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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Evidence for enhanced late-stage larval quality, not survival, through maternal carry-over effects in a space monopolizing barnacle

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Author(s):
Kasten, Paula [1] ; Jenkins, Stuart R. [2] ; Tremblay, Rejean [3] ; Flores, Augusto A. V. [1]
Total Authors: 4
Affiliation:
[1] Univ Sao Paulo, Ctr Biol Marinha CEBIMar, Rod Manoel Hipolito Rego, Km 131-5, BR-11600000 Sao Sebastiao, SP - Brazil
[2] Bangor Univ, Sch Ocean Sci, Anglesey LL59 5AB - Wales
[3] Univ Quebec Rimouski, Inst Sci Mer, 310 Allee Ursulines, Rimouski, PQ G5L 3A1 - Canada
Total Affiliations: 3
Document type: Journal article
Source: Hydrobiologia; v. 830, n. 1, p. 277-286, MAR 2019.
Web of Science Citations: 1
Abstract

Understanding the effects of maternal and pelagic resource allocation on larval traits is essential to better understand population dynamics of marine benthic invertebrates. We tested how different levels of food supply to adult barnacles and their feeding larvae (nauplii) might alter survival to the settling cyprid larval stage and cyprid quality. Median development time did not vary, except when both parents and larvae were given a low food supply, which delayed the time to metamorphosis by over 40%. Survival to the cyprid stage was only affected by larval feeding, which doubled in better-fed nauplii. In contrast, cyprid size showed a more complex response, prone to additive effects of maternal and larval provisioning. Moreover, the resulting size-range observed for experimental cyprids (spanning over 70% of the minimum cyprid size) mirrored the variation found in the coastal plankton, suggesting that food supply may exert similar effects in nature. Given that barnacles nearly saturate available habitat under favorable conditions, maternal allocation resulting in enhanced late-stage larval quality may be adaptive since competition for available settling space is likely intense. On the other side, severe resource limitation through embryogenesis and larval development may impose delayed metamorphosis and thus enhanced potential for transport and the colonization of marginal habitats, where intraspecific competition may be lower and larval quality less critical. (AU)

FAPESP's process: 15/10327-2 - Barnacle reproductive strategies under thermal stress: tropical versus temperate responses
Grantee:Paula Kasten
Support Opportunities: Scholarships abroad - Research Internship - Doctorate
FAPESP's process: 08/10085-5 - Processes regulating larval settlement, vertical distribution, somatic growth and reproductive output of intertidal rocky shore barnacles
Grantee:Augusto Alberto Valero Flores
Support Opportunities: Regular Research Grants
FAPESP's process: 13/01446-2 - Bottom-up trophic control of recruitment in marine invertebrates with indirect development: barnacles as a case-study
Grantee:Augusto Alberto Valero Flores
Support Opportunities: Regular Research Grants
FAPESP's process: 12/17380-8 - Latent or cumulative effects? The effects of maternal manipulation and pelagic trophic condition in recruitment rate of intertidal barnacles
Grantee:Paula Kasten
Support Opportunities: Scholarships in Brazil - Doctorate