Method for measuring age and individual growth size of sthenoteuthis oualaniensis on basis of external form of otolith

An external form, kite squid technology, applied in the field of estimating the South China Sea kite squid age and individual growth based on the external shape of the otolith, can solve the problems of lack of research on kite squid otolith, no report on the shape and growth of kite squid otolith, etc.

Inactive Publication Date: 2019-06-11
SHANGHAI OCEAN UNIV
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  • Abstract
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  • Claims
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Problems solved by technology

Scholars at home and abroad have carried out research on the geographical distribution, group division, resource assessment, resource change and marine environment relationship of the kite squid (Lu Huajie, Tong Yuhe, Liu Wei, et al. Fishery biological characteristics of squid[J].Acta Fishery,2018,36(8:121-121. Chen X J,Liu BL,Tian S Q,et al.Fishery biology of purpleback...

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  • Method for measuring age and individual growth size of sthenoteuthis oualaniensis on basis of external form of otolith
  • Method for measuring age and individual growth size of sthenoteuthis oualaniensis on basis of external form of otolith
  • Method for measuring age and individual growth size of sthenoteuthis oualaniensis on basis of external form of otolith

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Embodiment 1

[0040] 1 Materials and methods

[0041] 1.1 Sample source

[0042] The sample collection time is from January 1st to March 30th, 2016, and from January 09th to March 29th, 2017. The collection area is 15°18′N-18°28′N, 111°15′E-115 °31′E( figure 1 ), collected by fishing boats "Qiong Sanya Yu 72106" and "Qiong Sanya Yu 72060". Each station randomly sampled 20 kite squid catches every day, and a total of 860 kite squid samples were collected.

[0043] 1.2 Research Methods

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Abstract

The invention relates to the field of aquatic science, in particular to a method for measuring the age and individual growth of sthenoteuthis oualaniensis on the basis of the external form of otolith.According to the method, the age and individual growth of sthenoeuthis oualaniensis are measured by utilizing four appearance feature parameters including the total statolith length, maximum width, lateral dome length and wing length of the otolith of sthenoeuthis oualaniensis. According to the method, the research on the correlation between the age and individual growth of sthenoeuthis oualaniensis and the external form of the otolith is carried out, and a necessary basis is provided for utilizing the external form of the otolith to carry out basic biologic and ecologic research on cephalopods and resource quantity evaluation.

Description

technical field [0001] The invention relates to the field of fisheries, in particular to a method for calculating the age and individual growth of the South China Sea kite squid based on the external shape of otoliths. Background technique [0002] The kite squid (Sthenoeuthis oualaniensis) belongs to the Oumastrephidae family and the genus Sthenoeuthis. It is a migratory oceanic species and is widely distributed in the equatorial and subtropical waters of the Indian Ocean and the Pacific Ocean. The kite squid is rich in resources, and the global potential resources are 8-11×10 7 t, of which the potential resource volume in the South my country Sea is about 244×10 4 t, is the most important cephalopod target species in the South China Sea, and has high development value. Otolith is an important hard tissue of cephalopods. It grows throughout the entire life cycle of cephalopods. It has a stable structure, a large amount of information, and an irreversible deposition proces...

Claims

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Application Information

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IPC IPC(8): A01K61/50G01N33/00
CPCY02A40/81
Inventor 陆化杰张旭唐悦刘凯陈新军董增祥
Owner SHANGHAI OCEAN UNIV
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