Gut reaction by heartless shrimps: experimental evidence for the role of the gut in generating circulation before cardiac ontogeny.

Gut reaction by heartless shrimps: experimental evidence for the role of the gut in generating circulation before cardiac ontogeny. Research Abstract Details 

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Gut reaction by heartless shrimps: experimental evidence for the role of the gut in generating circulation before cardiac ontogeny. Abstract Text:

John I Spicer,

Before the appearance of a functional heart in many invertebrate species, the assumption was that general body movements provide circulatory function. Consequently, I investigated the frequency of gut movements in the brine shrimp, Artemia franciscana, immediately post-hatch to the point when a functional heart appeared. Prior to cardiac ontogeny, movements of internal musculature and gut provided pre-cardiac circulatory currents with the rate of gut movements increasing when swimming limbs were impeded. There was also some evidence that gut movements were responsive to low oxygen, indicating a possible regulatory function for the gut in early circulation. Overall, this suggests that general body movements are not always adequate to provide internal circulation in small, heartless individuals.

Gut reaction by heartless shrimps: experimental evidence for the role of the gut in generating circulation before cardiac ontogeny. Publishing Authors By Initials

JI Spicer,

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Gut reaction by heartless shrimps: experimental evidence for the role of the gut in generating circulation before cardiac ontogeny. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Biology letters

VOLUME: 2

Page Numbers: 580-2

Journal Abbreviation: Biol. Lett.

ISSN: 1744-9561

DAY: 22

MONTH: Dec

YEAR: 2006

Gut reaction by heartless shrimps: experimental evidence for the role of the gut in generating circulation before cardiac ontogeny. Information

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LANGUAGE: eng

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Grant and Affiliation Information for Gut reaction by heartless shrimps: experimental evidence for the role of the gut in generating circulation before cardiac ontogeny.

AFFILIATION: Marine Biology and Ecology Research Centre, School of Biological Sciences, University of Plymouth, Plymouth PL4 8AA, UK. jispicer@plymouth.ac.uk

Country: England

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MEDLINETA: Biol Lett

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