc.date2020-06-27T02:25:43Z
dc.date2020
dc.identifierMarine Ecology. 2020;41:e12574
dc.identifier1439-0485
dc.identifierhttp://repositoriodigital.ucsc.cl/handle/25022009/2005
dc.descriptionThe level of parental investment for larval nutrition may determine the life cycle in marine invertebrate species laying egg masses or capsules, where the food available for enclosed individuals would determine time and developmental stage of hatching. Most species show a unique type of larval development. However, few species are poecilogonous and combine more than one development type. Poecilogony, although scarcely studied, allows comparing different patterns of parental reproductive investment, without the phylogenetic effect of the species ancestral modes of development (phylogenetic inertia), to help to understand the factors determining life strategy evolution in marine invertebrates. The poecilogonous polychaete worm Boccardia wellingtonensis encapsulates and incubates its offspring, which then hatches as either planktotrophic larvae or benthic juveniles; while Boccardia chilensis shows a non‐poecilogonous reproductive type, producing only planktotrophic larvae. In this work, we estimated the bioenergetic and biochemical composition of brooding and non‐brooding females of B. wellingtonensis and B. chilensis to compare the costs of reproduction in these two species. Results showed that glucose, protein, lipid, and energy content were significantly higher in non‐brooding than in brooding females of B. wellingtonensis; but also contained significantly more glucose, protein, and lipid than females of B. chilensis (in absolute and relative dry weight values). The poecilogonous species showed higher energy content previous to laying offspring. Our results support the idea that the evolution of a certain reproductive and life history traits in marine invertebrates is related to adaptations in the female's reproductive investment.
dc.languageen
dc.publisherMarine Ecology
dc.sourcehttps://doi.org/10.1111/maec.12574
dc.subjectLarval development
dc.subjectLarval feeding strategies
dc.subjectMarine invertebrates
dc.subjectNurse eggs
dc.titleBioenergetics of parental investment in two polychaete species with contrasting reproductive strategies: the planktotrophic Boccardia chilensis and the poecilogonic Boccardia wellingtonensis (Spionidae)
dc.titleBioenergética de la inversión parental en dos especies de poliquetos con estrategias reproductivas contrastantes: el planktotrophic Boccardia chilensis y el poecilogonic Boccardia wellingtonensis (Spionidae)
dc.typeArticle


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