• Title/Summary/Keyword: 딱총새우

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New Reports of Snapping Shrimps, Alpheus paralcyone and A. spongiarum (Decapoda: Caridea: Alpheidae) from Korea (한국미기록 원통발딱총새우와 해면원통발딱총새우(십각목 : 생이절 : 딱총새우과) 의 보고)

  • Hyeyoung Koo;Kim, Won
    • Animal Systematics, Evolution and Diversity
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    • v.20 no.1
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    • pp.21-29
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    • 2004
  • As a result of continuous taxonomic study on shrimps collected from Korean waters, two alpheid shrimps, Alpheus paralcyone and A. spongiarum, are newly reported from Korean waters. These species belong to the crinitus group of the genus Alpheus. Korean Alpheidae fauna now consists of 18 species of six genera.

Linear prediction analysis-based method for detecting snapping shrimp noise (선형 예측 분석 기반의 딱총 새우 잡음 검출 기법)

  • Jinuk Park;Jungpyo Hong
    • The Journal of the Acoustical Society of Korea
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    • v.42 no.3
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    • pp.262-269
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    • 2023
  • In this paper, we propose a Linear Prediction (LP) analysis-based feature for detecting Snapping Shrimp (SS) Noise (SSN) in underwater acoustic data. SS is a species that creates high amplitude signals in shallow, warm waters, and its frequent and loud sound is a major source of noise. The proposed feature takes advantage of the characteristic of SSN, which is sudden and rapidly disappearing, by using LP analysis to detect the exact noise interval and reduce the effects of SSN. The error between the predicted and measured value is large and results in effective SSN detection. To further improve performance, a constant false alarm rate detector is incorporated into the proposed feature. Our evaluation shows that the proposed methods outperform the state-of-the-art MultiLayer-Wavelet Packet Decomposition (ML-WPD) in terms of receiver operating characteristic curve and Area Under the Curve (AUC), with the LP analysis-based feature achieving a higher AUC by 0.12 on average and lower computational complexity.

First Report of the Alpheid Shrimp Salmoneus gracilipes (Decapoda: Caridea: Alpheidae) from Korea (한국미기록 가는손가락딱총새우 (Salmoneus gracilipes) (십각목: 생이절: 딱총새우과)의 보고)

  • Hyeyoung Koo;Won Kim
    • Animal Systematics, Evolution and Diversity
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    • v.19 no.1
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    • pp.43-48
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    • 2003
  • As a result of recent taxonomic study on shrimps collected from Korean waters, one species of the alpheid shrimp turned out to belong to the genus Salmoneus unreported from Korea. Salmoneus gracilipes is redescribed and reported for the first time from Korea.

New Records of Alpheid Shrimps (Decapoda: Caridea: Alpheidae) from Korea (한국 미기록 딱총새우과(십각목: 생이하목) 3종)

  • Yang, Hoi-Jeong;Arthur Anker
    • Animal Systematics, Evolution and Diversity
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    • v.19 no.1
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    • pp.1-9
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    • 2003
  • Three alpheid shrimps, Alpheus lobidens De Haan, 1850, A. malabaricus (Fabricius, 1775), and A. sudora Banner and Banner, 1966 are reported from southern part of Korea. They represent new records for the Korean marine fauna. Korean Alpheidae consist now of ten species belonging to four genera.

Occurrence of Alpheid Shrimp, Alpheus paracrinitus (Decapoda: Caridea: Alpheidae) in Korea (한국미기록 긴원통발딱총새우(Alpheus paracrinitus) (십각목: 생이절: 딱총새우과)의 보고)

  • Koo, Hye-Young;Kim, Won
    • Animal Systematics, Evolution and Diversity
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    • v.21 no.2
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    • pp.251-257
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    • 2005
  • Alpheus paracrinitus belonging to the diadema group of the genus Alpheus (Decapoda: Caridea: Alpheidae) is reported from Korean waters. This species is distinguished from other Korean congeneric species of the genus Alpheus by the following characteristics: major chela oval in section, lacking marked transverse or longitudinal grooves; movable finger of minor chela balaeniceps; dactylus of third pereopod simple. Korean Alpheidae fauna now consists of 23 species of seven genera.

Occurrence of Alpheid Shrimp, Alpheus albatrossae (Decapoda: Caridea: Alpheidae) in Korea (한국미기록 알바트로스딱총새우 (Alpheus albatrossae) (십각목: 생이절: 딱총새우과)의 보고)

  • Koo Hyeyoung;Kim Won
    • Animal Systematics, Evolution and Diversity
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    • v.21 no.1
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    • pp.73-79
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    • 2005
  • Continuous taxonomic study on shrimps collected from Korean waters revealed that an alpheid shrimp, Alpheus albatrossae occurs in Korean waters. This species belongs to the macrocheles group of the genus Alpheus. This species is distinguished from other known species of the genus Alpheus in Korea by having orbital teeth and palm of large chela with three heavy longitudinal ridges and grooves terminating distally in (1) a heavy tooth above dactylar articulation, (2) the adhesive plaque, and (3) a heavy tooth below dactylar articulation. Korean Alpheidae fauna now consists of 21 species of seven genera.

First Report of Snapping Shrimp Synalpheus neomeris (Decapoda: Caridea: Alpheidae) from Korea (한국미기록 큰발톱세이마뿔딱총새우(십각목: 생이절: 딱총새우과)의 보고)

  • Hyeyoung Koo;Won Kim
    • Animal Systematics, Evolution and Diversity
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    • v.19 no.2
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    • pp.245-250
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    • 2003
  • As a result of taxonomic study on shrimps collected from Korean waters, one species of the snapping shrimp turned out to be new to Korean fauna. Synalpheus neomeris is redescribed and reported for the first time from Korea.

First Record of Snapping Shrimp, Automate dolichognatha(Decapoda: Caridea: Alpheidae) in Korea (한국미기록 나안딱총새우 (십각목: 생이절: 딱총새우과)의 보고)

  • Hyeyoung Koo;Kim, Won
    • Animal Systematics, Evolution and Diversity
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    • v.20 no.1
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    • pp.39-44
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    • 2004
  • The alpheid shrimps collected from Jeju-do turned out to belong to the genus Automate unreported from Korean waters. Automate dolichognatha is recorded for the first time in Korean waters. Korean Alpheidae fauna now consists of 19 species of seven genera.

Characteristics of Snapping Shrimp Sound Observed in the Korean Coast of the Yellow Sea (황해 연안에서 관측된 딱총새우 음의 특성)

  • Kim, Bong-Chae;Kim, Byoung-Nam;Shin, Chang-Woong;Kim, Cheol-Soo;Choi, Bok-Kyoung
    • The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY
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    • v.12 no.3
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    • pp.142-146
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    • 2007
  • Ambient noise was measured for 3 hours on May, 2001 at a site of 20 m water depth in the Korean coast of the Yellow Sea. During the measurement, the strong underwater sound assuming by marine life was continually observed. The spectrum level of this sound was very high compared to that of underwater ambient noise over the frequency range from 1 to 20 kHz. Therefore, this underwater sound can continually affect the ambient noise level. In this study, the source of the underwater sound was investigated. The snapping shrimp was estimated as reliable source. It was confirmed through comparison with experimental results described in previously literatures. It was also confirmed through analysis of snapping shrimp sound measured under laboratory conditions.

Zoeal Stages of Aipheus euphrosyne richardsoni Yaldwyne, 1971 (Decapoda: Macrura: Alpheidae) Reared in the Laboratory (Aipheus euphrosyne (새우아목, 딱총새우과)의 Zoea 유생)

  • 양회정;김창현
    • The Korean Journal of Zoology
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    • v.39 no.1
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    • pp.106-114
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    • 1996
  • Zoeae of Alpheus euplirosyne rlchardsoni Valdwyne, 1971 reared in the laboratory are described and Illustrated The culture was carded out under the laboratory condition with the photoperiod l4hr light and lOhr darkness and salinity of 33.3$\textperthousand$ at 25$^{\circ}$C. This species exhibits extended development on the egg size just before hatching and on the length of the first zoea. The morphological differences between the first zoea of this species and those of five other species in the same genus are discussed.

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