1
|
Caracappa JC, Munroe DM, Fuchs HL, Chant RJ. Influences of brood-dependent behavioral variation on blue crab (Callinectes sapidus) larval transport in a wind-driven estuarine plume. Ecol Modell 2023. [DOI: 10.1016/j.ecolmodel.2023.110295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
|
2
|
Xiong J, Shen J, Wang Q. Storm-induced coastward expansion of Margalefidinium polykrikoides bloom in Chesapeake Bay. MARINE POLLUTION BULLETIN 2022; 184:114187. [PMID: 36206613 DOI: 10.1016/j.marpolbul.2022.114187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 09/22/2022] [Accepted: 09/25/2022] [Indexed: 06/16/2023]
Abstract
An unusual coastward expansion of the toxic dinoflagellate species Margalefidinium polykrikoides was observed in 2020 summer after a tropical storm passing Chesapeake Bay. Such coastward expansion was only recorded in 2007. A newly developed coupled Lagrangian particle tracking and harmful algal bloom model driven by environmental variables was used to investigate the underlying mechanisms and successfully reproduced the expansion patterns. Persistent pre-storm southerly winds favored the delivery of bloom source water originated inside the bay to the coast. Storm-induced strong upwelling of denser subsurface water interacted with the after-storm outflow plume (steered southward as the storm's impacts waned), forming a transport barrier to accumulate algae and delineate the coastwide bloom extent. Algal diel vertical migrations and transport barrier enable algae to stay in the nearshore regions. The storm-induced coastward expansion of M. polykrikoides might increase future bloom possibility in the coastal area.
Collapse
Affiliation(s)
- Jilian Xiong
- Virginia Institute of Marine Science, William & Mary, Gloucester Point 23062, VA, USA
| | - Jian Shen
- Virginia Institute of Marine Science, William & Mary, Gloucester Point 23062, VA, USA
| | - Qing Wang
- International Institute for Earth System Science, the School of Geography and Ocean Science, Nanjing University, Nanjing 210046, China.
| |
Collapse
|
3
|
Optimum Multiparameter Analysis of Water Mass Structure off Western Guangdong during Spring Monsoon Transition. WATER 2022. [DOI: 10.3390/w14030375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Water masses and their variability play vital roles in regulating ocean circulation, material exchanges and biogeochemical processes. However, there is still a lack of quantitative analysis of water mass distributions in coastal waters of the South China Sea. Here, two oceanographic cruise observations in April and May 2016 are used to quantify water mass distributions, pathways and mixture, and their intraseasonal variability off western Guangdong during the spring monsoon transition. Temperature and salinity observations qualitatively reveal that there are three types of water masses: the Pearl River diluted water (PRDW, salinity (S) = 22 psu, potential temperature (θ) = 25 °C), the South China Sea surface water (SCSSW, S = 34 psu, θ = 28 °C) and the South China Sea subsurface water mass (SCSSUW, S = 34.5 psu, θ = 17 °C). Their relative contributions and intraseasonal variability are quantified using the Optimum Multiparameter (OMP) method. The PRDW is largely confined to the upper 10 m layer in shallow nearshore waters (depths < 30 m), with a maximum contribution >90% near the Pearl River Estuary. The SCSSW mainly dominates the rest of the surface layer above 20 m, with a contribution >50% in offshore regions. The layer below 20 m is primarily composed of ~60% SCSSW and ~40% SCSSUW. A comparison between the two different observations suggests that the PRDW tends to expand southwestward and the SCSSUW spreads offshore, whereas the SCSSW moves landward and is situated underneath the surface fresh PRDW. These characteristics are very likely associated with the wind transition from weak southeasterly in April to strong northeasterly in May, which enhances the southwestward coastal current and the onshore surface Ekman transport from offshore waters.
Collapse
|
4
|
Largier JL. Upwelling Bays: How Coastal Upwelling Controls Circulation, Habitat, and Productivity in Bays. ANNUAL REVIEW OF MARINE SCIENCE 2020; 12:415-447. [PMID: 31530079 DOI: 10.1146/annurev-marine-010419-011020] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Bays in coastal upwelling regions are physically driven and biochemically fueled by their interaction with open coastal waters. Wind-driven flow over the shelf imposes a circulation in the bay, which is also influenced by local wind stress and thermal bay-ocean density differences. Three types of bays are recognized based on the degree of exposure to coastal currents and winds (wide-open bays, square bays, and elongated bays), and the characteristic circulation and stratification patterns of each type are described. Retention of upwelled waters in bays allows for dense phytoplankton blooms that support productive bay ecosystems. Retention is also important for the accumulation of larvae, which accounts for high recruitment in bays. In addition, bays are coupled to the shelf ecosystem through export of plankton-rich waters during relaxation events. Ocean acidification and deoxygenation are a concern in bays because local extrema can develop beneath strong stratification.
Collapse
Affiliation(s)
- John L Largier
- Department of Environmental Science and Policy, University of California, Davis, California 95616, USA
- Coastal and Marine Sciences Institute, University of California, Davis, Bodega Bay, California 94923, USA;
| |
Collapse
|
5
|
Mannino A, Signorini SR, Novak MG, Wilkin J, Friedrichs MAM, Najjar RG. Dissolved organic carbon fluxes in the Middle Atlantic Bight: An integrated approach based on satellite data and ocean model products. JOURNAL OF GEOPHYSICAL RESEARCH. BIOGEOSCIENCES 2016; 121:312-336. [PMID: 29201582 PMCID: PMC5706124 DOI: 10.1002/2015jg003031] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Continental margins play an important role in global carbon cycle, accounting for 15-21% of the global marine primary production. Since carbon fluxes across continental margins from land to the open ocean are not well constrained, we undertook a study to develop satellite algorithms to retrieve dissolved organic carbon (DOC) and combined these satellite data with physical circulation model products to quantify the shelf boundary fluxes of DOC for the U.S. Middle Atlantic Bight (MAB). Satellite DOC was computed through seasonal relationships of DOC with colored dissolved organic matter absorption coefficients, which were derived from an extensive set of in situ measurements. The multiyear time series of satellite-derived DOC stocks (4.9 Teragrams C; Tg) shows that freshwater discharge influences the magnitude and seasonal variability of DOC on the continental shelf. For the 2010-2012 period studied, the average total estuarine export of DOC into the MAB shelf is 0.77 Tg C yr-1 (year). The integrated DOC tracer fluxes across the shelf boundaries are 12.1 Tg C yr-1 entering the MAB from the southwest alongshore boundary, 18.5 Tg C yr-1 entering the MAB from the northeast alongshore boundary, and 29.0 Tg C yr-1 flowing out of the MAB across the entire length of the 100 m isobath. The magnitude of the cross-shelf DOC flux is quite variable in time (monthly) and space (north to south). The highly dynamic exchange of water along the shelf boundaries regulates the DOC budget of the MAB at subseasonal time scales.
Collapse
Affiliation(s)
| | - Sergio R Signorini
- NASA Goddard Space Flight Center, Greenbelt, Maryland, USA
- Science Applications International Corp., Washington, District of Columbia, USA
| | - Michael G Novak
- NASA Goddard Space Flight Center, Greenbelt, Maryland, USA
- Science Systems and Applications Inc., Lanham, Maryland, USA
| | - John Wilkin
- Institute of Marine and Coastal Sciences, State University of New Jersey Rutgers, New Brunswick, New Jersey, USA
| | - Marjorie A M Friedrichs
- Virginia Institute of Marine Science, College of William and Mary, Gloucester Point, Virginia, USA
| | - Raymond G Najjar
- Department of Meteorology, Pennsylvania State University, University Park, Pennsylvania, USA
| |
Collapse
|
6
|
Washburn L, Fewings MR, Melton C, Gotschalk C. The propagating response of coastal circulation due to wind relaxations along the central California coast. ACTA ACUST UNITED AC 2011. [DOI: 10.1029/2011jc007502] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
7
|
|
8
|
Castelao R, Glenn S, Schofield O. Temperature, salinity, and density variability in the central Middle Atlantic Bight. ACTA ACUST UNITED AC 2010. [DOI: 10.1029/2009jc006082] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Renato Castelao
- Department of Marine Sciences University of Georgia Athens Georgia USA
| | - Scott Glenn
- Institute of Marine and Coastal Sciences, Rutgers State University of New Jersey New Brunswick New Jersey USA
| | - Oscar Schofield
- Institute of Marine and Coastal Sciences, Rutgers State University of New Jersey New Brunswick New Jersey USA
| |
Collapse
|
9
|
Melton C, Washburn L, Gotschalk C. Wind relaxations and poleward flow events in a coastal upwelling system on the central California coast. ACTA ACUST UNITED AC 2009. [DOI: 10.1029/2009jc005397] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
10
|
Pan X, Mannino A, Russ ME, Hooker SB. Remote sensing of the absorption coefficients and chlorophyllaconcentration in the United States southern Middle Atlantic Bight from SeaWiFS and MODIS-Aqua. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2008jc004852] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
11
|
Mannino A, Russ ME, Hooker SB. Algorithm development and validation for satellite-derived distributions of DOC and CDOM in the U.S. Middle Atlantic Bight. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2007jc004493] [Citation(s) in RCA: 187] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
12
|
Castelao R, Schofield O, Glenn S, Chant R, Kohut J. Cross-shelf transport of freshwater on the New Jersey shelf. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2007jc004241] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
13
|
Chant RJ, Glenn SM, Hunter E, Kohut J, Chen RF, Houghton RW, Bosch J, Schofield O. Bulge Formation of a Buoyant River Outflow. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2007jc004100] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
14
|
|
15
|
Johnson DR, Weidemann A, Arnone R, Davis CO. Chesapeake Bay outflow plume and coastal upwelling events: Physical and optical properties. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/1999jc000185] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
16
|
D'Sa EJ, Lohrenz SE, Churchill JH, Asper VL, Largier JL, Williams AJ. Chloropigment distribution and transport on the inner shelf off Duck, North Carolina. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/1999jc000103] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
17
|
|
18
|
Lentz S, Guza RT, Elgar S, Feddersen F, Herbers THC. Momentum balances on the North Carolina inner shelf. ACTA ACUST UNITED AC 1999. [DOI: 10.1029/1999jc900101] [Citation(s) in RCA: 149] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|