1. Measured and inferred gross energy content in diapausing Calanus spp. in a Scotian shelf basin
- Author
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Amy Ryan, Christopher T. Taggart, and Kimberley T. A. Davies
- Subjects
Energy quality ,Oceanography ,Ecology ,Energy transfer ,Calanus ,Energy density ,Carrying capacity ,Aquatic Science ,Structural basin ,Biology ,Body size ,biology.organism_classification ,Ecology, Evolution, Behavior and Systematics - Abstract
Calanus finmarchicus stage-C5 and C. hyperboreus stage-C4 diapausing in Scotian Shelfbasins are high-quality food sources because they are abundant and high inenergy content. When combined, these two variables are informative for quantify-ing energy density, carrying capacity and energy transfer in marine ecosystems.However, measuring energy content directly can be difficult and expensive. Here,we present energy (caloric) content estimates for two co-located diapausingcopepod species; C. finmarchicus C5 and C. hyperboreus C4 collected during late-summer when their energy content is at or near the annual maximum. We thendevelop several practical energy content calibrations, each designed to estimateenergy content using simple measures of Calanus spp. body size or weight. Weight-specific energy content (energy quality, kJ g
- Published
- 2012
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