• Title/Summary/Keyword: Eualus leptognathus

Search Result 3, Processing Time 0.019 seconds

First Zoeas of Eualus leptognathus (Decapoda: Caridea: Hippolytidae) Hatched in the Laboratory

  • Yang, Hoi-Jeong;Kim, Won
    • Animal Systematics, Evolution and Diversity
    • /
    • v.22 no.2
    • /
    • pp.117-120
    • /
    • 2006
  • The first zoeas of Eualus leptognathus are described and illustrated in detail from laboratory-hatched material. Morphological comparison is made with previous description of this species from Japan. Minute rostrum and two anteroventral denticles behind pterygostomian spine on the carapace readily distinguish the first zoeas of Eualus leptognathus from those of Eualus sinensis, the only known zoeas of Eualus from Korean waters.

Two Hippolytid Shrimps of the Genus Eualus (Crustacea: Decapoda: Caridea) from Korea

  • Kim Jung-Nyun;Choi Jung-Hwa;Ma Chae-Woo
    • Fisheries and Aquatic Sciences
    • /
    • v.9 no.2
    • /
    • pp.83-90
    • /
    • 2006
  • This paper provides descriptions and illustrations of two hippolytid shrimps, Eualus macilentus ($Kr{\phi}yer$, 1841) and E. leptognathus (Stimpson, 1860). This is the first record of E. macilentus collected in Korean waters; it was found in the East Sea at a depth of 300 m. Eualus leptognathus has been collected previously from various locations in southern and eastern Korea, but no detailed description has been reported. This study provides a key to the six species of Eualus in Korean waters.

Seasonal Variation of Shrimp (Crustacea : Decapoda) Community in the Eelgrass (Zostera marina) Bed in Kwangyang Bay, Korea (광양만 잘피밭에 서식하는 새우류 군집의 계절 변동)

  • HUH Sung-Hoi;AN Yong-Rock
    • Korean Journal of Fisheries and Aquatic Sciences
    • /
    • v.30 no.4
    • /
    • pp.532-542
    • /
    • 1997
  • Seasonal variation of a shrimp community in the eelgrass (Zostera marina) bed in Kwangyang Bay, Korea was studied based on the monthly collected samples through a year of 1994. The shrimp community in the eelgrassbed was composed of 26 species of shrimps representing 6 families. The community was dominated by Heptacarpus pandaloides, Crangon affinis, Eualus leptognathus, Latreutes acicularis, Heptacarpus rectirostris, Heptacarpus geniculatus, and Latreutes laminirostris. Most of species were the small-sized species with carapace length smaller than 25 mm. The peak abundance occurred in the late winter and spring and low abundances in autumn. More than 10 species were collected every month except lull (8 species). Species diversity indices showed that the shrimp species were more diverse during the late summer, and lesser during the late autumn. Predominance of Crangon affinis in the late autumn caused such a low diversity. The shrimps in the study area could be grouped into three groups on the basis of their occurrence patterns: resident species, seasonal species, and temporary species. More abundant and more diverse shrimps were collected during nighttime than daytime.

  • PDF