[논문]모의실험을 통한 한국 동해 도루묵(Arctoscopus japonicus)의 자연사망 계수 조건에 따른 가입당 생산 분석

이경환; 서호영; 조기필

doi:10.5657/kfas.2023.0331

모의실험을 통한 한국 동해 도루묵(Arctoscopus japonicus)의 자연사망 계수 조건에 따른 가입당 생산 분석
Simulation-based Yield-per-recruit Analysis of Sandfish Arctoscopus japonicus in the East Sea of Korea Subjected to Natural Mortality Conditions 원문보기

한국수산과학회지 = Korean journal of fisheries and aquatic sciences, v.56 no.3, 2023년, pp.331 - 340

이경환 (전남대학교 ICT수산자원관리연구소) , 서호영 (전남대학교 해양융합과학과) , 조기필 (강원대학교 AI소프트웨어학과)

Abstract ▼ AI-Helper

To estimate the biological reference points, suitable for fisheries management of sandfish Arctoscopus japonicas in the East Sea of Korea, we simulated the yield-per-recruit (Y/R) from age 0 to 6 (0-2,555 days). The stimulation was based on two instantaneous natural mortality conditions: size-dependent (Mt, d-1) and constant (Mcons, d-1); Subsequently, the biological reference points of the two mortality conditions was compared. Mt decreased from 0.0075 d-1 to 0.0018 d-1 depending on growth, and Mcons remained constant at 0.0011 d-1 for all ages. Our Y/R model showed that the maximum yield of Mcons was 14 times higher than that of the Mt. The length at first capture to maximize the harvest at the F0.1 points of the two natural mortality conditions was Lc,t=10.2 cm (TL) and Lc,cons=17 cm (TL). We concluded that Mt was more suitable for estimating M than Mcons; this is because Lc,t showed minimal difference from the current fishing regulations (11 cm, TL), and Mt reflected more biological characteristics than Mcons. We suggest that 10.2 cm and 0.8 as the suitable length at first capture and corresponding age, respectively for efficient fisheries management of sandfish.

주제어

표/그림 (10)

표 Table 1. Estimated mean total length of sandfish Arctoscopus japonicus in the East sea of Korea, based on averaged body length by age, considering both male and female
표 Table 2. Age-specific total length of male and female sandfish in the East Sea of Korea, estimated by body length
그림 Fig. 1. The von Bertalanffy growth curve of sandfish Arctoscopus japonicus in the East Sea of Korea, combining both sexes, derived from the mean total length by age. The coefficients of the growth curve were estimated using the Walford method. ○, Male; ●, Female.
그림 Fig. 2. Relationship between total length and body weight estimated using the non-linear regression method for sandfish in the East Sea of Korea. ○, Male; ●, Female.
그림 Fig. 3. Changes in M_t (solid line) and M_cons (dotted line) of sandfish under two instantaneous natural mortality conditions from 0 to 2,555 day.
그림 Fig. 4. Yield per recruit of sandfish in the East Sea of Korea with the varying length at first capture (L_c, cm in TL) and fishing mortality (F, yr^-1) of two different conditions: (a) size-dependent instantaneous natural mortality (M_t, d^-1), and (b) constant instantaneous natural mortality (M_cons, d^-1). TL, Total length.
그림 Fig. 5. Changes in yield at F_0.1 points of sandfish with varying length at first capture (L_c, cm in TL) of two different conditions: (a) size-dependent instantaneous natural mortality (M_t, d^-1), and (b) constant instantaneous natural mortality (M_cons, d^-1). F_0.1 represents a biological reference point of corresponding to 10% of the slope of the yield per recruit curve at the origin (F=0), and Y_0.1 is the corresponding yield. TL, Total length.
그림 Fig. 6. Yield per recruit curves of sandfish with varying fishing mortality of two different conditions: (a) L_c,t=10.2 cm (TL) and size-dependent instantaneous natural mortality (M_t, d^-1), and (b) L_c,cons=17 cm (TL) and constant instantaneous natural mortality (M_cons, d^-1). F_max represents a reference point where the slope of the yield per recruit curve equals zero, and Y_max is the corresponding yield. TL, Total length.
표 Table 3. Comparison of biological reference points (F_0.1, F_max) and corresponding yield (Y_0.1, Y_max) with respect to varying L_c (10.2, 11, 17 cm)
그림 Fig. 7. Yield per recruit curve of sandfish varying with the length at first capture (L_c=10.2, 13, 16.8 cm) under condition of size-dependent instantaneous natural mortality (M_t, d^-1), and the corresponding yield of F_0.1.

AI 본문요약
AI-Helper

문제 정의

따라서, 본 연구는 우리나라 주변 해역 중 주요 분포 해역인 동해의 도루묵을 대상으로 과거에 수행한 생물학적 특성 평가 연구자료를 이용하여 시간에 따른 성장을 평가하고 1) 성장에 따라 자연사망계수가 감소하는 조건과 2) 전 연령의 자연사망사망계수가 일정한 조건에서 가입당 생산량을 추정하는 모의 시뮬레이션을 각각 수행하였다. 이 시뮬레이션을 통해 두 가지 자연사망계수 조건에 따른 가입당 생산량을 평가하고 생물학적 기준점별 생산량을 비교하여 최근 감소하는 도루묵 자원의 적정 어획 관리를 위한 기준점을 제시하고자 한다.

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표제어: PCR

동의어: Packet Collision Rate

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용어 설명: PCR은 세균 특이성이 있는 primer를 이용하여 적은 수의 세균이 있을지라도 쉽게 검출할 수 있는 유용한 방법이며, 이를 이용하여 구강 내 치면세균막이나 타액에서 직접 세균을 검출할 수 있게 되었다[8].

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