Acoustically Measured Distribution and Abundance of Atlantic Menhaden (Brevoortia tyrannus) in a Shallow Estuary in Long Island, NY

Acoustically Measured Distribution and Abundance of Atlantic Menhaden (Brevoortia tyrannus) in a... Atlantic menhaden (Brevoortia tyrannus) is an euryhaline forage fish abundant along the eastern coast of the USA that seasonally migrates between the open ocean and shallow water estuaries. These fish are known for forming large, dense schools and are important prey for piscivorous fish, seabirds. Following several large fish kills in the late spring of 2015 in the western Peconic Estuary in Long Island, New York, we conducted multiple surveys during the spring, summer, and fall using scientific echosounders to quantify menhaden abundance in this region. Acoustic backscatter data were used to estimate numeric abundance and biomass of menhaden for the western Peconic Estuary. We found that the 2015 fish kills represented between 7 and 18% of the total local population (~ 2.4 million) that were present at the time. Significant changes in target strength distributions during the study suggest that the size classes of menhaden present in the estuary change as fish grow or migrate in and out of the estuary. This study demonstrates that vertical beam active acoustics is a viable method for quantifying forage fish in a very shallow (< 4 m depth) estuary. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Estuaries and Coasts Springer Journals

Acoustically Measured Distribution and Abundance of Atlantic Menhaden (Brevoortia tyrannus) in a Shallow Estuary in Long Island, NY

Loading next page...
 
/lp/springer_journal/acoustically-measured-distribution-and-abundance-of-atlantic-menhaden-uLLWcXNPno
Publisher
Springer Journals
Copyright
Copyright © 2018 by Coastal and Estuarine Research Federation
Subject
Environment; Environment, general; Ecology; Freshwater & Marine Ecology; Environmental Management; Coastal Sciences; Water and Health
ISSN
1559-2723
eISSN
1559-2731
D.O.I.
10.1007/s12237-018-0367-x
Publisher site
See Article on Publisher Site

Abstract

Atlantic menhaden (Brevoortia tyrannus) is an euryhaline forage fish abundant along the eastern coast of the USA that seasonally migrates between the open ocean and shallow water estuaries. These fish are known for forming large, dense schools and are important prey for piscivorous fish, seabirds. Following several large fish kills in the late spring of 2015 in the western Peconic Estuary in Long Island, New York, we conducted multiple surveys during the spring, summer, and fall using scientific echosounders to quantify menhaden abundance in this region. Acoustic backscatter data were used to estimate numeric abundance and biomass of menhaden for the western Peconic Estuary. We found that the 2015 fish kills represented between 7 and 18% of the total local population (~ 2.4 million) that were present at the time. Significant changes in target strength distributions during the study suggest that the size classes of menhaden present in the estuary change as fish grow or migrate in and out of the estuary. This study demonstrates that vertical beam active acoustics is a viable method for quantifying forage fish in a very shallow (< 4 m depth) estuary.

Journal

Estuaries and CoastsSpringer Journals

Published: Jan 30, 2018

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off