• Animal Systematics, Evolution and Diversity
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• 제5권2호
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• pp.89-105
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• 1989

농게(Ura arcuata) (달랑게과, 달랑게아과) 의 유생을 부화에서부터 첫 번째 게기까지 수온 $25^{\circ}C$ , 염분농도 33.3$\textperthousand$의 해수에서 사육하고, 각 유생기이 형태적인 특징을 기술 및 도식하였다. 이 종은 5기의 zoea와 1기의 megalopa 유생을 거쳐 첫 번째 게기로 변태하였다. 제 1 zoea 유생기는 제 1 소악의 내지에 4개의 말단강모와 제 2 악각의 기절과 내지에 각각 3개의 우상강모와 0, 0, 5 강모식을 가지고 촉각은 B형이었다. 이러한 특징들은 이미 보고된 같은 과의 유생들의 특징들과 잘 일치하고 있다.

• Animal cells and systems
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• 제12권3호
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• pp.171-180
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• 2008

The complete larval development of Pagurus japonicus(Stimpson) is described, based on laboratory rearing. The species has four zoeal stages and a megalopa. The larvae are described and illustrated, and detailed comparisons with other pagurid larvae in the Korean coast are made.

• 한국동물학회지
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• 제36권1호
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• pp.67-76
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• 1993

The lanral characters of Petrolisthes japonicus (De Haan, 1849), Porcellanidae, were described and illustrated. The lanral development of P. juponicus includes the two zoeal and one megalopal stases. The first and second zoeal stases lasted about 4 and 10 days, respectively. It took about 14 days to attain megalopa from hatching-The larval characteristics of P. japonicus were compared with those of other knouts species of Petrolisthes. Consequently, the lanrae of P. japonicus are more closely related to P elongatus and P ornutus than other Petrolisthes species, but the present species can be distinguished from these Petrolisthes species by morphological characteristics.

• Animal cells and systems
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• 제14권2호
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• pp.115-123
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• 2010

The complete larval development of Rhinolithodes wosnessenskii Brandt, 1848 is described, based on laboratory rearing. The species has four zoeal stages and a megalopa. The zoeas of R. wosnessenskii are readily distinguished from all other described zoeas of the subfamily Lithodinae by having a middorsal spine of the posterior margin of the carapace.

• Animal cells and systems
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• 제13권1호
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• pp.59-69
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• 2009

This paper documents the defining morphological characteristics of the larval stages of Chionoecetes tanneri Rathbun, 1893, the grooved Tanner crab, from specimens reared in the laboratory. Chionoecetes tanneri larval stages include two zoeae and one megalopa. The first zoea is characterized by: six setae on the posterior margin of the carapace; postero-lateral spines on abdominal somites 3 and 4, extending beyond the posterior margin of adjacent somites and bearing 9-10 spinnules; 12 plumose setae and one stout distal plumose seta present on the margin of the scaphognathite of the maxilla; and one fused lateral spine and one articulated dorso-medial spine on each fork of the telson. The second zoea is characterized by: 9 setae on the postero-lateral margin of the carapace; a serrated mandible molar; a mandibular palp bud; 25-26 plumose setae on the margin of the scaphognathite of the maxilla; pereiopods with well-developed gills and buds; and four pairs of stout setae on the posterior margin of the telson. For the megalopal stage, the distinguishing characteristics include: a rostral spine equal in length to the supraorbital spine; six setae on the exopod of the uropod; and a single spine on the ischium of the second pereiopod. This study allows C. tanneri larvae to be distinguished from the larvae of known sympatric congeners. This information provides a basic taxonomic tool for researchers in fisheries management and zooplankton ecology who are addressing issues related to trophic interactions, metapopulation dynamics and ecosystem impacts in the evolving marine resource management strategies in the North Pacific, and those related to Chionoecetes species in particular.

• 수산해양교육연구
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• 제26권2호
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• pp.437-443
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• 2014

실험실에서 사육된 범게(Orithyia sinica) 의 메갈로파 유생을 형태적으로 기술하고, 근연과에 속한 메갈로파 유생들과 형태적인 특징들을 비교 하였다. 범게(O. sinica) 의 메갈로파기는 근연과에 속한 메갈로파들과 다음과 같은 면에서 비교 구분되었다: 갑각은 그 폭이 길이보다 약간 길며 옆으로 2개의 가시가 있고, 다섯 번째 보각의 발가락마디 끝에 긴 강모가 없으며, 꼬리는 매끈하고 그 끝이 약간 오목하였다.

• 한국양식학회지
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• 제14권1호
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• pp.51-56
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• 2001

At 5$^{\circ}C$ incubation of the brooded eggs of the snow crab, Chionoecetes opilio lasted for 297 days; freshly hatched prezoea molted to become the first zoea in one hour. Length (from the tip of the rostral spines to the tip of the dorsal spines) of the first and second zoeae measured 4.8 and 6.4mm, respectively. Experimental rearing of the larvae at 5, 10, 15 and 2$0^{\circ}C$ indicated that the upper limit of thermal tolerance is 15$^{\circ}C$, as all the reared larvae succumbed at 2$0^{\circ}C$. Intermolt period from the first the first zoea to the second was 57, 32 and 23 days at 5, 10 and 15$^{\circ}C$, respectively and that of the second zoea was 52, 29 and 90 days, respectively. Largest number of larvae survived at 1$0^{\circ}C$.

• 한국동물학회지
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• 제30권3호
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• pp.277-291
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• 1987

틸보꼬마풀게 (Hemigrapsus sinensis Rathbun) (바위 게 과, 참게 아과)의 유생을 부추에서부터 첫번째 게퇘까지 수온 20.2$^{\circ}C$에서 24.1$^{\circ}C$, 염분농도 32,9도에서 33.2%o에서 사육하고, 각 유생기의 형태적인 특징을 기술 및 도시하여, 같은 속내에 보고된 다른 7종의 유생들과 kk교하였다. 이 종은 5기의 Zoea와 1기의 Megalopa 유생을 거쳐 첫번째 게탰로 변태하였다. 제 1 Zoea기의 제 1촉각과 미절이 Aikawa의 기준에 의한 공형이며 갑측극은 있고 제 2소악내지의 강량식이 2.2인 점에서는 같은 속의 다른 7종과 일치하나, 제 1악각의 기절 및 내파와 제 2악각의 내지의 강모식에 약간의 차리가있다.

• Animal cells and systems
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• 제10권1호
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• pp.7-14
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• 2006

Novactaea pulchella was reared in the laboratory, from hatching to the megalopal stage at $25^{\circ}C$. The larval stage of it consists of two zoeal and one megalopal stages. The first zoea of the present study differs from that described by Terada (1990) in the setal presence of the carapace, the maxilla and the maxilliped, and the lateral process on the abdominal somite. It is reported for the first time that brachyuran zoeas belonging to a species share two types of lateral processes on the abdominal somites. They are either on the abdominal somites 2 and 3 or on abdominal somites 2 to 5. A provisional key is provided to aid the identification of the actaeine zoeas in Korea and the adjacent waters.

• Animal cells and systems
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• 제14권2호
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• pp.129-136
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• 2010

The introduced spider crab Pyromaia tuberculata was collected from Korea in 2005 and it was ovigerous. After hatching, larvae were reared in the laboratory at $20^{\circ}C$. The larval stage of the species consists of two zoeal and one megalopal stages. The larvae of the Korean species differ somewhat from those from New Zealand described by Webber and Wear (1981; N Z J Mar Freshwat Res. 15:331-383) and from Brazil described by Fransozo and Negreiros-Fransozo (1997; Crustaceana. 70:304-323.) in the setal presence of the antennule, the maxillule, the maxilla and the maxillipeds, and the abdomen. It is found that Fransozo and Negreiros-Fransozo have overlooked some setae on the basis of the zoeal maxillipeds and that re-examination of their larvae is needed. Also, it is found that the Inachoididae is heterogeneous based on the zoeal morphology because two distinct groups exist in the family.