• Title/Summary/Keyword: Octopus

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Classification of Fishing Gear (어구의 분류)

  • 김대안
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.32 no.1
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    • pp.33-41
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    • 1996
  • In order to obtain the most favourable classification system for fishing gears, the problems in the existing systems were investigated and a new system in which the fishing method was adopted as the criterion of classification and the kinds of fishing gears were obtained by exchanging the word method into gear in the fishing methods classified newly for eliminating the problems was established. The new system to which the actual gears are arranged is as follows ; (1)Harvesting gear \circled1Plucking gears : Clamp, Tong, Wrench, etc. \circled2Sweeping gears : Push net, Coral sweep net, etc. \circled3Dredging gears : Hand dredge net, Boat dredge net, etc. (2)Sticking gears \circled1Shot sticking gears : Spear, Sharp plummet, Harpoon, etc. \circled2Pulled sticking gears : Gaff, Comb, Rake, Hook harrow, Jerking hook, etc. \circled3Left sticking gears : Rip - hook set line. (3)Angling gears \circled1Jerky angling gears (a)Single - jerky angling gears : Hand line, Pole line, etc. (b)Multiple - jerky angling gears : squid hook. \circled2Idly angling gears (a)Set angling gears : Set long line. (b)Drifted angling gears : Drift long line, Drift vertical line, etc. \circled3Dragged angling gears : Troll line. (4)Shelter gears : Eel tube, Webfoot - octopus pot, Octopus pot, etc. (5)Attracting gears : Fishing basket. (6)Cutoff gears : Wall, Screen net, Window net, etc. (7)Guiding gears \circled1Horizontally guiding gears : Triangular set net, Elliptic set net, Rectangular set net, Fish weir, etc. \circled2Vertically guiding gears : Pound net. \circled3Deeply guiding gears : Funnel net. (8)Receiving gears \circled1Jumping - fish receiving gears : Fish - receiving scoop net, Fish - receiving raft, etc. \circled2Drifting - fish receiving gears (a)Set drifting - fish receiving gears : Bamboo screen, Pillar stow net, Long stow net, etc. (b)Movable drifting - fish receiving gears : Stow net. (9)Bagging gears \circled1Drag - bagging gears (a)Bottom - drag bagging gears : Bottom otter trawl, Bottom beam trawl, Bottom pair trawl, etc. (b)Midwater - drag gagging gears : Midwater otter trawl, Midwater pair trawl, etc. (c)Surface - drag gagging gears : Anchovy drag net. \circled2Seine - bagging gears (a)Beach - seine bagging gears : Skimming scoop net, Beach seine, etc. (b)Boat - seine bagging gears : Boat seine, Danish seine, etc. \circled3Drive - bagging gears : Drive - in dustpan net, Inner drive - in net, etc. (10)Surrounding gears \circled1Incomplete surrounding gears : Lampara net, Ring net, etc. \circled2Complete surrounding gears : Purse seine, Round haul net, etc. (11)Covering gears \circled1Drop - type covering gears : Wooden cover, Lantern net, etc. \circled2Spread - type covering gears : Cast net. (12)Lifting gears \circled1Wait - lifting gears : Scoop net, Scrape net, etc. \circled2Gatherable lifting gears : Saury lift net, Anchovy lift net, etc. (13)Adherent gears \circled1Gilling gears (a)Set gilling gears : Bottom gill net, Floating gill net. (b)Drifted gilling gears : Drift gill net. (c)Encircled gilling gears : Encircled gill net. (d)Seine - gilling gears : Seining gill net. (e)Dragged gilling gears : Dragged gill net. \circled2Tangling gears (a)Set tangling gears : Double trammel net, Triple trammel net, etc. (b)Encircled tangling gears : Encircled tangle net. (c)Dragged tangling gears : Dragged tangle net. \circled3Restrainting gears (a)Drifted restrainting gears : Pocket net(Gen - type net). (b)Dragged restrainting gears : Dragged pocket net. (14)Sucking gears : Fish pumps.

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Studies on the Catch by Trawl Fishing in the Atlantic Coast of Africa -II Diurnal Variation of the Catch of Important Species Groups per Unit Hauling (대서양 아프리카연안 트로올어장의 어황에 관하여 -II)

  • 김진건
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.15 no.2
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    • pp.67-76
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    • 1979
  • Diurnal variation of the catch of some important species groups in the Northwestern coast of Africa were studied on the basis of fish catching data compiled by a stern trawler(G.T., 499ton 2,200ps). The experimental fishing has been conducted from September, 1975 to August, 1976. The catch of the important groups I. e. squid, cuttlefish, octopus, sole fish and sea bream revealed different fluctuation patterns. The results obtained are as follows: 1. The catch of squid caught in daytime(0900-1800) was greater than that caught in night (2100-0600). 2. The catch of cuttle fish caught in daytime was more than that caught in night. In the daytime, large size group(heavier than 300g) was caught dominately during midday (1200-1500) whereas the small size group, lighter than 300g, was caught dominately during the time of sunrise (0600-0900) and sunset (1800-2100). 3. The catch of octopus varied according to the size groups. The large sige group, heavier than 700g, was caught predominately during daytime and the small size group, lighter than 700g, was caught predominately during night. 4. The catch of sole fish caught in night was greater than that caught in daytime. 5. The catch of sea bream and miscellaneous fishes including sardin, jack-mackerel and etc. was greater in daytime.

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Quality improvement of retorted frozen seafood by adding sorbitol (솔비톨 첨가에 의한 냉동 해산물의 레토르트 후 품질 향상)

  • Cho, Won-Il;Song, Sang-Hoon
    • Korean Journal of Food Science and Technology
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    • v.49 no.1
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    • pp.85-89
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    • 2017
  • This study was conducted to prevent hardened texture in retorted frozen seafoods such as small octopus, squid, and top shell by adding sorbitol; the strength of mechanical hardness and other qualities were measured. The hardness of the 3 kinds of seafood pretreated with 2-4% (w/w) sorbitol solution decreased by 9-36% compared to the control. The hardness of retorted frozen octopus, squid, and top shell treated with sorbitol solution upon freezing significantly decreased to 1670, 1015, and $521g_f/cm^2$ compared to levels in untreated food of 1841, 1291, and $815g_f/cm^2$ (p<0.05), respectively. Yields based on weight in retorted seafood treated with sorbitol were increased by 2-5% compared to untreated samples. Additionally, the overall preference of texture was 0.4 points higher than that of control samples in descriptive sensory evaluation (p<0.05). The tissue softening of pretreated seafood was based on decreased dewatering due to the formation of small ice crystals during freezing as a result of sorbitol treatment.

Analysis of Catch and Effort by Diving women in Tonggui-ri, Cheju-do (제주도 동귀 어촌계의 잠수노력량 및 어획량분석)

  • CHUNG Sang-Chul;HONG Young-ja
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.26 no.1
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    • pp.41-48
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    • 1993
  • Using the eight-year-working diaries($1984{\sim}1991$) of the fishing co-operative in Tonggui-ri, Cheju-do, as well as the records of consignment sale in the fish trust market as the corporate body in Aewol-up, the results have been analyzed as follows. 1. The monthly catch of Turbo cornutus was high from September through December, representing $58.2\%$ of the annual total catches. The maximum sustained yield(MSY) of this stock was estimated to be 2.5 tons. 2. The maximum sustained yields of Haliotis spp. and Sulculus sp. were estimated to be 800kg and 750kg, respectively. 3. The maximum sustained yields of Stichopus sp. and Octopus sp. were 500kg and 2, 500kg, respectively. 4. The total yield of Hizikia fusiforme has been decreasing a little and that of Gelidium sp. has been increasing. The total yield of Gelidium sp. in 1984 was about 5 times greater than that in 1990. 5. The daily catchability by divers have been high at thirties, and the individual mean working day of divers was 101 per year. 6. The consignment sale rates were $100\%$ each for Turbo cornutus, Hiziki fusiforme and Gelidium sp., $25.5\%$ and $61.1\%$ for Haliotis sp. and Stichopus sp. respectively, and $0\%$ each for Sulculus sp. and Octopus sp.

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A Comparative Study on the Figurative Representation in Chinese and Korean Comedic Stories and the mitate of Japanese Comedic Stories (한중 소화(笑話) 속의 비유표현과 일본소화 속의 미타테(見立て)기법의 비교고찰)

  • Keum, Young-Jin
    • Cross-Cultural Studies
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    • v.40
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    • pp.7-39
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    • 2015
  • A kite in Japanese is the octopus. The reason is that when they saw the tail of the kite, they remembered the foot of octopus. And this kinds of associative action is called a mitate(見立て) in Japanese. Mitate is similar to metaphor, but these two concepts are somewhat different in causing laugh. Korean and Chinese comedic story's metaphor cause laugh by similarity of two things, but Japanese comedic story's mitate cause laugh by dissimilarity of two things. Chinese and Korean comedic stories focus on 90%'s similarity of two things, but Japanese comedic stories focus on 10%'s dissimilarity of two things. So, in this paper, I tried to consider the mitate of comedic stories of East Asia, and I found that there are the following three features. First, we can see the tendency of Chinese and Korean comedic stories's mitate concern on the human body's physical weakness. But, Japanese comedic stories subject to not the human body's physical weakness but the human's professional or identification temperament. Second, East Asian's comedic stories mitate which related character and word play came from the method of decomposition of Chinese characters, for that area's people have used Chinese characters for a long time. However, there are different cases in Japanese comedic story's Chinese characters mitate, where that characters mitate is combined with two different type's characters, for example, to associate one Chinese character and another Japanese characters, hiragana or katakana. Third, there are next type's mitate which came from misunderstanding of Chinese characters, it can be seen in Chinese and Korean comedic stories. Perhaps, this pattern related with Chinese three syllable's character pattern, which is a Chinese traditional word and character play.

Possibility of Fishery in Offshore Wind Farms (해상풍력발전단지 내 어업 가능성에 관한 고찰)

  • Jung, Cho-Young;Hwang, Bo-Kyu;Kim, Sung-Cheol
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.25 no.5
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    • pp.535-541
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    • 2019
  • The purpose of this study was to investigate the possibility of fishery in offshore wind farms and evaluate the risk linked to the presence of turbines and submarine cables in these areas. With this objective, we studied an offshore wind farm in the Southwest Sea and the current state of vessels in the surrounding National Fishing Port. The risk assessment criteria for 22 fishing gears and methods were set by referring to the fishing boats; thereafter, the risk was assessed by experts. The fishing gears and methods that could be safely operated (i.e., associated with low risk) in the offshore wind farm were: single-line fishing, jigging, and the anchovy lift net. The risk was normal so that it is possible to operate, but the fishing gears and methods that need attention are: the set long line, drifting long line, troll line, squid rip hook, octopus pot, webfoot octopus pot, coastal fish pot, stow net on stake, winged stow net, stationary gill net, and drift gill net. Moreover, the fishing gears and methods difficult to operate in the of shore wind farm (i.e., associated with high risk) were: the dredge, beam trawl, and purse seine. Finally, those associated with very high risk and that should not be allowed in offshore wind farms were: the stow net, anchovy drag net, otter trawl, Danish seine, and bottom pair trawl.

A Study of Wedding Feast Dishes in Gare Dogam Euigwae (1651, 1696) (가례도감의궤(嘉禮都鑑儀軌)에 나타난 1600년대(年代)의 조선왕조(朝鮮王朝) 궁중(宮中) 가례상(嘉禮床)차림 고(考) -1651년(年) 현종(顯宗) 명성후(明聖后), 1696년(年) 경종(景宗) 단의후(端懿后) 가례동뢰연(家禮同牢宴)-)

  • Kim, Sang-Bo;Lee, Sung-Woo
    • Journal of the Korean Society of Food Culture
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    • v.5 no.1
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    • pp.43-58
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    • 1990
  • To analyze wedding feast dishes of royal prince (1651, 1696) of Choson Dynasty, studied Gare Dogam Euigwae. Historic book 'Gare Dogam Euigwae' discribed wedding feast dishes of king‘s Choson Dynasty. The results obtained from this study are as follows. Dishes were arranged in four kinds of table, the first one called the main table, the second the right side table, the third the left side table, the fourth the confronting side table. Dishes of main table were oil and honey pastry, and fruits (pine nuts, orange, dried persimmon, torreya nuts, dried chestnut, jujube). Dishes of the second table and the third table were oil and honey pastry, and small cake made of honey and rice with patterns pressed in it. Dishes of the fourth table were cooked vegetable (wild ginseng, platy-codon, radish, white gourd melon, ginger), dried slices of meat seasoned with spices (abalone, octopus, shark, pheasant), cooked meat (wild goose, fowl, egg, pheasant, abalone), and fried fish (roe deer, fish, duck, pigeon, sparrow). The main table (同牢大宴床) and the second table (右挾床) stand as a symbol for integrity. The third table (左挾床) symbolize longerity. The fourth table (面挾床) symbolize bearing many young and connubial felicity.

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Multivariate Analysis and Gas Chromatographic Determination of the Smelly Nitro Compounds in Dried-Fishes (GC에 의한 건어물 냄새성분중 질소화합물 분석과 다변량해석)

  • Bae, Sun Young;Lee, Dong Sun
    • Journal of the Korean Chemical Society
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    • v.41 no.2
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    • pp.105-112
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    • 1997
  • The smelly nitro compounds were extracted from dried fishes by simultanous distillation and extraction, then were analyzed by GC-MS. Carbon number and order of an amine could be predicted by using retention time and equivalent chain length. Anchovy, codfish, imitation crab meat, cuttle fish, file fish, pollack, shrimp, octopus, harvest fish, and hard-shelled mussel were used for this investigation. Various smelly nitro compounds such as methylamine, acetamide, thiazole, 2-hydroxy isopropylamine, N-methyl pyrroline, piperidine, cyclohexylamine were identified, however, dimethylamine, trimethylamine, diethylamine were not detected. Principal components analysis was applied to GC-MS profiles for pattern recognition of smelly nitro compounds in dried fishes. Multivariate aspects using principal components analysis were very useful for pattern recognition of smelly components, category similarity.

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A Study of Chunshin(薦新) Ceremony Food Items from Annals of the Chosun Dynastys (조선시대 궁중의 천신(薦新) 식품에 대한 고찰)

  • 한복진
    • Journal of the East Asian Society of Dietary Life
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    • v.12 no.6
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    • pp.489-501
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    • 2002
  • The list of monthly offering items of the Chunshin(薦新) ceremony, the service of offering the first food product of year to ancestors, shown in the Walryong(月令) in Oreaeui(五禮儀), the book written in early years of the Chosun dynasty, was studied and classified by food group. Six kinds of the cereals and grain products - barley, wheat, an early-ripening rice plant, a barnyard millet, and millet seed were offered. The meat products offered were wild geese, pheasants, swans, hares and dried-pheasants. Though not shown in e Walryong, roe deer and deer were offered from hunting trips in e winter. Eight kinds of sea-fish, six kinds of fresh-water first and six kinds of other seafood such as crab, octopus, and squid were offered. Ten kinds of vegetables: bamboo shoots, e99plants, cucumbers, etc. - were offered. Eleven kinds of tree fruits - cherries, apricots, Pears, etc., seven kinds of citrus fruits - tangerines, citrons, etc., seven kinds of nuts - chestnuts, pine-nuts, etc. and two kinds of melons - watermelons etc. - were offered. The hi인est variety in the offering items was the fruits category The remaining offering items included wine brewed from new rice. new brown seaweed, and green tea.

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The mitochondrial genome of Tremoctopus violaceus (Octopoda, Tremoctopodidae) and its phylogenetic consideration

  • Oh, Dae-Ju;Lee, Jong-Chul;Jung, Yong-Hwan
    • Fisheries and Aquatic Sciences
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    • v.25 no.3
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    • pp.158-166
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    • 2022
  • The complete mitochondrial genome of Tremoctopus violaceus was sequenced to analyze its organization and phylogenetic status within the order Octopoda. The mitochondrial genome of T. violaceus had a structure and organization similar to that of other Octopoda. The content of the nucleotides A, C, G, and T was 31.68 %, 7.71 %, 20.02 %, and 40.58 %, respectively. All protein-coding genes (PCG) began with the ATG codon, excluding ND4 and ATP6, which began with ATC and ATT, respectively, and terminated with TAG, TAA, TA, or T. Codons for isoleucine were the most used codons, whereas those for arginine were used the least. Two extra tRNAs, trnN and trnL, were found in the control region. These tRNAs have a D-armless structure. The control region had excess A + T content (83.16 %) and a stem-loop structure with two elements, which is reported for the first time in Octopoda by our study. Bayesian inference using 13 PCG revealed that Octopus and Octopodidae were polyphyletic, and that Tremoctopodidae diverged relatively earlier within Octopoda. The mitochondrial genome of T. violaceus and its characteristics may help to understand the evolutionary history of Octopoda and establish a marine biodiversity conservation strategy.