Navigation Links
Annual survey shows high numbers of seed scallops on Georges Bank, low numbers in Mid-Atlantic
Date:8/17/2009

ship operated by the University of Delaware. Prior to 2008, the annual surveys were conducted by the NOAA ship ALBATROSS IV, which was retired in late 2008 after 45 years of service.

The scallop survey uses a random stratified design, in which the ocean is divided into zones, or strata, of similar depth and habitat, and then dredge and camera samples are taken randomly within these zones. This is similar to the sampling design used in political polls to achieve a statistically accurate assessment of political views for all U.S.citizens.

Samples are collected using a modified commercial eight-foot sea scallop dredge with a mesh liner to retain the very small seed scallops. At each sampling station, the gear is deployed on the bottom for 15 minutes at an average tow speed of 3.8 knots (just over four miles per hour). Each station covers an area about 4,500 square meters, or about one acre. After each haul, the catch is sorted, counted and measured on deck. Some additional stations are included in the survey to monitor annual recruitment and growth rates. HabCam was deployed at many of the same locations, taking high resolution digital still images of the bottom at a rate of more than one per second. The images can then be formed into a mosaic.

In 2007 and 2008, the HabCam survey images also revealed the occurrence and distribution of the invasive tunicate species Didemnum, first reported on Georges Bank in 2003. Didemnum smothers many bottom-dwelling organisms, and its acidic "skin" can prevent baby scallops from settling on the ocean floor.

"We saw it in patches in only one area we surveyed, but it is a real concern," Hart said. "Physical samples came up on one of the dredges, so biologists will have some specimens to study."

Atlantic sea scallops (Placopecten magellanicus) are distributed in the Northwest Atlantic from Cape Hatteras to Newfoundland and also occur in the Gulf of St. Lawrence. They live on the oc
'/>"/>

Contact: Shelley Dawicki
Shelley.Dawicki@noaa.gov
508-495-2378
NOAA National Marine Fisheries Service
Source:Eurekalert

Page: 1 2 3 4

Related biology news :

1. Planetary geoscience, paleontology, and more at GSA Annual Meeting in Denver next month
2. CIC Again Named to Software Magazines Annual Prestigious Software 500 List
3. Colony collapse disorder symposium added to ESA Annual Meeting
4. Food and environmental sustainability focus of ASA-CSSA-SSSA Annual Meetings
5. Canadian Society of Exercise Physiology Annual Scientific Conference
6. Fourth Annual International Conference on Cell Therapy for Cardiovascular Diseases
7. New studies on schizophrenia, depression, trauma and autism highlight annual meeting
8. Oceanographer Dennis J. McGillicuddy, Jr. receives 34th annual Rosenstiel Award
9. Cell biologists announce child-care grants for scientist-parents at annual meeting
10. 5th annual Keys bonefish population census results announced
11. 5th Annual World Health Care Congress April 21-23, Washington, D.C.
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/31/2015)... SHENZHEN, China , 31 de julho de 2015 ... Genômica (ICG-10, www.icg-10.org ) será realizada pela BGI de ... China . A conferência está ... inauguração em 2006, a ICG se tornou uma das ... e um dos encontros científicos mais dinâmicos, entusiastas e ...
(Date:7/31/2015)... 2015 La 10 th International Conference on ... BGI del 22 al 25 de octubre de 2015 en ... la conferencia celebra su décimo aniversario. Desde su inauguración en ... las reuniones anuales más influyentes del mundo en el campo ... entusiastas y mejores a nivel científico. ICG-10 ...
(Date:7/31/2015)... --NXT-ID, Inc. (NASDAQ: NXTD ) ("NXT-ID" or the ... mobile commerce market and creator of the Wocket® smart ... for ELECTRONIC CRYPTO-CURRENCY MANAGEMENT METHOD AND SYSTEM ... crypto-currencies such as Bitcoin into the consumer market of ... manage all payments.  The technology manages ...
Breaking Biology News(10 mins):A 10a. Conferência Internacional sobre Genômica (ICG-10) será em outubro 2A 10a. Conferência Internacional sobre Genômica (ICG-10) será em outubro 3La 10th International Conference on Genomics (ICG-10) se llevará a cabo en octubre 2La 10th International Conference on Genomics (ICG-10) se llevará a cabo en octubre 3NXT-ID Patents Electronic Crypto-Currency Management Technology 2NXT-ID Patents Electronic Crypto-Currency Management Technology 3NXT-ID Patents Electronic Crypto-Currency Management Technology 4
... Gee MD MPH FACOG, Assistant Professor, LSU Health Sciences ... has been chosen to receive a Recognition of Distinction ... from the Association of Maternal & Child Health (MCH) ... contributions to the health of women, children, and families ...
... (ABC) has chosen Andreas Rmpp (38) and Sabine Guenther ... Rmpp and Guenther are the lead authors of a paper ... by 1,000 euros, was created by Springer to honor exceptional ... Best Paper Award has been given since 2005. Mass ...
... Medical Center in Salt Lake City is part of ... new evidence-based clinical guidelines used by physicians worldwide for ... the most common cardiovascular diseases in the United States. ... Clinic at Intermountain Medical Center, says the new guidelines ...
Cached Biology News:LSUHSC's Gee honored for improving health of women, children and families 2ABC Best Paper Award 2011 goes to Andreas Römpp and Sabine Guenther 2New guidelines developed for improved DVT diagnosis 2
(Date:8/27/2015)... ... 27, 2015 , ... Proove Biosciences, a commercial and ... of genetics and hypertension at the International Academy of Cardiology Annual ... Canada. The event, which boasts an extensive overview of the latest research developments ...
(Date:8/26/2015)... , ... August 26, 2015 , ... ... increasing its investment in the development and manufacture of highly valued cardiac markers ... company’s scientific team's extensive expertise with protein chemistry has led to the development ...
(Date:8/26/2015)... and BEIJING , August 26, 2015 ... Impressive Acheivements  DiaCardio wins 1 st place  ... The competition, led in Israel by venture ... startups from countries including the US, China , ... Latin America .  Impressive achievement for ...
(Date:8/26/2015)... ... ... PRC Clinical, a Clinical Trial Management Expert CRO, will be ... California. The Clinical Trial Management Expert CRO seeks to introduce more California-based sponsors to ... , Stem Cell Meeting on the Mesa on October 7-9 in ...
Breaking Biology Technology:Proove Biosciences Presents Ground-Breaking Data on Genetics and Heart Disease at 20th World Congress on Heart Disease 2Proove Biosciences Presents Ground-Breaking Data on Genetics and Heart Disease at 20th World Congress on Heart Disease 3Lee Biosolutions Announces Increased Investment in the Development and Manufacturing of Biomarkers Used in Early Detection Of Heart Disease 2Israeli Startup Takes First Place at Shengjing Global Innovation Awards 2015 2Israeli Startup Takes First Place at Shengjing Global Innovation Awards 2015 3Israeli Startup Takes First Place at Shengjing Global Innovation Awards 2015 4Israeli Startup Takes First Place at Shengjing Global Innovation Awards 2015 5Israeli Startup Takes First Place at Shengjing Global Innovation Awards 2015 6PRC Clinical To Attend Major Industry Conferences And Meet Sponsor Companies In The San Diego Biotech Hub 2PRC Clinical To Attend Major Industry Conferences And Meet Sponsor Companies In The San Diego Biotech Hub 3
... - The Department of Commerce (Commerce) has qualified five ... Angel Investor and Venture Fund Tax Credit Programs. , ... crucial investments, we are helping to turn these great ... , ,The Angel Investor and Venture Fund Tax ...
... prices. Always low prices. When it comes to consumer goods, ... selection and fanatical commitment to low prices, Wal-Mart is the ... Wal-Mart is the place to get it. , ,The company ... unfavorable attention lately. Union and activist groups have successfully derailed ...
... president of an international corporation used to take a lifetime ... PC, strong entrepreneurial spirit, and in less than 30 days. ... professionals. It's estimated that 80 percent of businesses fail within ... type, you might be discouraged by such an estimate. ...
Cached Biology Technology:Five technology companies qualify for investor tax credits 2Wal-Mart: How low can you go? 2Wal-Mart: How low can you go? 3Wal-Mart: How low can you go? 430 days to success: Three simple steps to create your own international startup 230 days to success: Three simple steps to create your own international startup 330 days to success: Three simple steps to create your own international startup 430 days to success: Three simple steps to create your own international startup 5
GRADIENT MAKER, 30 ML, 1 EA. Category: Protein Vertical Instruments....
... G. Butcher (1998). • The major histocompatibility ... in the immunology area. There is great ... and in their function as antigen-presenting molecules. ... the prospect of tackling biochemical and genetic ...
DALT GRADIENT MAKER,230V, 1 EA. Category: 2D DALT Systems....
actin from rabbit muscle Cell Biology Cytoskeletal Probes Actin and Actin Probes...
Biology Products: