Age and growth of the pufferfishUranostoma richei(Plectognathi: Lagocephalidae) from Lyttelton Harbour
作者:
G. Habib,
期刊:
New Zealand Journal of Marine and Freshwater Research
(Taylor Available online 1977)
卷期:
Volume 11,
issue 4
页码: 755-766
ISSN:0028-8330
年代: 1977
DOI:10.1080/00288330.1977.9515711
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
The age of pufferfishUranostoma richei(Freminville) in Lyttelton Harbour, South Island, New Zealand is described from analyses of length‐frequency distributions and growth zones in otoliths. Length‐frequency analysis is adequate only for aging smaller fish. The validity of using growth zones in otoliths is checked by examining the pattern and time of zone formation. Length‐weight relationships are established and growth rates calculated. Compared with males, females grow faster (2.4cm·y−1; 2.1 for males), attain a larger size (to 18 cm and 120 g; 12 cm and 40 g for males) and live longer (to 7 y; 5 for males).
点击下载:
PDF (641KB)
返 回