FN Archimer Export Format
PT J
TI Trichodesmium and other planktonic cyanobacteria in New Caledonian waters (SW tropical Pacific) during an El Niño episode
BT 
AF BARBOZA TENORIO, Marcio Murilo
   DUPOUY, Cecile
   RODIER, Martine
   NEVEUX, Jacques
AS 1:1;2:2,5;3:3,6;4:4;
FF 1:;2:;3:;4:;
C1 Univ Fed Rio de Janeiro UFRJ, Inst Biol, Lab Plancton Marinho, Ave Brigadeiro Trompowsky S-N,CCS,BL A,SL 79, BR-20530310 Rio De Janeiro, RJ, Brazil.
   Univ Toulon & Var, Aix Marseille Univ, CNRS, Inst Rech Dev,Mediterranean Inst Oceanog,UM 110, Batiment Mediterranee,Campus Luminy, F-13288 Marseille, France.
   Univ Polynesie Francaise, Inst Rech Dev, Inst Louis Malarde, Ifremer,UMR Ecosyst Insulaires Oceaniens 241, F-98713 Papeete, French Polynesi, Fr Polynesia.
   CNRS UPMC, Observ Oceanol Banyuls, LOMIC UMR 7621, Ave Pierre Fabre, F-66650 Banyuls Sur Mer, France.
   Ctr IRD Noumea, BP A5, Noumea 98848, New Caledonia.
   Ctr IRD Tahiti, BP 529, F-98713 Papeete, Fr Polynesia.
C2 UNIV FED RIO DE JANEIRO UFRJ, BRAZIL
   UNIV TOULON, FRANCE
   UNIV POLYNESIE FRANCAISE, FRANCE
   CNRS, FRANCE
   IRD, FRANCE
   IRD, FRANCE
UM EIO
IF 2.788
TC 15
UR https://archimer.ifremer.fr/doc/00439/55078/90130.pdf
LA English
DT Article
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BO Alis
DE ;Trichodesmium;Filamentous cyanobacteria;Community structure;Microscopy;Picoplankton;Pigments;Loyalty Islands;Coral-reef lagoon;El Nino
AB Contributions of filamentous and picoplanktonic cyanobacteria to the phytoplankton community structure were examined in New Caledonian waters during the 2001-2003 El Niño period at 2 ocean stations (Loyalty Channel and Santal Bay) and 1 coral-reef lagoon station (Ouinne). Morphometric characteristics of diazotrophic filamentous cyanobacteria are given, as well as the seasonal and inter-annual variations of their surface areas and integrated abundances. Trichodesmium tenue and T. thiebautii were the dominant species followed by T. erythraeum, altogether accounting for more than 51-80% of the biomass of the free-living filamentous cyanobacteria. Katagnymene spp. accounted for a smaller percentage (<13.8% at ocean stations, <3.6% in the lagoon). Richelia intracellularis biomass was relatively small (<1% of total surface area and volume of Trichodesmium trichomes), with the highest concentration observed in summer (735 trichomes l-1). Colonies of unidentified cyanobacteria composed of spherical cells accounted on average for <1% of the Trichodesmium biomass, with maximum values exceeding 4000 cells l-1. Abundance of filamentous cyanobacteria varied according to environmental factors; summer 2001-2002 was characterized by low filamentous diazotroph abundance, and summer 2003, at the peak of the 2001-2003 El Niño, was particularly rich in filamentous cyanobacteria (with a maximum Trichodesmium spp. abundance of 4500 trichomes l-1 in the Loyalty Channel). A similar variability pattern was observed for large diatoms and dinoflagellates, and for all picoeukaryotic populations. Different biomass estimators are provided, including cell abundances, pigment concentrations including chlorophylls and phycoerythrin, and carbon content. 
PY 2018
SO Aquatic Microbial Ecology
SN 0948-3055
PU Inter-research
VL 81
IS 3
UT 000434115900003
BP 219
EP 241
DI 10.3354/ame01873
ID 55078
ER

EF