NDLI: Age, growth and maturation of the blackspot snapper Lutjanus fulviflammus around Okinawa Island, Japan

Content Provider	Springer Nature Link
Author	Shimose, Tamaki Tachihara, Katsunori
Copyright Year	2005
Abstract	The blackspot snapper Lutjanus fulviflammus is one of the most common Lutjanus species landed and consumed on Okinawa Island, Japan. Using 901 fish (29.9–304.2 mm in standard length; SL) obtained from fish markets or caught by angling, the age, growth, maturation size and maturation age were estimated. Each opaque zone formed on the otolith every year correlated with their spawning and was thought to be an annual ring. The main spawning season was estimated to be from April to July, which peaked in May and June, with a few mature fish collected in August and September. Maximum ages were observed as 24 years for both sexes and L$_{∞}$ (mm SL), K and t$_{0}$ (years) of the von Bertalanffy growth formula were estimated to be 276, 0.144 and −5.22 for females and 247, 0.227 and −3.18 for males, respectively. First maturation size and age were estimated to be 175 mm SL and 2 years for both sexes. A faster growth rate up to 2 years will allow reproduction at a young age and provide many chances for spawning throughout their long life. Furthermore, the possibility exists that populations would easily recover if regulations were established.
Starting Page	48
Ending Page	55
Page Count	8
File Format	PDF
ISSN	09199268
Journal	Fisheries Science
Volume Number	71
Issue Number	1
e-ISSN	14442906
Language	English
Publisher	Springer-Verlag
Publisher Date	2005-01-01
Publisher Place	Tokyo
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	age growth Lutjanus fulviflammus maturation Okinaw a Island Fish & Wildlife Biology & Management Freshwater & Marine Ecology Food Science
Content Type	Text
Resource Type	Article
Subject	Aquatic Science

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