Observations on the age and growth of shank (Acanthopagrus latus (Houttuyn, 1782)) from al-Razzazah Lake
From February 2007 to January 2008, monthly samples of shank (Acanthopagrus latus) were taken from three stations at Al-Razzazah lake,by using a range of gill nets and seine nets. A total of 318 fish were taken from all stations. The age data determined from the scales showed that there were eight a...
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Veröffentlicht in: | Ibn Al-Haitham Journal for Pure and Applied Sciences 2010, Vol.23 (1) |
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Format: | Artikel |
Sprache: | ara ; eng |
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Zusammenfassung: | From February 2007 to January 2008, monthly samples of shank (Acanthopagrus
latus) were taken from three stations at Al-Razzazah lake,by using a range of gill nets and
seine nets. A total of 318 fish were taken from all stations. The age data determined from the
scales showed that there were eight age classes present in station 1 and 2 and seven age
classes in station 3. The increment in length of A. latus at the area of study showed a tendency
to decrease with the increase in age after the fourth year of life.
The length- weight relationships of both sexes sp ecimens are expressed by the
following equations:
Log = -1.93 + 2.67 Log ….. for station (1) fish
Log = -2.08 + 2.74 Log …. For station (2) fish
Log = -2.02 + 2.39 Log …. For station (3) fish
It seems from the above equations that the growth of A. latus in the area of study is
allometric. |
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ISSN: | 1609-4042 2521-3407 |