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고리 연안에서 채집된 용가자미 (Hippoglossoides pinetorum)의 식성
허성회,백근욱 한국어류학회 2003 韓國魚類學會誌 Vol.15 No.3
용가자미의 식성을 연구하기 위해 고리 주변해역에서 소형 기선저인망을 이용하여 1996년 1월부터 12월까지 매월 채집된 용가자미의 위내용물을 조사하였다. 용가자미의 가장 중요한 먹이생물은 새우류 (Caridea)였다. 다음으로 난바다곤쟁이류(Euphausiacea)가 비교적 많았다. 그 외에 단각류(Amphipoda), 곤쟁이류(Mysidacea), 두족류(Cephalopoda), 갯지렁이류(Polychaeta), 요각류(Copepoda), 게류(Brachyura), 이매패류(Bivalvia)등의 먹이생물이 위내용물에서 발견되었으나, 그 양은 많지 않았다. 용가자미는 성장함에 따라 먹이생물의 전환이 명확히 나타났는데, 체장 3∼5 ㎝의 작은 크기에서는 난바다곤쟁이류와 곤쟁이류를 주로 먹었다. 하지만 5㎝이상 크기의 개체들은 새우류를 주로 섭이하였으며, 20㎝ 이상의 크기에서는 두족류와 갯지렁이류의 점유율이 증가하는 경향을 보였다. We examined the stomach contents of Hippoglossoides pinetorum collected monthly by a small otter trawl in the coastal waters of Kori, Korea from January to December, 1996. H. pinetorum was a bottom feeding carnivore which consumed mainly shirmps. Its diets also included small quantities of euphausiids, amphipods, mysids, squids, copepods, polychaetes, crabs and bivalves. It showed distinct ontogenetic changes in feeding habits. Small individuals (3-5 ㎝ SL) preyed mainly on euphausiids and mysids. However, individuals over 5 ㎝ SL preyed mainly on shrimps. Individuals of 20-28 ㎝ SL fed relatively large quantities of squids and polychaetes together with shrimps.
Baeck, Gun-Wook,Kim, Ju-Won,Kim, Ki-Hyuk,Jun, Kwan-Yong,An, Geun-Hee,Park, Chan-Il The Korean Society of Fish Pathology 2008 한국어병학회지 Vol.21 No.2
We constructed a black rockfish (Sebastes schlegeli) leukocyte cDNA library and a total of 386 expressed sequence tag (EST) clones were generated. Gene annotation procedures and homology searches of the sequenced ESTs were locally done by BLASTX for amino acid similarity comparisons. Of the 386 EST clones, 199 different ESTs showed significant homology to previously described genes while 97 ESTs were unidentified, hypothetical, or unnamed proteins. Encoding 38 different sequences were identified as putative bio-defense genes or genes associated with immune response.
Baeck, Gun-Wook,Park, Joo-Myun,Hashimoto, Hiroaki The Korean Society for Integrative Biology 2011 Animal cells and systems Vol.15 No.4
Feeding ecology was compared among the three tonguefishes Cynoglossus abbreviatus, C. joyneri and C. robustus, collected from Seto Inland Sea, Japan, from June 2000 to May 2001. They are benthivores, consuming mainly gammarid amphipods, shrimps, crabs, gastropods, bivalves and ophiuroids. C. abbreviatus consumed greater proportions of ophiuroids whereas C. joyneri and C. robustus ate more amphipods and shrimps. While C. abbreviatus consumed mostly ophiuroids in all size classes, the diets of C. joyneri and C. robustus showed ontogenetic changes in feeding habits; smaller individuals of C. joyneri and C. robustus consumed gammarid amphipods, whereas larger C. joyneri ate shrimps and gastropods, and larger C. robustus fed mainly on gastropods, crabs, bivalves and polychaetes. Cluster analysis based on diet similarities emphasized that the three Cynoglossus species could be categorized on a size-related basis into three feeding groups: smaller C. joyneri and C. rubustus (<25 cm TL) could be classified as group A, and the larger of them (>25 cm TL) as group B, whereas C. abbreviatus was categorized as group C. This means that some degree of resource partitioning can occur among the three Cynoglossus species. The seasonal changes in the diets were also significant for the three Cynoglossus species.
Maturation and Spawning of Robust Tonguefish (Cynoglossus robustus (Soleidae; Teleostei)
Baeck, Gun Wook,Kim, Jae Won 한국수산학회 2004 Fisheries and Aquatic Sciences Vol.7 No.3
We examined the ovaries of 312 robust tonguefish (Cynoglossus robustus) collected each month from January to December 2001, off the coast of Yeosu, Korea.The samples were used to investigate robust tonguefish reproductive activity. Monthly changes in the gonadosomatic indexindicated that spawning peaked between June and August. Fish size at first spawning was 15-19 cm total length (TL). Over 50% of female fish 25-29 cm TL were sexually mature, and this rose to 100% for female fish 35-39 cm TL. The tonguefish spawned four or more times during the spawning season. Most females commenced spawning in their second year. The relationship between total length (cm TL) and fecundity (F) was F=528646Ln(TL)-1E+06.
통영 연안에 출현하는 쏨뱅이(Sebastiscus marmoratus)의 식성
백근욱 ( Gun Wook Baeck ),여영미 ( Yeong Mi Yeo ),정재묵 ( Jae Mook Jeong ),박주면 ( Joo Myun Park ),허성회 ( Sung Hoi Huh ) 한국어류학회 2011 韓國魚類學會誌 Vol.23 No.2
The feeding habits of scorpion fish, Sebastiscus marmoratus, were studied using 324 specimens collected in the coastal waters of Tongyeong, from January to December, 2009. The size of the specimens ranged from 9.8 to 30.1 cm in standard length (SL). S. marmoratusis was a piscivore that consumed mainly teleosts such as Engraulis japonicus, Clupea pallasi and gobid fishes. Of the fish species Engraulis japonicus was the most preferred prey. Its diet also includes shrimps and crabs. Hermit crabs, polychaetes, bivalves and euphausia were minor preys. Smaller individuals (<13 cm SL) fed mainly on shrimps, crabs and fishes. The proportion of shrimps and crabs decreased as body size increased, whereas the consumption of fishes gradually increased. Fishes accounted for almost stomach contents of larger individuals (more than 19 cm SL). Seasonal changes in the S. marmoratusis diet were significant. Fishes was most common prey during summer, autumn and winter, whereas crabs and shrimps were mainly consumed during spring.
고리 주변해역에서 출현하는 웅어(Coilia nasus)의 위내용물 조성
백근욱 ( Gun Wook Baeck ),박주면 ( Joo Myun Park ),추현기 ( Hyun Gi Choo ),허성회 ( Sung Hoi Huh ) 한국어류학회 2011 韓國魚類學會誌 Vol.23 No.2
The feeding habits of Coilia nasus were studied using 107 specimens collected from January to December 2005 in the coastal waters off Gori, Korea. The size of C. nasus ranged from 8.4 to 29.5 cm in standard length (SL). C. nasus was a carnivore that mainly consumed shrimps and copepods. Its diet also included small quantities of amphipods, euphausiids and chaetognaths. The feeding strategy graphical method reveled than C. nasus was specialized feeder and showed narrow niche width. Both small and large size class of C. nasus mainly consumed shrimps and copepods, and did not showed significant size-related changes in feeding habits. However, the mean number and weight of preys per stomach was higher than large size class than small size class.