Abstract：
:Sagittal otoliths were used to age the samples of Tilapia mariae collected from a coastal river and an impoundment. Validation of sagittae checks was achieved using both quantitative marginal increment analysis and by tetracycline marking of the otoliths of fish kept in tanks and in a farm dam. The annulus pattern on the otoliths was generally clear and their formation appeared to be temperature related and largely completed in the Austral spring around September and October. Male T. mariae grow faster and larger than females and the maximum ages of fish from the coastal river and impoundment was 9+ and 4+ years, respectively. Past fish surveys and the absence of older age classes in the impoundment population would suggest that this population was only very recently established.
journal_name
J Fish Bioljournal_title
Journal of fish biologyauthors
Russell DJ,Thomson FE,Thuesen PAdoi
10.1111/jfb.12059subject
Has Abstractpub_date
2013-04-01 00:00:00pages
1211-25issue
4eissn
0022-1112issn
1095-8649journal_volume
82pub_type
杂志文章abstract：:Otolith shape variation of seven Atlantic herring Clupea harengus populations from Canada, the Faroe Islands, Iceland, Ireland, Norway and Scotland, U.K., covering a large area of the species' distribution, was studied in order to see if otolith shape can be used to discriminate between populations. The otolith shape ...
journal_title：Journal of fish biology
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journal_title：Journal of fish biology
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journal_title：Journal of fish biology
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abstract：:After 80 years of misidentifications, the analysis of the holotype of Corydoras arcuatus plus several non-type specimens attributed to this species allowed its recognition and also revealed a new species, both sharing the following diagnostic features: a long, arched, continuous black stripe that runs parallel to the ...
journal_title：Journal of fish biology
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