Dependence of light-saturated photosynthesis on temperature and community structure

被引:107
作者
Bouman, H [1 ]
Platt, T
Sathyendranath, S
Stuart, V
机构
[1] Dalhousie Univ, Dept Biol, Halifax, NS B3H 4J1, Canada
[2] Bedford Inst Oceanog, Dartmouth, NS B2Y 4A2, Canada
[3] Dalhousie Univ, Dept Oceanog, Halifax, NS B3H 4J1, Canada
基金
加拿大自然科学与工程研究理事会;
关键词
temperature; community structure; light-saturated photosynthesis; marine phytoplankton; Nova Scotian Shelf; Arabian Sea;
D O I
10.1016/j.dsr.2005.01.008
中图分类号
P7 [海洋学];
学科分类号
0707 ;
摘要
Using data collected in the Arabian Sea and on the Nova Scotian Shelf we examined the relationships between temperature, phytoplankton taxonomic composition (indexed by pigment composition) and the size structure (indexed by chlorophyll-specific absorption coefficient at 676 nm), Chlorophyll-a biomass and the light-saturated photosynthesis parameter p(m)(B). Our results show that changes in phytoplankton community structure for the Scotian Shelf closely follow changes in temperature. In the Arabian Sea the relationship between phytoplankton community structure and temperature was less striking and fluctuations in phytoplankton pigment composition were strongly related to Chlorophyll-a biomass. The light-saturated photosynthesis parameter p(m)(B) was correlated with temperature for the Scotian Shelf. When we compared data collected on the Scotian Shelf with the temperature-dependent function of Eppley (1972. Fishery Bulletin 70, 1063-1085), the model fitted the data remarkably well. For the Arabian Sea data, however, only a weak temperature dependence in p(m)(B) was observed, which may be a result of a strong negative correlation between ambient nitrate concentration and temperature. Our results also show that for both the Scotian Shelf and the Arabian Sea, diatom-dominated waters had similarly low p(m)(B) values even though the temperatures of the two systems were markedly different. The absorptive characteristics of phytoplankton on the Scotian Shelf were well correlated with p(m)(B), thus providing another potential predictor of p(m)(B) that may, in the future, be routinely accessible by remote sensing. The contrasting relationships among community structure, temperature, and primary production observed in the two study regions suggest that primary production algorithms incorporating such information could be developed and applied on a domain-specific basis. These algorithms should be centred on knowledge of the relationships between physical forcing, community structure and phytoplankton photophysiology. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1284 / 1299
页数:16
相关论文
共 54 条
[1]   Spatial variations in the chlorophyll-specific absorption coefficients of phytoplankton and photosynthetically active pigments in the equatorial Pacific [J].
Allali, K ;
Bricaud, A ;
Claustre, H .
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, 1997, 102 (C6) :12413-12423
[2]   Oceanic primary production .1. Adaptation of a spectral light-photosynthesis model in view of application to satellite chlorophyll observations [J].
Antoine, D ;
Morel, A .
GLOBAL BIOGEOCHEMICAL CYCLES, 1996, 10 (01) :43-55
[3]   THE REMOTE-SENSING OF OCEAN PRIMARY PRODUCTIVITY - USE OF A NEW DATA COMPILATION TO TEST SATELLITE ALGORITHMS [J].
BALCH, W ;
EVANS, R ;
BROWN, J ;
FELDMAN, G ;
MCCLAIN, C ;
ESAIAS, W .
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, 1992, 97 (C2) :2279-2293
[4]   Geographical differences in seasonality of CZCS-derived phytoplankton pigment in the Arabian Sea for 1978-1986 [J].
Banse, K ;
English, DC .
DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY, 2000, 47 (7-8) :1623-1677
[5]   Primary productivity and its regulation in the Arabian Sea during 1995 [J].
Barber, RT ;
Marra, J ;
Bidigare, RC ;
Codispoti, LA ;
Halpern, D ;
Johnson, Z ;
Latasa, M ;
Goericke, R ;
Smith, SL .
DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY, 2001, 48 (6-7) :1127-1172
[6]   Photosynthetic rates derived from satellite-based chlorophyll concentration [J].
Behrenfeld, MJ ;
Falkowski, PG .
LIMNOLOGY AND OCEANOGRAPHY, 1997, 42 (01) :1-20
[7]   Photoacclimation and nutrient-based model of light-saturated photosynthesis for quantifying oceanic primary production [J].
Behrenfeld, MJ ;
Marañón, E ;
Siegel, DA ;
Hooker, SB .
MARINE ECOLOGY PROGRESS SERIES, 2002, 228 :103-117
[8]   Temperature as indicator of optical properties and community structure of marine phytoplankton: implications for remote sensing [J].
Bouman, HA ;
Platt, T ;
Sathyendranath, S ;
Li, WKW ;
Stuart, V ;
Fuentes-Yaco, C ;
Maass, H ;
Horne, EPW ;
Ulloa, O ;
Lutz, V ;
Kyewalyanga, M .
MARINE ECOLOGY PROGRESS SERIES, 2003, 258 :19-30
[9]   Bio-optical properties of the subtropical North Atlantic. I. Vertical variability [J].
Bouman, HA ;
Platt, T ;
Kraay, GW ;
Sathyendranath, S ;
Irwin, BD .
MARINE ECOLOGY PROGRESS SERIES, 2000, 200 :3-18
[10]  
BOUMAN HA, 2003, THESIS DALHOUSIE U H