Ichthyoplankton detection proportion and margin of error for the scomber japonicus in Korean coastal seas SCOPUS KCI

Title
Ichthyoplankton detection proportion and margin of error for the scomber japonicus in Korean coastal seas
Author(s)
Kim, S.; Cho, H.-Y.
KIOST Author(s)
Kim, Sung(김성)Cho, Hong Yeon(조홍연)
Publication Year
2017
Abstract
The probability distribution of ichthyoplankton is important for enhancing the precision of sampling while reducing unnecessary surveys. To estimate the ichthyoplankton detection proportion (IDP) and its margin of error (ME), the monitoring information of the chub mackerel’s (Scomber japonicus) ichthyoplankton presence-absence sampling data has been were collected over approximately 30 years (from 1982 to 2011) in the Korean coastal seas. Based on the computed spatial distributions of the mackerel’s IDP and ME, the confidence interval (CI) range, defined as 2 ME, decreases from approximately 80% to 40% as the sample size n increases from 4 to 24 and the ME is approximately 40% in the typical (seasonal survey) case n = 4 per year. The IDP and ME offJeju Island are relatively high at the 0.5-degree smoothing level. After increasing the spatial smoothing level to 1.0-degree, the ME decreased, and the spatial distribution pattern also changed due to the over-smoothing effects. In this study, the 0.5-degree smoothing is more suitable for the distribution pattern than the 1.0-degree smoothing level. The area of the high IDP and the low ME on the mackerel’s ichthyoplankton was similar to the estimated spawning ground in the Korean peninsula. This information could contribute to enhancing for the spawning ecology surveys. © 2017, Korea Ocean Research and Development Institute. All rights reserved.
ISSN
1598-141X
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/1330
DOI
10.4217/OPR.2017.39.2.073
Bibliographic Citation
Ocean and Polar Research, v.39, no.2, pp.73 - 84, 2017
Publisher
Korea Ocean Research and Development Institute
Subject
coastal zone; detection method; ichthyoplankton; perciform; probability; sampling; spatial distribution; spawning; survey; Cheju [Cheju (PRV/ISL)]; Cheju [South Korea]; Korea; South Korea; Leuciscus cephalus; Scomber; Scomber japonicus
Keywords
Binomial distribution; Confidence interval; Ichthyoplankton detection proportion; Margin of error; Scomber japonicas
Type
Article
Language
English
Document Type
Article
Publisher
Korea Ocean Research and Development Institute
Related Researcher
Research Interests

Spawning ecology of fishes,Marine Environmental DNA Biomonitoring,어류산란생태,해양 eDNA 분석

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