A time series of benthic flux measurements from Monterey Bay, CA

被引:126
作者
Berelson, W [1 ]
McManus, J
Coale, K
Johnson, K
Burdige, D
Kilgore, T
Colodner, D
Chavez, F
Kudela, R
Boucher, J
机构
[1] Univ So Calif, Dept Earth Sci, Los Angeles, CA 90089 USA
[2] Oregon State Univ, Coll Ocean & Atmospher Sci, Corvallis, OR 97331 USA
[3] Moss Landing Marine Labs, Moss Landing, CA 95039 USA
[4] Monterey Bay Aquarium Res Inst, Moss Landing, CA 95039 USA
[5] Old Dominion Univ, Dept Earth & Ocean Sci, Norfolk, VA 23529 USA
[6] Biosphere, Oracle, AZ 85623 USA
[7] Univ Calif Santa Cruz, Dept Ocean Sci, Santa Cruz, CA 95064 USA
[8] Maine Maritime Inst, Ocean Studies Program, Castine, ME 04420 USA
关键词
benthic recycling; Monterey Bay; nutrients; carbon;
D O I
10.1016/S0278-4343(03)00009-8
中图分类号
P7 [海洋学];
学科分类号
0707 ;
摘要
In situ incubation chamber measurements of benthic nutrient recycling rates were made on the Monterey Bay shelf at 100 m during various years and seasons. Variability in nutrient (Si, PO42+, NH3, NO3-) and trace metal (Mn, Fe (11), Cu) fluxes correlate with variability in the amount of organic carbon oxidized on the sea floor. Patterns of primary productivity show a mid-year maxima, consistent with the timing of increased rates of benthic C-org and opal recycling. High rates Of C-org rain to the shelf promote nitrate consumption at a rate that equals or exceeds ammonia efflux. Low rates of C-org rain promote greater efflux of DIN; thus these margin sediments provide a negative feedback to local productivity cycles. The efflux of iron (11) from shelf sediments is sufficient to support >100% of new production, yet Fe flux is positively correlated with C-org recycling which lags the maximum in new production. On account of this time lag,. diagenetically recycled Fe is not likely a micro-nutrient trigger of new production, but could serve as a positive feedback. Bio-irrigation rates are seasonally variable by 30% but maximal during the maximum productivity months. (C) 2003 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:457 / 481
页数:25
相关论文
共 76 条
  • [1] Aller R.C., 1991, OCEANOGRAPHY, V4, P27, DOI [10.5670/oceanog.1991.18, DOI 10.5670/OCEANOG.1991.18]
  • [2] EARLY CHEMICAL DIAGENESIS, SEDIMENT-WATER SOLUTE EXCHANGE, AND STORAGE OF REACTIVE ORGANIC-MATTER NEAR THE MOUTH OF THE CHANGJIANG, EAST CHINA SEA
    ALLER, RC
    MACKIN, JE
    ULLMAN, WJ
    WANG, CH
    TSAI, SM
    JIN, JC
    SUI, YN
    HONG, JZ
    [J]. CONTINENTAL SHELF RESEARCH, 1985, 4 (1-2) : 227 - 251
  • [3] Remineralization rates, recycling, and storage of carbon in Amazon shelf sediments
    Aller, RC
    Blair, NE
    Xia, Q
    Rude, PD
    [J]. CONTINENTAL SHELF RESEARCH, 1996, 16 (5-6) : 753 - 786
  • [4] BENTHIC OXYGEN FLUXES ON THE WASHINGTON SHELF AND SLOPE - A COMPARISON OF INSITU MICROELECTRODE AND CHAMBER FLUX MEASUREMENTS
    ARCHER, D
    DEVOL, A
    [J]. LIMNOLOGY AND OCEANOGRAPHY, 1992, 37 (03) : 614 - 629
  • [5] BARNETT PRO, 1984, OCEANOL ACTA, V7, P399
  • [6] Global carbon sinks and their variability inferred from atmospheric O2 and δ13C
    Battle, M
    Bender, ML
    Tans, PP
    White, JWC
    Ellis, JT
    Conway, T
    Francey, RJ
    [J]. SCIENCE, 2000, 287 (5462) : 2467 - 2470
  • [7] ORGANIC-CARBON OXIDATION AND BENTHIC NITROGEN AND SILICA DYNAMICS IN SAN-CLEMENTE BASIN, A CONTINENTAL BORDERLAND SITE
    BENDER, M
    JAHNKE, R
    WEISS, R
    MARTIN, W
    HEGGIE, DT
    ORCHARDO, J
    SOWERS, T
    [J]. GEOCHIMICA ET COSMOCHIMICA ACTA, 1989, 53 (03) : 685 - 697
  • [8] Berelson W.M., 1987, Radon, Radium and Other Radioactivity in Groundwater, P271
  • [9] Biogenic matter diagenesis on the sea floor: A comparison between two continental margin transects
    Berelson, WM
    McManus, J
    Coale, KH
    Johnson, KS
    Kilgore, T
    Burdige, D
    Pilskaln, C
    [J]. JOURNAL OF MARINE RESEARCH, 1996, 54 (04) : 731 - 762
  • [10] Modelling bio-irrigation rates in the sediments of Port Phillip Bay
    Berelson, WM
    Townsend, T
    Heggie, D
    Ford, P
    Longmore, A
    Skyring, G
    Kilgore, T
    Nicholson, G
    [J]. MARINE AND FRESHWATER RESEARCH, 1999, 50 (06) : 573 - 579