Pictures from Google Image Search

dorsal fin

A Dictionary of Zoology | 1999 | | © A Dictionary of Zoology 1999, originally published by Oxford University Press 1999. (Hide copyright information) Copyright

dorsal fin The unpaired fin located on the back (dorsal surface) of both bony fish and sharks. It may be single and soft-rayed, as in trout, or double with the anterior dorsal fin supported by fin spines, as in perch. In some species (e.g. eels) the dorsal fin is confluent with the tail fin.

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

MICHAEL ALLABY. "dorsal fin." A Dictionary of Zoology. 1999. Encyclopedia.com. 22 Nov. 2009 <http://www.encyclopedia.com>.

MICHAEL ALLABY. "dorsal fin." A Dictionary of Zoology. 1999. Encyclopedia.com. (November 22, 2009). http://www.encyclopedia.com/doc/1O8-dorsalfin.html

MICHAEL ALLABY. "dorsal fin." A Dictionary of Zoology. 1999. Retrieved November 22, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O8-dorsalfin.html

Learn more about citation styles

Related newspaper, magazine, and trade journal articles from HighBeam Research

(Including press releases, facts, information, and biographies)

Declinations can boost HCW flu vaccine rates.
Newspaper article from: Hospital Employee Health; 6/1/2008; 700+ words ; Declinations can boost HCW...that includes declination statements can...rates and to use declination statements...push-back from declinations? However, the...rates by using declination statements combined...
DECLINATION TO PROSECUTE CRIME IN INDIAN COUNTRY:THOMAS B. HEFFELFINGER
Transcript from: Congressional Testimony; 9/18/2008; 700+ words ; ...government the reason for a declination. It will also protect...anonymously collect statistics on declinations and the reasons for such declinations. Such statistics can be...support the requirement for declination reports, I must caution...
Pushing flu shot declination statements irks some HCWs.(health care workers)
Newspaper article from: Hospital Employee Health; 6/1/2007; 700+ words ; Pushing flu shot declination statements irks some HCWs...workers to sign mandatory declination statements. But declinations themselves may put a negative...have called for the use of declination statements to improve health...
CDC: Use declination statements on flu vaccine.(Excerpt)
Newspaper article from: Hospital Employee Health; 9/1/2007; 700+ words ; CDC: Use declination statements on flu vaccine...care workers to sign declination statements if they don...hospitals to "obtain signed declinations from personnel who decline...recommending the use of declination statements. For example...
DECLINATION TO PROSECUTE CRIME IN INDIAN COUNTRY:M. BRENT LEONHARD
Transcript from: Congressional Testimony; 9/18/2008; 700+ words ; ...for such high rates of declinations ranging from inadequate...obtain accurate data on declination rates and the reasons for those declinations. And second, the bill...publication and disclosure of declination reports under the bill...
Hospitals should move to declination statements.
Newspaper article from: Hospital Employee Health; 9/1/2005; 700+ words ; ...recommend the use of declination statements, along...specify the wording of declinations. The Joint Commission...and survey methods. Declination statements have been...implemented a policy of declination statements last year...Wake Forest. The declinations are patterned after...
JCAHO adds flu standard with no declination statements required.(Joint Commission on Accreditation of Healthcare Organizations)
Newspaper article from: Hospital Employee Health; 8/1/2006; 700+ words ; ...standard with no declination statements required Declinations seen as obstacle...them to collect declination statements from...paper trail of declinations." JCAHO provided...vaccination is declination by health care...
Declination forms sticking point in flu vaccine debate.
Newspaper article from: Occupational Health Management; 12/1/2005; 700+ words ; Declination forms sticking point in flu vaccine...refuse the shot should be made to sign declination forms. Those who oppose mandatory shots...voluntary vaccinations, say requiring a declination form in lieu of a vigorous education...
DECLINATION TO PROSECUTE CRIME IN INDIAN COUNTRY:DREW H. WRIGLEY
Transcript from: Congressional Testimony; 9/18/2008; 700+ words ; ...are here today to discuss declination reports. This is a discussion...that public reporting on declinations is not the best method to...this aim. The discussion of declinations has been distilled down to...issue is the reporting of the declination of an individual case by...
How to cut LTC declinations on older applicants. (Underwritting).(long term care insurance)(Brief Article)
Magazine article from: National Underwriter Life & Health-Financial Services Edition; 1/21/2002; ; 700+ words ; ...very smart move. The declination rate for applications...See chart for declination rates at one company...factors can account for declinations. In some cases...correlation of age and declination rate. Studying them...a leading cause of declinations, because: the applicant...

Related entries from encyclopedias, dictionaries, and thesauruses

declination axis
Book article from: A Dictionary of Astronomy declination axis The axis of an equatorial mounting around which a telescope can be moved in declination. The declination axis is at right angles to the polar axis .
declination
Book article from: The Columbia Encyclopedia, Sixth Edition declination in astronomy, one of the coordinates in the equatorial coordinate system . The declination of a celestial body is its angular distance north or south of the celestial equator measured along its hour circle .
Celestial sphere: The apparent motions of the Sun, Moon, planets, and stars
Encyclopedia entry from: The Gale Encyclopedia of Science ...arcseconds. In 1 ° of declination, there are 60 arcminutes...sphere can be specified by declination and right ascension coordinates...s surface, the extended declination line crosses the observer...agreement and customary usage, declinations north of the celestial equator...
Compass
Book article from: How Products Are Made ...feature found on many compasses is automatic declination adjustment. Declination, also known as variance, is the difference...with its North and South poles. The amount of declination varies from place to place on Earth's surface...
Celestial Sphere: The Apparent Motions of the Sun, Moon, Planets, and Stars
Book article from: World of Earth Science ...xB0; celestial sphere. Declination is further divided into arcminutes...arcseconds. In 1 ° of declination, there are 60 arcminutes...s surface, the extended declination line crosses the observer...agreement and customary usage, declinations north of the celestial equator...

Find thousands of answers for hundreds of subjects at Smart QandA .

All answers verified by trusted sources at Encyclopedia.com

Try Smart QandA now!

For students and teachers!

Encyclopedia.com provides students and teachers facts, information, and biographies from verified, citable sources, including:

Encyclopedia.com provides students and teachers facts, information, and biographies from verified, citable sources, including: