• Title/Summary/Keyword: intertidal fish

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Feeding Habits of Acanthogobius luridus Inhabiting the Intertidal Zone of the Western Coast of Korea (서해연안 조간대에 서식하는 비늘흰발망둑, Acanthogobius luridus의 식성)

  • 김종연
    • Journal of Aquaculture
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    • v.13 no.4
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    • pp.309-316
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    • 2000
  • Feeding habits of A. luridus were studied by analyzing the stomach contents of monthly collected fish from the intertidal zone of Dodun-ri, Sochon from July 1996 to June 1997. Fullness of stomach increased twice a day, first in the morning and second in the afternoon. A. luridus (1.2-5.9 em in standard length) was a carnivore consuming mainly decapods (natantia larvae, Acetes japonicus, Penaeus japonicus and reptantia larvae), amphipods (caprellids, gammarids and hyperiids) and copepods (Acartia sp., Calanus sinicus, Corycaeus affinis, and Microsetella sp.). Its diets also included minor quantities of isopods, cirriped larvae, polychaete larvae and stomatopods. According to fish size, some changes in feeding habits were apparent, i.e. smaller fish preferred to prey in the following order : copepods < decapods < amphipods. However, as the size increased, decapods and amphipods were selected.

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Ichthyofauna at the Intertidal Zone in Seonyu-do Island, Gogunsan Islands, West Sea of Korea (서해 고군산군도 선유도의 조간대 어류상)

  • Yu Sin Shin;Jae-Goo Kim
    • Korean Journal of Ichthyology
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    • v.36 no.2
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    • pp.164-173
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    • 2024
  • We collected fish from the intertidal zone of Seonyu-do Island in order to find out the composition of fish species by using hand net and kick net from March to October 2022. During the investigation period, a total of 2,707 individuals from 9 Orders, 19 Families, 45 Species were collected, and the dominant species was identified as Nuchequula nuchalis and the subdominant species was Favonigobius gymnauchen. By family group, the largest number of fishes in the Gobiidae were 13 species, followed by the Scorpaenidae and the Stichaeidae were 4 species. In this study, genus Clariger was discovered for the first time off the West sea, and it is estimated that fish living on the southern coast are moving northward due to an increase in the water temperature of the West Sea and detailed research is needed.

Ichthyofauna of the Intertidal Zone around the Nuclear Power Plants off Sinweolseong, Eastern Coast, Korea (동해 신월성 원자력발전소 주변의 조간대 어류상)

  • Choi, Youn;Lee, Heung-Heon;Jang, Jun-Ho
    • Korean Journal of Ichthyology
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    • v.20 no.4
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    • pp.313-317
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    • 2008
  • An investigation of the intertidal fish fauna was carried out based on the specimens collected at Sinweolseong on the eastern coast of Korea from February 2006 to October 2007. The collected fishes comprised 27 species belonging to 22 genera, 15 families and 5 orders. Family Cottidae was the most abundant in species and individuals, with Furcina osimae the most representative species in the sampling area. Hexagrammos agrammus appeared throughout the year, while Chaenogobius annularis and C. gulosus predominated. In addition, Zoarchias glaber and Goniistius zonatus, which were distributed on Jeju Island and the South Sea of Korea, were first recorded from this area.

Food Organisms of Fingerlings of Acentrogobius elongata Inhabited at Intertidal Zone of the Western Coast of Korea

  • Kim, Jong-Yeon;Jo, Soo-Gun;Yoon, Jong-Man
    • Proceedings of the Korean Aquaculture Society Conference
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    • 2003.10a
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    • pp.93-94
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    • 2003
  • To investigate the food organisms of the Acentrogobius elongata during the juveniles stage, the stomach contents of fish, captured in the intertidal zone of Chungchongnam-do Sochon-gun Su-myon Dodun-ri between on early in June from the end of May 2000, were observed. Total length of the fingerings of A. elongata was 1.0~3.0cm size, and the participation rate of feeding was 68.6%. Main food organisms were such as copepods, shrimp larvae, polychaete larvae, and these occupied more than dry weight 4%. Copepods among them dominated the most quantitys by average 64.6%, and food organismsms appeared by order of polychaete larvae and shrimp larvae etc.. Therefore, most important food organisms of fingerlings stage of A. elongata were copepods, polychaete larvae, shrimp larvae etc.

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Food Organisms of Juveniles of Tridentiger trigonocephalus Inhabited at Intertidal Zone of the Western Coast of Korea

  • Kim, Jong-Yeon;Jo, Soo-Gun;Yoon, Jong-Man
    • Proceedings of the Korean Society of Fisheries Technology Conference
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    • 2002.05a
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    • pp.359-360
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    • 2002
  • To investigate the food organisms of the Tridentiger trigonocephalus during the juveniles stage, the stomach contents of fish, captured in the intertidal zone of Chungchongnam-do Sochon-gun Su-myon Dodun-ri between on early June from end if may 1999, were observed. Total length of the juveniles of T. trigonocephalus was 5.5mm∼9.0mm size, and the participation rate of feeding was 68.5%. Main food organisms were such as copepods, amphipods, shrimp larvae, polychaete larvae, and these occupied more than dry weight 2%. Copepods among them dominated the most quantitys by average 67.5%, and next, food organismsms appeared much by order of polychaete larvae and shrimp larvae etc.. Therefore, most important food organisms of juvenile stage of T. trigonocephalus were copepods, polychaete larvae, shrimp larvae etc.

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Food Organisms of juveniles of Acanthogobius hasta Inhabited at Intertidal Zone of the Western Coast of Korea

  • Kim, Jong-Yeon;Yoon, Jong-Man
    • Proceedings of the Korean Aquaculture Society Conference
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    • 2005.05a
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    • pp.80-81
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    • 2005
  • To investigate the food organisms of the Acanthogobius hasta during the juveniles stage, the stomach contents of fish, captured in the intertidal zone of Chungchong- nam-do Sochon-gun Su-myon Dodun-ri (Fig. 1) between on early June from end of May 2003, were observed. Total length of the juveniles of A. hasta was 5.5 mm ${\sim}$ 8.9 mm size, and the participation rate of feeding was 69.6%. Main food organisms were such as copepods, decapods, polychaete larvae, amphipods and these occupied more than dry weight 3.9%. Copepods among them dominated the most quantitys by average 62.7%, and next, food organisms appeared much by order of decapods, polychaete larvae and amphipods etc.. Therefore, most important food organisms of juvenile stage of A. hasta were copepods, decapods, polychaete larvae, amphipods etc.

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Food Organisms of juveniles of Chaenogobius mororanus Inhabited at Intertidal Zone of the Western Coast of Korea

  • Kim, Jong-Yeon
    • Proceedings of the Korean Aquaculture Society Conference
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    • 2005.05a
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    • pp.82-83
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    • 2005
  • To investigate the food organisms of the Chaenogobius mororanus during the juveniles stage, the stomach contents of fish, captured in the intertidal zone of Chungchong- nam-do Sochon-gun Su-myon Dodun-ri (Fig. 1) between on early June from end of May 2003, were observed. Total length of the juveniles of C. mororanus was 5.0 mm ${\sim}$ 8.4 mm size, and the participation rate of feeding was 71.4%. Main food organisms were such as copepods, decapods, polychaete larvae, amphipods and these occupied more than dry weight 3.9%. Copepods among them dominated the most quantitys by average 62.0%, and next, food organisms appeared much by order of decapods, polychaete larvae and amphipods etc.. Therefore, most important food organisms of juvenile stage of C. mororanus were copepods, decapods, polychaete larvae, amphipods etc.

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Food Organisms of Juveniles of Tridentiger of trigonocephalus Inhabited at Intertidal Zone of the Western Coast of Korea

  • Kim, Jong-Yeon;Jo, Soo-Gun;Yoon, Jong-Man
    • Proceedings of the Korean Aquaculture Society Conference
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    • 2002.08a
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    • pp.225-226
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    • 2002
  • To investigate the food organisms of the Tridentiger trigonocephalus during the juveniles stage, the stomach contents of fish, captured in the intertidal zone of Chungchongnam-do Sochon-gun Su-myon Dodun-ri getween on early June from end of May 1999, were observed. Total length of the juveniles of T. trigonocephalus was 5.5mm∼9.0mm size, and the participation rate of feeding was 68.5%. Main food organisms were such as copepods, shrimp larvae, polychaete larvae, and these occupied more than dry weight 2%. Copepods among them dominated the most quantitys by average 67.5%, and next, food organismsms appeared much by order of polychaete larvae and shrimp larvae etc.. Therefore, most important food organisms of juvenile stage of T. trigonocephalus were copepods, polychaete larvae, shrimp larvae etc.

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Food Organisms of Juveniles of Chasmichthys dolichognaths Inhabited at Intertidal Zone of the Western Coast of Korea

  • Kim, Jong-Yeon
    • Proceedings of the Korean Society of Fisheries Technology Conference
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    • 2001.05a
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    • pp.565-566
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    • 2001
  • To investigate the food organisms of the Chasmichthys dolichognathus during the juveniles stage, the stomach contents of fish, captured in the intertidal zone of Chungchongnam-do Sochon-gun Su-myon Dodun-ri between on early June from end of May 1998, were observed. Total length of the juveniles of C. dolichognathus was 6.5mm ∼10.0mm size, and the participation rate of feeding was 67.7%. Main food organisms were such as copepods, amphipods, shrimp larvae, polychaete larvae, and these occupied more than dry weight 2%. Copepods among them dominated the most quantitys by avergage 65.5%, and next, food organismsms appeared much by order of polychaete larvae and shrimp larvae etc. Therefore, most important food organisms of juvenile stage of C. dolichognathus were copepods, polychaete larvae, shrimp larvae etc.

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Tide-pool Fishes from Saemangeum Waters (새만금 해역 조수 웅덩이의 어류)

  • Choi, Youn;Lim, Hwan-Cheol;Ra, Hye-Kang;Yang, Jae-Sam;Choi, Kang Won
    • Korean Journal of Ichthyology
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    • v.17 no.2
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    • pp.142-147
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    • 2005
  • To research changes in the fish community of intertidal zones in relation to the construction of the Saemangeum tidal embankment, fishes were collected in the tide pools of Naechodo, Gunsan-si, and of Haechang, Buan-gun in Jeollabuk-do, every month from December 2002 to October 2004. Based on the fishes collected and data from previous studies show that in the tide pools of Haechang, the number of species decreased, and the dominant species is Tridentiger trigonocephalus, as before. However, in the tide pools of Naechodo, the number of species decreased, and the dominant species changed from T. trigonocephalus to Synechogobius hasta. Favonigobius gymnauchen, which inhabits sand-beds, decreased remarkably. Meanwhile, in the intertidal zone of Haechang, young black porgy were caught in large quantities, while in the intertidal zone of Naechodo, young Acanthopagrus schlegelii and Lateolabrax japonicus, which had been caught in a large amounts between 1994 and 2000, were not caught. The results are thought to show that the intertidal zone of Naechodo, Gunsan-si, had more deposits by tide flats than that of Haechang, Buan-gun, which drastically changed the habitat of its fish community.