Open Access. Powered by Scholars. Published by Universities.®
- Discipline
- Institution
- Publication Year
- Publication
-
- Journal of Marine Research (2451)
- Marine Biology (24)
- Fisheries (16)
- Theses (Unassigned) (5)
- Master's Theses (4)
-
- Biological Sciences (3)
- Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions) (3)
- Graduate Theses, Dissertations, and Problem Reports (ETD) (2)
- Biological Sciences Faculty Publications (1)
- Honors Papers (1)
- Journal of Marine Science and Technology–Taiwan (1)
- Master's Theses and Capstones (1)
- OES Faculty Publications (1)
- Open Access Master's Theses (1)
- School of Biological and Marine Sciences Theses (1)
- Theses and Dissertations (1)
- Publication Type
- File Type
Articles 1051 - 1080 of 2516
Full-Text Articles in Entire DC Network
Meridional Variations Of The Springtime Phytoplankton Community In The Sargasso Sea, D. A. Siegel, R. Iturriaga, R. R. Bidigare, R. C. Smith, H. Pak, T. D. Dickey, J. Marra, K. S. Baker
Meridional Variations Of The Springtime Phytoplankton Community In The Sargasso Sea, D. A. Siegel, R. Iturriaga, R. R. Bidigare, R. C. Smith, H. Pak, T. D. Dickey, J. Marra, K. S. Baker
Journal of Marine Research
Meridional distributions of particle, pigment, optical, chemical and physical in situ oceanographic properties, as well as satellite-sensed sea-surface temperature and color imagery, are used to investigate phytoplankton community distributions and their relation to the near-surface water masses of the S bnargasso Sea. 0-H3059 Measurements were made during April of 1985 along a 1200 km transect on 70W (from 24N to 35N). The seasonal evolution of subtropical Mode water (18° water) is shown to be the primary factor controlling the spatial distribution and evolution of the phytoplankton community in the northern Sargasso Sea (31 to 35N). The springtime near-surface restratification of …
Dissipative Dynamics Of Western Boundary Currents, Paola Cessi, R. Vance Condie, W. R. Young
Dissipative Dynamics Of Western Boundary Currents, Paola Cessi, R. Vance Condie, W. R. Young
Journal of Marine Research
We investigate the steady barotropic circulation patterns driven by inflow-outflow boundary conditions on a rectangular β-plane domain. An inertial jet enters the domain in the southwest corner and a broad eastward outflow is prescribed at the eastern boundary. On the western wall there is no mass flux and no slip.With weak viscosity, ν the western boundary jet ?overshoots? northward, beyond the latitude band of the eastern outflow. As the viscosity is reduced the length of this overshoot increases as ν−2/3, before the jet gradually peels away from the western wall, plunges southward and eventually turns eastward. Away …
Covariability Of Dissolved Oxygen With Physical Processes In The Summertime Chesapeake Bay, Lawrence P. Sanford, Kevin G. Sellner, Denise L. Breitburg
Covariability Of Dissolved Oxygen With Physical Processes In The Summertime Chesapeake Bay, Lawrence P. Sanford, Kevin G. Sellner, Denise L. Breitburg
Journal of Marine Research
Long, rapidly sampled time series measurements of dissolved oxygen, temperature, salinity, currents, winds, tides, and insolation were collected during the summer of 1987 across the mesohaline Chesapeake Bay. Analyses of the data show that short term variability of dissolved oxygen was both large and spatially heterogeneous. Time scales of variability ranged from the longest period fluctuations resolved (several days) to the sampling interval (several minutes). The largest variability was associated with large amplitude, wind and tide forced lateral internal oscillations of the pycnocline in the mainstem of the Bay. These resulted in advection of saline, hypoxic water from below the …
Inversions Of Observations Near The Azores Front, Grant R. Bigg
Inversions Of Observations Near The Azores Front, Grant R. Bigg
Journal of Marine Research
CTD data from Discovery Cruise 138 of late June, 1983 in the Madeira Abyssal Plain show a strong, but isolated, Mediterranean Water (MW) signal around 35N, 25W. This water mass gives rise to an anticyclonic eddy at its southward tip and, through double diffusive processes, to modification of the density field a few hundred meters below. Current estimates have been calculated from the cruise data using the Bernoulli inverse technique. Extensions of this inverse method, which take into account the depth dependence of dynamically informative density and potential vorticity functions, are developed to investigate the flow field and the consistency …
On The Generation And Propagation Of Rossby Waves In An Ocean With A Zonally Shoaling Mixed Layer, M. S. Darby, A. J. Willmott
On The Generation And Propagation Of Rossby Waves In An Ocean With A Zonally Shoaling Mixed Layer, M. S. Darby, A. J. Willmott
Journal of Marine Research
This paper presents the theory for freely propagating and forced Rossby waves in a continuously stratified ocean where the bouyancy frequency, N, varies with longitude and depth. In this study zonal variations in N occur because the climatological mixed layer depth, h, varies with longitude.With the assumption that changes in h occur on a length scale which is large compared to a horizontal wavelength the free modes on a β-plane are examined. It is found that realistic mixed layer depth changes can cause amplitude modulations, the largest amplitudes occurring where the mixed layer is shallowest. The requirement …
Recirculation And Separation Of Boundary Currents, Paola Cessi
Recirculation And Separation Of Boundary Currents, Paola Cessi
Journal of Marine Research
An inertial multi-layer model of the recirculation gyres surrounding a separated boundary current is presented. The boundary current is defined to be separated when the upper layer thickness vanishes. The strong eastward flow found at the outcrop causes the circulation to extend to the bottom through baroclinic instability. In order to decrease the vertical shear responsible for the instability, the deep flow must also have maximum eastward velocity at the outcrop latitude. Thus the deep flow to the north of the outcrop (where no upper fluid is present) must move so as to keep velocity continuous. The eastward flowing deep …
Double-Diffusive Convection With Imposed Vertical Mass Flux, R. Krishnamurti, Y. Zhu
Double-Diffusive Convection With Imposed Vertical Mass Flux, R. Krishnamurti, Y. Zhu
Journal of Marine Research
Vertical advection and double-diffusive convection are both processes affecting the stratification of the oceans. The effect of vertical advection on double-diffusive convection is investigated by considering the situation in which a horizontal layer of fluid has imposed upon it a destabilizing vertical temperature gradient, a stabilizing vertical salinity gradient and a uniform vertical mass flux. The effect of the imposed vertical mass flux is to remove the stabilizing salt gradient, but not the destabilizing temperature gradient over most of the depth of the layer. This arises from the fact that heat diffuses much more quickly than does salt. The Peelet …
Shell Growth Rates Of Pteropod And Heteropod Molluscs And Aragonite Production In The Open Ocean: Implications For The Marine Carbonate System, Victoria J. Fabry
Shell Growth Rates Of Pteropod And Heteropod Molluscs And Aragonite Production In The Open Ocean: Implications For The Marine Carbonate System, Victoria J. Fabry
Journal of Marine Research
Shell calcification rates of four species of euthecosomatous pteropods and two species of shelled heteropods were measured in short-term 45Ca uptake experiments. In subtropical, temperate, and subarctic waters of the North Pacific Ocean and Atlantic Ocean, animals were hand-collected by Scuba divers, captured with the use of a submersible and caught in plankton nets. Shell growth rates of pteropods ranged from 1.1 to 7.8 μg Ca deposited (mg Ca shell)−1 h−1. Heteropod growth rates ranged from 4.6 to 4.9 μg Ca deposited (mg Ca shell)−1 h−1. Aragonite production of shelled pteropods …
Simulating The Time-Variable Coastal Upwelling During Code 2, Dake Chen, Dong-Ping Wang
Simulating The Time-Variable Coastal Upwelling During Code 2, Dake Chen, Dong-Ping Wang
Journal of Marine Research
The time-variable coastal upwelling during CODE 2 is simulated using a mixing-advection coupled model. The agreement between model results and observations is generally good. During periods of strong equatorward wind stress, shelf water is cold and weakly stratified, and a front moves offshore; during periods of wind relaxation, surface temperature rises markedly, but the subsurface front usually does not go back toward the coast. At the onset of each wind event, a quick cooling of the surface layer is first caused by wind mixing followed closely by offshore advection of upwelled cold water. Due to the combined effect of mixing …
The Thermocline As An "Internal Boundary Layer", Rick Salmon
The Thermocline As An "Internal Boundary Layer", Rick Salmon
Journal of Marine Research
In this paper, we analyze one-, two- and three-dimensional numerical solutions of a simple, inertia-less ocean circulation model. The solutions, which all approach a steady state, demonstrate that, in the limit of vanishing thermal diffusivity κ, a front of thickness κ1/2, identifiable with the thermocline, spontaneously appears at a location anticipated by simple arguments that treat the front as an "internal boundary layer." The temperature and velocity are generally discontinuous across the front, but the velocity component normal to the front is zero. In the asymptotic limit of vanishing diffusivity, the temperature has no vertical variation within …
Interaction Between Internal Tides And Energetic Fluxes Across The Atmosphere-Ocean Interface Over A Continental Shelf Break, R. Mazé, J. Y. Le Tareau
Interaction Between Internal Tides And Energetic Fluxes Across The Atmosphere-Ocean Interface Over A Continental Shelf Break, R. Mazé, J. Y. Le Tareau
Journal of Marine Research
Satellite infra-red images taken from April-May to September-October often show persistent ribbons of cool water along the European continental slope, from West Ireland to South-West Brittany (Pingree and Mardell, 1981; Le Tareau et al., 1983; Mazé, 1983; Mazé et al., 1986). The cooling increases northwestward and follows almost exactly the top of the shelf break. This effect appears to be connected with the increase in intensity of the baroclinic internal tide field. A global model is constructed to simulate the cooling process above the edge by interaction between internal tide waves and mixing. First, a three layer model …
Nitrogen Recycling In Coastal Waters Of Southeastern U.S. During Summer 1986, R. B. Hanson, C. Y. Robertson, J. A. Yoder, P. G. Verity, S. S. Bishop
Nitrogen Recycling In Coastal Waters Of Southeastern U.S. During Summer 1986, R. B. Hanson, C. Y. Robertson, J. A. Yoder, P. G. Verity, S. S. Bishop
Journal of Marine Research
Summer-time pelagic nitrogen recycling using an 15NH4+ tracer technique was studied for important biological pathways, sinks, and residence times in the microbial food web of coastal Georgia, U.S.A. Results showed that estimated rates of NH4+ regeneration by a variety of microheterotrophs and microzooplankton balanced rates of NH4+ assimilation by the microbial community, i.e., phytoplankton, bacteria and other microheterotrophs, in surface waters. In bottom water below the 1% light level, NH4+ regeneration exceeded community NH4+ assimilation by 3.5 times. However, over a period of 2 weeks, high NH4+ …
Retroflection And Leakage In The North Brazil Current: Critical Point Analysis, G. T. Csanady
Retroflection And Leakage In The North Brazil Current: Critical Point Analysis, G. T. Csanady
Journal of Marine Research
In an attempt to throw light on the complex flow pattern of the North Brazil Current near its point of separation from the coast, the flow in the neighborhood of boundary- and internal stagnation points ("critical points") has been analyzed. The underlying hypothesis is that fluid masses of widely different potential vorticity come in contact near such points. In a one-and-a-half layer idealization of inertial, frictionless flow the key control parameter is the ratio of potential vorticities of the converging fluids. This determines the angle of flow after separation, and, for given buoyancy and depth scale, the volume of each …
Phytoplankton Growth At The Shelf-Break Front In The Middle Atlantic Bight, John Marra, R. W. Houghton, Christopher Garside
Phytoplankton Growth At The Shelf-Break Front In The Middle Atlantic Bight, John Marra, R. W. Houghton, Christopher Garside
Journal of Marine Research
The summertime front near the shelf break in the Middle Atlantic Bight is both thermohaline and baroclinic. Near the surface, large gradients of temperature (T) and salinity (S) exist with little cross-frontal variation in density. At depths >50 m, an isopycnal boundary separates Slope Water from colder, fresher shelf water. Higher concentrations of chlorophyll are found in the upper part of the front, between water types of shelf and Slope Water origin. Calculations show also that the front is a region of enhanced phytoplankton growth. It is proposed that the relative fertility of the front is …
Nitrogen Flux In The Northern Bering Sea, Dennis Arthur Hansell
Nitrogen Flux In The Northern Bering Sea, Dennis Arthur Hansell
Fisheries
Much of the primary production occurring over the Bering Sea continental shelf is thought to be associated with both ice edge and spring blooms. The nature of summer production over the shelf is now being addressed. A general model is presented for summer phytoplankton production along the Bering Sea shelf break front and subsequent transport of phytodetritus into the northern Bering Sea. Production associated with the shelf break front is estimated to be 200 g $\cdot$ C $\cdot$ m$\sp{-2}$ over a 120-day growing season and is supported by nutrients from the Bering Slope Current. A portion of the biomass accumulating …
Streamfunctions For The Lateral Velocity Vector In A Compressible Ocean, Trevor J. Mcdougall
Streamfunctions For The Lateral Velocity Vector In A Compressible Ocean, Trevor J. Mcdougall
Journal of Marine Research
Streamfunctions are known in (i) geopotential surfaces, (ii) isobaric surfaces, (iii) surfaces of constant in situ density, ρ, and (iv) surfaces of constant steric anomaly, δ. lt is desirable to map a streamfunction in a surface in which most of the mixing and movement of water-masses occurs so that the streamlines obtained in two dimensions will approximate the flow paths of the full three-dimensional flow field. These surfaces are believed to be neutral surfaces, but while a streamfunction exists in a neutral surface, we do not as yet have a closed expression for it in terms of a …
Variability Of The Coastal Current And Nutrient Pathways In The Eastern Gulf Of Maine, David A. Brooks, David W. Townsend
Variability Of The Coastal Current And Nutrient Pathways In The Eastern Gulf Of Maine, David A. Brooks, David W. Townsend
Journal of Marine Research
The eastern Maine coastal current flows southwestward, carrying cold and nutrient-rich waters along the coast from the tidally stirred eastern gulf toward the central and western gulf, where in summer the waters are warmer and more stratified. The current typically turns offshore before reaching Penobscot Bay, near the central coast, at a location determined largely by the distribution of dense slope water in Jordan Basin. The slope water, which enters the gulf as a deep inflow from the Atlantic Ocean, thus plays a major role in determining the intensity, direction and timing of the delivery of nutrients to the interior …
Spectral Transform Simulations Of Finite Amplitude Double-Diffusive Instabilities In Two Dimensions, D. W. A. Whitfield, G. Holloway, J. Y. Holyer
Spectral Transform Simulations Of Finite Amplitude Double-Diffusive Instabilities In Two Dimensions, D. W. A. Whitfield, G. Holloway, J. Y. Holyer
Journal of Marine Research
Simulations of double-diffusion with a two-dimensional, vertical plane spectral transform model reveal details of finite amplitude behavior in salt finger, interleaving and diffusive instabilities. Within the range of fluid parameters studied (3 < σ < 10, .1 < r < .5), infinite, fastest-growing fingers are unstable to Holyer's (1984) nonoscillatory instability and are completely disrupted by it. Finite fingers localized on density steps are also disrupted. Initialized density steps are eroded (the gradients reduced). Fluxes and other diagnostic quantities were determined for salt finger fields at statistical stationarity. These fields contain transitory, irregular finger structures. Fluxes decline steeply as Rfp increases. A single point of comparison of buoyancy flux with ocean measurement yielded good agreement. The dependence of flux ratio on the stability parameter is similar to the linear theory prediction for fastest-growing, infinite fingers and does not increase as Rfp approaches 1, in contrast to laboratory measurements. Holyer's (1984) Floquet theory is extended to the case of nonzero, density compensating, …
Rates Of Vertical Mixing, Gas Exchange And New Production: Estimates From Seasonal Gas Cycles In The Upper Ocean Near Bermuda, William S. Spitzer, William J. Jenkins
Rates Of Vertical Mixing, Gas Exchange And New Production: Estimates From Seasonal Gas Cycles In The Upper Ocean Near Bermuda, William S. Spitzer, William J. Jenkins
Journal of Marine Research
Argon measurements, obtained from one year of monthly detailed vertical profiles near Bermuda (32N 64W), show a maximum in argon supersaturation of about 4% in the seasonal thermocline in late summer. Since the argon supersaturation is 3–4 times smaller than that of oxygen, most of the oxygen supersaturation is not of physical origin and hence must result from biological production. In the winter mixed layer, air injection produces argon supersaturation in spite of high gas exchange rates. During spring and summer, radiative heating, air injection, and an upward argon flux create an even larger supersaturation in the mixed layer. In …
Critical Control Of Zonal Jets By Bottom Topography, Larry J. Pratt
Critical Control Of Zonal Jets By Bottom Topography, Larry J. Pratt
Journal of Marine Research
The nonlinear influence of isolated topography on an equivalent barotropic, quasigeostrophic jet is considered. The flow depends on several dimensional parameters including the mass flux Q, the mean layer thickness H, the planetary potential vorticity gradient β the inertial boundary layer thickness (u0/β)½ and a parameter a – c measuring the north-south potential vorticity difference across the jet. Eastward jets can achieve one of two steady forms, the first supercritical and the second subcritical with respect to upstream propagation of a long potential vorticity wave. An isolated topographic feature such as a ridge …
Resonance Of Internal Waves In Fjords: A Finite-Difference Model, Benoit Cushman-Roisin, Vigdis Tverberg, Edgar G. Pavia
Resonance Of Internal Waves In Fjords: A Finite-Difference Model, Benoit Cushman-Roisin, Vigdis Tverberg, Edgar G. Pavia
Journal of Marine Research
After the time periodicity is removed from the problem, the spatial distribution of internal waves in a stratified fluid is governed by a hyperbolic equation. With boundary conditions specified all along the perimeter of the domain, information is transmitted in both directions (forward and backward) along every characteristic, and, unlike the typical temporal hyperbolic equation, the internal-wave equation is not amenable to a simple forward integration. The problem is tackled here with a finite-difference, relaxation technique by constructing a time-dependent, dissipative problem, the final steady state of which yields the solution of the original problem. Attempts at solving the problem …
O2 And Co2 Balances Approach For Estimating Biological Production In The Mixed Layer Of The Tropical Atlantic Ocean (Guinea Dome Area), C. Oudot
Journal of Marine Research
The rates at which concentrations of oxygen and carbon dioxide change under the influence of the exchange with the atmosphere and biological production are derived from in situ measurements of O2 and CO2 in the mixed layer over a 10-day period in the Guinea Dome area. The rates of O2 production (10.3 mmol m–2 d–1) and CO2 consumption (13.0 mmol m–2 d–1) by photosynthetic activity exceed the evasion of O2 and CO2 into the atmosphere (respectively 2.4 and 1.2 mmol m–2 d–1). The net apparent …
Red Sea Budgets Of Salinity, Nutrients And Carbon Calculated In The Strait Of Bab-Ei-Mandab During The Summer And Winter Seasons, E. Souvermezoglou, N. Metzl, A. Poisson
Red Sea Budgets Of Salinity, Nutrients And Carbon Calculated In The Strait Of Bab-Ei-Mandab During The Summer And Winter Seasons, E. Souvermezoglou, N. Metzl, A. Poisson
Journal of Marine Research
Annual budgets of salinity, total inorganic carbon, total alkalinity, nitrates, phosphates and silicates are estimated through the Strait of Bab-el-Mandab. Two different methods that decouple the summer and winter periods are used. A direct method uses the concentrations of these parameters, the velocity of currents, and the area of a cross section in the strait. The calculations for the fluxes and budgets during the summer period were based on data collected during two cruises made in July and September 1982 (MEROU 1 and 2). An indirect method, based upon matrix inversion and the assumption of a steady-state balance of several …
Open-Incubation, Diffusion Methods For Measuring Solute Reaction Rates In Sediments, Robert C. Aller, James E. Mackin
Open-Incubation, Diffusion Methods For Measuring Solute Reaction Rates In Sediments, Robert C. Aller, James E. Mackin
Journal of Marine Research
Sedimentary solute distributions and fluxes are determined in part by the kinetics of production/consumption reactions in a deposit. It is possible to estimate rates and investigate kinetic relations in undisturbed or manipulated sediments by documenting build-up or depletion patterns of solutes allowed to diffuse either between relatively thin sections of sediment and a well-stirred water reservoir (plug incubation); or through a large section of sediment without an overlying reservoir (whole-core incubation). The time-dependent concentrations in the sediment in both cases depend on reaction rates, kinetics, diffusion coefficients, and geometric scaling of the sediment and contacting reservoir. Major advantages of the …
The Influence Of Gulf Stream Warm Core Rings On Recruitment Of Fish In The Northwest Atlantic, Ransom A. Myers, Ken Drinkwater
The Influence Of Gulf Stream Warm Core Rings On Recruitment Of Fish In The Northwest Atlantic, Ransom A. Myers, Ken Drinkwater
Journal of Marine Research
The a priori hypothesis that entrainment of shelf water by warm core rings reduces recruitment of marine fish stocks through offshore transport is tested. Weekly satellite images for 1973 through 1986 are used to generate time-series of the positions and numbers of warm core rings and the locations of the shelf-slope front from the mid-Atlantic Bight to the Grand Banks. These data are combined with estimates of the timing of the spawning and the duration of larval stages to create stock-specific annual indices of ring activity and shelf-slope front variability. There is evidence that increased warm core ring activity reduces …
Vertical Distribution Of Microbial And Meiofaunal Populations In Sediments Of A Natural Coastal Hydrocarbon Seep, Paul A. Montagna, James E. Bauer, Dane Hardin, Robert B. Spies
Vertical Distribution Of Microbial And Meiofaunal Populations In Sediments Of A Natural Coastal Hydrocarbon Seep, Paul A. Montagna, James E. Bauer, Dane Hardin, Robert B. Spies
Journal of Marine Research
We studied the vertical distribution of microbes and meiofauna in natural hydrocarbon seep sediments to determine if there was a relationship between profiles of benthic trophic structure and the unique biogeochemical conditions present at the seep. Three stations in the Santa Barbara Channel represented a gradient of natural petroleum seepage, from very active, to moderate, to none. Seasonal differences were examined by sampling in the three major oceanographic seasons, upwelling (April), mixed (July), and Davidson (December). Densities of microbes and meiofauna were highest in July, and decreased in winter. All population sizes decreased with increasing depth in the sediment. Harpacticoids …
Lagrangian Statistics In The South Atlantic As Derived From Sos And Fgge Drifters, Horacio A. Figueroa, Donald B. Olson
Lagrangian Statistics In The South Atlantic As Derived From Sos And Fgge Drifters, Horacio A. Figueroa, Donald B. Olson
Journal of Marine Research
Daily averaged positions obtained from satellite-tracked drifting buoys launched during the First GARP Global Experiment (FGGE) and those launched as part of the ONR sponsored Southern Ocean Studies (SOS) are used to analyze eddy diffusivity due to mesoscale motions and its parameterization in some regions of the South Atlantic Ocean, significantly extending the energy range for which this type of estimations are available. Diffusion coefficients, Lagrangian integral time scales and velocity variances are calculated, and Taylor's (1921) Theorem which relates eddy diffusivity estimates with the dispersion of particles from a fixed origin is tested. In all of the cases analyzed …
Circulation Of The Antarctic Intermediate Water In The North Atlantic Ocean, Mizuki Tsuchiya
Circulation Of The Antarctic Intermediate Water In The North Atlantic Ocean, Mizuki Tsuchiya
Journal of Marine Research
The Antarctic Intermediate Water in the North Atlantic Ocean is characterized by high concentrations of silica, and this characteristic is used to trace its circulation. An isopycnal map of silica reveals high-silica water extending on the west and north sides of the Mediterranean outflow water from the Straits of Florida as far northeast as 60N just south of Iceland. The extent of this high-silica Antarctic Intermediate Water is in remarkably good agreement with the path of the Gulf Stream-North Atlantic Current indicated by the geostrophic-flow field at this level.
The Spatial And Temporal Structure Of Hydrographic And Phytoplankton Biomass Heterogeneity Along The Catalan Coast (Nw Mediterranean), Mercedes Masó, Carlos M. Duarte
The Spatial And Temporal Structure Of Hydrographic And Phytoplankton Biomass Heterogeneity Along The Catalan Coast (Nw Mediterranean), Mercedes Masó, Carlos M. Duarte
Journal of Marine Research
The horizontal and temporal distribution of hydrographic properties and phytoplankton biomass along the Catalan coast were analyzed to determine their variance structure (i.e., variance partition between temporal, alongshore, and across-shore components), and the relationship between hydrographic heterogeneity and variability in phytoplankton biomass. Temporal chlorophyll variability was highly seasonal, but horizontal biomass variability was related to hydrographic variability, as evidenced by significant correlations to temperature and salinity. The strength of chlorophyll-salinity correlations changed according to the extent of riverine influences within the area, but significant correlations were always negative, indicating enhanced phytoplantkon growth due to river runoff. Temperature-chlorophyll correlations changed seasonally, …
Organic Matter Decomposition Pathways And Oxygen Consumption In Coastal Marine Sediments, James E. Mackin, Kenneth T. Swider
Organic Matter Decomposition Pathways And Oxygen Consumption In Coastal Marine Sediments, James E. Mackin, Kenneth T. Swider
Journal of Marine Research
In this study, we investigate the possible use of ∑CO2 production, determined from anoxic incubation experiments, and natural solute (O2, NH4+, SO4–) distributions to infer the pathways of organic matter decomposition in nearshore marine sediments. Integrated ∑CO2 production from anoxic incubation experiments agreed well with direct measurements of ∑CO2 fluxes across oxic sediment-water interfaces in Long Island Sound and Flax Pond salt marsh. This implies that anoxic incubations give reliable estimates of organic carbon remineralization rates. Therefore, anoxic ∑CO2 production, as a function of depth, was used to …