• 제목/요약/키워드: Hemigrapsus penicillatus

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풀게 Hemigrapsus penicillatus(게아목, 바위게과)의 zoea 및 megalopa 유생기 (Zoeal Stages and Megalopa of Hemigrapsus penicillagtus(De Haan, 1835) (Decapoda, BRachyura, Grapsidae) Reared in the Laboratory))

  • Sang-Gu Hwang;Chang-Hyun Kim
    • Animal Systematics, Evolution and Diversity
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    • 제11권3호
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    • pp.389-408
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    • 1995
  • 풀게의 유생을 수온 25$^{\circ}C$, 염분농도 33.3$\textperthousand$, 광주기 14:10 h light:dark 의 실험실 조건하에서 사육하였다. 사육 결과 본 종은 5 zoea와 1 megalopa 유생기를 가지며, 부화 후 megalopa와 제1기 crab까지는 최소 18일과 29일이 걸렸다. 전체 유생기의 형태적인 특징을 상세히 기술 및 도시하였다. 풀게 유생과 참게아과내의 이미 보고된 유생 상호간에 구별될 수 있는 형태적인 특징들에 대하여 토의하였다. 특히, 풀게속의 megalopa 유생 상호간 형태적 특징을 도표화하였다.

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New Report of the Varunid Crabs, Hemigrapsus takanoi and Sestrostoma toriumii (Crustacea: Decapoda: Varunidae) from Korea

  • Lee, Sanghui;Lee, Sang-Kyu;Rho, Hyun Soo;Kim, Won
    • Animal Systematics, Evolution and Diversity
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    • 제29권2호
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    • pp.152-159
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    • 2013
  • As a result of continuous taxonomic studies on the Korean crabs, two varunid crabs, Hemigrapsus takanoi Asakura and Watanabe, 2005 and Sestrostoma toriumii (Takeda, 1974), are newly reported from Korean waters. Hemigrapsus takanoi, as a sibling species of H. penicillatus, has not been recognized in Korean waters, and this species occurs in the sympatric habitat with H. penicillatus in the Korean peninsula. Sestrostoma toriumii (Takeda, 1974) is associated with thallassinid Upogebia major (De Haan, 1841) and echiuran Urechis unicintus (Von Drache, 1881) as the case of S. balssi (Shen, 1932). The Korean S. toriumii showed smaller size than those mentioned in the original description. Their illustrations and pictures are provided with descriptions, and the distributions of these species in the Korean peninsula are also provided.

Complete Larval Development of Hemigrapsus longitarsis (Miers, 1879) (Crustacea, Decapoda, Grapsidae), with a Key to the Known Grapsid Zoeas of Korea

  • Park, Young-Sook;Ko, Hyun-Sook
    • Animal cells and systems
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    • 제6권2호
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    • pp.107-123
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    • 2002
  • One ovigerous crab of Hemigrapsus longitarsis (Miers, 1879) was collected in Jeju Island, Korea and their larvae were reared in the laboratory. Five zoeal and one megalopal stages are described and illustrated in detail. Morphology of the zoeas slightly differs from that in the previous record. Within the genus Hemigrapsus, H. longitarsis shows similarity closer to H. sanguineus and H. penicillatus than to H. sinensis based on the zoeal morphology. The zoeas of H. longitarsis can be distinguished from those of the two other species in having a dorsal carapace spine with minute spinules which is naked in H. sanguineus and H. penicillatus. A provisional key is provided to aid the identification of the grapsid zoeas in Korea.

Morphological Study of the Digestive Tract of the Mud Crab (Hemigrapsus Penicillatus De Haan) and the Symbiotic Crab (Pinnotheres cyclinus Shen)

  • Moon, Young-Wha;Kim, Han-Hwa
    • Animal cells and systems
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    • 제3권4호
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    • pp.407-412
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    • 1999
  • The influence of eating habits and food type on the ultrastructural characteristics of the digestive tracts was studied under the scanning and transmission electron microscopes in two crustacean decapods (Hemigrapsus penicillatus De Haan; mud crab, Pinnotheres cyclinus Shen; symbiotic crab). The relative ratio of the length of midgut versus hindgut was 1:1 in the mud crab, but 4:1 in the symbiotic crab. Observation through the scanning electron microscope revealed that the midguts of both species have densely-arranged longitudinal mucosal folds with a smooth surface. In the hindgut of the mud crab, mucosal folds were longitudinally oriented, clusters of two to five spines were observed on the cuticular surface, and the length of the spine in the distal hindgut was longer than that in the proximal portion. In the symbiotic crab, the mucosal folds were irregulary arranged, and numerous rudimentary spinal structures were noted on the cuticular surface. Through observation of a transmission electron microscope, the epithelial cells of the midgut in both species had numerous microvilli, but the length of the microvilli was slightly longer in the mud crab than in the symbiotic crab. The central layer of the basement membrane and the muscular layer of the midgut were more developed in the mud crab than in the symbiotic crab. The thickness of the cuticular layer over the hindgut surface in the mud crab was about 4 times than that of the symbiotic crab.

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

  • 허성회;안용락
    • 한국수산과학회지
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    • 제31권4호
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    • pp.535-544
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    • 1998
  • 광양만 잘피밭에 서식하는 게류 군집의 종조성과 계절 변동을 알아보기 위해 1994년 1월부터 1994년 12월까지 1년간 소형 저인망을 이용하여 대도 주변의 잘피밭에서 게류를 매월 채집하였다. 조사기간 동안 잘피밭에서 채집된 게류는 12과 21종이었다. 우점종은 Charybdis Japonica, Telmessus acutidens, Hemigrapsus penicillatus, Pugettia quadridens로 나타났다. C. japonica와 T. acutidens 를 제외한 대부분의 게류는 갑각폭이 25mm 이하의 작은 크기 였다. 출현 종수의 계절 변동을 보면, 겨울에는 적은 종수가 출현하였으나, 나머지 계절에는 비교적 많은 종수가 출현하였다. 채집 개체수 및 생체량의 경우 수온이 높은 시기에 많은 출현량을 보인 반면, 수온이 낮은 시기에는 적은 출현량을 보였다. 잘피밭에서 채집된 게류는 출현 양상에 따라 주거종, 계절종 및 일시방문종으로 나눌 수 있었다. 주간 채집과 야간 채집을 비교한 결과, 야간에 더욱 다양하고 많은 게류가 출현하였다.

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Decapod Crustaceans of Dokdo Island, Korea

  • Hong Byung-Kyu;Kim Mi-Hyang;Kim Jung-Nyun;Jeon Kyeong-Am
    • 한국수산과학회지
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    • 제39권spc1호
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    • pp.252-258
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    • 2006
  • Thirteen decapod crustaceans of Dokdo Island were identified and classified based on samples collected around Dokdo Island from May 1999 to November 2004. Of the 13 species, 7 were unrecorded from Dokdo Island: Axiopsis princeps, Pagurus angustus, Pagurus japonicus, Pagurus nigrivittatus, Pagurus spina, Portunus trituberculatus, and Hemigrapsus penicillatus. Of these 7 species, Pagurus nigrivittatus and Pagurus spina were new to the Korean decapod fauna. However, P. spina was only reported as the type series from the Pacific coast of northern Japan. Its geographic range now extends to the East Sea. To date, 25 decapod crustaceans (1 caridean, 1 thalassinidean, 11 anomurans, and 12 brachyurans) have been reported from Dokdo Island.

망지에 대한 풀게(Heyhigrapsus penirillatus)의 보행운동 (The Gaiting Behaviour of the Grass Crab, Hemigrapsus penicillatus on the Nettings)

  • 김용해;고관서
    • 한국수산과학회지
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    • 제20권3호
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    • pp.177-184
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    • 1987
  • 통발과 자망 등에 어획되는 게류의 측면적인 보행운동은 매우 특이하여 어획 메카니즘을 밝히는데 매우 중요한 요소가 된다. 여기서는 해운대 동백섬의 조간대에서 채집한 풀게를 사용하여 망지위에서의 직선적인 운동과 회전 운동 등을 관찰하고 다리의 보행위치와 시간적인 변화를 분석하였다. 그 결과 망지위에서의 보행운동은 착지위치에 따라 그물코 사이로 다리가 빠지게 되는 불규칙적인 움직임이 대부분이므로 여러가지 보행 요인들의 편차가 게의 크기에 관계 없이 크게 나타났다. 풀게의 망지위에서의 보폭, 보행속도, 다리간의 위상차 등은 평면에서 보다 훨씬 작았으나, 보행주기, 다리마디간의 각도 등은 평면에서 보다 양간 증가하였다. 따라서 게가 자망에 걸리는 현상은 게의 크기에 따른 다리의 보행운동과 망지의 망목크기 등을 고려하여 세밀하게 조사되어야 할 것이다.

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영종도 소형 조수웅덩이에 서식하는 이동성 대형 동물 (어류와 십각류)의 군집생태 (The Community Ecology of Mobile Macrofauna (Fish and Decapod) at the Youngjong Tiny Tidepools, Incheon, Korea)

  • 김병기;김병표;한경남
    • 한국어류학회지
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    • 제27권3호
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    • pp.205-216
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    • 2015
  • 인천, 영종도의 소형 조수웅덩이에서 이동성 대형동물의 군집을 조사하였다. 조사는 2010년 2월부터 2011년 1월까지 매월 실시되었다. 총 18종, 1,122개체, 623.6 gWWt이 채집되었다. 우점종은 민물두줄망둑, 미끈망둑, 풀게, 긴발가락참집게였다. 종수와 생체량은 12월부터 3월까지 낮았고, 4월부터 11월까지 높게 나타났다. 정준대응분석 결과 수온이 군집 조성에서 가장 중요한 환경 요인임을 나타내었다. 종다양도지수 범위는 0.14~2.05였고, 10월에 가장 높았다. 소형 조수웅덩이는 일부 작은 크기의 어류와 십각류에게 산란장과 성육장을 제공한다.

CO1 DNA 바코드 염기서열 기반 팽활(蟛螖) 신속 감별용 SCAR marker 개발 (Development of SCAR marker for the rapid assay of Paeng-hwal based on CO1 DNA barcode sequences)

  • 김욱진;노수민;최고야;장우종;문병철
    • 대한본초학회지
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    • 제39권2호
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    • pp.1-9
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    • 2024
  • Objectives : Paeng-hwal is described as an insect herbal medicine used for digestive diseases in the Dong-ui-bo-gam. The origin of this herbal medicine is limited to several small crabs, such as Helice tridens. These crab species cohabitat in the same environment and share similar morphological characteristics, making it very difficult to distinguish and collect the individual species for use in dietary supplements or herbal medicines. This study was conducted to develop a genetic identification tool for discriminating among these closely related small crab species. Methods : CO1 DNA barcode regions of 15 samples from 6 species of small crabs were analyzed to obtain the individual sequences. To identify the correct species, comparative analyses were carried out using the database of the NCBI GenBank and the NIBR. SCAR primers were designed to develop simple and rapid assay methods using inter-species specific sequences. Optimal SCAR assay conditions were established through gradient PCR, and the limit of detection (LOD) was determined. Results : Six species of small crabs (Helicana tridens, Macrophthalmus abbreviatus, Helicana tientsinensis, Helicana wuana, Chiromantes dehaani, and Hemigrapsus penicillatus), which are distributed as Paeng-hwal, were identified through CO1 sequences analysis. We also developed SCAR markers to distinguish between six small crabs at the species level. Furthermore, we established the optimal PCR assay methods and the LOD of each individual species. Conclusions : The rapid and simple SCAR-PCR assay methods were developed to identify the species and control the quality of herbal medicines for Paeng-hwal based on the genetic analyses of CO1 DNA barcodes.