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Full-Text Articles in Entire DC Network
Yul Annual Report; 2007-2008, Yale University Library
Yul Annual Report; 2007-2008, Yale University Library
Yale University Library Annual Reports
No abstract provided.
From Debate To Design: Issues In Clean Energy And Climate Change Law And Policy, Leslie Parker, Jennifer Ronk, Rachel Maxwell, Bradford Gentry, Marijn Wilder, James Cameron
From Debate To Design: Issues In Clean Energy And Climate Change Law And Policy, Leslie Parker, Jennifer Ronk, Rachel Maxwell, Bradford Gentry, Marijn Wilder, James Cameron
Yale School of the Environment Publications Series
A report on the work of the REIL Network 2007-2008
Critical Turbulence Revisited: The Impact Of Submesoscale Vertical Mixing On Plankton Patchiness, A. W. Omta, S. A. L. M. Kooijman, H. A. Dijkstra
Critical Turbulence Revisited: The Impact Of Submesoscale Vertical Mixing On Plankton Patchiness, A. W. Omta, S. A. L. M. Kooijman, H. A. Dijkstra
Journal of Marine Research
By supplying nutrients to the ocean surface, submesoscale vertical motions can have a strong impact on phytoplankton growth and phytoplankton distributions. To study this impact, we model a phytoplankton population in a baroclinically unstable submesoscale eddy using a phytoplankton model coupled to a three-dimensional hydrodynamic model. In the eddy, strong vertical transports are generated as a consequence of baroclinic instability. The resulting plankton distributions turn out to depend strongly on the light intensity and local vertical transport. To analyze these distributions in detail, we use more idealized coupled hydrodynamic-biological models and we extend the critical turbulence concept to three dimensions.
Death Of Three Loop Current Rings, B. L. Lipphardt Jr., A. C. Poje, A. D. Kirwan Jr., L. Kantha, M. Zweng
Death Of Three Loop Current Rings, B. L. Lipphardt Jr., A. C. Poje, A. D. Kirwan Jr., L. Kantha, M. Zweng
Journal of Marine Research
The life cycle of large anticyclonic rings in the Gulf of Mexico (GOM) is widely described by pinch off from the Loop Current, migration across the Gulf and eventual spin down along the western slope. Extensive observational and modeling efforts provide a relatively consistent picture of rings pinching off from the Loop Current and of complex interaction between anticyclones and cyclones driven by bathymetry along the western and northwestern shelf. The observational record for Loop Current rings (LCRs) during the intermediate period of westward translation is less clear. A number of studies recognize distinct anomalies in LCR characteristics in deep …
Porewater Advection By Hydraulic Activities Of Lugworms, Arenicola Marina: A Field, Laboratory And Modeling Study, David S. Wethey, Sarah A. Woodin, Nils Volkenborn, Karsten Reise
Porewater Advection By Hydraulic Activities Of Lugworms, Arenicola Marina: A Field, Laboratory And Modeling Study, David S. Wethey, Sarah A. Woodin, Nils Volkenborn, Karsten Reise
Journal of Marine Research
Porewater pressure gradients generated by activities of the lugworm Arenicola marina were measured in the laboratory and in unrestrained field situations to determine the spatial extent of influence of individuals on porewater advection. These subsurface deposit-feeders live head-down in sediments in J-shaped burrows and defecate on the surface. Individual animals generated pressures of up to 18 cm H2O in the region of the feeding pocket, and the pressures decayed radially from the source with an exponent of -1.3. Pressure transients from defecation are detectable 50 cm from the source in unrestrained field populations. The porewater flows resulting from …
Hydrography And Flow In The Lucky Strike Segment Of The Mid-Atlantic Ridge, A. M. Thurnherr, G. Reverdin, P. Bouruet-Aubertot, L. C. St. Laurent, A. Vangriesheim, V. Ballu
Hydrography And Flow In The Lucky Strike Segment Of The Mid-Atlantic Ridge, A. M. Thurnherr, G. Reverdin, P. Bouruet-Aubertot, L. C. St. Laurent, A. Vangriesheim, V. Ballu
Journal of Marine Research
The Lucky Strike segment between 37 and 38N on the Mid-Atlantic Ridge is the focus of the international MoMAR program to monitor seafloor-spreading processes. During the GRAVILUCK cruise in August 2006, hydrographic, velocity and light-scattering data were collected in the rift valley at Lucky Strike in order to investigate the regional dynamics and to provide background information for the monitoring effort. The survey observations reveal a remarkably simple dynamical setting dominated by persistent northward flow transporting ≈0.2 Sv of water along the rift valley. Approximately half of this transport must upwell within a deep basin that occupies the northern half …
Larval Settlement In Flocculated Particulates, Cheryl Ann Zimmer, Victoria R. Starczak, Victoria C. Arch, Richard K. Zimmer
Larval Settlement In Flocculated Particulates, Cheryl Ann Zimmer, Victoria R. Starczak, Victoria C. Arch, Richard K. Zimmer
Journal of Marine Research
Planktonic larval settlement can be a major determinant of population and community dynamics. Settlement templates of benthic invertebrates have been attributed to biological, chemical, and hydrodynamic mechanisms. Completely unexplored, however, is the role of patchy, but widespread, flocculated particulates (“floc”) that intermittently rest on substrate surfaces. Motivated by observations of very high (of order 106 m-3) larval/postlarval densities in floc from a coastal embayment, this study experimentally identified physical and behavioral mechanisms responsible for these associations. In annular-flume studies, sediment cores were mounted flush with the channel bottom, serving as the floc source. Larval (Capitella sp. …
Modeling Effects Of Patchiness And Biological Variability On Transport Rates Within Bioturbated Sediments, Sebastien Delmotte, Magali Gerino, Jean Marc Thebault, Filip J. R. Meysman
Modeling Effects Of Patchiness And Biological Variability On Transport Rates Within Bioturbated Sediments, Sebastien Delmotte, Magali Gerino, Jean Marc Thebault, Filip J. R. Meysman
Journal of Marine Research
Bioturbation models are typically one-dimensional, with the underlying assumption that tracer gradients are predominantly vertical, and that sediment reworking is laterally homogeneous. These models implicitly assume that bioturbation activity does not vary with horizontal location on the sediment surface. Benthic organisms, however, are often patchily distributed. Moreover, due to natural variability, bioturbation activity varies among individuals within a population, and hence, among bioturbated patches. Here we analyze a 1D model formulation that explicitly includes patchiness, exemplified by conveyor-belt transport. The patchiness is represented with one coefficient αb, as the fraction of bioturbated areas of the total area. First, …
Interannual Variability In The Seasonal Cycle Of Chlorophyll In The Leeuwin Current Off The Southwest Western Australian Coast, Jim E. Greenwood, Karline Soetaert
Interannual Variability In The Seasonal Cycle Of Chlorophyll In The Leeuwin Current Off The Southwest Western Australian Coast, Jim E. Greenwood, Karline Soetaert
Journal of Marine Research
The seasonal cycle of surface chlorophyll in the Leeuwin Current off the southwest Western Australian coast is characterized by low austral summer concentrations that increase during the austral autumn and winter. Results from a one-dimensional numerical model show that a combination of solar heating and nutrient poor surface waters during the summer can restrict plankton growth to the base of the euphotic zone resulting in low surface chlorophyll concentrations that are consistent with observations. The model also suggests that increased vertical mixing caused by surface cooling can explain some of the observed increases in surface chlorophyll that occur during the …
Continuously Stratified Nonlinear Low-Mode Internal Tides, Karl R. Helfrich
Continuously Stratified Nonlinear Low-Mode Internal Tides, Karl R. Helfrich
Journal of Marine Research
A model for hydrostatic, fully nonlinear, low-mode internal tides is extended to continuously stratified conditions. Periodic inertia-gravity solutions of permanent form are shown to exist only for a limited range of amplitudes for a given stratification and frequency. As found in an earlier two-layer model, the solutions fall into two classes. In one, the waves take on a corner-shape as the limiting amplitude is approached. In the other, the waves remain continuous at the limiting amplitude, but have a lobate shape. Numerical investigation using the Euler equations shows that both classes of nonlinear solutions are robust to weak nonhydrostatic effects …
An Estimate Of Lagrangian Eddy Statistics And Diffusion In The Mixed Layer Of The Southern Ocean, J. B. Sallée, Kevin Speer, R. Morrow, R. Lumpkin
An Estimate Of Lagrangian Eddy Statistics And Diffusion In The Mixed Layer Of The Southern Ocean, J. B. Sallée, Kevin Speer, R. Morrow, R. Lumpkin
Journal of Marine Research
A statistical analysis of surface drifter observations is used to compute eddy length and time scales and eddy diffusion in the Southern Ocean. Eddy diffusion values of the order of 104 m2 s–1 are found in the energetic western boundary currents north of the Antarctic Circumpolar Current (ACC) and secondary peaks occur where the ACC negotiates topography. The diffusivity shows an increase from the Antarctic continent to the core of the ACC, then a slight decrease or a stable plateau within the ACC. North of the ACC, diffusivity generally decreases into the interior of ocean basins, except …
Shallow Marine Carbonate Dissolution And Early Diagenesis—Implications From An Incubation Study, Xinping Hu, David J. Burdige
Shallow Marine Carbonate Dissolution And Early Diagenesis—Implications From An Incubation Study, Xinping Hu, David J. Burdige
Journal of Marine Research
Surface carbonate sediments from sites on the Bahamas Bank with different seagrass densities were incubated across a range of O2 delivery rates, to study the controls on metabolic carbonate dissolution in these sediments. The results confirmed the 1:1 ratio between the rates of O2 consumption and carbonate dissolution, demonstrating that microbial respiration was the rate-limiting step in metabolic carbonate dissolution. Furthermore, the dissolution we observed was actually net dissolution resulting from coupled dissolution and reprecipitation. This carbonate reprecipitation occurs on the time scale of days, and significantly alters the pore water dissolved inorganic carbon (DIC) stable isotopic composition. …
The Effect Of Semi-Permanent Eddies On The Distribution Of Mesozooplankton In The Central Bay Of Bengal, Veronica Fernandes
The Effect Of Semi-Permanent Eddies On The Distribution Of Mesozooplankton In The Central Bay Of Bengal, Veronica Fernandes
Journal of Marine Research
Five locations in the central Bay of Bengal (BoB) along a longitudinal transect at 88E were sampled during the Fall Intermonsoon, 2002 for mesozooplankton biomass, abundance, groups and copepod species composition. Stations at 9N and 18N had signatures of cold-core eddies. Despite the notion that biological productivity in the BoB is poor, the mesozooplankton biomass (57-185 mM C m–2) and abundance (33-171 [× 103] individuals m–2) in the upper 1000 m were high and are close to the annual averages reported from the central Arabian Sea. The cold-core eddy at 9N led to elevated …
Drying Effects On Decomposition Of Salt Marsh Sediment And On Lysine Sorption, Zhanfei Liu, Cindy Lee, Robert C. Aller
Drying Effects On Decomposition Of Salt Marsh Sediment And On Lysine Sorption, Zhanfei Liu, Cindy Lee, Robert C. Aller
Journal of Marine Research
Sorption of organic compounds by coastal marine sediments is strongly affected by dry–wet cycling. In this study, we determined how drying (and rewetting) sediment affected the decomposition rate of organic matter under both oxic and anoxic conditions, and how sorption changed with decomposition. Organic matter decomposition showed distinct patterns in dried, rewetted sediments compared to those that had never been dried, based on a comparison of ammonium production rates, OC/N ratios and total hydrolyzable amino acid (THAA) loss rates. Net ammonium production rates were 29 (oxic) and 44 μM/d (anoxic) in dried, rewetted sediment and 4 (oxic) and 13 μM/d …
Internal-Wave Properties In Weakly Stratified Layers, Theo Gerkema, Eleftheria Exarchou
Internal-Wave Properties In Weakly Stratified Layers, Theo Gerkema, Eleftheria Exarchou
Journal of Marine Research
Following earlier studies, it is argued that internal waves propagating in weakly stratified layers are affected by the Coriolis terms proportional to the cosine of latitude (which are neglected in the so-called Traditional Approximation). A systematic overview is given of the wave properties if these terms are included. The usage of characteristics and vertical modes is compared and contrasted. It is shown that the ratio of potential and kinetic energy varies horizontally if more than one mode is considered. For many modes, the energy becomes organized in beams, within which the ratio approaches the values obtained from the characteristics. The …
Cross-Shelf Structure Of Coastal Upwelling: A Two —Dimensional Extension Of Ekman’S Theory And A Mechanism For Inner Shelf Upwelling Shut Down, Philippe Estrade, Patrick Marchesiello, Alain Colin De Verdière, Claude Roy
Cross-Shelf Structure Of Coastal Upwelling: A Two —Dimensional Extension Of Ekman’S Theory And A Mechanism For Inner Shelf Upwelling Shut Down, Philippe Estrade, Patrick Marchesiello, Alain Colin De Verdière, Claude Roy
Journal of Marine Research
Sea-surface temperature images of the coastal upwelling regions off Northwest Africa show that the core of upwelling is sometimes located far from the coast. This has been documented in three regions that share a common feature, namely a wide and shallow continental shelf. This upwelling feature plays a key role in the ecology of the Canary Current System. It creates an innerfront which provides retention for biological material, e.g. fish eggs and larvae, in the highly productive nearshore environment. An analytical model has been developed based on a two dimensional extension of Ekman's solution. The linear and steady response of …
On The Effect Of A Sill On Dense Water Formation In A Marginal Sea, Doroteaciro Iovino, Fiammetta Straneo, Michael A. Spall
On The Effect Of A Sill On Dense Water Formation In A Marginal Sea, Doroteaciro Iovino, Fiammetta Straneo, Michael A. Spall
Journal of Marine Research
The properties of water mass transformation in a semi-enclosed basin, separated from the open ocean by a sill and subject to surface cooling, are analyzed both theoretically and numerically using an ocean general circulation model. This study extends previous studies of convection in a marginal sea to the case with a sill. The sill has a strong impact on both the properties of the dense water formed in the interior and on those of the waters flowing out the marginal sea. It results in a colder interior and colder outflow compared to the case with no sill. Dynamically, this is …
Combined Effect Of Wind-Forcing And Isobath Divergence On Upwelling At Cape Bathurst, Beaufort Sea, William J. Williams, Eddy C. Carmack
Combined Effect Of Wind-Forcing And Isobath Divergence On Upwelling At Cape Bathurst, Beaufort Sea, William J. Williams, Eddy C. Carmack
Journal of Marine Research
Cape Bathurst is at the northeastern end of the Canadian Beaufort Shelf in the southeastern Beaufort Sea where the continental shelf abruptly ends at Amundsen Gulf. In this area, the steep slope east of the cape joins the relatively flat shelf immediately north of the cape leading to strong isobath divergence at the cape. Hydrographic and satellite data show upwelling of nutrient-rich, Pacific-origin water to the surface at Cape Bathurst when surface stress is upwelling-favorable for the Canadian Beaufort Shelf. We suggest that this enhanced upwelling is forced by the adjustment of the along-shelf flow (that is part of upwelling …
Assessing The Wind Field Over The Continental Shelf As A Resource For Electric Power, Richard W. Garvine, Willett Kempton
Assessing The Wind Field Over The Continental Shelf As A Resource For Electric Power, Richard W. Garvine, Willett Kempton
Journal of Marine Research
To assess the wind power resources of a large continental shelf area, we analyze the 18-year hourly wind records from meteorological stations in the US Middle Atlantic Bight (MAB), comparing areas of coast, estuary, and open shelf. We calculate winds at turbine hub height for the sea breeze compared with synoptic winds and, for each type of site, we compare the seasonal and daily phase match to electrical load. To improve large-scale ocean power resource calculations, we derive an iterative algorithm to determine the surface roughness coefficient (z0). Our method calculates z0 for specific times and …
Shelfbreak Frontal Structure And Processes North Of Cape Hatteras In Winter, Glen Gawarkiewicz, James Churchill, Frank Bahr, Chris Linder, Craig Marquette
Shelfbreak Frontal Structure And Processes North Of Cape Hatteras In Winter, Glen Gawarkiewicz, James Churchill, Frank Bahr, Chris Linder, Craig Marquette
Journal of Marine Research
The circulation north of Cape Hatteras is complicated by the proximity of the shelfbreak front, the Gulf Stream, and convergent shelf flow from the Middle and South Atlantic Bights. A three-week cruise in this region in January/February, 2005 was undertaken in order to study the structure of the shelfbreak front as it terminates near Cape Hatteras and to quantify the freshwater transport from the Middle Atlantic Bight shelf into the Gulf Stream. Two strongly contrasting conditions were identified. Early in the cruise, the Gulf Stream directly abutted the shelfbreak at Cape Hatteras and drove a northward flow over the continental …
Energetics In Delaware Bay: Comparison Of Two Box Models With Observations, Ana E. Rice, Michael M. Whitney, Richard W. Garvine, Pablo Huq
Energetics In Delaware Bay: Comparison Of Two Box Models With Observations, Ana E. Rice, Michael M. Whitney, Richard W. Garvine, Pablo Huq
Journal of Marine Research
A corrected version of an unstratified box model of potential energy anomaly , initially developed by Garvine and Whitney (2006), and a new two-layer box model that allows for stratified and well-mixed conditions are applied to Delaware Bay. The models are applied for the Garvine and Whitney (2006) 1988-1994 study period and in Spring 2003; however, only model results of potential energy anomaly from the latter period are compared to in situ observations obtained outside the bay mouth. Unstratified model results for the two study periods reveal that the river discharge (Ω1) is the largest potential energy anomaly …
Worms As Wedges: Effects Of Sediment Mechanics On Burrowing Behavior, Kelly M. Dorgan, Sanjay R. Arwade, Peter A. Jumars
Worms As Wedges: Effects Of Sediment Mechanics On Burrowing Behavior, Kelly M. Dorgan, Sanjay R. Arwade, Peter A. Jumars
Journal of Marine Research
Recent studies document linear elastic response of muddy marine sediments to load and deformation on temporal and spatial scales relevant to animal movement, with burrowers making openings for movement in such sediments by fracture. Cracks propagate through linear elastic solids in mode I (opening-mode crack growth) when the stress intensity factor (KI) at the crack tip exceeds the material's fracture toughness (KIc). Fracture mechanics depend on material stiffness as well as fracture toughness, and we prepared a range of transparent gels that varied in stiffness and fracture toughness to assess the dependence of burrowing …
Evaluating Salt-Fingering Theories, R. Inoue, E. Kunze, L. St. Laurent, R. W. Schmitt, J. M. Toole
Evaluating Salt-Fingering Theories, R. Inoue, E. Kunze, L. St. Laurent, R. W. Schmitt, J. M. Toole
Journal of Marine Research
The NATRE fine- and microstructure data set is revisited to test salt-finger amplitude theories. Dependences of the mixing efficiency Γ, microscale buoyancy Reynolds number Re and thermal Cox number CxT on 5-m density ratio Rρ and gradient Richardson number Ri are examined. The observed mixing efficiency is too high to be explained by linear fastest-growing fingers but can be reproduced by wavenumbers 0.5-0.9 times lower than the fastest-growing wavenumber. Constraining these fingers with a hybrid wave/finger Froude number or a finger Reynolds number cannot reproduce the observed trends with Rρ or Ri, respectively. This suggests that …
Turbulence And Boluses On An Internal Beach, Daniel Bourgault, Dan E. Kelley, Peter S. Galbraith
Turbulence And Boluses On An Internal Beach, Daniel Bourgault, Dan E. Kelley, Peter S. Galbraith
Journal of Marine Research
In a manner similar to that of surface waves on beaches, high-frequency interfacial waves (IWs) may break when approaching the 'internal coastline,' where the undisturbed pycnocline intersects the shoaling bottom. This process has been studied previously in idealized laboratory and numerical experiments but there are few field observations to document the properties of IWs shoaling on natural internal beaches. This paper presents observations of currents, density and turbulence collected inshore of the break point of an internal beach of the St. Lawrence Estuary. A series of large- and small-amplitude complex-shaped and unorganized internal boluses was observed. The structure of these …
Influence Of Advective Bio-Irrigation On Carbon And Nitrogen Cycling In Sandy Sediments, Taehee Na, Britta Gribsholt, Oleksiy S. Galaktionov, Tongsup Lee, Filip J. R. Meysman
Influence Of Advective Bio-Irrigation On Carbon And Nitrogen Cycling In Sandy Sediments, Taehee Na, Britta Gribsholt, Oleksiy S. Galaktionov, Tongsup Lee, Filip J. R. Meysman
Journal of Marine Research
In sandy sediments, the burrow ventilation activity of benthic macrofauna can generate substantial advective flows within the sediment surrounding their burrows. Here we investigated the effects of such advective bio-irrigation on carbon and nitrogen cycling in sandy sediments. To this end, we combined a range of complementary experimental and modelling approaches in a microcosm study of the lugworm Arenicola marina (Polychaeta: Annelida). Bio-irrigation rates were determined using uranine as a tracer, while benthic fluxes of oxygen (O2), total carbon dioxide (TCO2), dissolved inorganic nitrogen (NH4+, ΣNO2− + NO3−) …
Richard W. Garvine (1940 –2007), Kenneth H. Brink, Glen G. Gawarkiewicz
Richard W. Garvine (1940 –2007), Kenneth H. Brink, Glen G. Gawarkiewicz
Journal of Marine Research
Richard Garvine passed away on December 10, 2007 of pancreatic cancer, and the ocean science community lost a respected, humane leader whose impact will endure on several levels. Rich was born in 1940 in Pottstown, Pennsylvania. His undergraduate degree in aerospace engineering at M.I.T. was followed by a Ph.D. at Princeton University in 1965, also in aerospace engineering. He was hired by the General Electric Space Sciences Laboratory as a theoretical aerodynamicist, but in 1969, perhaps prodded by a downturn in the aerospace field, he made the rather dramatic shift to a position as an Assistant Professor of Oceanography at …
Ocean Current Observations From Nares Strait To The West Of Greenland: Interannual To Tidal Variability And Forcing, Andreas Münchow, Humfrey Melling
Ocean Current Observations From Nares Strait To The West Of Greenland: Interannual To Tidal Variability And Forcing, Andreas Münchow, Humfrey Melling
Journal of Marine Research
During 2003–06, as part of the Arctic Sub-Arctic Ocean Flux (ASOF) experiment, an array of oceansensing instruments was deployed at 80.5N latitude to investigate the flux of seawater from the Arctic Ocean via Nares Strait, the pathway to the west of Greenland. Three-year measurements of current from this experiment provide, for the first time at periods longer than a single season, the seawater flux and its variability via this important pathway. Below 30-m depth the average flux of volume 2003–06 was 0.57±0.09 Sv (1 Sv = 106 m3 s–1) southward over a 38-km wide section reaching …
Mean Energy Balance In The Tropical Pacific Ocean, Jaclyn N. Brown, Alexey V. Fedorov
Mean Energy Balance In The Tropical Pacific Ocean, Jaclyn N. Brown, Alexey V. Fedorov
Journal of Marine Research
The maintenance of the ocean general circulation requires energy input from the wind. Previous studies estimate that the mean rate of wind work (or wind power) acting on the surface currents over the global ocean amounts to 1.1 TW (1 TW = 1012 Watts), though values remain highly uncertain. By analyzing the output from a range of ocean-only models and data assimilations, we show that the tropical Pacific Ocean contributes around 0.2 to 0.4 TW, which is roughly half of the total tropical contribution. Not only does this wind power represent a significant fraction of the total global energy …
Modeling Estuarine Ingress Of Blue Crab Megalopae: Effects Of Temporal Patterns In Larval Release, Charles E. Tilburg, Colleen D. Kernehan, Alex Andon, Charles E. Epifanio
Modeling Estuarine Ingress Of Blue Crab Megalopae: Effects Of Temporal Patterns In Larval Release, Charles E. Tilburg, Colleen D. Kernehan, Alex Andon, Charles E. Epifanio
Journal of Marine Research
The Atlantic blue crab Callinectes sapidus is an important predator in estuarine ecosystems and supports a large commercial fishery throughout its range. Settlement of blue crab megalopae in juvenile nurseries is episodic and is controlled by the combined effect of buoyancy- and wind-driven transport processes. Modeling studies have succeeded in hind-casting the temporal pattern of megalopal settlement but not the magnitude of individual settlement events. This shortcoming has been attributed to the lack of information concerning larval release by the adult spawning population. In this paper we present results of a set of field and modeling studies designed to test …
Episodic Downwelling Predicts Recruitment Of Atlantic Cod, Greenland Cod And White Hake To Newfoundland Coastal Waters, D. W. Ings, R. S. Gregory, D. C. Schneider
Episodic Downwelling Predicts Recruitment Of Atlantic Cod, Greenland Cod And White Hake To Newfoundland Coastal Waters, D. W. Ings, R. S. Gregory, D. C. Schneider
Journal of Marine Research
Recruitment in marine fish is influenced by abiotic and biotic processes operating at many spatial and temporal scales. Annual recruitment to fisheries has received more attention at the scale of the population than at finer temporal scales, where spatially heterogeneous biological processes modify year-class success. We tested two hypotheses: (1) that recruitment of marine fish to the nearshore benthos at a fine temporal scale is determined by downwelling associated with onshore winds and (2) that fish arrival nearshore is related to tidal stage. During summer and autumn 1998 to 2001 and late spring to autumn 2002, we monitored recruitment of …