Ex Situ Target Strength Measurements of Rockfish (Sebastes schlegeli) and Striped Beakperch (Oplegnathus fasciatus)

被引：0

作者：

Yoon, Euna ^{[1
]}

Oh, Woo-Seok ^{[2
]}

Lee, Kyounghoon ^{[3
]}

机构：

[1] Natl Inst Fisheries Sci, Fisheries Resource Res Ctr, Tongyeong 53064, South Korea

[2] Pukyong Natl Univ, Inst Low Carbon Marine Prod Technol, Busan 48513, South Korea

[3] Pukyong Natl Univ, Div Marine Prod Syst Management, Busan 48513, South Korea

来源：

FISHES | 2024年 / 9卷 / 10期

关键词：

target strength; <italic>Sebastes schlegeli</italic>; <italic>Oplegnathus fasciatus</italic>; ex situ; LENGTH-WEIGHT RELATIONSHIPS; ACANTHOPAGRUS-SCHLEGELI; ACOUSTIC SCATTERING; DEMERSAL FISHES; SEA; DENSITY; SWIMBLADDER; EFFICIENCY; JAPONICUS; BEHAVIOR;

D O I：

10.3390/fishes9100371

中图分类号：

S9 [水产、渔业];

学科分类号：

0908 ;

摘要：

The rockfish (Sebastes schlegeli) and striped beakperch (Oplegnathus fasciatus) were released in marine ranching areas in Korea, Japan, and China to maintain fishery resources in coastal areas. To estimate the density and biomass of fishery resources, the target strength (TS) of target marine organisms is needed to scale integrated volume backscattering coefficients. In this study, the target strength-length (TS-L) relationship for live rockfish and striped beakperch was derived using ex situ methods at a frequency of 200 kHz. The TS-L function for rockfish and striped beakperch can be expressed as TSAvg. = 20logTL - 69.25 (R2 = 0.35) and TSAvg. = 20logFL - 67.01 (R2 = 0.31), respectively. These results can be used to assess the growth, density, and abundance of the two species using acoustics.

引用

页数：12

共 57 条

[1] Empirical determination of in situ target strengths of three loosely aggregated pelagic fish species [J].