Navigation Links
Gray seals consume as much fish as the fishing industry catches
Date:4/2/2012

The grey seals in the Baltic Sea compete for fish with the fishing industry. The seals locally eat about the same quantities of cod, common whitefish, salmon, sea trout and eel as those taken by fishermen. This is the conclusion from research carried out at the University of Gothenburg, Sweden.

Competing with the fishing industry

The grey seals in the Baltic Sea eat largely the same species and the same sizes of fish as those taken by the fishing industry. So even if the amount of fish eaten by seals is small relative to the total amount of fish caught in the Baltic Sea, the seals' dietary habits may have a major impact on the local availability of fish in the areas where they are common.

"If you compare the estimated consumption of fish by grey seals in their main range in Sweden, which is north of the Kalmar Sound, it is of the same order of magnitude as the total catch taken by Swedish professional and leisure fishermen in the same area", says scientist Karl Lundstrm.

Increasing population of seals

The grey seal was common at the beginning of the 20th century, but was hard hit by hunting and by environmental toxins, and only a remnant remained in the 1970s. However, the seal population has grown continuously since the middle of the 1980s, and this has led conflicts with the fishing industry.

"The conflict has mainly centred on the way in which seals eat from and destroy fishing gear, but as the number of seals has increased the possible competition for food resources has come into focus", says Karl Lundstrm.

Study of dietary habits

The scientists have studied the dietary habits of the seals in order to understand the role they play on the ecosystem, and how they influence the surroundings. This has been done not only by investigating prey remains in the digestive tracts of the seals but also by analysing the composition of fatty acids in their blubber. The fatty acid c
'/>"/>

Contact: Karl Lundstrm
karl.lundstrom@slu.se
46-104-784-138
University of Gothenburg
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Mercury pollution causes immune damage to harbor seals
2. NTU seals global partnerships on environmental sciences R&D
3. Fossil evidence of missing link in the origin of seals, sea lions, walruses found in Canadian Arctic
4. Seals quickly respond to gain and loss of habitat under climate change
5. Harbor seals whiskers as good at detecting fish as echolocating dolphins
6. High-tech software, umanned planes allow scientists to keep tabs on Arctic seals
7. NOAA scientists find killer whales in Antarctic waters prefer weddell seals over other prey
8. Seals sense shapes using their whiskers to feel wakes
9. Seals show different levels of parenting skills
10. New study illustrates the physics behind great white shark attacks on seals
11. Harp seals on thin ice after 32 years of warming
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Gray seals consume as much fish as the fishing industry catches
(Date:11/21/2014)... JOSE, Calif. , Nov. 20, 2014   ... global leader in microcontroller (MCU) and touch technology solutions, ... digital temperature sensors with the widest V cc ... delivers higher temperature accuracy and faster I 2 C ... registers and serial EEPROM memory making them ideal for ...
(Date:11/18/2014)... Md. , Nov. 17, 2014 The Parenteral ... and U.S. regulatory agencies will speak and at least seven ... Metrics Conference at the Omni Shoreham Hotel in ... pleased once again to have significant support from the regulatory ... Europe in our effort to help ...
(Date:11/12/2014)... Fla. , Nov. 12, 2014 Crossmatch™, ... today that its U.are.U ® fingerprint readers have ... chain in Central Mexico . The ... 2014 to eliminate payroll issues caused by employees clocking ... installing the U.are.U fingerprint readers, Montparnasse relied on paper ...
Breaking Biology News(10 mins):Atmel Launches Industry's First Wide-V(cc) Low-Power Temperature Sensor Family 2Atmel Launches Industry's First Wide-V(cc) Low-Power Temperature Sensor Family 3Atmel Launches Industry's First Wide-V(cc) Low-Power Temperature Sensor Family 4FDA's Janet Woodcock, EMA's Emer Cooke Headline PDA Quality Metrics Conference 2Montparnasse Pasteleria Achieves Time and Attendance Transparency with Crossmatch U.are.U Fingerprint Readers 2
... 1:00 p.m. ET) Research published in Nature Chemical Biology ... pathway, termed necroptosis, all target and inhibit RIP1 kinase, ... by trauma such as a heart attack or stroke, ... damage contributing to death or long-term disability. The findings ...
... nuts included in a heart healthy diet reduced low-density ... with qualified health claims, according to researchers. "We looked ... in the health claim for tree nuts, while other ... heart healthy diet," says Dr. Amy E. Griel, a ...
... the mid-1970s, Glenn Shaw of the Geophysical Institute at ... of Arctic haze after collecting aerosol samples from Barrow, ... contain relatively pure air due to its remote locale ... Shaws data indicated there was a murky cloud of ...
Cached Biology News:Stopping unwanted cell death: Implications for drug discovery 2Stopping unwanted cell death: Implications for drug discovery 3Macadamia nuts can be included in heart healthy diet 2Atmospheric scientists gear up for collaborative airborne campaigns 2
(Date:11/26/2014)... 2014 Whitehouse Laboratories is pleased ... Morris County (New Jersey) Chamber of Commerce as ... business organization in the North Jersey area, offers ... some key clients in the pharmaceutical and biotechnology ... area. Membership enables Whitehouse Laboratories a higher level ...
(Date:11/26/2014)... The Pittcon marketing department is pleased to announce ... app, Pittcon 2015 . The ... for iOS and Android devices and the Kindle Fire, ... after the event. It acts as an all-inclusive real-time ... Conferee Networking sessions and short courses. , The Pittcon ...
(Date:11/26/2014)... November 26, 2014 CURE™ magazine ... reception on December 5, 2014, in San Francisco prior ... MPN Heroes event will honor clinicians, caregivers, and advocates ... myeloproliferative neoplasms (MPNs). , Special guest speaker Charles ... family's cancer journey at the reception. Over a ...
(Date:11/26/2014)... -- Theravalues Corporation annuncia con orgoglio il lancio di ... Hi Europe 2014 (dal 2 al 4 dicembre, ... curcumina con la maggiore biodisponibilità di sempre, con una ... dalle norme europee. La curcumina è un ... Curcuma longa ) che è stata associata con attività ...
Breaking Biology Technology:Whitehouse Laboratories Joins Morris County Chamber of Commerce 2Whitehouse Laboratories Joins Morris County Chamber of Commerce 3Pittcon Releases 2015 Mobile App 2CURE Magazine and Incyte to Honor MPN Heroes 2CURE Magazine and Incyte to Honor MPN Heroes 3CURE Magazine and Incyte to Honor MPN Heroes 4La curcumina con la maggiore biodisponibilità di sempre farà il suo debutto in Europa 2La curcumina con la maggiore biodisponibilità di sempre farà il suo debutto in Europa 3
... developed a device platform that combines electronic components for ... an ultrathin skin-like patch that mounts directly onto the ... temporary tattoo. Led by researcher John A. Rogers, ... University of Illinois, the researchers described their novel skin-mounted ...
... Neb., Aug. 11, 2011 Transgenomic, Inc. (OTC/BB: TBIO) today ... June 30, 2011 and provided a business update. Second ... were $7.7 million, an increase of 50 percent compared with ... was $4.6 million or 59 percent of net sales, compared ...
... Inc. (Nasdaq: GNVC ) today announced that its ... Rights Plan through the adoption of a new Rights Agreement. ... September 7, 2011, which is the date that GenVec,s existing ... was adopted in connection with the expiration of the existing ...
Cached Biology Technology:Smart skin: Electronics that stick and stretch like a temporary tattoo 2Smart skin: Electronics that stick and stretch like a temporary tattoo 3Transgenomic Reports Second Quarter Financial Results 2Transgenomic Reports Second Quarter Financial Results 3Transgenomic Reports Second Quarter Financial Results 4Transgenomic Reports Second Quarter Financial Results 5Transgenomic Reports Second Quarter Financial Results 6Transgenomic Reports Second Quarter Financial Results 7Transgenomic Reports Second Quarter Financial Results 8Transgenomic Reports Second Quarter Financial Results 9GenVec Renews Stockholder Rights Plan 2GenVec Renews Stockholder Rights Plan 3
... the gap between the 500 l and ... the speed of the classic Vivaspin products ... for superior recoveries from very dilute solutions. ... Cellulose Triacetate membranes, Vivaspin 2 offers the ...
... (eIF4E-binding protein II) is involved in translation ... kidney. PHAS proteins bind to eIF-4E, the ... capped mRNA in vitro and in cells. ... of PHAS/eIF-4E complexes. This allows eIF-4E to ...
Goat polyclonal to Lipocalin 2...
... (VMAT2). An antibody made to the C-terminal ... ~55 kDa in postnuclear supernatants of CHO ... type cells (2). Some additional bands, both ... detected and remain unaffected by the inclusion ...
Biology Products: