| Title |
-
en
Age and growth of pointhead flounder Hippoglossoides pinetorum in Ishikari Bay, Hokkaido
|
| Creator |
|
| Accessrights |
open access |
| Rights |
-
ja
© 1996 公益社団法人日本水産学会
-
en
© 1996 The Japanese Society of Fisheries Science
|
| Subject |
-
Other
en
Hippoglossoides pinetorum
-
Other
en
age
-
Other
en
growth
-
Other
en
otolith
-
NDC
663
|
| Description |
-
Abstract
en
Pointhead flounder, Hippoglossides pinetorum, taken by commercial gillnets and an experimental beam trawl net in Ishikari Bay, Hokkaido from September 1991 to July 1993 were aged using polished otoliths (saggitae). Ages were validated by the monthly change in the percentage of otolith with translucent edge and marginal increments; a single opaque and translucent zone was formed annually. The regression method and Lee (Fraser-Lee)'s method were used to estimate the back-calculated length. Growth of pointhead flounder was expressed as Lt=251.9(1-exp^[-0.261(t-0.142)]) for males and Lt=315.1(1-exp^[-0.219(t-0.200)]) for females using back-calculated lengths by the regression method and Lt=251.6(1-exp^[-0.263(t-0.142)]) for males and Lt=333.0(1-exp^[-0.204(t-0.186)]) for females using back-calculated lengths by Lee's method, where Lt is the standard length (mm) at estimated age t. Small differences in the theoretical lengths of older female fish were found between the two methods. However, the theoretical standard lengths predicted by the two methods were very similar at most estimated ages and indicated the approximate actual length at each age.
|
| Publisher |
en
Japanese Society of Scientific Fisheries
|
| Date |
|
| Language |
|
| Resource Type |
journal article |
| Version Type |
VoR |
| Identifier |
HDL
http://hdl.handle.net/2115/38559
|
| Relation |
-
isIdenticalTo
DOI
https://doi.org/10.2331/fishsci.62.215
|
| Journal |
-
-
PISSN
0919-9268
-
NCID
AA10993718
-
en
Fisheries Science
-
Volume Number62
Issue Number2
Page Start215
Page End221
|
| File |
|
| Oaidate |
2023-07-26 |
