scholarly journals Contaminant bioaccumulation dynamics in young-of-the-year bluefish subpopulations in New York Bight with a special reference to the condition and nursery area fidelity subsequent to recruitment

2016 ◽  
Vol 73 (1) ◽  
pp. 35-52 ◽  
Author(s):  
Ashok D. Deshpande ◽  
Bruce W. Dockum ◽  
Andrew F.J. Draxler
Keyword(s):  
New York ◽  
Growth Characteristic ◽  
Hudson River ◽  
Fish Length ◽  
New York Bight ◽  
Pcb Congeners ◽  
York Bight ◽  
Young Of The Year ◽  
Contamination Levels ◽  
Newark Bay

Contaminant bioaccumulation dynamics was examined in young-of-the-year (YOY) bluefish subpopulations (Pomatomus saltatrix) in the New York Bight ecosystem, and the results were used to assess (i) effects of habitat quality in terms of levels of PCBs and pesticides on bluefish condition and (ii) fidelity of YOY bluefish to different subestuaries that served as the nurseries subsequent to recruitment during their first summer. Total PCBs and p,p′-DDE body burdens increased with fish length, but concentrations generally increased only poorly to moderately, which suggested steady-state contaminant uptake commensurate with aggressive feeding and dilution related to rapid growth characteristic of YOY bluefish within a subestuary. High condition factors paired with elevated contamination levels in bluefish from the Lower Hudson River, as compared with bluefish from Newark Bay with poor condition factors paired with elevated contamination levels, suggested that PCBs and pesticides alone may not determine condition in these fish. We found dissimilar patterns of prominent PCB congeners in bluefish from adjacent subestuaries (e.g., Newark Bay and Lower Hudson River) suggesting separate contaminant sources. Total PCB normalized fingerprints of PCB congeners permitted statistical discrimination among YOY bluefish specimens from various estuaries with a potential to differentiate subpopulations on scales to less than 20 km. This unexpected fidelity to nursery estuaries may have implications for the management strategies.

scholarly journals Dispersal of the Hudson River Plume in the New York Bight: Synthesis of Observational and Numerical Studies During LaTTE

Oceanography ◽  
2008 ◽  
Vol 21 (4) ◽  
pp. 148-161 ◽  
Author(s):  
Robert Chant ◽  
John Wilkin ◽  
Weifeng Zhang ◽  
Byoung-Ju Choi ◽  
Eli Hunter ◽  
...  
Keyword(s):  
New York ◽  
Hudson River ◽  
River Plume ◽  
New York Bight ◽  
York Bight ◽  
Numerical Studies

Levels and patterns of PCDD and PCDF contamination in fish, crabs, and lobsters from Newark Bay and the New York Bight

Chemosphere ◽  
1991 ◽  
Vol 22 (3-4) ◽  
pp. 239-266 ◽  
Author(s):  
Christoffer Rappe ◽  
Per-Anders Bergqvist ◽  
Lars-Owe Kjeller ◽  
Stephen Swanson ◽  
Thomas Belton ◽  
...  
Keyword(s):  
New York ◽  
New York Bight ◽  
York Bight ◽  
Newark Bay

Modeling the Pathways and Mean Dynamics of River Plume Dispersal in the New York Bight

2009 ◽  
Vol 39 (5) ◽  
pp. 1167-1183 ◽  
Author(s):  
Weifeng G. Zhang ◽  
John L. Wilkin ◽  
Robert J. Chant
Keyword(s):  
New York ◽  
New Jersey ◽  
Hudson River ◽  
Ocean Modeling ◽  
Ocean Dynamics ◽  
Surface Currents ◽  
Regional Ocean Modeling System ◽  
New York Bight ◽  
York Bight ◽  
The Mean

Abstract This study investigates the dispersal of the Hudson River outflow across the New York Bight and the adjacent inner- through midshelf region. Regional Ocean Modeling System (ROMS) simulations were used to examine the mean momentum dynamics; the freshwater dispersal pathways relevant to local biogeochemical processes; and the contribution from wind, remotely forced along-shelf current, tides, and the topographic control of the Hudson River shelf valley. The modeled surface currents showed many similarities to the surface currents measured by high-frequency radar [the Coastal Ocean Dynamics Applications Radar (CODAR)]. Analysis shows that geostrophic balance and Ekman transport dominate the mean surface momentum balance, with most of the geostrophic flow resulting from the large-scale shelf circulation and the rest being locally generated. Subsurface circulation is driven principally by the remotely forced along-shelf current, with the exception of a riverward water intrusion in the Hudson River shelf valley. The following three pathways by which freshwater is dispersed across the shelf were identified: (i) along the New Jersey coast, (ii) along the Long Island coast, and (iii) by a midshelf offshore pathway. Time series of the depth-integrated freshwater transport show strong seasonality in dispersal patterns: the New Jersey pathway dominates the winter–spring seasons when winds are downwelling favorable, while the midshelf pathway dominates summer months when winds are upwelling favorable. A series of reduced physics simulations identifies that wind is the major force for the spreading of freshwater to the mid- and outer shelf, that remotely forced along-shelf currents significantly influence the ultimate fate of the freshwater, and that the Hudson River shelf valley has a modest dynamic effect on the freshwater spreading.

The Effect of Wind on the Dispersal of the Hudson River Plume

2007 ◽  
Vol 37 (7) ◽  
pp. 1878-1897 ◽  
Author(s):  
Byoung-Ju Choi ◽  
John L. Wilkin
Keyword(s):  
New York ◽  
River Discharge ◽  
Bottom Topography ◽  
Hudson River ◽  
River Plume ◽  
Wind Forcing ◽  
High Discharge ◽  
New York Bight ◽  
York Bight ◽  
Freshwater Export

Abstract The dispersal of the Hudson River plume in response to idealized wind forcing is studied using a three-dimensional model. The model domain includes the Hudson River and its estuary, with a realistic coastline and bottom topography of the New York Bight. Steady low river discharge typical of mean conditions and a high-discharge event representative of the spring freshet are considered. Without wind forcing the plume forms a southward coastally trapped current at low river discharge and a large recirculating bulge of low-salinity water during a high-discharge event. Winds affect the freshwater export through the mouth of the estuary, which is the trajectory the plume takes upon entering the waters of the Mid-Atlantic Bight inner shelf, and the rate at which freshwater drains downstream. The dispersal trajectory is also influenced by the particular geography of the coastline in the apex of the New York Bight. Northward wind causes offshore displacement of a previously formed coastally trapped plume and drives a new plume along the Long Island coast. Southward wind induces a strong coastal jet that efficiently drains freshwater to the south. Eastward wind aids freshwater export from the estuary and favors the accumulation of freshwater in the recirculating bulge outside the mouth of Raritan Bay. Westward wind delays freshwater export from Raritan Bay. The momentum balance of the modeled plume shows that buoyancy and wind forces largely determine the pattern of horizontal freshwater dispersal, including the spreading of freshwater over ambient, more saline water and the bulge formation.

Coupling of Organic Pollutants Between the Estuary and Continental Shelf and the Sediments and Water Column in the New York Bight Region

1983 ◽  
Vol 40 (S2) ◽  
pp. s262-s276 ◽  
Author(s):  
Paul D. Boehm
Keyword(s):  
New York ◽  
Sewage Sludge ◽  
Water Column ◽  
Hudson River ◽  
Fused Silica ◽  
Polynuclear Aromatic Hydrocarbons ◽  
Dredged Material ◽  
Sediment Grain Size ◽  
New York Bight ◽  
York Bight

The composition and distribution of polynuclear aromatic hydrocarbons (PAH), poly-chlorinated biphenyls (PCB), and coprostanol in suspended particulate matter in the Hudson River–Lower Bay–New York Bight system were investigated. Fused silica capillary gas chromatography and gas chromatographic mass spectrometry were employed for PAH, PCB, and coprostanol determinations. Additionally, dredged material and sewage sludge waste deposits from the bight were size fractionated and analyzed. Between the estuary and shelf and between the benthos and water column, chemical flux mechanisms included Hudson River sediment resuspension and bottom water transport within the estuary, sewage effluent input to harbour–river surface waters followed by seaward transport, landward transport of resuspended bight sediment linked to resuspension of PAH-rich dredged material, and possible transport of sewage-associated organics down the Hudson Valley. The composition of PAH and PCB varied with sediment grain size. Dredged materials were rich in pyrogenic PAH, while PAH in sewage sludge were mainly of a petroleum origin. PAH, PCB, and coprostanol levels were decoupled in the water column particles, probably due to differential solubility behavior of the three compound classes.

C15+ HYDROCARBONS IN THE SEDIMENTS OF THE NEW YORK BIGHT

1979 ◽  
Vol 1979 (1) ◽  
pp. 625-628 ◽  
Author(s):  
Charles B. Koons ◽  
James P. Thomas
Keyword(s):  
New York ◽  
Sewage Sludge ◽  
Continental Shelf ◽  
Hudson River ◽  
Sediment Samples ◽  
Continental Rise ◽  
New York Bight ◽  
York Bight ◽  
Sludge Disposal ◽  
Dredge Spoil

ABSTRACT The purpose of this study was to document the distribution and abundance of C 15+ hydrocarbons in sediment samples taken from the Hudson River, the New York Harbor, and across the continental shelf to the continental rise. Collection of 35 of these samples took place in 1975–76 using a multiple corer, a bottom grab, or the submersible Alvin. Materials obtained from these areas were considered representative and included dredge spoils, sewage sludge, and sediment from both the Deepwater Dumpsite 106 on the continental rise and the comparatively cleaner sea floor of the continental shelf beyond the apex of the New York Bight. Total C15+ hydrocarbons are most abundant (3000–6000 parts per million) in areas highly impacted by man—harbor sediments and dredge spoil and sewage sludge disposal areas. Values from the continental shelf are lower (80 ppm) and values from the continental rise are the lowest (40 ppm). Gas chromatographic traces clearly distinguish the hydrocarbons in the dredge spoil and sewage sludge sediment samples from the hydrocarbons found in sediment samples relatively free of sludge or spoil materials.

Sign in / Sign up

Export Citation Format

Share Document