Waterborne cues from crabs induce thicker skeletons, smaller gonads and size-specific changes in growth rate in sea urchins
| Autor: | Amy S. Johnson, Olaf Ellers, Rebecca L. Selden |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2009 |
| Předmět: |
0106 biological sciences
animal structures Biomedicine general Zoology Aquatic Science Oceanography Microbiology 010603 evolutionary biology 01 natural sciences biology.animal 14. Life underwater Growth rate Sea urchin Ecology Evolution Behavior and Systematics Original Paper Strongylocentrotus droebachiensis Ecology biology Decapoda urogenital system 010604 marine biology & hydrobiology Life Sciences Marine invertebrates biology.organism_classification Crustacean Spine (zoology) embryonic structures Cancer borealis |
| Zdroj: | Marine Biology Selden, Rebecca; Johnson, Amy S.; & Ellers, Olaf. (2009). Waterborne cues from crabs induce thicker skeletons, smaller gonads and size-specific changes in growth rate in sea urchins. Marine Biology: International Journal on Life in Oceans and Coastal Waters, 156(5), pp 1057-1071. doi: 10.1007/s00227-009-1150-0. Retrieved from: http://www.escholarship.org/uc/item/5kc8249w |
| ISSN: | 1432-1793 0025-3162 |
| Popis: | Indirect predator-induced effects on growth, morphology and reproduction have been extensively studied in marine invertebrates but usually without consideration of size-specific effects and not at all in post-metamorphic echinoids. Urchins are an unusually good system, in which, to study size effects because individuals of various ages within one species span four orders of magnitude in weight while retaining a nearly isometric morphology. We tracked growth of urchins, Strongylocentrotus droebachiensis (0.013–161.385 g), in the presence or absence of waterborne cues from predatory Jonah crabs, Cancer borealis. We ran experiments at ambient temperatures, once for 4 weeks during summer and again, with a second set of urchins, for 22 weeks over winter. We used a scaled, cube-root transformation of weight for measuring size more precisely and for equalizing variance across sizes. Growth rate of the smallest urchins (summer |
| Databáze: | OpenAIRE |
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