| Type |
Article |
| Date |
1998-02 |
| Language |
English |
| Author(s) |
Ganteaume A, Gobert J, Malestroit Pascale, Menager V, Francour P, Boudouresque Cf |
| Affiliation(s) |
Fac Sci Luminy, Lab Biol Marine & Ecol Benthos, CNRS, EP 75, F-13288 Marseille 09, France. |
| Source |
Journal Of The Marine Biological Association Of The United Kingdom (0025-3154) (Cambridge Univ Press), 1998-02 , Vol. 78 , N. 1 , P. 239-248 |
| DOI |
10.1017/S0025315400040066 |
| WOS© Times Cited |
7 |
| Abstract |
In vitro short time experiments (a few weeks) show that daily ingestion by Paracentrotus lividus (Echinodermata: Echinoidea) is weak (0-81 mg DW d(-1) ind(-1)) for Caulerpa taxifolia (Chlorophyta), compared to the data recorded with an almost totally avoided brown alga, Cystoseira compressa (24-137 mg DW d(-1) ind(-1)) and with a preferred brown alga, Halopteris scoparin (79-397 mg DW d(-1) ind(-1)). There is no significant difference between spring (when the toxic metabolite content is at its minimum) and summer-autumn (when it is at its maximum). In contrast, the absorption rate of the sea urchin fed on Caulerpa taxifolia is significantly weaker in spring than in summer-autumn. Overall, the daily absorbed weight is negative in spring with C. taxifolia (compared with 18 mg DW d(-1) ind(-1) with Cystoseira compressa and 25 mg DW d(-1) ind(-1) with H. scoparia). It has also been demonstrated that P. lividus becomes accustomed to Caulerpa taxifolia, at least for short time experiments: the echinoid consumes greater quantities of this alga especially if it is fresh when it has already consumed it previously. |
| Full Text |
| File |
Pages |
Size |
Access |
| 30589.pdf |
10 |
691 KB |
Open access |
|
