Sex determination of fetal and neonate skeletons by means of discriminant analysis

1987 ◽  
Vol 2 (4) ◽  
pp. 347-352 ◽  
Author(s):  
H. Schutkowski
2007 ◽  
Vol 23 (4) ◽  
pp. 211-216 ◽  
Author(s):  
Susana Alarcos ◽  
Carlos De La Cruz ◽  
Elena Solís ◽  
Juliana Valencia ◽  
María Jesús García‐Baquero

1980 ◽  
Vol 37 (2) ◽  
pp. 283-286 ◽  
Author(s):  
M. C. Mercer ◽  
R. K. Misra ◽  
G. V. Hurley

The beak morphometrics of the ommastrephid squid Illex illecebrosus were analyzed as possible criteria for determining sex composition of beak samples taken from predator stomachs. A multivariate analytical procedure was adopted to elucidate the course of discriminant analysis needed in this study. The discriminant functions presented here can be employed usefully in identifying the sex of an unknown individual from either the upper or lower beak morphometrics.Key words: squid, Illex, beak, morphometrics, multivariate, discriminant analysis, sex determination


Bird Study ◽  
2010 ◽  
Vol 57 (3) ◽  
pp. 336-343 ◽  
Author(s):  
Roberto Muriel ◽  
Eva Casado ◽  
Daniel Schmidt ◽  
Cecilia P. Calabuig ◽  
Miguel Ferrer

2014 ◽  
Vol 13 (1) ◽  
pp. 50-59
Author(s):  
A NisreenYasirJasim ◽  
Tahir A. Fahid ◽  
Talib Ahmed Jaayid

2012 ◽  
Vol 3 (1) ◽  
pp. 384-386
Author(s):  
Dr. Sudarshan Gupta ◽  
◽  
Dr. Bhadresh Vaghela ◽  
Dr. Deepak Howale ◽  
Dr. Mehul Tandel

2010 ◽  
Vol 5 (2) ◽  
pp. 59-66
Author(s):  
Kelven Lopes ◽  
Helder Lima de Queiroz

This study examined the traditional knowledge of fishermen at Mamirauá Reserve about sex determination of pirarucus, Arapaima gigas Schinz 1822. We evaluated the criteria used for by fishermen in the sector Jarauá at Mamirauá Reserve for this determination, during the fisheries season, from October to November 2004. We analyzed responses of a group of about 15 fishermen collected in structured interviews regarding 109 individual pirarucus, 65 males and 44 females. From this sample, only 64 fish have their sex correctly predicted by the fishermen. Although the traditional knowledge of local fishermen is a key component of the sustainable fisheries of this species, this knowledge is not functional in all ranges and aspects, as in sex distinction. We found that the local fishermen evaluated are not able to recognize the sex of pirarucus, although some criteria applied for this purpose are consistent with their biology. The rates of correct forecasts for recognition of males and females were similar to those obtained by chance, even when the criteria applied were consistent, as the criterion “coloration”, which was significantly consistent for identification of males. Yet the group of fishermen interviewed in this study apparently did not apply this criterion correctly.


1989 ◽  
Vol 30 (2) ◽  
pp. 155-164 ◽  
Author(s):  
Birthe Avery ◽  
Mette Schmidt

Sign in / Sign up

Export Citation Format

Share Document