• 한국수산과학회지
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• 제44권4호
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• pp.378-382
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• 2011

The feeding ecology of bluefin searobin Chelidonichthys spinosus around Jeju Island was examined. Specimens were caught every autumn from 2004 to 2007. The primary prey items of C. spinosus included fish, shrimp, and crabs. Chelidonichthys spinosus preyed upon a wide range of sub-pelagic crustacean groups(e.g., Leptochela gracilis, Leptochela sydniensis). This species was also an opportunistic feeder, exploiting the available prey groups in each area(i.e., L. gracilis in the South Sea and East China Sea groups and L. gracilis and L. sydniensis in the Yellow Sea group). The main prey group of this species changed from demersal shrimp to pelagic shrimp with prey environmental changes. Observed ontogenetic shifts in diet were relatively clear despite substantial overlap between the 10 cm and 20 cm C. spinosus groups.

• 한국어류학회지
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• 제19권1호
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• pp.51-56
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• 2007

2005년 1월에서 12월까지 부산 주변해역에서 채집한 출현하는 성대(Chelidonichthys spinosus) 646개체의 위 내용물을 분석하였다. 성대의 주 먹이생물은 대롱수염새우 (Solenocera melantho), 둥근돗대기새우(Leptochela sydniesis), 꽃새우(Trachthysalambria curvirostris) 같은 새우류(Macrura)였으며, 게류(Brachyura)와 어류(Pisces) 등도 섭이하였다. 체장 25cm 이하의 비교적 작은 개체는 둥근돗대기새우, 게류, 어류 등을 주로 섭이하였고, 25 cm 이상의 큰 개체는 대롱수염새우, 꽃새우 같은 큰 크기의 새우류를 주로 섭이하였다. 성대의 먹이생물 크기는 성대의 체장이 증가함에 따라 증가하는 경향을 보였다.

• 한국수산과학회지
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• 제49권6호
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• pp.883-888
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• 2016

We investigated fish species composition seasonally at the intake and discharge of Weolseong Nuclear Power Plant (WS-NPP) from February to November 2008 using a trammel net. At the intake, 121 individuals belonging to 28 species were collected, and 157 fish from 34 species were sampled at the WS-NPP discharge. Dominant species at the intake were Chelidonichthys spinosus (17.2%), Scomber japonicus (11.5%) and Ditrema temminckii (8.2%) at the intake, while Sillago japonica (18.5%), Chelidonichthys spinosus (13.4%) and Konosirus punctatus (8.3%) dominated at the discharge. The species count and diversity index at the discharge were highest during winter, whereas those at the intake were highest during spring, perhaps due to warm seawater at the discharge site. This study is the first to reveal an effect of effluent water on the aggregation of warm water fish species during winter.

• 한국어류학회지
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• 제22권3호
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• pp.186-194
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• 2010

2006년 1월에서 12월까지 매월 삼각망에 의해 채집된 어류의 종조성의 계절변동을 분석하였다. 조사기간 동안 35과에 속하는 59종의 어류가 채집되었다. 우점종은 대부분 부 어류로 전갱이 (Trachurus japonicus), 숭어 (Mugil cephalus), 전어 (Konosirus punctatus), 열동가리돔 (Apogon lineatus), 성대 (Chelidonichthys spinosus), 망상어 (Ditrema temmincki), 조피볼락 (Sebastes schlegeli) 그리고 줄도화돔 (Apogon semilineatus)이었는데, 이들 8종은 전체 채집 개체수의 92.7%를 차지하였다. 본 조사해역의 채집된 어류는 뚜렷한 계절 변동을 보였는데 개체수는 12월, 생체량은 3월에 가장 높은 값을 보였고, 수온이 낮은 겨울철에 개체수와 생체량이 모두 낮은 값을 보였다. 종다양도지수는 12월에 다른 계절에 비해 가장 낮은 값을 나타내었다.

• 한국수산과학회지
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• 제50권4호
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• pp.429-436
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• 2017

The seasonal and interannual variations in fish assemblages in the coastal waters off Gijang were examined with an otter trawl from 2015 to 2016. A total of 59 fish species was collected during the study period. The dominant species were Caelorinchus multispinulosus, Clupea pallasii pallasii and Chelidonichthys spinosus. Seasonal changes in fish assemblages appeared to be distinct in the study area. The fish assemblages in summer and autumn were clearly distinguishable from those in other seasons, and the largest numbers of species and individuals were captured in winter and summer, respectively. Because fish assemblages are closely related to changes in water temperature, long-term changes in water temperature can have a significant impact on the productivity of offshore fisheries by changing fish species composition, habitat migration, and growth rate of fish.

• 수산해양기술연구
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• 제59권3호
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• pp.242-252
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• 2023

In this study, we aimed to determine the seasonal distribution and biomass of fish in Samcheok marine ranching area (MRA) of Republic of Korea using the scientific echosounder. Fish trap and gillnets were used to identify fish species in the survey area, and dB-difference method was used to estimation the spatio-temporal distribution and density of fish. The results showed that the dominant species in Samcheok marine ranching area were Chelidonichthys spinosus, Sebastes inermis, Hexagrammos otakii and Tribolodon hakonensis. The spatio-temporal distribution of fish showed that fish had a relatively higher distribution at night than during the day. In addition, the density of fish by season was highest at night in July at 34.22 g/m² and lowest in April at 0.42 g/m².

• 수산해양기술연구
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• 제59권1호
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• pp.9-18
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• 2023

Fish samples were collected by a set net from April to December 2020 at the coastal waters off Tongyeong, Korea to determine fish species composition and seasonal variation. A total of 330,675 fish (1,032,578 g) representing 56 species belonging to 39 families were collected during the sampling period. The dominant species were Engraulis japonicus, Trachurus japonicus and Trichiurus japonicus, which accounted for 98.1% of the total number of individuals and 87.5% of the total biomass collected. E. japonicus and Chelidonichthys spinosus appeared every month off the coast of the Tongyeong. Cluster analysis based on the number of individuals of fish were classified into two groups at the dissimilarity level of 57%, and the results of ANOSIM analysis revealed significant differences in community structure among the two groups.

• 수산해양기술연구
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• 제51권4호
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• pp.630-636
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• 2015

The study aims at analyzing a species composition of the fish live in bottom of the coastal waters off Sejon island, Korea. To reach the goal of the study, a species composition and it's seasonally fluctuation, a seasonally fluctuation of the dominant species and it's appearance type were analyzed with the fishes caught by the bottom trawl in the coastal waters off Sejon island from May, 2011 to March, 2012. The results obtained can be summarized as follows; Fish caught in this area composes 10 orders, 25 families, and 37 species. The most dominant species in an number of fish was Pennahia argentata which was occupied at 42.1% from the whole number, the second most dominant species was Konosirus punctatus which was occupied at 14.2%. The most dominant species in a biomass of fish was Pennahia argentata which was 31.3% out of the whole catch, the next dominant species was Lophius litulonwhich which was 18.2%. The first group (Trichiurus lepturus, Zeus faber, Pennahia argentata, Chelidonichthys spinosus and Lophius litulon) was appeared at May, August, October, the second group (Sphyraena pinguis) was appeared at May and November, the third group (Pampus argenteus) was appeared at August, the fourth group (Pampus echinogaster, Leiognathus nuchalis, Konosirus punctatus and Engraulis japonicus) was appeared at March.

• 한국수산과학회지
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• 제54권3호
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• pp.329-339
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• 2021

The monthly variation in species composition of fishes in the Gujora and Mangchi coastal waters in Geoje, Korea, was investigated between June 2018 and May 2019 through monthly fish collections using a gill net. A total of 46 species, numbering 410 individuals weighing a total of 96,645.0 g, were collected during the study period. The dominant species in terms of numbers were Chelidonichthys spinosus, Stephanolepis cirrhifer, Ditrema temmincki, Sillago japonica, Sebastes inermis, and Paraplagusia japonica. The number and biomass of fishes peaked in July. The peak in species diversity indices occurred in September. The cluster analysis revealed that there were four groups of fishes depending on the season. In addition, subtropical fishes were recorded in the study area, indicating the gradual subtropicalization of the coast of Geoje. Furthermore, the need to understand the changes in marine ecosystems owing to subtropicalization through continuous monitoring is emphasized.

• 한국어류학회지
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• 제21권3호
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• pp.177-190
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• 2009

2007년 가을부터 2008년 가을까지 낙동강 하구 연안에서 출현한 생물은 93과 169종이었으며, 그 중 갑각류가 43종 그리고 어류가 99종으로 나타났다. 봄에 가장 다양한 종들이 나타났으며, 가을과 겨울은 출현하는 종수가 상대적으로 적었다. 단위면적당 개체수는 2008년 겨울이 가장 낮았으며, 2008년 여름에 가장 높았다. 분류군별 단위면적당 개체수의 어획비율은 갑각류가 3.8~64.5%, 극피동물류가 0.7~2.6%, 두족류가 1.8~10.1%, 복족류가 6.7~28.9%, 어류가 19.4~71.9% 그리고 이매패류가 1.7~8.0%를 차지하였다. 단위면적당 어획중량은 2008년 봄이 가장 낮았으며, 2008년 가을에 월등히 높게 나타났다. 단위면적당 어획중량의 비율을 보면 어류가 70.6~92.1%를 차지하였으며, 나머지 분류군이 약 30~8%를 차지하였다. 단위면적당 출현 개체수가 많은 종은 반딧불게르치, 열동가리돔, 갈색고리돼지고둥, 마루자주새우 등이었으며, 단위 면적당 높은 어획량을 나타내는 종들은 성대, 황아귀, 홍어, 반딧불게르치 등이었다. 낙동강 하구 연안해역에서 조사된 어종들의 계절별 출현 특성에 따라 18개의 그룹으로 분류되었으며, 각 계절의 출현 종에 따른 유사도는 2007년 가을과 2008년 가을이 가장 유사하였으며, 다음으로 2008년 봄과 여름이 유사한 것으로 나타났다. 조사 기간 동안 지속적으로 어획된 어종들은 총 29종으로 갑각류 9종, 두족류 2종, 그리고 어류 18종이었다. 마루자주새우, 반딧불게르치, 성대, 열동가리돔, 홍어, 황아귀 등 연구해역에서의 주서식종들이 단위면적당 개체수와 어획량 면에서 계절에 따라 이동하는 종들에 비하여 월등히 높았다.