Species composition and community structure caught by shrimp beam trawl in the marine ranching ground of Taean, Korea

Park, Jun; Jo, Hyun-Su; Im, Yang-Jae; Cha, Byung-Yeul; Kwon, Dae-Hyeon; Ryu, Dong-Woo; Hwang, Hak-Jin

doi:10.3796/ksft.2012.49.3.238

Cited by 9 publications

(2 citation statements)

References 7 publications

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“…, , , (Ryu and Choi, 1993), (Hwang, 1998). (Hwang and Lee, 2011), (Noh et al, 2009) (Jeong et al, 2012), (Park et al, 2013) . , .…”

Section: 서 론mentioning

confidence: 99%

Comparison of Species Composition and Seasonal Variation of Demersal Organisms Caught by Otter Trawl in the Coastal Waters off the Taean Peninsula, in the West Sea of Korea

Jeong¹,

Cha²,

Im³

et al. 2014

Korean Journal of Fisheries and Aquatic Sciences

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To investigate species composition and seasonal variation of demersal organisms in the coastal waters off the Taean peninsula, otter trawl surveys were conducted from April 2010 to January 2011. A total of 75 species were collected, including 44 species of Pisces, 19 species of Crustacea, 6 species of Cephalopoda, 4 species of Gastropoda, and 1 species each of Bivalvia and Echinoidea. The dominant species in each season were Palaemon gravieri in spring, Charybdis bimaculata in summer, Loligo japonica in autumn, and Crangon hakodatei in winter. The number of species, individuals and biomass were highest in autumn and lowest in winter. The diversity index was highest in summer and lowest in winter. The dominance index was highest in winter and lowest in summer. The richness index was highest in autumn and lowest in winter. The evenness index was highest in summer and lowest in autumn. A cluster analysis showed that demersal organisms were divided into two groups; spring and winter organisms (Group 1) and summer and autumn organisms (Group 2). We detected a significant difference (P<0.05) between these groups, mainly owing to Platycephalus indicus, Repomucenus koreanus, and Paralichthys olivaceus within Pisces: Trachysalambria curvirostris, Metapenaeopsis dalei, P. gravieri, and C. hakodatei within Crustacea: and L. japonica within Cephalopoda.

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“…, , , (Ryu and Choi, 1993), (Hwang, 1998). (Hwang and Lee, 2011), (Noh et al, 2009) (Jeong et al, 2012), (Park et al, 2013) . , .…”

Section: 서 론mentioning

confidence: 99%

Comparison of Species Composition and Seasonal Variation of Demersal Organisms Caught by Otter Trawl in the Coastal Waters off the Taean Peninsula, in the West Sea of Korea

Jeong¹,

Cha²,

Im³

et al. 2014

Korean Journal of Fisheries and Aquatic Sciences

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“…In Korea, the species distribution caught with a shrimp beam trawl has been investigated off the southern (Oh et al, 2003;Oh, 2010;Song et al, 2012;Park et al, 2013b;Seo et al, 2013) and the western coasts (Park et al, 2013a). Until recently, BRD experiments with shrimp trawls were mainly focused on separating demersal fish from the main shrimp catch and highlighting the fish passing out from the net (Jang et al, 2006;Balzano, 2011, 2013).…”

Section: Effects On Bycatch Reduction In a Shaking Cod End Generated mentioning

confidence: 99%

Effects on bycatch reduction in a shaking cod end generated by canvas in a shrimp beam trawl

Kim¹,

Whang²

2014

Journal of the Korean society of Fisheries Technology

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An active stimulating device, such as a fluttering net or canvas attached to the end of a cod end generating a shaking motion, could help to encourage the escape of juvenile fish positioned passively near the net. Field fishing trials using a shrimp beam trawl were carried out to examine the effect on the reduction of juvenile fish or other discard catch by generating a shaking movement of the cod end using an unbiased cap-like round canvas. The mean period of the shaking motion with the round canvas was -14 s, and the mean amplitude was 0.4 m as measured by peak event analysis and the global wavelet method. The bycatch of juvenile fish in 14 trials decreased by -30% and by -25% using a steady cod end for the total bycatch using a shaking cod end in the shrimp beam trawl, while the marketing catch was similar between steady and shaking cod ends. There was no difference in the body size of the shrimp or fish and species composition between the steady and shaking cod ends. Above results demonstrate a new method for bycatch reduction using an active stimulating device, although more detailed studies are needed.

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Species Composition and Community Structure of Demersal Organisms Caught by Shrimp Beam Trawl in the Coastal Waters of Gunsan of West Sea

Han¹,

Eom²,

Kwon³

et al. 2016

Journal of Fisheries and Marine Sciences Education

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Species composition of aquatic organism in the marine ranching area of Gunsan, Korea were investigated using shrimp beam trawl from May to December in 2010. A total of 91 species, 98,127 ind./ and 877.6 / of aquatic organism were collected. Among them, species were included 60 species in ㎢㎏㎢ Pisces, 21 in Crustacea and 10 in Mollusca. The individual dominant species, occupying over 10% of total individuals, were Latreutes anoplonyx(47,327 ind/ , 48.23%), ㎢ Crangon hakodatei(11,578 ind./ , 11.80%) ㎢ and Trachysalambria curvirostris(10,237 ind./ , 10.40%). And the biomass dominant species, occupying ㎢ over 9% of total biomass, were Paralichthys olivaceus(135 / , 15.4%), ㎏㎢ Okamejei kenojei(98.2 / , ㎏㎢ 11.2%) and Portunus tribuberculatus(84.8/ , 9.6%). From the cluster and MDS analysis based on ㎏㎢ Bray-Curtis similarity matrix of fourth root transformed data of number of species and individuals per unit area collected more than two times during this survey by each month and station was divided into three different groups. Group A showed seasonal similarity of characteristic of distribution in August and November, Group B in December and Group C in May.

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Species composition and community structure caught by shrimp beam trawl in the marine ranching ground of Taean, Korea

Cited by 9 publications

References 7 publications

Comparison of Species Composition and Seasonal Variation of Demersal Organisms Caught by Otter Trawl in the Coastal Waters off the Taean Peninsula, in the West Sea of Korea

Comparison of Species Composition and Seasonal Variation of Demersal Organisms Caught by Otter Trawl in the Coastal Waters off the Taean Peninsula, in the West Sea of Korea

Effects on bycatch reduction in a shaking cod end generated by canvas in a shrimp beam trawl

Species Composition and Community Structure of Demersal Organisms Caught by Shrimp Beam Trawl in the Coastal Waters of Gunsan of West Sea

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