Rapport de Campagne - Station Biologique de Roscoff
Rapport de Campagne - Station Biologique de Roscoff
Rapport de Campagne - Station Biologique de Roscoff
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
COMPTE RENDU DE CAMPAGNE A LA MER SUR UN NAVIRE Ifremer<br />
Date : 14/05/1999<br />
Observateur : DIXON David<br />
Pilotes : DUBOIS, LUBIN<br />
HOPE99<br />
Plongée : 1383<br />
<strong>Station</strong> : 13 N lat moy : N 12 45 long moy : W 103 59<br />
Réferences <strong>de</strong> positionnement :<br />
Xo : 610000 Yo : 1410000 fuseau : 13<br />
Sites explorés :<br />
∑ Genesis<br />
∑ Pogosud<br />
Objectifs <strong>de</strong> la plongée :<br />
GENESIS: N12 45.160, W 103 59.200 Position PLASMA particle sampler close to Riftia<br />
clump, recover thermal siphon, take water samples with three different types of water bottles,<br />
measure the ambient water temperature using the Nautile sensor, vi<strong>de</strong>o the coloured Riftias along<br />
the trench, examine the mini TRAC for Alvinella growth, sample Riftia, Alvinella community,<br />
slurp fish and ventoctopus, recover basalt blocks bearing serpulids and Bathypecten, <strong>de</strong>ploy<br />
nasse a bulot and recover small and large nasse containing crabs.<br />
Résumé <strong>de</strong>s travaux : Ont été effectués durant la plongee :<br />
* 9 prélèvements biologiques,<br />
* 1 prélèvement <strong>de</strong> flui<strong>de</strong>s,<br />
* 1 mesure ponctuelle,<br />
15 images ont été numérisées,<br />
2 mouillages ont été relevés.<br />
<strong>Rapport</strong> <strong>de</strong> plongée :<br />
Heure Localité X Y Prof N° Commentaires<br />
(m) Photo<br />
16:31:00 13 N 5345 6547 2603 On the bottom<br />
18:34:43 13 N 5249 6524 2600 Located ascenseur<br />
18:41:54 13 N 5114 6530 2620 Located PLASMA<br />
18:51:34 13 N 5112 6513 2618 Release PLASMA from ballast weight<br />
18:53:47 13 N 5094 6527 2619 PLASMA transported to vent site<br />
18:59:51 Genesis 5022 6738 2630 GENESIS vent site reached<br />
19:04:51 Genesis 4956 6513 2625 001 PLASMA positioned next to chimney<br />
19:09:21 Genesis 4983 6796 2624 Place nasse a bulot next to PLASMA<br />
19:23:23 Genesis 5186 6530 2600 Retrieving ascenseur to GENESIS site<br />
19:46:12 Genesis 4983 6502 2630 Ascenseur reaches GENESIS<br />
19:51:49 Genesis 4995 6517 2629 Ascenseur placed at GENESIS site<br />
19:53:00 Genesis 5011 6679 2628 Nautile temperature measurement<br />
19:54:00 Genesis 5020 6750 2628 3 types of water sampler <strong>de</strong>ployed<br />
20:07:00 Genesis 4998 6542 2628 Finished water sampling<br />
20:13:00 Genesis 4976 6535 2631 002 Serpulids near Riftia chimney<br />
20:16:00 Genesis Recovery of thermal siphon<br />
20:46:00 Genesis 5029 6770 2632 003 Riftia vi<strong>de</strong>o along trench to see growth<br />
20:49:00 Genesis 5006 6792 2633 004 'blue' Riftia showing tubes<br />
20:52:00 Genesis 5004 6783 2632 005 More 'blue' Riftia showing stain<br />
HOPE 99 Page 152 1383 / 55 / 27
Change language