Pernet Bruno

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Pernet
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Bruno
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  • Dataset
    Southern California sites surveyed for Ficopomatus enigmaticus in Orange and Los Angeles Counties, California, USA, from August to October 2015
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2019-08-05) Pernet, Bruno
    Southern California sites surveyed for Ficopomatus enigmaticus in Orange and Los Angeles Counties, California, USA, from August to October 2015. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/682794
  • Dataset
    Temperature, salinity, and fluorescence of seawater collected from Alamitos Bay, Long Beach, CA during 2017-2019
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2020-07-27) Pernet, Bruno
    Temperature, salinity, and fluorescence of seawater collected for larval food limitation experiments. Water was collected during 2017-2019 from a dock in Alamitos Bay, Long Beach, CA, USA. Salinity, temperature and chl a relative fluorescence were measured within 20 minutes of collection. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/816645
  • Dataset
    Measurements on each beaker’s initial chl a concentration from larval food limitation experiments conducted on the sand dollar Dendraster excentricus
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2020-07-27) Pernet, Bruno
    Measurements on each beaker’s initial chl a concentration from larval food limitation experiments conducted on the sand dollar Dendraster excentricus. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/819379
  • Dataset
    Metamorphic competence of Dendraster excentricus larvae under three experimental treatment conditions
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2020-07-27) Pernet, Bruno
    This dataset contains information on metamorphic competence of Dendraster excentricus larvae exposed to three treatment conditions during larval food limitation experiments. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/816688
  • Dataset
    Egg sizes and macromere allocation for diverse annelids and molluscs
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2019-08-02) Pernet, Bruno
    Egg sizes and macromere allocation for annelids and molluscs used in a comparative analysis of allocation of cytoplasm to macromeres. Many of these data were obtained from the literature, but some were obtained directly by the authors. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/683186
  • Dataset
    Measurements on each beaker’s final chl a concentration from larval food limitation experiments conducted on the sand dollar Dendraster excentricus
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2020-07-27) Pernet, Bruno
    Measurements on each beaker’s final chl a concentration from larval food limitation experiments conducted on the sand dollar Dendraster excentricus. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/819293
  • Dataset
    Mortality rate estimates for larvae in three treatments during larval food limitation experiments
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2020-07-27) Pernet, Bruno
    Mortality rate estimates for Dendraster excentricus larvae exposed to three treatment types during larval food limitation experiments. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/816888
  • Dataset
    Body length and postoral arm length of Dendraster excentricus larvae measured under three treatments during larval food limitation experiments
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2020-07-27) Pernet, Bruno
    Body length and postoral arm length of Dendraster excentricus larvae measured under three treatments during larval food limitation experiments. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/816664
  • Dataset
    Body length, right postoral rod length, and stomach length of Dendraster excentricus and Lytechinus pictus larvae raised at three culture densities on two food rations from 2021-2022 (LIPs on Larval Feeding project)
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2022-09-26) Pernet, Bruno
    The feeding larvae of many echinoids develop long postoral arms relative to body length when food is sparse but relatively short postoral arms when food is abundant, a response thought to adaptively adjust feeding capability. However, in an important recent study, larvae of Dendraster excentricus exhibited this food-conditioned plasticity only when reared at a high density typical of laboratory cultures; when reared at a lower density more representative of larval densities in nature they did not exhibit this plastic response. This suggests that laboratory results cannot be easily extended to make inferences about phenotypic plasticity in nature. We replicated this study and extended it to an even lower larval culture density and to a second species, Lytechinus pictus. Larvae of D. excentricus developed longer arms adjusted for body length when fed the lower of two food rations at all culture densities, though differences were only marginally significant at the lower culture density in one experiment. Larvae of L. pictus tended to develop longer arms adjusted for body length at lower food rations, though differences only approached statistical significance at the highest culture density in one experiment. For both species, contrasts between food rations almost always showed an inverse relationship between postoral arm length and stomach length, consistent with prior work demonstrating trade-offs in investment in these two features characteristic of phenotypic plasticity. The data submitted here were collected in 2021 and 2022 in the laboratory at California State University, Long Beach. Two datafiles are provided: one containing data on actual densities in culture vessels (to check on treatment effectiveness: density_counts.csv), and one containing all the larval morphology data (density_morphometrics.csv). In addition, we provide R code used to produce the analyses in a paper describing this work (Nilsson P, Pernet B. (In press, 2022) Echinoid larvae can express food-conditioned morphological plasticity at ecologically relevant culture densities. Mar Ecol Prog Ser). For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/879120