• Korean Journal of Ichthyology
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• v.27 no.3
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• pp.243-248
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• 2015

Based on three scorpionfish specimens (131.8~163.4 mm SL) collected from the coastal waters of Jeju Island, we described Scorpaenopsis neglecta as the first record from Korea. They were characterized by having 12 dorsal fin spines, lacking of palatal teeth and of black pigment between the first and third dorsal fin spines, wider interorbital region than orbital diameter, no median interorbital ridge, uppermost opercular spine with multicusps, and a broad blackish band distally and numerous various sized black spots on inner side of pectoral fin. We proposed a new Korean name, "Ssol-chi-u-reug" for the species.

• Korean Journal of Ichthyology
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• v.26 no.3
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• pp.239-242
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• 2014

A single specimen (196.4 mm standard length) of the scorpaenid Hozukius emblemarinus was collected by a bottom trawl from the coastal waters off Ulsan, East Sea, Southern Korea. The specimen is characterized by a deep oblong body, three spines on the lower margin of the eye, a dorsal fin with 12 spines, a head mostly covered with various sizes of scales, and a truncate posterior margin of the caudal fin. This is the first record of H. emblemarinus in Korea; we therefore add the species to the Korean fish fauna and propose the new Korean name, "Dong-hae-keun-nun-bol-rak" for this species.

• Korean Journal of Ichthyology
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• v.28 no.4
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• pp.283-286
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• 2016

A single specimen (276.9 mm standard length) of the scorpaenid Sebastes glaucus was collected by a gill net from Dokdo, East Sea, Korea. The specimen is characterized by yellowish brown body color, deep body, convex frontal region and nape, board occipital region, 14 spines at dorsal fin, and no scales at maxilla. This is the first record of S. glaucus in Korea; we therefore add the species to the Korean fish fauna. According to the NFRDI (1999), we propose the Korean name, "Cheong-hoebol-rak" for this species.

• Korean Journal of Ichthyology
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• v.9 no.1
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• pp.5-14
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• 1997

The fish fauna was investigated on summer (from July 28 to Aug. 2) and winter (December, 1994) at the Munsom in Cheju-do. As a result of this study, the fishes identified in these areas were classified into 79 species involved in 35 families. And seven species unrecorded in Korea were found, i.e. Halicampus boothae, Cirrhitichthys aprinus, Stegastus altus, Parupeneus sp., Pomacentrus sp., Pomacentrus sp., and Pomacentridae sp. In this region large number species of family Pomacentridae (12 species), family Labridae (9 species), Scorpaeinidae(6 species) and Blennidae (5 species) were observed in summer.

• Korean Journal of Ichthyology
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• v.28 no.2
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• pp.100-109
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• 2016

Species composition and distribution characteristics of fish were determined by monthly underwater visual census from September. 2013 to August, 2014 at Yeongunri off Tongyeong, Korea. The study area was divided into five habitat types by depth and substrate: (1) sand bottom as depth of 0~2 m, (2) seagrass bed of 2~5 m, (3) rocky outcrop of 0~2 m, (4) rocky bottom of 2~5 m, (5) sandy mud bottom of 5~8 m. A total of 1,673 individuals belonging to 43 species in 26 families were recorded during the study period. The number of species tended to decrease after October, 2013 and increase from March, 2014 showing the highest number in October (autumn), and lowest in January (winter). In terms of the number of species, Gobiidae was the most dominant family (7 species), followed by Scorpaenidae (4 species). Embiotocidae was the most abundant (26.1% in total number of individuals), followed by Scorpaenidae (19.9%) and Gobiidae (19.3%). The dominant species were Sebastes inermis (19.2%), Ditrema temminckii (13.1%), and Neoditrema ransonnetii (12.9%). The number of species and abundance were relatively high at the depth between 2 and 5 m on seagrass bed and rocky bottom, whereas they were lower at the depth between 0 and 2 m on the sand bottom, suggesting that seagrass beds and rocky bottoms provided the diverse habitats for various fish species in this sea.

• Korean Journal of Ichthyology
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• v.8 no.1
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• pp.64-73
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• 1996

To determine the fish fauna and their characteristics of the Sohuksando Island located in the South - Western Sea of Korea, samples were collected from June 1993 to August 1995. 128 species belonging to 59 families and 97 genera were identified. Among them the order Perciformes were about 42.2% of total species, as 54 species belonging to 27 families and 44 genera, and order Scorpaeniformes, 19.5%, as 25 species belonging to 8 families and 15 genera. Besides of these groups, order Pleuronectiformes were about 12.5%, as 16 species belonging to 5 families and 13 genera, and order Tetraodontiformes, 6.3%, as 8 species belonging to 3 families and 4 genera. Cypselurus unicolor, Siganus canaliculutus and Tarphops elegans from Sohuksando Island are reported here as first record species from Korea. The unidentified species were Raja sp., Scorpaenopsis sp., Sebastes sp., Entomacrodus sp. and Psettodes sp.. The economic fishes of this area were Raja kenojei, Sebastes schlegeli, Sebastes thompsoni, Lateolabrax japonicus, Nibea albiflora, Argyrosomus argentatus, Pseudosciaena poliactis, Miichthys miiuy, Mugil cephalus, Paralichthys olivaceus, Cynoglossus joyneri and Cynoglossus semilaevis.

• Korean Journal of Ichthyology
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• v.22 no.1
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• pp.34-40
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• 2010

The reproductive ecology of the goldeye rockfish (Sebastes thompsoni) was examined using 421 specimens collected monthly from January to December 2005 in the coastal waters of Busan, Korea. Specimens ranged in standard length (SL) from 13.8 to 31.8 cm. The gonadosomatic index (GSI) of females was highest in March and decreased until June. In males the GSI was the highest in February after that the values declined. The spawning season lasted from January to June, and the ratio of female to male did not differ significantly ($x^2$-test, p>0.05). The length at first spawning was 16.8cm SL, and the size at 50% maturity was estimated at 20.11 cm SL. All females more than 25 cm SL were sexually mature and the egg diameters were from 0.60 to 1.75 mm. Fecundity (F) ranged from 23,881 to 44,509 eggs, with a mean of 30,937 eggs. The relationship between fecundity and standard length was estimated as F=9.3762 $SL^{1.1662}$ ($R^2$=0.81). The relationship between fecundity and body weight (BW) was estimated as F=184.37 Ln (BW) - 665.09 ($R^2$=0.87).

• Journal of fish pathology
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• v.22 no.1
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• pp.75-83
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• 2009

Disease surveillance was performed to monitor the prevalence of fish pathogens in wild marine fish caught in coastal offshore water from February to October in 2008. A total of 401 fish samples were collected at set net or fish market at landing port on the coast of Pohang, Geoje, Yeosu and Jeju. In this study, 17 kinds of fish pathogens were isolated from 152 fish samples. The detection rates of parasites, bacteria or viruses were 21.4%, 17.0% and 2.7%, respectively. The detected parasites were Scutica, Trichodina, Cryptocaryon, Dactylogyrus, Microcotyle, Benedenia, Bivagina, Heteraxin, Caligus, Epistylis and nematode. The dominant bacterial pathogens were Vibrio, Streptococcus, Photobacterium and Psuedomonas. Red sea bream iridovirus (RSIV) and lymphocystis disease virus (LDV) were detected in 6 species of fish virus examined in this study. The detection rates of fish pathogens from Scorpaenidae, Monacanthidae, Pleuronectidae, Sparidae and Carangidae investigated over 30 samples were 59.2%, 48.4%, 34.2%, 30.6% and18.2%, respectively.

• Korean Journal of Ichthyology
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• v.35 no.1
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• pp.50-56
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• 2023

This study is the first to report the biometric information between the length and weight relationships (LWR) and seasonal body condition factors (K) of Sebastes zonatus Chen & Barsukov, 1976 and Thamnaconus modestus (Günther, 1877) inhabiting the waters off Ulleung-do and Dokdo. The LWRs in spring and summer, and all seasons combined were highly correlated (r²>0.959), and the regression slopes of LWRs were significantly different between the spring and summer in both species. The body conditions of the two fish were significantly higher during the spring than during the summer, reflecting their fatness in relation to spawning. The results from this study contribute to the understanding of the biology of S. zonatus and T. modestus and provide useful data for the development of conservation and management plans for these species.

• Korean Journal of Ichthyology
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• v.17 no.1
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• pp.84-87
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• 2005

The fish fauna was investigated in the coastal waters of Ulleungdo by SCUBA diving from 27 to 28 July 2004. We observed a total of 45 species from 22 families, including 6 species in Scorpaenidae and 5 species in Labridae. A total of 33 species were recorded at Station 1, and 15 species were recorded at Station 3. As a result of this study, we newly added 23 species to fish list in the coastal waters of Ulleungdo.