• Animal Systematics, Evolution and Diversity
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• 제28권2호
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• pp.105-116
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• 2012

Based on samples collected from the Korean Exclusive Economic Zone (EEZ) during an investigation of fishery resources by the National Fisheries Research and Development Institute (NFRDI) from 2002 to 2010, alongside some supplemental material, six species of the genus $Plesionika$ are identified: $P.$ $izumiae$ Omori, 1971, $P.$ $ortmanni$ Doflein, 1902, $P.$ $grandis$ Doflein, 1902, $P.$ $lophotes$ Chace, 1985, $P.$ $narval$ (Fabricius, 1787), and $P.$ $orientalis$ Chace, 1985. Of these, the last four species are new to Korean marine fauna. The distributional range of $P.$ $narval$ extends to the East China Sea off Jeju Island. Excluding $P.$ $izumiae$ and $P.$ $ortmanni$, the other four species are relatively rare in the seas around Korea. They are described and illustrated with color photographs. A key to the Korean species of $Plesionika$ is also presented.

• Animal Systematics, Evolution and Diversity
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• 제36권2호
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• pp.159-163
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• 2020

Parasesarma bidens(De Haan, 1835) has been designated as a marine protected species by the Act on conservation and management of marine ecosystems. This crab has been recorded only from Jeju-do and Geomun-do, Republic of Korea. In this study, we describe for the first time the mitochondrial cytochrome c oxidase subunit I(COI) sequences of P. bidens. The intra-specific genetic distance among the Korean populations and between the Korean and Chinese populations ranged from 0% to 0.9% and 1.9% to 2.7%, respectively. The inter-specific genetic distances among the four Parasesarma species ranged from 10.9% to 12.8%. The finding of this study will be helpful to better describe P. bidens using COI DNA barcodes and can be used as basic data for their restoration and conservation research.

• Animal Systematics, Evolution and Diversity
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• 제21권1호
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• pp.73-79
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• 2005

새우류의 지속적인 분류학적 연구 결과 딱총새우류 1종이 한국에서는 지금까지 보고되지 않은 종으로 밝혀졌다. 알바트로스딱총새우(Alpheus albatrossae)를 재기재하고 한국에서 처음 보고한다. 이 종은 딱총새우속의 macrocheles 그룹에 속하며, 알려진 한국산 딱총새우류와는 안와뿔을 가지고 있고, 큰 쪽 제1 가슴다리의 손바닥에는 세로로 달리는 3개의 큰 마루와 홈이 있는데 이 마루는 (1) 가동지와의 관절 위의 억센 이, (2) 접착면, (3) 가동지와의 관절 아래의 억센 이로 끝난다는 점에서 구별된다 이제 한국산 딱총새우류는 7속 21종으로 구성된다.

• Animal Systematics, Evolution and Diversity
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• 제21권2호
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• pp.193-199
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• 2005

Liomerinae아과에 속하는 Liomera bella 제1조에아 유생을 처음으로 기재 및 도시하였다. 이 유생의 형태적 특징들을 부채게과의 다른 종들의 유생들과 비교하였다. 일반적인 형태면에서 본 유생은 부채게과 유생들과 잘 일치하였다. 또한 제2촉각 외지에 2개의 강모를 가지고, 제2악지 내지 말단 강모수가 6개이며, 미절에 1개의 센 측가시와 1개의 작은 측가시를 가짐으로서 Xantho incisus와 Pseudomedaeus agassizii 유생들과 더 큰 유사성을 보여주었다

• 한국양식학회지
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• 제20권3호
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• pp.194-198
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• 2007

Reproductive traits of Palaemon gravieri such as embryo size, number of embryo (fecundity), incubation period, larval development mode, larval development period, larval survival and larval growth were described and compared to analyze the correlation among those traits. Embryo volume is a primary factor determining other ensuing reproductive features. Egg volume was $0.042mm^3$ in the first developmental stage. Embryo volume in P. gravieri was comparatively small which is indicative of great number of embryo (y = 3.0161x + 0.0185 $R^2$ = 0.74 positive isometric relationship) and relatively long incubation period. Larvae survived from zoea 1 to post-larvae and it took 45 days at $22^{\circ}C$. Survival rate of the larvae was rather great in the early stage and thereafter steadily decreased. Daily growth rate of larvae in P. gravieri at $22^{\circ}C$ was 0.0195 mm on average. They grew steadily as time went by. Incubation period was between 10-14 days at $22^{\circ}C$. Larval development mode was almost complete planktotrophic. PNR (point of no return) appeared to be the third day on average. Survival rate of larvae without feeding declined rapidly between 3 and 4 days. Larval development period and stage frequency were 23-30 days and 11 stages which imply prolonged larval period and high mortality. The pattern of brood production followed fast successive parturial pattern. Most ovigerous female had mature ovary when they performed parturial molt soon after hatching (larval release).

• 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.

• Animal Systematics, Evolution and Diversity
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• 제12권2호
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• pp.91-99
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• 1996

실험실에서 사육된 밤게의 유생은 2조에아 유생기와 1메가로파 유생기를 가졌고, 조 에아 유생기를 완전발생 시키는데 $25^{\circ}C$ 수온에서 최저 11일이 걸렸다. 각 유생기의 형태적 특징을 상세히 기재 및 도시하였다. 밤게의 제1조에아 유생은 갑각에 아주 짧은 액극을 가 지고 배극이 없다는 것을 제외하고는 그 외의 모든 특징에서 이미 알려진 밤게 속의 다른 유생과 잘 일치하고 있었다. 밤게가 속하고 있는 subfamily Philyrinae의 조에아 유생은 그 특징에 의거 Arcania septemspinosa, A. undecimspinosa elongata, 긴손밤게(Myra fugax)을 포함한 군과 Philyra corallicola, 납작손밤게(P. syndactyla), 밤게(P. pisum)을 포함한 군으 로 나눌 수 있다.

• Journal of Ecology and Environment
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• 제31권1호
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• pp.9-15
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• 2008

Growth and reproduction of Palaemon serrifer were described and analyzed in a population inhabiting tide pools in warm temperate waters in Korea. The water temperature varied greatly in the tide pools, ranging from 8$^{\circ}C$ to 27.8$^{\circ}C$ Population structure and growth were investigated using size frequency distribution data collected from January to December 2003. Sex ratios fluctuated, but were almost equal during the breeding period. Growth was continuous and size increased gradually throughout the year. Adult females were larger and grew faster than males. von Bertalanffy growth parameters for a one-year sample of females and males were estimated as $L_{i\ddot{A}}$ = 11.32, K = 0.311, $t_0$ = -0.4115 and $L_{i\ddot{A}}$ = 8.36, K = 0.228, $t_0$ = -0.9693 respectively. Breeding was seasonal, starting in May, peaking in August, and finishing by the end of August. The species showed continuous production of successive broods. Laboratory observation showed that females with embryos near hatching had ovaries filled with vitellogenic oocytes ready for spawning. The reproductive output (effort) of each female (mean number of eggs: $552{\sim}1355$) was not high. The mean embryo volume, $0.078mm^3$, is relatively small, indicative of low energy allocation to each embryo. Recruitment of juveniles was closely linked to the breeding period, beginning in September.

• 한국수산과학회지
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• 제24권6호
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• pp.472-482
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• 1991

아산만 동물 플랑크톤의 계절별 분포를 조사하였다. 년중 Labidocera euchaeta, Safitta crassa, Calanus sinicus, Acartia omorii 등이 계절에 따라 다른 점유율을 보이며 주요 우점종으로 나타났고, 기타 계절에 따라 이매패 유생(가을), 십각류 유생(봄, 여름) Paracalanus Parvus, Evadne tergestina(여름) 등이 주요 우점종에 포함되었다. 주요 우점종인 A. omorii는 계절에 따라 주야 수직분포가 다른 양상을 보였는데, 겨울철에는 정상적인 주야 수직이동, 봄철에는 역전된 주야 수직이동을 하는 것으로 여겨졌다. 대부분 표층에서는 야간과 비교하여 주간에 통상 같거나 적은 양의 개체수 분포를 보였다.

• Fisheries and Aquatic Sciences
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• 제13권4호
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• pp.308-314
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• 2010

Larvae of Palaemon serrifer were reared in the laboratory under three different temperature regimes ($15^{\circ}C$, $20^{\circ}C$, $25^{\circ}C$) to study the effects of rearing temperature on larval survival and growth, as well as other traits such as embryo volume, number of embryos (fecundity), incubation period, development. Mode and development period. Growth pattern was analyzed by measuring the molt increment and intermolt period. The intermolt period consistently increased with size and instar number and was shortest at $25^{\circ}C$. However, molt increments generally decreased with instar number. Number of embryos varied from 552 to 1355. The relationship between the number of embryos and carapace length was expressed by the equation (fecundity) y=2.7744x+0.208 ($R^2$=0.7961). Egg volume was a primary factor affecting other life-history traits. Egg volume was $0.078\;m^3$, which is relatively small thus embryos exhibited a relatively short incubation period and a comparatively short development period, and the nutritional mode was planktotrophic. Brood production was followed by a fast parturitional pattern. Most ovigerous females had mature ovaries when the parturial molt occurred soon after eclosion.