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Effects of food concentration on life history metrics for planktotrophic larvae. Ordinary least squares regression lines are displayed only for groups with significant (P # 0.05) correlations (-all data, --Crepidula fornicata, and --Neogastropoda). (A) Food concentration and time to metamorphosis. Significant correlation for all planktotrophs (Y $ 2 3 10 -5 x + 17.917, R 2 $ 0.1034). (B) Food concentration and growth rate. Significant correlations for C. fornicata (Y$ 0.0003x + 1.8521, R 2 $ 0.2728) and Neogastropoda (Y $ 0.0002x + 8.3205, R 2 $ 0.3737).

Effects of food concentration on life history metrics for planktotrophic larvae. Ordinary least squares regression lines are displayed only for groups with significant (P # 0.05) correlations (-all data, --Crepidula fornicata, and --Neogastropoda). (A) Food concentration and time to metamorphosis. Significant correlation for all planktotrophs (Y $ 2 3 10 -5 x + 17.917, R 2 $ 0.1034). (B) Food concentration and growth rate. Significant correlations for C. fornicata (Y$ 0.0003x + 1.8521, R 2 $ 0.2728) and Neogastropoda (Y $ 0.0002x + 8.3205, R 2 $ 0.3737).

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The goal of this article was to use a systematic review of studies on the larval stages of gastropods reared to metamorphosis to determine whether there are general patterns for the effects of temperature, rearing density, and food availability on larval development and performance among species, major taxa, and modes of development. Most studies d...

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Context 1
... the 645 experimental treatments with planktotrophic larvae, only 127 (19.7%) reported both food density and time to metamorphosis. For planktotrophic larvae, overall, there was a significant positive correlation between food density and time to metamorphosis (n ¼ 127, P < 0.001, r ¼ 0.321; Fig. 4). This pattern, however, was driven by differences among taxa. There was no significant correlation for all caenogastropods together (n ¼ 103, P ¼ 0.576), or caenogastropods other than Crepidula fornicata or the neogastropods (n ¼ 46, P ¼ 0.933). For neogastropods (n ¼ 10, P ¼ 0.069) and heterobranchs (n ¼ 24, P ¼ 0.238), there was ...
Context 2
... with planktotrophic larvae. Overall, there was no significant effect of food density on growth (n ¼ 248, P ¼ 0.932). This pattern was consistent for all caenogastropods (n ¼ 221, P ¼ 0.752) and caenogastropods other than Crepidula fornicata that were not neogastropods (n ¼ 106, P ¼ 0.891). For C. fornicata (n ¼ 87, P < 0.001, r ¼ 0.522; Fig. 4) and neogastropods (n ¼ 28, P ¼ 0.001, r ¼ 0.611; Fig. 4), however, there was a significant positive correlation between food density and larval growth. There was no correlation for the heterobranchs (n ¼ 27, P ¼ ...
Context 3
... no significant effect of food density on growth (n ¼ 248, P ¼ 0.932). This pattern was consistent for all caenogastropods (n ¼ 221, P ¼ 0.752) and caenogastropods other than Crepidula fornicata that were not neogastropods (n ¼ 106, P ¼ 0.891). For C. fornicata (n ¼ 87, P < 0.001, r ¼ 0.522; Fig. 4) and neogastropods (n ¼ 28, P ¼ 0.001, r ¼ 0.611; Fig. 4), however, there was a significant positive correlation between food density and larval growth. There was no correlation for the heterobranchs (n ¼ 27, P ¼ ...