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
Spain
Sep 18, 21:20 (GMT + 9):
Govt opens public consultation to regulate bigeye and yellowfin fisheries in the Atlantic
Japan
Sep 18, 21:00 (GMT + 9):
Oficial data imports of frozen bluefin tuna: Prices and markets
Norway
Sep 18, 20:40 (GMT + 9):
Fish Pool Salmon Price Status Report for week 38
Spain
Sep 18, 07:00 (GMT + 9):
Barcelona will host of the Global Seafood Expo in 2021
Chile
Sep 18, 06:30 (GMT + 9):
Bill to protect brown seaweed passes to the Senate
Denmark
Sep 18, 06:00 (GMT + 9):
MSC mackerel certificates will not be reinstated, despite healthy stock
Argentina
Sep 18, 05:40 (GMT + 9):
Galician President proposes creation of regional fisheries organization in the Southeast Atlantic
United States
Sep 18, 05:20 (GMT + 9):
Sea Shepherd to launch new campaign against IUU fishing in the tropical Eastern Pacific
Canada
Sep 17, 22:50 (GMT + 9):
Technological advances allow fleets to double fishing capacity
Ecuador
Sep 17, 22:50 (GMT + 9):
China lifts temporary suspension of shrimp exports from Omarsa
Indonesia
Sep 17, 22:40 (GMT + 9):
Investors prioritising technology and aquaculture goes digital (Video)
Chile
Sep 17, 21:50 (GMT + 9):
Salmon exports reach new record
Peru
Sep 17, 20:00 (GMT + 9):
Peruvian fisheries industry tries to devote more to canned food production
Worldwide
Sep 17, 19:00 (GMT + 9):
IN BRIEF - Robotic fish predator strikes fear into invasive species
Canada
Sep 17, 19:00 (GMT + 9):
IN BRIEF - Aquaculture industry is headed for a sea change



Lenguaje
FEATURED EVENTS
  
TOP STORIES
Weekly movements of fishmeal and fish oil (Norway, China, Peru) Week 36-37
Worldwide Through week 36,  550,311 tonnes of fish were destined for reduction at an average price of NOK 2.85/kg, down 19% on those destined for such purpose during the same period in the previous year. ...
Jack mackerel exports register exponential growth
Peru Jack mackerel exports recorded an exponential growth in the first half of the year, reaching USD 37.4 million, an increase of 2156% over the same period of 2018 (USD 1.6 million), reports the Associat...
More than 20 illegal tons of hake sezed in nine Peruvian regions
Peru The General Directorate of Supervision, Supervision and Sanction of the Ministry of Production (PRODUCE) reportes that between January and September 2019 it has carried out 3114 inspections, seizing m...
More than 3,500 sales points join the fresh Norwegian 'fogonero' (Saithe - Pollachius virens) campaign
Spain Last year 700 tons of this white fish were sold in Spain with quality assurance of Norwegian Sea products The fresh Norwegian saithe is a very versatile, healthy, tasty option and at a ...
 
Maruha Nichiro Corporation
Nichirei Corporation - Headquarters
Pesquera El Golfo S.A.
Ventisqueros - Productos del Mar Ventisqueros S.A
Wärtsilä Corporation - Wartsila Group Headquarters
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. - Group Headquarters
I&J - Irvin & Johnson Holding Company (Pty) Ltd.
AquaChile S.A. - Group Headquarters
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
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)
Mowi ASA (formerly 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 - Headquarters
Cooke Inc. - Group Headquarters
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
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
SeaChoice
National Geographic Society
AmazonFresh, LLC - AmazonFresh

Copyright 1995 - 2019 Fish Info & Services Co.Ltd| All Rights Reserved.   DISCLAIMER