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http://dx.doi.org/10.4217/OPR.2022016

Length-Weight Relationship of the Copepod Calanus sinicus off Busan in Spring  

Kang, Hyung-Ku (Marine Ecosystem Research Center, Korea Institute of Ocean Science & Technology)
Kim, Garam (Marine Ecosystem Research Center, Korea Institute of Ocean Science & Technology)
Lee, Yeonjung (Marine Ecosystem Research Center, Korea Institute of Ocean Science & Technology)
Publication Information
Ocean and Polar Research / v.44, no.3, 2022 , pp. 261-267 More about this Journal
Abstract
We derived a length-weight relationship for Calanus sinicus off Busan, Korea in spring to estimate the biomass of the C. sinicus population around Korean waters, and compared it with the previously derived equations. The developmental stages and prosome length of C. sinicus used in the relationship ranged from 1,376-1,540 ㎛ for copepodite 4 (CIV), 1,753-1,971 ㎛ for copepodite 5 (CV), and 2,160-2,283 ㎛ for adults (CVI). Dry weight and carbon content were measured from a total of 26 replicates. Length-weight relationships derived in the present study are as follows: log C = 3.342 log PL - 9.449, log DW = 3.394 log PL -9.219, where C is carbon content (㎍), DW is dry weight (㎍), and PL is prosome length (㎛). When comparing the present regression equation of length-weight for C. sinicus with the previous one, our regression equation showed an average carbon estimate to a given range of mean prosome length. The length-weight relationship of C. sinicus in the present study can be used to better estimate the biomass of the C. sinicus population in the coastal waters of Korea.
Keywords
copepoda; Calanus sinicus; length-weight relationship; prosome length; carbon content; dry weight;
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Times Cited By KSCI : 5  (Citation Analysis)
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