• 제목/요약/키워드: Pandalus gracilis

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한국산 남방도화새우, Pandalus gracilis유생의 두 온도 구간에서의 생존율과 성장 (Larval Survival Rate and Growth of Pandalus gracilis Using Two Temperature Conditions Reared in the Laboratory)

  • 최정화;마채우
    • 한국양식학회지
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    • 제17권1호
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    • pp.58-61
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    • 2004
  • 이 연구에서는 경남 통영에서 채집된 남방도화새우, Pandalus gracilis 유생의 적정 사육 온도와 수온이 성장에 미치는 영향을 파악하기 위해 10와 2$0^{\circ}C$(32.5∼34.5$\textperthousand$; 12L: 12D)두 온도 구간을 설정하여 이루어졌다. 유생의 생존율은 2$0^{\circ}C$가 1$0^{\circ}C$에 비해 높게 나타났으며, 유생의 탈피주기는 1$0^{\circ}C$에서 보다 긴것으로 나타났다.

Growth Pattern of Pandalus gracilis (Decapoda: Pandalidae) in the Southern Coastal Waters of Korea

  • Oh, Chul-Woong
    • Fisheries and Aquatic Sciences
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    • 제14권2호
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    • pp.111-117
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    • 2011
  • The population dynamics of Pandalus gracilis was investigated in the southeastern coastal area of Korea between May 1998 and April 2000. Of the 4,127 specimens, 57% were identified as females, 39% as males, and 4% as transitional hermaphrodites. The number of females was greater than that of males and transexuals. A significant correlation was observed between the number of transitional hermaphrodites and ambient seawater temperature. Growth parameters were estimated using the modified von Bertalanffy growth function model incorporating seasonal variation in growth using the program ELEFAN. Females grew faster and reached a larger size-at-age than males (K=0.65/y and $L_{\infty}$=17.86 mm carapace length [CL] for females; K=0.51/y and $L_{\infty}$=14.70 mm CL for males). Mean size and age (95% confidence limits) at sex transition, calculated from growth parameters, were 7.07 mm carapace length and 1.05 years, respectively. The reproductive strategies of pandalid shrimps are discussed in terms of the type of sex transition.

고리 주변해역 통발에서 채집된 십각류 종조성의 계절변동과 연간변동 (Seasonal and Interannual Variation in Species Composition and Abundance of Decapod Assemblages Collected using Pots in the Coastal Waters off Gori, Korea)

  • 허성회;박주면;정달상;백근욱
    • 한국수산과학회지
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    • 제43권5호
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    • pp.503-509
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    • 2010
  • The seasonal and interannual variation in the species composition and abundance of the decapod assemblage (shrimps, crabs, and hermit crabs) collected using pots in the coastal waters off Gori were studied between 2005 and 2008. During the study period, 49 decapod species belonging to 19 families were collected. The dominant species were Crangon hakodatei, Pandalus gracilis, Carcinoplax longimana, Charybdis bimaculata, Carcinoplax vestita, Diogenes edwardsii, and Dardanus arrosor. These seven species accounted for 95.46% of the total number of individuals collected. The number of species, number of individuals, biomass, and species diversity indices fluctuated with the seasons. The peak number and biomass of individuals occurred in July 2006. The number and biomass of individuals were higher in summer and lower in winter, and the diversity indices were lower in summer than in the other seasons. The abundance of dominant species showed some seasonal and interannual change; in particular, those of C. hakodatei and P. gracilis corresponded with the bottom water temperature.

SPERM STRUCTURE OF THE PANDALID SHRIMP, PANDALUS GRACILIS (Stimpson, 1869)

  • Kim, Dae-Hyun;Gong, Yong-Gun;Lee, Chang-Hoon;Cha, Byung-Yul;Han, Chang-Hee
    • 한국어업기술학회:학술대회논문집
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    • 한국어업기술학회 2003년도 춘계 수산관련학회 공동학술대회발표요지집
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    • pp.304-305
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    • 2003
  • Sperm structure of natantian decapod may vary according to superfamilies. Recently, the ultrastructures of sperm have been extensively used for recognizing phylogenic linkages in decapod taxa (Medina, 1994; Tudge, 1997; Tudge et al., 1991; Medina et al., 1998). Therefore, it appears that knowledge of the sperm morphology and components is very useful for estimating phylogeny in decapod. (omitted)

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국내 온라인 유통 새우 제품의 종판별 및 표시사항 모니터링 연구 (Species Identification and Labeling Compliance Monitoring of Commercial Shrimp Products Sold in Online Markets of South Korea)

  • 김건희;이지영;강태선
    • 한국식품위생안전성학회지
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    • 제38권6호
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    • pp.496-507
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    • 2023
  • 본 연구는 대한민국 온라인 시장에서 판매되는 48개의 새우 제품의 종판별 및 제품 표시 사항 일치 여부를 조사하였다. 사용 원재료의 종 판별을 위해 cytochrome c oxidase subunit I 유전자의 염기서열을 분석하여 NCBI GenBank 및 BOLD system 데이터베이스에 등록된 생물종의 염기서열과 비교하였다. 또한 계통분석을 수행하여 동정된 새우종을 추가로 검증했다. 종판별 결과 총 16종[흰다리새우(Penaeus vannamei, Whiteleg shrimp or Pacific white shrimp), 북쪽분홍새우(Pandalus borealis, Alaskan pink shrimp), 그라비새우(Palaemon gravieri, Chinese ditch prawn), 돗대기새우(Leptochela gracilis, Lesser glass shrimp), 얼룩새우(Penaeus monodon, Giant tiger prawn), 아르헨티나붉은새우(Pleoticus muelleri, Argentine red shrimp), 산모양깔깔새우(Metapenaeopsis dalei, Kishi velvet shrimp), 태평양난바다곤쟁이(Euphausia pacifica, Isada krill), 가시배새우(Lebbeus groenlandicus, Spiny lebbeid), 꽃새우(Trachypenaeus curvirostris, Southern rough shrimp), 진흙새우(Argis lar, Kuro shrimp), 가시발새우(Metanephrops thomsoni, Red-banded lobster), 깔깔새우(Metapenaeopsis barbata, Whiskered velvet shrimp), 긴발딱총새우(Alpheus japonicus, Japanese snapping shrimp), 대하(Penaeus chinensis, Fleshy prawn), 긴뿔민새우(Mierspenaeopsis hardwickii, Spear shrimp)]이 확인되었으며, 흰다리새우(n=22, 45.8%)가 가장 큰 비중을 차지하였다. 일반명 '새우'를 포함하는 35개 제품(72.9%)에서 표시사항과 불일치를 나타내었으며, 일반명(n=30)을 제외할 경우 불일치율은 10.4%로 낮아졌다. 가공 정도별 불일치율은 다중 가공 제품(n=25, 89.3%)이 단순 가공 제품(n=10, 50%)보다 높은 비율을 보였다. 원산지별 분석 결과 특정 국가와 불일치율과의 상관성은 확인할 수 없었다. 본 연구 결과는 향후 새우 제품의 모니터링 수행 및 새우의 국명 표시 개선을 위한 기초자료로 쓰일 수 있을 것이다.