DIAPALIS 8

Type Oceanographic cruise
Set This cruise is part of the set DIAPALIS
Ship Alis
Ship owner IRD
Dates 09/06/2003 - 14/06/2003
Chief scientist(s) NEVEUX Jacques

OBSERVATOIRE OCEANOLOGIQUE DE BANYULS (OSU-OOB)

Laboratoire Arago

BP 44

66650 BANYULS-SUR-MER

+33 4 68 88 73 15

accueil@obs-banyuls.fr

https://www.obs-banyuls.fr/index.php/fr/
DOI 10.17600/3100080
Objective 1) Complementing observations on cyanobacteria made during previous cruises and in monthly monitoring done in the south-western lagoon and in the ocean beyond the Dumbea pass. 2) Determining and comparing the abundance of cyanobacteria from Trichodesmium, Synechococcus and Prochlorococcus genera between various ocean areas studied to the east (Loyalty island channel), the south-east (south of Isle of Pines), and the west of New Caledonia. Studying the related physical-chemical characteristics including iron. 3) Measuring the relative importance of surface primary production in the >10 µm size fraction containing the Trichodesmium. 4) Highlighting the presence of an upwelling in the ocean on the west coast slightly offshore from the reef, under the action of the south-easterly trade winds and specifying its impact on the phytoplankton communities' structure and the relative abundance of cyanobacteria. The chlorophyll biomasses are usually highest during the month of June in this region. 5) Characterizing the exchanges between lagoon and ocean at the Dumbea passage using ADCP measurements beyond the pass and physical-chemical and biological characteristics in the water on each side of the pass during two tidal cycles. 6) Taking marine optical measurements to assess diazotrophic cyanobacteria abundance from water color satellite images. Three set points were occupied for about 6 hours: 1) Loyalty islands channel (167 deg 00'E; 21 deg 50'S) 2) South-east of Grande Terre (south of the isle of Pines: 167 deg 30'E; 20 deg 37'S) 3) south-west of Noumea (166 deg 10'E; 22 deg 27'S). 20 short stations (30 mins to 1 h) 7 in the south-eastern lagoon, 4 in the south-western lagoon and 9 outside of the lagoon. This cruise fell under the IRD DIAPAZON (Cyano and Lodyc) and INSU PROOF (JGOFS-France) programs.

Data managed by SISMER

Bibliography

Publications

Dupouy Cécile, Whiteside Andra, Tan Jing, Wattelez Guillaume, Murakami Hiroshi, Andréoli Rémi, Lefèvre Jérôme, Röttgers Rüdiger, Singh Awnesh, Frouin Robert (2023). A Review of Ocean Color Algorithms to Detect Trichodesmium Oceanic Blooms and Quantify Chlorophyll Concentration in Shallow Coral Lagoons of South Pacific Archipelagos. Remote Sensing, 15(21), 5194 (25p.). Publisher's official version : https://doi.org/10.3390/rs15215194 , Open Access version : https://archimer.ifremer.fr/doc/00871/98267/


Dutheil Cyril, Aumont Olivier, Gorgues Thomas, Lorrain Anne, Bonnet Sophie, Rodier Martine, Dupouy Cecile, Shiozaki Takuhei, Menkes Christophe (2018). Modelling N2 fixation related to Trichodesmium sp.: driving processes and impacts on primary production in the tropical Pacific Ocean. Biogeosciences, 15(14), 4333-4352. Publisher's official version : https://doi.org/10.5194/bg-15-4333-2018 , Open Access version : https://archimer.ifremer.fr/doc/00419/53042/


Moutin Thierry, Wagener Thibaut, Caffin Mathieu, Fumenia Alain, Gimenez Audrey, Baklouti Melika, Bouruet-Aubertot Pascale, Pujo-Pay Mireille, Leblanc Karine, Lefevre Dominique, Nunige Sandra Helias, Leblond Nathalie, Grosso Olivier, de Verneil Alain (2018). Nutrient availability and the ultimate control of the biological carbon pump in the Western Tropical South Pacific Ocean. Biogeosciences, 15(9), 2961-2989. Publisher's official version : https://doi.org/10.5194/bg-15-2961-2018 , Open Access version : https://archimer.ifremer.fr/doc/00420/53113/


Barboza Tenorio Marcio Murilo, Dupouy Cecile, Rodier Martine, Neveux Jacques (2018). Trichodesmium and other planktonic cyanobacteria in New Caledonian waters (SW tropical Pacific) during an El Niño episode. Aquatic Microbial Ecology, 81(3), 219-241. Publisher's official version : https://doi.org/10.3354/ame01873 , Open Access version : https://archimer.ifremer.fr/doc/00439/55078/


Cravatte Sophie, Kestenare Elodie, Eldin Gerard, Ganachaud Alexandre, Lefevre Jerome, Marin Frederic, Menkes Christophe, Aucan Jerome (2015). Regional circulation around New Caledonia from two decades of observations. Journal Of Marine Systems, 148, 249-271. https://doi.org/10.1016/j.jmarsys.2015.03.004


Fuchs Rosalie, Pinazo Christel, Douillet R., Fraysse Marion, Grenz Christian, Mangin A., Dupouy C. (2013). Modelling ocean-lagoon interaction during upwelling processes in the South West of New Caledonia. Estuarine Coastal And Shelf Science, 135, 5-17. https://doi.org/10.1016/j.ecss.2013.03.009


Fuchs R., Dupouy C., Douillet Pascal, Caillaud Matthieu, Mangin A., Pinazo Christel (2012). Modelling the impact of a La Nina event on a South West Pacific Lagoon. Marine Pollution Bulletin, 64(8), 1596-1613. https://doi.org/10.1016/j.marpolbul.2012.05.016


Dupouy Cecile, Neveux Jacques, Ouillon Sylvain, Frouin Robert, Murakami Hiroshi, Hochard Sebastien, Dirberg Guillaume (2010). Inherent optical properties and satellite retrieval of chlorophyll concentration in the lagoon and open ocean waters of New Caledonia. Marine Pollution Bulletin, 61(7-12), 503-518. https://doi.org/10.1016/j.marpolbul.2010.06.039


Neveux Jacques, Tenório M. M. B., Jacquet Sylvain, Torréton J.-P., Douillet Pascal, Ouillon S., Dupouy C. (2009). Chlorophylls and Phycoerythrins as Markers of Environmental Forcings Including Cyclone Erica Effect (March 2003) on Phytoplankton in the Southwest Lagoon of New Caledonia and Oceanic Adjacent Area. International Journal of Oceanography, 2009(ID 232513), 1-19. https://doi.org/10.1155/2009/232513