QUICK SEARCH:   [advanced] Author: Keyword(s):
Home     Help     Feedback     Subscriptions     Archive     Search     Table of Contents

First published online February 15, 2006
Journal of Experimental Biology 209, 945-955 (2006)
Published by The Company of Biologists 2006
doi: 10.1242/jeb.02102

This Article Summary Full Text Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Shillito, B. Articles by Gaill, F. Search for Related Content PubMed PubMed Citation Articles by Shillito, B. Articles by Gaill, F.

Temperature resistance studies on the deep-sea vent shrimp Mirocaris fortunata

Bruce Shillito^1,*, Nadine Le Bris², Stéphane Hourdez³, Juliette Ravaux¹, Delphine Cottin¹, Jean-Claude Caprais², Didier Jollivet³ and Françoise Gaill¹

¹ UMR CNRS 7138 `Systématique, Adaptation et Evolution', Université Pierre et Marie Curie, 7 Quai St-Bernard, Batiment A, 75252 Paris Cedex 05, France
² Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), Centre de Brest, DRO-EP, BP70, 29280 Plouzané, France
³ Station Marine de Roscoff, UPR CNRS 9042, BP74, 29682 Roscoff Cedex, France

View larger version (14K): [in a new window]   Fig. 1. Rate of oxygen consumption (µg O2 h–1) as a function of dry mass (mg), of Mirocaris fortunata individuals originating from the Lucky Strike vent site (1700 m depth), at 10°C. Open circles, solid line: atmospheric pressure experiment (exp. 0, 12 individuals). Closed circles, broken line: in situ pressure experiment (exp. 4, 17 MPa, 10 individuals). For correlation coefficients and P values, see text.

View larger version (11K): [in a new window]   Fig. 2. Mortality (% of the initial pool) of Mirocaris fortunata individuals originating from the Rainbow site (2300 m depth) as a function of time, during maintenance at atmospheric pressure, at three different temperatures: 10°C, 16°C and 21°C (73, 68, 67 individuals, respectively).

View larger version (15K): [in a new window]   Fig. 3. Mortality (% of initial pool) of Mirocaris fortunata individuals originating from the Menez Gwen site (850 m depth) as a function of time, during maintenance at atmospheric pressure, at four different temperatures: 10°C, 16°C, 21°C and 25°C (48 individuals at each of the first three temperatures; 16 individuals for the 25°C experiment).

View larger version (16K): [in a new window]   Fig. 4. Distribution of behavioural categories throughout a lethal heat shock applied to Lucky Strike M. fortunata shrimps (20 individuals), at in situ pressure (17 MPa, exp. 6). Squares, total movement, i.e. C2+C3=20–C1; circles, moving more than body length, i.e. C3; triangles, loss of equilibrium, i.e. C4; solid bold line, temperature (°C). For an explanation of the behavioural categories, see Table 1.

View larger version (17K): [in a new window]   Fig. 5. Distribution of behavioural categories throughout a lethal heat shock applied to Menez Gwen M. fortunata shrimps (20 individuals), at in situ pressure (8.5 MPa, exp. 7). Squares, total movement, i.e. C2+C3=20–C1; circles, moving more than body length, i.e. C3; triangles, loss of equilibrium, i.e. C4; solid bold line: temperature (°C). For an explanation of the behavioural categories, see Table 1.

View larger version (15K): [in a new window]   Fig. 6. Data for loss of equilibrium (i.e. C4; see Table 1) for Mirocaris fortunata (open triangles, filled triangles, from Figs 4 and 5, respectively) are compared to those for Rimicaris exoculata (solid diamonds, broken line), another vent shrimp studied previously (Ravaux et al., 2003). The latter data are the result of experiments using 15 individuals, which are here multiplied by 1.33 (20/15) to allow comparison with experiments (20 individuals).