• Fisheries and Aquatic Sciences
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• 제24권12호
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• pp.406-414
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• 2021

The objective of this study was to investigate the yield and characteristics of collagen protein extracted from the muscle of four different species of mantis shrimp: Miyakella nepa, Harpiosquilla harpax, Erugosquilla woodmasoni, and Odontodactylus cultrifer. Mantis shrimp muscle was extracted by using a pepsin-solubilization technique, with 0.5 M acetic acid and 5% pepsin enzyme. The highest collagen yield was from M. nepa muscle (0.478 ± 0.06%), which was significantly greater (p < 0.05) than that from H. harpax, O. cultrifer, and E. woodmasoni (0.313 ± 0.03%, 0.123 ± 0.02%, and 0.015 ± 0.00%, respectively). The freeze-dried collagen appeared as thin fibers, and formed an opaque film. The pepsin-soluble collagen (PSC) from four mantis shrimp species was analyzed by gel electrophoresis. The results showed that all species of mantis shrimp contained type I collagen, consisting of β, α1, and α2 subunits with average molecular weights of 250, 145, and 118 kDa, respectively. The study of the solubility of collagen showed that, for NaCl, collagen had the highest relative solubility in 2% NaCl (80.20 ± 4.95%). In contrast, the solubility decreased at higher NaCl concentrations. However, in terms of pH, collagen had the highest relative solubility at pH 3 (91.32 ± 5.14%), and its solubility decreased at higher pH. FT-IR spectroscopy was used to compare the collagen with a model compound. Five wavenumbers in the spectrum for model collagen were identified: Amide A (3,406-3,421 cm^-1), amide B (2,916-2,940 cm^-1), amide I (1,639-1,640 cm^-1), amide II (1,539-1,570 cm^-1), and amide III (1,234-1,250 cm^-1).

• 수산해양교육연구
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• 제23권4호
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• pp.763-771
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• 2011

Development and distribution of Japanese mantis shrimp, Oratosquilla oratoria (De Haan) larvae were investigated in the northwestern water off Incheon. O. oratoria larvae were monthly collected at 15 stations from early June to early October in 2007. Bongo net with 330 and 505 um mesh was deployed in a double once with an oblique tow way. Larval densities were relatively higher in southerner stations in July and in northerner stations in August and September. No larvae were discovered in June. Zoea I and II were not captured during the entire sampling period. Zoea III occurred in July for the first time and were found until September. Thereafter, the proportion of later stages increased. The number of zoeal stages decreased during the summer months and no larvae were found in October. Of zoeal stages, zoea IV was the most abundant in number. Zoeal densities were highest in July and August, particularly at the stations near the coast. O. oratoria larvae may be retained and grow within our study sites without advection to growing areas. Non-occurrence of zoea I and II indicate that they were retained near spawning grounds or near parental burrows. Pattern of larval occurrence was coincided with previous researches conducted in conspecific distribution ranges.

• Animal Systematics, Evolution and Diversity
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• 제29권3호
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• pp.245-248
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• 2013

The stomatopods are aggressive predatory marine crustaceans, which are mainly found in tropical and subtropical regions. Among these, a parasquillid stomatopod, Faughnia formosae Manning and Chan, 1997, collected from Jeju Island, is reported for the first time in Korea. The family is easily distinguished from other families by the presence of an asymmetrically bilobed cornea, stout propodus on the raptorial claw, and three primary spines of the uropodal protopod. In the paper, detailed descriptions and illustrations of this species are provided alongside a photograph. A key to the species of Korean mantis shrimp is also presented. As a result of this study, four species of stomatopods including this species are now recorded in Korean fauna.

• Animal Systematics, Evolution and Diversity
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• 제34권2호
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• pp.114-118
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• 2018

A gonodactylid stomatopod, Gonodactylaceus falcatus ($Forsk{\aa}l$, 1775), collected from Jeju Island is reported for the first time in the Korean fauna. The genus Gonodactylaceus, which is also new to Korea, differs from other genera by the presence of a subglobular cornea, five longitudinal dorsal carinae on the telson, and the absence of a movable proximal spine on the propodus of the raptorial claw. Within genus Gonodactylaceus, G. falcatus can be easily distinguished from other congeners by the presence of a bilobed knob on the telson, a rounded anterolateral margin of rostral plate, and a lobe between terminal spines of uropodal protopod. In this paper, detailed descriptions and illustrations of G. falcatus are provided. As a result of this study, seven species of stomatopods including this species are now recorded in the Korean fauna. A key to the species of Korean mantis shrimp is also presented.

• 한국수산과학회지
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• 제55권1호
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• pp.37-50
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• 2022

The use of uncertain names for imported crustaceans causes considerable confusion for the establishment of government policies and the public market. Therefore, there have been demands for reestablishment of the domestic names of imported fish to correct the market order and to prevent damage caused by confusion among consumers. A total of 118 species of imported fisheries crustaceans were reviewed (47 crab spp., 36 shrimp spp., 27 lobster and crayfish spp., five mantis shrimp spp., and three horseshoe crab spp.). Although not belonging to the Subphylum Crustacea, three species of the Subphylum Chelicerata and five species of the Order Stomatopoda were included for review. Of these, 49 species that require Korean name assignment and reexamination of domestic names were selected and Korean names were assigned.

• Animal Systematics, Evolution and Diversity
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• 제36권4호
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• pp.387-390
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• 2020

A parasquillid stomatopod, Faughnia haani(Holthuis, 1959), collected from Jeju Island, is reported for the first time in Korea. This species is characterized by the presence of obtuse anterolateral angles of carapace, median and three pairs of longitudinal carinae on telson, and crenulate inner margin of uropodal protopod. In this paper, a detailed description and illustrations are provided. As a result of this study, the geographical distribution of the present species is extended and 15 species of stomatopods including this species are now recorded in Korean fauna. The specimen examined herein was deposited in the National Institute of Biological Resources(NIBR).

• Animal Systematics, Evolution and Diversity
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• 제38권4호
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• pp.267-270
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• 2022

A squillid stomatopod, Oratosquilla fabricii, collected from Jindo Island, is reported for the first time in Korea. The family Squillidae differs from other families by the presence of more than four intermediate denticles of telson. This species is distinguished from O. oratoria, another Oratosquilla species recorded in Korea, by the presence of an armed submedian carinae on the fourth abdominal somite and dark patches on the second abdominal somite. In the present study, detailed descriptions and illustrations of O. fabricii are provided. A key to the species of Korean Oratosquilla species is also presented. With this new record, the number of stomatopod species in the Korean fauna has increased to 16.

• 한국식생활문화학회지
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• 제2권1호
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• pp.45-54
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• 1987

This paper is a part of the regional characteristics of Korean chotkal. The kinds and materials of Korean chotkals are studied by interviewing local people living in 142 different regions which are bigger than 'myon' in size. Regions are classified according to the structural style of commoner's house. Regional characteristics of chotkal are analyzed and interpreted with natural environmental factor. The rest of my further interested subject will be followed in later issues ; the ways of preservation, period of fermentation according to the regional characteristics and uses of Korean chotkal. The results of this study can be summerized as follows, 1. There are 145 different kinds. 2. Raw materials of 145 kinds of chotkal are devided roughly into five groups ; (1) fishes in 87 kinds (2) Pelecypoda and Gastropoda in 14 kinds (3) Cephalopoda in 10 Kinds (4) Crustacea in 32 kinds and (5) Holothuroidea and Echinoidea in 2 kinds. They can also be classified according to the parts of individual material ; (1) body or flesh in 118 kinds (2) internal organs in 15 kinds and (3) eggs in 12 kinds. Regions are devided into four provinces ; 'Kwanso', 'Chungbu', 'Nambu', and 'Kwanbuk' in which the number of different kinds of chotkal are 32, 41, 99 and 34, respectively. Raw materials vary because of the distribution of marine life in different regions. Fishes and Cephalopoda are used in all four regions, Pelecypoda and Gastropoda in 'Kwanso', 'Chungbu' and western part of 'Nambu' regions. Different species of Crustacea used in each different regions ; sea crab and sea shrimp in the western coastal area, fresh water crab in the field area, fresh water shrimp in 'Chollado', mantis crab at 'Shihung-gun' in 'Kyonggi-do', Holothuroidea and Echinoidea are used in 'Nambu' regions. Chotkal are not used at all in six local districts which are located in inland areas where the transportation is inconvenient.

• 수산해양기술연구
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• 제33권4호
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• pp.298-310
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• 1997

마산만의 4개 정점에서 1994년 3월부터 1996년 12월까지 2~3월 간격으로 14회에 걸쳐 21개의통발과 5폭의 저층자망어구를 이용하여 저서어개류의 군집특성을 조사하였다. 통발에 채집된 종은 0~10종으로 불가사리, 게류, 붕장어, 볼락, 노래미, 망둑 및 베도라치 등이었고, 단위 통발당 개체수는 0~46마리였으며 우점종은 S1정점의 납작게와 다른 정점의 불가사리였다. `95년에 출현 종과 개체수가 비교적 많았으나, `94년 3월과 7월 및 `96년 8월에 S1정저메서 생물이 채집되지 않았다. 자망구어에 채집된 종는 0~7종으로 갯가재, 해파래, 도다리, 불가사리, 민꽃게, 및 해조류 등 이었고, 단위 폭당 개체수는 0~30마리였으며 우점종은 해파리와 갯가재엿다, `94년 7월에는 S1정점에서 그리고 `96년 8월 및 12월에는 S4정저메서서 생무링 체포되지 않았으나, `95년 8월과 `96년 8월에는 S1정점에서 고등어, 멸치, 전어, 숭어 등이 저층자망에 포획되기도 하였다. 가장 오염이 심한 S1정점에서 `94년 11월에 통발당 50여 마리의 납작게가 들었으며 이후에도 개체수는 줄었으나 지속적으로 포획되었고, `96년 8월에는 고등어, 숭어, 전어 등의 군집이 빈번하게 형성되었다, 그리고 S1정점에서 도다리, 노래미, 갯가재, 꼼치 등의 치어사 `95년과 `96년의 4~8월에 많이 들었으나 특이하게도 불가사리는 1마리도 채집되지 않았다. 종다양성지수(H`)는 60여회의 조사중 80% 이상이 1.0 이하로 나타났다. 정점별 비교에서 톨발에 의한 군집 안정도는 S1정점에서 가장 낮고 다른 정점에서는 유사한 수준으로 높았지만, 자망의 경우는 S1과 S4정점에서 유사한 수준으로 낮고, S2과 S3정점에서 유사한 수준으로 높게 나타났으며 계절별 큰 차이가 없었다. 그리고 경년별 비교에서 통발의 경우에는 거의 차이가 없으나, 지망의 경우 `95년이 다른 해보다 군의 댜양도가 현저하게 큰 것으로 나타났다. 조사결고를 종합하여 보면 마산만에서의 어개류 군집은 납작게, 해파리, 불가사리, 갯가재 등이 탁월하게 우접하는, 안정도가아주낙은 군집을 하고있는 것으로 나타났다. 그리고 `94년 3월에서 `96년 12월까지 뚜렷한 어개류 서식환경의 개선 징후느 나타나지 않았으나, 마산만에 서식하는 어개류는 이곳의 오염된 서식환경에잘 적응하여 산란.서식하며, 또 회유성 어개류는 주로 외적 요인에 의한 계절 및 경년변동을 하는 것으로 유추된다.