Welcome to FIS   Sponsored By
Subscribe to FIS | Register with FIS | Advertise with FIS | Newsletter | About FIS | Contact us
   


White perch, striped bass, blue catfish, and gizzard shad capture. (Photo: Leonard Machut/VIMS)

Striped bass juvenile index falls below average

Click on the flag for more information about United States UNITED STATES
Thursday, October 18, 2012, 22:40 (GMT + 9)

The Maryland Department of Natural Resources (DNR) announced that the 2012 striped bass juvenile index – a measure of striped bass spawning success in Chesapeake Bay – is below the long-term average this year.

“While we expect large variation in striped bass reproduction from year to year and do not view this low value as an imminent problem, we will be carefully monitoring the results of future surveys,” said DNR Fisheries Director Tom O’Connell. “Three consecutive years of poor reproduction would be necessary to trigger mandatory conservation measures.”

This year’s striped bass juvenile index came in at 0.9, the lowest on record. Last year’s survey showed the fourth highest result in the 59-year history of the survey. The long-term average is 12.

Striped bass spawning success can vary dramatically from year to year. Typically, several years of average reproduction are mixed with large and small year-classes.

Environmental conditions such as flow rates and water temperature influence spawning success. The highly successful years of 1989, 1996, and 2001 were followed by below-average years.

Other anadromous species (fish that return to fresh water to spawn), such as white perch, yellow perch, and river herring, also experienced low reproductive success this year, likely due to weather conditions. Similarly, a survey conducted by the Virginia Institute of Marine Science (VIMS) documented poor striped bass spawning success in Virginia’s portion of Chesapeake Bay.



“Generally, warm winters and dry springs are unfavourable conditions for fish that return to freshwater to spawn,” said DNR Striped Bass Survey Director Eric Durell. The survey showed increased reproduction of fish species that spawn in higher salinities or offshore, such as Atlantic croaker and bay anchovies.

During this year’s survey, biologists counted more than 31,000 fish of 54 different species at 22 sites in the four major spawning systems—Choptank, Potomac and Nanticoke rivers, and the Upper Bay. DNR biologists visited each site monthly from July through September, collecting fish samples with two sweeps of a 100-ft beach seine. Juvenile indices are calculated as the average catch of young-of-year fish per sample.

[email protected]
www.fis.com


 Print


Click to know how to advertise in FIS
MORE NEWS
Russian Federation
Apr 21, 02:50 (GMT + 9):
Russian Fishery to set up pollock processing plant in the Russian Far East
Australia
Apr 21, 02:30 (GMT + 9):
South Australian sardine fishery to enter MSC assessment process
Worldwide
Apr 21, 02:00 (GMT + 9):
IN BRIEF - Small changes in rainforests cause big damage to fish ecosystems
Australia
Apr 21, 02:00 (GMT + 9):
Salmon cannery hopes to attract Australian consumers’ interest
Portugal
Apr 21, 01:50 (GMT + 9):
New tuna factory to start operations in Vila Nova de Cerveira
United Kingdom
Apr 21, 01:30 (GMT + 9):
The British encouraged to consume jellyfish
Canada
Apr 21, 01:00 (GMT + 9):
IN BRIEF - BC oyster farmers taking big hit as three farms still closed due to contamination
United Kingdom
Apr 21, 01:00 (GMT + 9):
IN BRIEF - Salmon packs recalled over health concern
Senegal
Apr 21, 01:00 (GMT + 9):
IN BRIEF - A rise in foreign industrial trawlers off the coast of Senegal is causing local fishermen to lose their livelihoods
United States
Apr 21, 01:00 (GMT + 9):
IN BRIEF - Local Shellfish Beds Restricted Due To Pollution
Worldwide
Apr 21, 01:00 (GMT + 9):
IN BRIEF - Annual 5.0% Growth expected for Global Aquaculture Market by 2021
Peru
Apr 21, 00:00 (GMT + 9):
Virtual platform to favour data sharing on fight against IUU fishing
United States
Apr 20, 23:20 (GMT + 9):
Five Alaska seafood businesses to participate in trade mission to China
European Union
Apr 20, 22:50 (GMT + 9):
International high-tech system project could revolutionise fishing industry
Spain
Apr 20, 22:30 (GMT + 9):
Alantra fund acquires Canarian fish producer and distributor



Lenguaje
FEATURED EVENTS
  
TOP STORIES
Satlink favours collaboration between tuna fleets and seismic surveys
Spain A new system based on the exchange of information among vessels jointly developed by the satellite telecommunications company Satlink and the Spanish tuna fleet, introduces a pioneering collaboration among different types of fleets.
Tinned tuna zinc could harm bowel metabolism
United States New research carried out by Binghamton University, New York, suggests that tinned tuna contains up to 100 times more zinc than is safe, which could seriously affect people's bowel nutrient absorption.
Squid season records better catches and prices
Argentina Until April 4, a total of 85,474 tonnes of Illex argentinus squid had been landed in Argentine ports, of which 42,590 tonnes were unloaded in Mar del Plata (Buenos Aires).
Fishery authority rejects Marine Harvest plan to farm salmon on vessel
Norway The Norwegian Fisheries Directorate has rejected Marine Harvest Norway’s application for six development licenses to produce salmon on a bulk vessel.
 
Maruha Nichiro Corporation
Nichirei Corporation -Headquarter-
Pesquera El Golfo S.A.
Ventisqueros - Productos del Mar Ventisqueros S.A
Wärtsilä Corporation -Wartsila Group Headquarter-
ITOCHU Corporation -Headquarter-
BAADER - Nordischer Maschinenbau Rud. Baader GmbH+Co.KG (Head Office)
Inmarsat plc - Global Headquarters
Marks & Spencer
Tesco PLC (Supermarket) - Headquarters
Sea Harvest Corporation (PTY) Ltd.
I&J - Irvin & Johnson Holding Company (Pty) Ltd.
Blue Continent Products (Pty) Ltd - (Oceana Group Limited)
Pesquera San Jose S.A.
Nutreco N.V. - Head Office
CNFC China National Fisheries Corporation - Group Headquarters
W. van der Zwan & Zn. B.V.
SMMI - Sunderland Marine Mutual Insurance Co., Ltd. - Headquarters
Icicle Seafoods Inc. -Headquarter-
Starkist Seafood Co. - Headquearters
Trident Seafoods Corp.
American Seafoods Group LLC - Head Office
Marel - Group Headquarters
SalMar ASA - Group Headquarters
Sajo Industries Co., Ltd
Hansung Enterprise Co.,Ltd.
BIM - Irish Sea Fisheries Board (An Bord Iascaigh Mhara)
CEFAS - Centre for Environment, Fisheries & Aquaculture Science
COPEINCA ASA - Corporacion Pesquera Inca S.A.C.
Chun Cheng Fishery Enterprise Pte Ltd.
VASEP - Vietnam Association of Seafood Exporters & Producers
Gomes da Costa
Furuno Electric Co., Ltd. (Headquarters)
NISSUI - Nippon Suisan Kaisha, Ltd. - Group Headquarters
FAO -Food and Agriculture Organization- Fisheries and Aquaculture Department (Headquarter)
Hagoromo Foods Co., Ltd.
Koden Electronics Co., Ltd. (Headquarters)
A.P. Møller - Maersk A/S - Headquarters
BVQI - Bureau Veritas Quality International (Head Office)
UPS - United Parcel Service, Inc. - Headquarters
Hamburg Süd Group - (Headquearters)
Armadora Pereira S.A. - Group Headquarters
NOAA - National Oceanic and Atmospheric Administration (Headquarters)
Omega Protein Corporation -Headquarter-
Marona S.A.
Marine Harvest ASA - Headquarters
Marubeni Europe Plc -UK-
Findus Ltd
Icom Inc. (Headquarter)
WWF Centroamerica
Oceana Group Limited
The David and Lucile Packard Foundation
Ajinomoto Co., Inc. - Headquarters
Friosur S.A. - Headquarters
Cargill, Incorporated - Global Headquarters
Benihana Inc.
Leardini Pescados Ltda
Mitsubishi Corporation Marine Products Depts. D.Team
CJ Corporation  - Group Headquarters
Greenpeace International - The Netherlands | Headquarters
David Suzuki Foundation
Fisheries and Oceans Canada -Communications Branch-
Mitsui & Co.,Ltd - Headquarters
NOREBO Group (former Ocean Trawlers Group)
Natori Co., Ltd.
Carrefour Supermarket - Headquarters
FedEx Corporation -Headquarter-
AKBM - Aker BioMarine ASA
Seafood Choices Alliance -Headquarter-
Austevoll Seafood ASA
Walmart / Wal-Mart Stores, Inc. (Supermarket) -Headquarter-
New Japan Radio Co.Ltd (JRC) -Head Office-
Gulfstream JSC
INVE Group - Head Office
Marine Stewardship Council - MSC Worldwide Headquarters
Royal Dutch Shell plc (Headquarter)
Genki Sushi Co.,Ltd -Headquarter-
Iceland Pelagic ehf
AXA Assistance Argentina S.A.
Caterpillar Inc. - Headquarters
Tiger Brands Limited
Morpol ASA - Group Headquarters
SeaChoice
National Geographic Society
AmazonFresh, LLC - AmazonFresh

Copyright 1995 - 2018 Fish Info & Services Co.Ltd| All Rights Reserved.   DISCLAIMER