Estimating target strength of young chum salmon (<i>Oncorhynchus keta</i>)-Reference-Cited by-同舟云学术

Estimating target strength of young chum salmon (Oncorhynchus keta)

Published:2022-02 Issue:2 Volume:79 Page:195-199
ISSN:0706-652X
Container-title:Canadian Journal of Fisheries and Aquatic Sciences
language:en
Short-container-title:Can. J. Fish. Aquat. Sci.

Author:

Minami Kenji¹,Shirakawa Hokuto²,Kawauchi Yohei³,Shao Huamei⁴,Tomiyasu Makoto⁵,Iwahara Yuka⁴,Tsuda Yuichi⁶,Takahara Hideo⁷,Zhu Yanhui⁴,Miyashita Kazushi⁸

Affiliation:

1. Estuary Research Center, Shimane University, Matsue, Shimane, Japan.

2. Demersal Fish Resources Division, Fisheries Stock Assessment Center, Fisheries Resources Institute, Japan Fisheries Research and Education Agency, Niigata, Niigata, Japan.

3. Socio-Ecological Systems Division, Fisheries Resources Institute, Japan Fisheries Research and Education Agency, Yokohama, Kanagawa, Japan.

4. Graduate School of Environmental Science, Hokkaido University, Hakodate, Japan.

5. Faculty of Fisheries Science, Hokkaido University, Hakodate, Hokkaido, Japan.

6. Highly Migratory Resources Division, Fisheries Stock Assessment Center, Fisheries Resources Institute, Japan Fisheries Research and Education Agency, Yokohama, Kanagawa, Japan.

7. Fisheries and Oceans Hakodate, Hakodate, Hokkaido, Japan.

8. Field Science Center for Northern Biosphere, Hokkaido University, Hakodate, Hokkaido, Japan.

Abstract

Although chum salmon (Oncorhynchus keta) is an important fishery resource in Japan, acoustic methods cannot be applied to biomass estimation because the target strength (TS) is unknown. This study clarified the TS for each fork length (FL: 5.5–33.5 cm) of young chum salmon inhabiting the Japanese coastal area to the Bering Sea by measuring free-swimming fish. The size dependences of the TS values were TSmean = 20 log10 FL – 68.0, for both 38 and 120 kHz. This facilitated the estimation of biomass of young salmon using acoustic methods.

Publisher

Canadian Science Publishing

Subject

Aquatic Science,Ecology, Evolution, Behavior and Systematics

Link

https://cdnsciencepub.com/doi/pdf/10.1139/cjfas-2021-0181

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