Volumes

by publication dates
May 2019 (1)
April 2019 (1)
March 2019 (1)
January 2019 (1)
January 2018 (1)
December 2017 (1)
October 2017 (1)
July 2017 (1)
December 2016 (2)
November 2016 (1)
October 2016 (1)
February 2016 (1)
December 2015 (4)
September 2015 (2)
July 2015 (1)
March 2015 (1)
December 2014 (3)
July 2014 (2)
May 2014 (1)
December 2013 (4)
October 2013 (1)
March 2013 (1)
January 2013 (1)
December 2012 (6)
October 2012 (2)
July 2012 (1)
January 2012 (1)
December 2011 (3)
November 2011 (1)
October 2011 (1)
September 2011 (1)
August 2011 (1)
May 2011 (1)
March 2011 (1)
February 2011 (1)
August 2010 (1)
June 2010 (2)
May 2010 (2)
April 2010 (1)
March 2010 (2)
February 2010 (2)
December 2009 (1)
October 2009 (6)
September 2009 (2)
August 2009 (2)
July 2009 (1)
April 2009 (1)
February 2009 (7)
January 2009 (5)
December 2008 (1)
October 2008 (1)
September 2008 (4)
August 2008 (4)
June 2008 (1)
May 2008 (1)
April 2008 (1)
February 2008 (4)
January 2008 (3)
December 2007 (5)
November 2007 (2)
August 2007 (1)
June 2007 (3)
May 2007 (4)
March 2007 (3)
February 2007 (1)
January 2007 (1)
November 2006 (1)
October 2006 (1)
September 2006 (3)
June 2006 (1)
May 2006 (1)
April 2006 (2)
February 2006 (2)
January 2006 (2)
December 2005 (7)
November 2005 (1)
October 2005 (5)
September 2005 (1)
June 2005 (1)
April 2005 (3)
March 2005 (16)
February 2005 (4)
January 2005 (6)
December 2004 (2)
November 2004 (7)
October 2004 (1)
September 2004 (12)
December 2003 (4)
October 2003 (37)
March 2003 (13)
December 2002 (7)
December 2001 (7)
December 2000 (34)
October 1999 (21)
November 1998 (6)
October 1998 (18)
December 1997 (28)
April 1997 (7)
October 1996 (13)
September 1996 (1)
April 1996 (9)
October 1994 (8)
July 1994 (9)
December 1993 (1)
December 1992 (26)
January 1992 (9)
February 1991 (9)
December 1990 (3)
December 1989 (8)
October 1989 (9)
December 1988 (9)
December 1987 (11)
December 1986 (11)
December 1985 (10)
June 1985 (11)
November 1984 (12)
January 1984 (18)
July 1983 (1)
December 1982 (12)
May 1982 (9)
November 1981 (12)
November 1980 (12)


JNAFS

01

D. J. Power and I-Hsun Ni

Department of Biology, Memorial University of Newfoundland
St. John's, Newfoundland, Canada A1C 557

Source - Journal of Northwest Atlantic Fishery Science, Volume 6(1): 1-7
ISSN-0250-7408

Abstract

Morphometric characters were investigated to provide criteria, in addition to morphological differences that are presently employed, for species identification of Atlantic redfishes (genus Sebastes). The study involved the analysis of morphometric data for a sample of redfish which was collected in the Labrador-Newfoundland region in 1958 and initially separated into two groups (Sebastes marinus and beaked redfish) on the basis of color, eye size and beak shape. Standard length was used as a covariate to adjust the morphometric data because S. marinus were on the average larger than beaked redfishes. Discriminant analyses of (a) 17 morphometric characters resulted in an 11 variable discriminant function where 65% of the variability was explained by the groups, (b) the two traditional discriminators (length of symphyseal tubercle and width of orbit) resulted in a function where 56% of the variability was explained by the groups, and (c) the remaining 15 morphometric characters resulted in a 9-variable function where 58% of the variability was explained by the groups. The results demonstrated good (87-90%) separation of golden redfish (S. marinus) and beaked redfishes (S. mentella and S. fasciatus). Length of symphyseal tubercle (beak), orbit width, body depth at the position of the pectoral fins, interorbital width, depth of caudal peduncle, and width of pectoral fin base were determined as good morphometric discriminators.

Language - English
Publisher - Northwest Atlantic Fisheries Organization (NAFO), Dartmouth, N.S., Canada
Publication Date - June 1985
Publication Type - Journal Article

Citation
Actions: E-mail | Permalink |

Related Files