Dominant causes on the catch fluctuation of a set net fishery in the mid-south sea of Korea

Kim, Hee‐Yong; Song, Se Hyun; Lee, Sunkil; Kim, Jongbin; Yoo, Joon-Taek; Jang, Dae-Soo

doi:10.3796/ksft.2012.49.3.250

Cited by 11 publications

(8 citation statements)

References 12 publications

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“…25% of the annual fisheries production in South Korea, i.e., during the years 2010-2012 where they caused a roughly loss of US$68.2-204.6 million [66]. Moreover, the massive N. nomurai proliferation heavily reduced the catch stock in 2009 with a yielding an average loss of 100 ton of fish catch per month in eastern and southern Korea [67]. Moreover, envenomation events caused by jellyfish in this region have shown a marked increase in the last decade, from 2007 to 2019 the number of cases was four-fold higher [68,69], including a first fatal case caused by N. nomurai in 2012 [70], thus becoming a risk factor for tourism [71].…”

Section: Climate and Jellyfish Dynamics In The Korean Peninsulamentioning

confidence: 99%

Contrasting Effects of Regional and Local Climate on the Interannual Variability and Phenology of the Scyphozoan, Aurelia coerulea and Nemopilema nomurai in the Korean Peninsula

et al. 2021

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The East Asian marginal seas are among the most productive fisheries grounds. However, in recent decades they experienced massive proliferations of jellyfish that pose vast challenges for the management of harvested fish stocks. In the Korean Peninsula, the common bloom-formers Scyphozoan species Aurelia coerulea and Nemopilema nomurai are of major concern due to their detrimental effects on coastal socio-ecological systems. Here, we used pluriannual field observations spanning over 14 years to test the extent of climate influence on the interannual variability and bloom dynamics of A. coerulea and N. nomurai. To depict climate-jellyfish interactions we assessed partitioning effects, direct/indirect links, and the relative importance of hydroclimate forces on the variability of these species. We show that jellyfish interannual patterns and bloom dynamics are shaped by forces playing out at disparate scales. While abundance changes and earlier blooms of A. coerulea were driven by local environmental conditions, N. nomurai interannual patterns and bloom dynamics were linked with regional climate processes. Our results provide a synoptic picture of cascading effects from large scale climate to jellyfish dynamics in the Korean Peninsula that may affect fisheries sustainability due to the prominent detrimental impact these species have in the region.

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Section: Climate and Jellyfish Dynamics In The Korean Peninsulamentioning

confidence: 99%

Contrasting Effects of Regional and Local Climate on the Interannual Variability and Phenology of the Scyphozoan, Aurelia coerulea and Nemopilema nomurai in the Korean Peninsula

et al. 2021

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“…The set net catches between Dolsan Island and Namhae Island in the Yeosu Bay vary greatly depending on the location of the fishing ground, net sizes, operating conditions and sea conditions (Cha, 2009;Kim, 1993;Kim & Rho, 1993, 1994, 1995, 1996Kim et al, 1988Kim et al, , 1989Kim et al, , 2013. The dominant fish species in the set net in our study was Spanish mackerel.…”

Section: Characteristics Of Fluctuations In Catch and Water Temperaturementioning

confidence: 67%

“…This indicates that the Tsushima Current are very influential on the inflow of Spanish mackerel into the Yeosu Bay's set net fishing grounds. According to Kim et al (2013) in the 2004-2011 survey of the catch and species composition of set nets at the southeastern Dolsan Island, Spanish mackerel predominantly accounted for approximately 70% of the total catch from summer to late autumn. Similarly, our study showed that the Spanish mackerel catch rate was high in summer and autumn.…”

Section: Characteristics Of Fluctuations In Catch and Water Temperaturementioning

confidence: 99%

Correlation between water temperature and catch at a set net in Yeosu Bay, Korea

Choo¹

2021

Fish Aquat Sci

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Data for fish species composition and the catch of fish species were obtained from the daily trading records for the period between April and December 2016 to 2018 at the set net fishing grounds in Yeosu Bay, Korea. The annual mean total catch was 195.8 tons, and the dominant species was the Spanish mackerel (Scomberomorus niphonius), which accounts for about 55 percent of the total catch. The catch increased in spring and autumn. Increase in spring is caused by not Spanish mackerel but other fish while the increase in autumn by Spanish mackerel. The distinct increase of the catch in summer, 2017 was due to the new recruitment of small-sized Spanish mackerel, which was probably to be from the fish population hatched in spring in the East China Sea. Our results showed a strong correlation between water temperature and catch fluctuation. The catch increases with the increase in water temperatures, and the periodic pattern of the water temperature and catch fluctuation is more consistent in the offshore waters, in which warm current flows, than in the coast waters.

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“…, (Cha et al, 2001;Cha et al, 2004). (Cha, 1999;, (Cha et al, 2001;Cha et al, 2008), (Kim et al, 2003;Kim et al, 2013), (Ryu et al, 2005), (Cha et al, 2007;, (Cha, 2010) . , , (Gil et al, 2004), (Chun et al, 2009), (Lee, 2011), (Lee et al, 2008), (Beack et al, 2010), (Hong et al, 2008) .…”

mentioning

confidence: 99%

Species Composition and Seasonal Variations of Fishes Collected by Set Net in Coastal Waters of Gijang, Korea

Lee¹,

Sukyung²,

Choi³

et al. 2014

Korean Journal of Fisheries and Aquatic Sciences

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Fish catches by a set net from January 2007 to November 2009 were analyzed to assess fish species composition and seasonal variations in the coast of Gijang, Korea. Over 389 kg fish representing 78 species, 45 families and 17 orders were collected during three years of the study. Dominant species were jack mackerel Trachurus japonicus, anchovy Engraulis japonicus and herring Clupea palasii, and these three species comprised 67.3% of the total number of individuals and 60.7% of the total biomass. Size distribution of the dominant species for jack mackerel, anchovy and herring ranged from 2.2 cm to 22.6 cm, from 2.5 cm to 14.8 cm, from 4.0 cm to 29.0 cm in fork length, respectively. Anchovy was the only species that occurred throughout all seasons in the Gijang coast. Generally, species richness was highest in spring (April to June) when sea temperature began to increase.

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Dominant causes on the catch fluctuation of a set net fishery in the mid-south sea of Korea

Abstract: The annual and monthly fluctuation in the species composition and the catch abundance of dominant species were analyzed using the daily sales slip catch data by a set net in the offshore waters off Dolsan Island in

Cited by 11 publications

References 12 publications

Contrasting Effects of Regional and Local Climate on the Interannual Variability and Phenology of the Scyphozoan, Aurelia coerulea and Nemopilema nomurai in the Korean Peninsula

Contrasting Effects of Regional and Local Climate on the Interannual Variability and Phenology of the Scyphozoan, Aurelia coerulea and Nemopilema nomurai in the Korean Peninsula

Correlation between water temperature and catch at a set net in Yeosu Bay, Korea

Species Composition and Seasonal Variations of Fishes Collected by Set Net in Coastal Waters of Gijang, Korea

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