NDLI: Food regime modulates physiological processes underlying size differentiation in juvenile intertidal mussels Mytilus galloprovincialis

Content Provider	Springer Nature Link
Author	Tamayo, David Azpeitia, Katerin Markaide, Pablo Navarro, Enrique Ibarrola, Irrintzi
Copyright Year	2016
Abstract	Feeding and growth experiments were conducted to test the hypothesis that physiological attributes responsible for size differentiation among bivalves likely vary with environmental conditions. Juvenile mussels (Mytilus galloprovincialis) were collected from an intertidal population in Biscay, Spain (43°24′42,462″N02°56′43,659″W), in January 2007 and 2009. These mussels were maintained in the laboratory under either restrictive or optimal feeding conditions until fast- and slow-growing individuals on each maintenance regime could be identified. After fast- and slow-growing individuals were identified, the components of energy balance responsible for such growth rate differences were measured. The analysis of physiological traits indicates that under optimal food supply conditions, the capacity to ingest and absorb food and associated costs of growth are the main factors underlying growth rate differences. The set of physiological differences changed when size differentiation took place under restrictive food conditions. Higher rates of absorption coupled with reduced rates of metabolism accounted for faster growth in this case, especially under low food rations.
Starting Page	1
Ending Page	13
Page Count	13
File Format	PDF
ISSN	00253162
Journal	Marine Biology
Volume Number	163
Issue Number	6
e-ISSN	14321793
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2016-05-09
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Marine & Freshwater Sciences Freshwater & Marine Ecology Oceanography Microbiology Zoology
Content Type	Text
Resource Type	Article
Subject	Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics

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