Hydroacoustic Survey of Spatio-Temporal Distribution of Demersal Fish Aggregations Near the West Coast of Jeju Island, Korea

Kang, Di; Yoo, Joon-Taek; Goo, Myoung Jung; Im, Yang-Jae; 이창원,

doi:10.4217/opr.2008.30.2.181

Cited by 21 publications

(9 citation statements)

References 11 publications

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“…, , , (Kim, 1993;Kim and Rho, 1996;Kim et al, 2003;Jeong et al, 2010). (Kang et al, 2008;Lee et al, 2012) (Yoon et al, 2008), , 8 ( Fig. 8).…”

Section: 고 찰mentioning

confidence: 99%

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The Characteristics and Spatio-temporal Distribution of Fish Schools during Summer in the Marine Ranching Area (MRA) of Yeosu using Acoustic Data

Yoon¹,

Hwang²,

Kim³

et al. 2014

Korean Journal of Fisheries and Aquatic Sciences

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This study assessed dominant fish species, and the characteristics and spatio-temporal distribution of fish schools using acoustic and catch data in the marine ranching area (MRA) of Yeosu in July and August 2013. Acoustic data were collected using a 200-kHz dual beam transducer, and catch data were analyzed through auction data generated by a set net installed in the MRA. More fish schools were detected by acoustic methods in July than in August. The temporal distribution of fish schools differed between July and August, but, many schools demonstrated a high mean volume scattering strength (SV) around artificial reefs. Additionally, the characteristics of fish schools detected by echograms and the species caught by set nets differed between July and August. The dominant fish species were Engraulis japonicus, Pampus argenteus, Scomberomorus niphonius, and Pampus echinogaster in July, and approximately 85% of the catch in August consisted of Scomberomorus niphonius. Therefore, hydro-acoustic tools are useful for estimating fish school characteristics in large areas over a short period. To determine species, it is important to conduct net sampling surveys during the acoustic surveys. However, if a database of fish school characteristics organized by species is constructed through continuous study, it could be possible to identify fish species through acoustic methods alone.

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“…, , , (Kim, 1993;Kim and Rho, 1996;Kim et al, 2003;Jeong et al, 2010). (Kang et al, 2008;Lee et al, 2012) (Yoon et al, 2008), , 8 ( Fig. 8).…”

Section: 고 찰mentioning

confidence: 99%

“…• . Hwang et al (2004), Kang et al (2008), Kim et al (2011), Lee et al (2012), Lee (2013) . Hwang et al (2004) , Kang et al (2008) Lee et al (2012) , Kim et al (2011) Lee (2013 .…”

mentioning

confidence: 99%

The Characteristics and Spatio-temporal Distribution of Fish Schools during Summer in the Marine Ranching Area (MRA) of Yeosu using Acoustic Data

Yoon¹,

Hwang²,

Kim³

et al. 2014

Korean Journal of Fisheries and Aquatic Sciences

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“…Other countries perform hydroacoustic surveys of various migratory fishes such as the Alaskan cod, Bering Sea pollock, Peruvian anchoveta, and sardine on a regular basis. Korea has published limited research results on the distribution and current amounts of major fish species using acoustic equipment in Asan Bay in South Chungcheong Province (anchovies), Tongyeong in South Gyeongsang Province, Yeosu in South Jeolla Province, and the waters near Jeju and around artificial reefs installed in coastal areas [11][12][13]. In addition to spatial research using acoustic methods, the movement patterns of fishes and fluctuations in zooplankton have been studied through limited-time or long-term monitoring using moored acoustic equipment such as multi-beam image sonar, acoustic zooplankton fish profiler, and acoustic Doppler current profiler, owing to the advancement of technology [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Small-Scale Spatiotemporal Pattern in the Spawning of Pacific Herring (Clupea pallasii) in the Jinhae Bay, Korea, Estimated Using Hydroacoustic Survey

et al. 2021

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Acoustic surveys were used to locate coastal Pacific herring (Clupea pallasii) spawning grounds, and the spatial and temporal patterns of their spawning in Jinhae Bay, Korea were examined. We deployed mooring with a newly designed autonomous echosounder for ~70 days during the Pacific herring spawning season in Jinhae Bay, from January to April 2018. At the same time, ship-based acoustic surveys were conducted to identify the spatial distribution twice, at 38 and 120 kHz, onboard the fishing vessel in January and April 2018 in the bay. Fish school signals, including those from adult Pacific herring, are often detected through ship-based acoustic surveys in January, from outside the bay. In the spring, weak scattering signals from fish larvae and zooplankton were continuously detected inside the bay. Backscatter at the mooring in the center of Jinhae Bay was low from mid-January to early March, gradually increasing to higher levels until the end of March. The backscatter observed from the mooring correlated well with ship-based acoustic surveys in the center of the bay. This study proposes that the mooring type acoustic echosounder is a valuable tool for temporal abundance information and other aspects of fish behavior.

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“…및 어류생물의 유집 상태 등을 파악하는 조사 등이 중심 이 되고 있으며, 인공어초해역의 어업자원의 변동은 시 험어획조사와 음향자원조사법이 적용되어 인공어초 효 과 및 사후관리에 활용되고 있다 (Kang et al, 2008;Lee et al, 2012 (Kang et al, 2008 10월 조사에서도 AO어초 (Fig. 5 (c)…”

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Spatial characteristics of fish distribution lured by artificial reefs in Jeju marine ranching area

Hwang¹,

Jang²

2014

Journal of the Korean society of Fisheries Technology

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Hydro-acoustic survey was carried out to investigate the spatial characteristics of fish distribution near two artificial reefs (AO: large octagonal semi-sphere and AC: combined custom built) having different types in Jeju marine ranching area. The survey system consisted of scientific echo sounder (EK60), DGPS system, and ECDIS (Mecys). Field survey was conducted on August and October 2012 with star survey and line transect survey line method, and species composition was investigated from gill net fishing survey. The acoustic signals from individual fishes and small fish schools were mainly recorded around AO, but large and strong signals from large fish school were mainly detected in the top layer of and the water column near AC. The echogram suggest that the fish aggregation for the two types of AO and AC exist the significant difference in fish species and spatial distribution pattern.

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Hydroacoustic Survey of Spatio-Temporal Distribution of Demersal Fish Aggregations Near the West Coast of Jeju Island, Korea

Cited by 21 publications

References 11 publications

The Characteristics and Spatio-temporal Distribution of Fish Schools during Summer in the Marine Ranching Area (MRA) of Yeosu using Acoustic Data

The Characteristics and Spatio-temporal Distribution of Fish Schools during Summer in the Marine Ranching Area (MRA) of Yeosu using Acoustic Data

Small-Scale Spatiotemporal Pattern in the Spawning of Pacific Herring (Clupea pallasii) in the Jinhae Bay, Korea, Estimated Using Hydroacoustic Survey

Spatial characteristics of fish distribution lured by artificial reefs in Jeju marine ranching area

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