Spatial and Temporal Growth Rate Variation of Bay Anchovy (Anchoa mitchilli) Larvae in the mid Hudson River Estuary

Estuaries ◽  
2000 ◽  
Vol 23 (5) ◽  
pp. 683 ◽  
Author(s):  
Rebecca C. Jordan ◽  
Angela M. Gospodarek ◽  
Eric T. Schultz ◽  
Robert K. Cowen ◽  
Kamazima Lwiza
Keyword(s):  
Growth Rate ◽  
River Estuary ◽  
Hudson River ◽  
Hudson River Estuary ◽  
Rate Variation ◽  
Anchoa Mitchilli ◽  
Bay Anchovy ◽  
Temporal Growth Rate

Hudson River Fishes and their Environment

2006 ◽  
Keyword(s):  
Trophic Position ◽  
Atlantic Coast ◽  
River Estuary ◽  
Hudson River ◽  
Hudson River Estuary ◽  
Total Abundance ◽  
Distributional Patterns ◽  
Age Segregation ◽  
Bay Anchovy ◽  
The U.S

<em>Abstract.–</em>Bay anchovy are the most abundant fish found along the U.S. Atlantic coast. This coupled with trophic position and importance to piscivores makes them ecologically vital. However, the anchovy’s small size renders them vulnerable to impingement and entrainment at industrial water intakes. Therefore, knowledge of anchovy spatial distributions relative to such intakes is critical to understanding anthropogenic effects on this species. To evaluate the distributional ecology of bay anchovy in the Hudson River Estuary we conducted seasonal hydroacoustic surveys to define regional density and total abundance of larval, juvenile, and adult anchovy in the river from 1996–1998. Adults concentrated in the lower river during prespawning periods, utilizing the lower 50 km during spawning. Adults dispersed within the river and then emigrated during fall and winter. Larvae and juveniles were in highest densities upriver of spawning locations, with a downriver shift in density distribution during fall. Few juveniles overwintered in the river. Abundance of all stages peaked in spawning season, 1997, when abundance of adults, juveniles, and larvae were estimated at 150 million, 3 billion, and 5.5 billion individuals, respectively. Distributional patterns suggest a panmictic population that includes the Hudson River Estuary and nearby coastal areas, but with possible age segregation. These findings suggest population impacts to anchovy within the River may be distributed on a more regional than a local scale.

Accumulation of muds and metals in the Hudson River estuary turbidity maximum

1998 ◽  
Vol 34 (2-3) ◽  
pp. 214-222 ◽  
Author(s):  
M. G. Menon ◽  
R. J. Gibbs ◽  
A. Phillips
Keyword(s):  
River Estuary ◽  
Hudson River ◽  
Turbidity Maximum ◽  
Hudson River Estuary

Hudson River Fishes and their Environment

2006 ◽  
Keyword(s):  
Striped Bass ◽  
River Estuary ◽  
Circulation Model ◽  
Hudson River ◽  
Hudson River Estuary ◽  
Freshwater Flow ◽  
East River ◽  
Particle Tracking Model ◽  
Tracking Model ◽  
Neutrally Buoyant

<em>Abstract.</em>—Our objectives were to determine if striped bass <em>Morone saxatilis </em>larvae were present in the East River and if so, could they have come from the Hudson River. To meet the first objective, we examined entrainment data collected at the Charles Poletti Power Plant (Poletti) during the years 1999 through 2002. To meet the second objective, we examined the simulated release of 168,000 neutrally buoyant, passive particles in the lower Hudson River Estuary, using a particle-tracking model that was linked to an estuarine circulation model. We also compared the abundance of striped bass post-yolk-sac larvae (PYSL) collected in the East River at Poletti with the abundance of striped bass PYSL collected in the Battery region of the lower Hudson River Estuary and the abundance of striped bass PYSL in the Battery region with freshwater flow in the estuary. Striped bass PYSL were collected by entrainment sampling in the East River at Poletti every year from 1999 through 2002. The striped bass PYSL in the East River probably came from the Hudson River Estuary because the median probability that neutrally buoyant, passive particles would be transported from the lower Hudson River Estuary to the upper East River and western Long Island Sound was 0.12, with a median transport time of 2 d, and because the mean density of striped bass PYSL was highest at Poletti and in the Battery region during the same year. The abundance of striped bass PYSL in the Battery region was higher when freshwater flow during May and early June was higher.

Fisheries of the Hudson River Estuary

2010 ◽  
pp. 189-204 ◽  
Author(s):  
Karin E. Limburg ◽  
Kathryn A. Hattala ◽  
Andrew W. Kahnle ◽  
John R. Waldman
Keyword(s):  
River Estuary ◽  
Hudson River ◽  
Hudson River Estuary

Benthic Habitat Mapping in the Hudson River Estuary

2010 ◽  
pp. 51-64 ◽  
Author(s):  
Robin E. Bell ◽  
Roger D. Flood ◽  
Suzanne Carbotte ◽  
William B. F. Ryan ◽  
Cecilia McHugh ◽  
...  
Keyword(s):  
River Estuary ◽  
Hudson River ◽  
Habitat Mapping ◽  
Hudson River Estuary ◽  
Benthic Habitat
Sign in / Sign up

Export Citation Format

Share Document