Academic literature on the topic 'Spear fishing'

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Journal articles on the topic "Spear fishing"

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Barreiros, João P. "Solidarity Fishing – Spear Fishing of Alien Fish Feeds People." International Journal of Marine Biology and Research 1, no. 2 (October 31, 2016): 1. http://dx.doi.org/10.15226/24754706/1/2/00106.

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Beckerman, Stephen. "Bar� spear fishing: Advantages to group formation?" Human Ecology 19, no. 4 (December 1991): 529–54. http://dx.doi.org/10.1007/bf00889795.

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Hoefflin, Steven M., and Alex Rubin. "SPEAR FISHING: PEARLS IN REPOSITIONING FACIAL SOFT TISSUE." Plastic and Reconstructive Surgery 106, no. 6 (November 2000): 1428. http://dx.doi.org/10.1097/00006534-200011000-00043.

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Guidetti, P., E. Vierucci, and S. Bussotti. "Differences in escape response of fish in protected and fished Mediterranean rocky reefs." Journal of the Marine Biological Association of the United Kingdom 88, no. 3 (May 2008): 625–27. http://dx.doi.org/10.1017/s0025315408000933.

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In both protected and fished rocky reefs in the southern Adriatic Sea, the behaviour of the sea breams Diplodus sargus and D. vulgaris (both targeted by spear-fishing) in the presence of divers was found to be mostly negative (i.e. escape response). However, at protected reefs sea breams frequently swam into the closest shelters, whereas in fished reefs they mostly escaped in open water. This study suggests that spear-fishing may alter the escape response of fish from natural predators and that marine reserves may re-establish natural behaviour patterns.
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Ota, Yoshitaka. "Fluid Bodies in the Sea: An Ethnography of Underwater Spear Gun Fishing in Palau, Micronesia." Worldviews: Global Religions, Culture, and Ecology 10, no. 2 (2006): 205–19. http://dx.doi.org/10.1163/156853506777965811.

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AbstractUnderwater spear gun fishing is the most popular fishing method used in indigenous inshore fishing in Palau, West Micronesia. Two major characteristics of this method are: first, the opportunity offered to fishermen to enter and experience another sphere of the seascape, the underwater world; and, second, the extreme physical challenge involved in the fishermen's constant bodily movement in and under the water. Fishermen skin-dive deep into coral reefs in order to shoot fish with hand-made spear-guns, swimming through the water swiftly to approach their targets. In this form of fishing, they experience the fluid nature of the underwater domain at the level of their skin, and move their bodies in accord with the visibility, auditory experience and the physicality of the particular environment. This paper argues that the fishermen's focus on bodily movement contributes to their constructions of masculinity, and culturally embodies the fluidity of underwater seascapes.
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Lukman, L., T. Triyanto, G. S. Haryani, O. Samir, L. Gogali, and K. P. Bandjolu. "Eel (Anguilla spp.) fishing activity in Poso Area Central Sulawesi, Indonesia." IOP Conference Series: Earth and Environmental Science 869, no. 1 (November 1, 2021): 012022. http://dx.doi.org/10.1088/1755-1315/869/1/012022.

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Abstract Poso in Sulawesi, primarily the Lake Poso and Poso River, is known as eel (Anguilla spp.) fishing areas. Therefore, research of eel fishing is required as base information for evaluating and determining policies for its activities. The eel fishing research in the Poso area was conducted through primary data observations, secondary data traces, and interviews from April to June 2021. The fishing activities take place in the Lake Poso and Poso River shore and the rivers of the lake inlets. The fishing gear that contributed greatly to the catch was fence traps and spears. The local community’s fence trap called waya is a unique gear only found in this area, and it is installed in Poso River around the lake outlets. The gears block the rivers to catch downstream migration eels. The spear is fishing gear (including for eels) operated at night in shallow waters, especially in the outlets of Lake Poso. The eel production recorded from the Poso areas for the last four years has been 6.7–15.5 tons per year, and the highest production was in Pamona Puselemba.
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New, William, and Loucas Petronicolos. "Spear Fishing in Wisconsin: Multicultural education as symbolic violence." Race Ethnicity and Education 4, no. 1 (February 2001): 5–27. http://dx.doi.org/10.1080/713693048.

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Petronicolos, William New, Loucas. "Spear Fishing in Wisconsin: multicultural education as symbolic violence." Race, Ethnicity and Education 4, no. 1 (February 1, 2001): 5–27. http://dx.doi.org/10.1080/13613320124085.

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Zeligowski, A. A., M. Ilsar, S. Berger, R. Zeltser, and J. Pe'er. "Eye Injuries Induced by a Barbed Three-Pronged Fishing Spear." Archives of Ophthalmology 104, no. 5 (May 1, 1986): 639. http://dx.doi.org/10.1001/archopht.1986.01050170029007.

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Joadder, Md Abdur Razzaq, Md Bayezid Alam, Md Abu Bakar Siddique, and Jannatun Naim. "Present status of fish diversity in the Beel Kumari in relation to fish sanctuary and fishing gears." Journal of Fisheries 4, no. 2 (August 31, 2016): 390. http://dx.doi.org/10.17017/jfish.v4i2.2016.172.

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The study was conducted on Beel Kumari beel (wetland) in Rajshahi, Bangladesh from October 2013 to September 2014. A total of 52 species of fish were recorded and the dominant species was Mystus tengara (Tanagra (9.75%). Exotic species like bighead carp (Aristichthys nobilis), silver carp (Hypophthalmichthys molitrix) and common carp (Cyprinus carpio) were also commonly found. Of the indigenous species, Ompok bimaculatus, Puntius sarana, Pseudeutropius atherinoides, Botia dario, Mystus aor and Chitala chitala were abundant, though these species were rare before the establishment of the fish sanctuary. Four groups of fishing gears i.e. net, trap, spear and harpoons and line fishing were found to use, among them 8 types of net, 7 types of trap, 4 types of spear and harpoon and 4 types of line fishing were recorded. Among these gill net contributed to the highest catch (32%) and push net was the lowest (6%). Most of the respondents (80%) were found to believe that their fish catch had increased considerably due to impact of fish sanctuary establishment and effective community based fisheries management approach employed in this beel.
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Dissertations / Theses on the topic "Spear fishing"

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Clarke, John Ross. "Aspects of the biology of the musselcracker, Sparodon Durbanensis, and the bronze bream, Pachymetopon grande, (Pisces : Sparidae), with notes on the Eastern Cape recreational rock-angling and spear fisheries." Thesis, Rhodes University, 1988. http://hdl.handle.net/10962/d1001966.

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The musselcracker, Soarodon durbanensis, and the bronze bream, Pachymetopon arande, are important components of rock-angling and spearfishing catches In the Eastern Cape. Aspects of their biology, including age and growth, reproduction, nursery areas and feeding, were Investigated to provide a basis for the rational exploitation of the resource. Both species are slow-growing and long-lived. Growth in S. durbanensls was described by the von Bertalanffy growth equation: Lt(mm) = 1021.2(1-e⁻°.°⁹°°⁽t ⁻° .⁷°⁹⁾). The von Bertalanffy growth model did not describe the total data set in P. grande, but by excluding the zero and one year old fish the data were described by: Lt(mm) = 461.1(1-e⁻°.¹⁵³⁽t ⁺¹.⁶⁴°⁾). Detailed histological examination of gonadal development showed that S. durbanensis and P. grande are rudimentary hermaphrodites. Both species had restricted breeding seasons which coincided with peak exploitation. Results indicated that both species are group spawners with pelagic eggs. Size at 50% maturity in S. durbanensis and P. grande was determined at 350 and 300mm fork length, respectively, corresponding to ages of 4.5 and 5.5 years. Intertidal pools functioned as nursery areas for S. durbanensis during the first year, whereas subtidal waters were more important for larger juveniles. P. grande juveniles were commonly observed on subtidal weed beds to a depth of 10m. A size-related change in the diet of S. durbanensis was observed. The juveniles were omnivorous, feeding predominantly on gastropods, echinoids and chlorophytes. The adults fed on a variety of large, reef-associated invertebrates. P. grande were omnivorous, with macroalgae being the principal dietary component. This species appears to utilise the storage and extracellular carbohydrates of the macroalgae. Results showed that macroalgal degradation by gut endosymbionts and the utilisation of macroalgal epibionts does not appear to occur in this species. A detailed analysis of catch composition and catch per unit of effort In the Port Elizabeth rock-angling fishery and the Eastern Cape spearfishery emphasised the recreational importance of S. durbanensis and P. grande. The localised distribution, slow growth and late maturation in both species results in their being susceptible to over-exploitation in these size-selective fisheries. Current legislation protecting these fish is discussed in relation to the findings of this study and additional management measures are proposed.
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Books on the topic "Spear fishing"

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E, Johnson J. Spearfishing competitions in South Australia, 1983-1984. Adelaide, S. Aust: Dept. of Fisheries, 1985.

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Luciano Moreira de Sousa Filho. As aventuras de um pescador sub. Fortaleza: ABC Editora, 2002.

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Faler, Richard E. Spearing suckers & carp. Greenville, Pa: Beaver Pond Pub., 1998.

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C. Hugo Stockler de Souza. O homem da ilha e os pioneiros da caça submarina. 2nd ed. [Tubarão, Santa Catarina, Brazil]: Editora Dehon, 2000.

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Eli, Gottlieb, Michaan Steven J, and Museum of American Folk Art., eds. Beneath the ice: The art of the spearfishing decoy. New York: E.P. Dutton, 1990.

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Fontova, Humberto. The helldivers' rodeo: A deadly, extreme, spear fishing adventure amid the offshore oil platforms in the murky waters of the Gulf of Mexico. Waterville, Me: Thorndike Press, 2001.

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Maas, Terry. Bluewater hunting and freediving. Ventura, Calif: BlueWater Freedivers, 1995.

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Eyles, Carlos. Last of the blue water hunters. New York: Aqua Quest Publications, 2004.

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Fontova, Humberto. The helldivers' rodeo: A deadly, extreme, spear fishing adventure amid the offshore oil platforms in the murky waters of the Gulf of Mexico. Waterville, Me: Thorndike Press, 2001.

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Eyles, Carlos. The last of the blue water hunters. Los Angeles, Calif: Creative Endeavor, 1985.

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Book chapters on the topic "Spear fishing"

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"fishing spear." In Dictionary Geotechnical Engineering/Wörterbuch GeoTechnik, 527. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41714-6_61159.

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Kipling, Rudyard. "How the Alphabet was Made." In Just So Stories for Little Children. Oxford University Press, 2009. http://dx.doi.org/10.1093/owc/9780199538607.003.0010.

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HE week after Taffimai Metallumai (we will still call her Taffy, Best Beloved) made that little mistake about her Daddy’s spear and the Stranger-man and the picture-letter and all, she went carp-fishing again with her Daddy. Her Mummy wanted her to stay at home...
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"Muskellunge Management: Fifty Years of Cooperation Among Anglers, Scientists, and Fisheries Biologists." In Muskellunge Management: Fifty Years of Cooperation Among Anglers, Scientists, and Fisheries Biologists, edited by Jason B. Smith, Mary Tate Bremigan, Daniel B. Hayes, and Michael V. Thomas. American Fisheries Society, 2017. http://dx.doi.org/10.47886/9781934874462.ch30.

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<em>Abstract</em>.—The current Lake St. Clair Great Lakes Muskellunge <em>Esox masquinongy </em>fishery is entirely self-sustaining and dominated by a catch-and-release ethic. Catch rates of Lake St. Clair Muskellunge are among the highest documented for this species, and angler catches of trophy Muskellunge are considered relatively commonplace. The proximity of Lake St. Clair to many potential new Muskellunge anglers, interest among some anglers in restoring a long-prohibited winter spear fishery, and warming temperatures associated with climate change pose potential threats to the quality of this fishery. We developed an age-structured equilibrium yield model to project the likely effects of altered size and harvest limits, increased angling effort, establishment of a winter spearing season, or warming temperatures on open-water angling catch rates of three size-classes of Lake St. Clair Muskellunge (all fish ≥ age 1, legal-sized fish > 107 cm, and trophy-sized fish > 127 cm). Our modeling indicated that changes in regulations in the Lake St. Clair Muskellunge fishery were unlikely to result in substantial changes to catch rates of Muskellunge of any size-class. Similarly, the current high rate of voluntary release would largely buffer catch rates of all size-classes of Lake St. Clair Muskellunge from increases in fishing effort. Our simulation of a winter spearing fishery indicated that only high levels of spearing effort and harvest would reduce open-water catch rates to a degree that would likely be objectionable to anglers. In contrast, the predicted catch rates of legal-and trophy-sized fish were highly sensitive to modeled reductions in growth. As such, the major threat to this trophy Muskellunge fishery appears largely outside the traditional toolbox of fisheries managers, hastening the need for development of resilient management and monitoring plans for this valuable fishery.
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Elizondo Griest, Stephanie. "The Mother Tongue." In All the Agents and Saints. University of North Carolina Press, 2017. http://dx.doi.org/10.5149/northcarolina/9781469631592.003.0018.

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What does it mean to be Mohawk today—especially given that so many traditions (hunting, fishing, fur trapping, basketry) have been compromised by outside influences (polluting industries, the drug trade, human trafficking, the Internet)? Of Akwesasne’s 12,000 residents, only a thousand still speak their native language fluently. Most of them are elderly. This chapter investigates Mohawk efforts to revitalize their native language, including an immersive K-8 school called the Akwesasne Freedom School. The author also reflects upon the loss of her own mother tongue back in the South Texas public education system, where Tejano children were punished for their Mexican accents.
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Conference papers on the topic "Spear fishing"

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Ndjawe, Yannick, Benjamin Briere, David Lescoulie, Arnaud Bragas, Joel Penka, Andres Hernandez, Bill Macpherson, Maximilien Hallaire, and Peder Løkke Borg. "Dynamic E-Line Conveyed Milling Solution Remediates Subsea (XT) Gate Valve Operating From RLWI." In SPE/ICoTA Well Intervention Conference and Exhibition. SPE, 2024. http://dx.doi.org/10.2118/218328-ms.

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Abstract An oil-producing subsea well located offshore Congo was equipped with an inoperable subsea vertical xmas tree (XT), in specific the production master gate valve in the vertical bore stuck at 55% to 65% open following the measurement of the valve stub. The inoperability of the valve actuators resulted in the temporary closure of the oil-producing well in 2017, as it was defined necessary by the operator well integrity policy, for this reason, the XT had to be replaced using a rigless light well intervention (RLWI), due to water depth of 800meter. In order to do so, temporary plugs needed to be run in hole to provide temporary barriers and allow the XT tree change-out to be completed. To achieve such an objective the partially open gate valve had to be milled out. The operator issued a challenge to the oilfield services industry to present a solution to mill the partially open gate valve via RLWI vessel. The supplier responded with a solution that could mill the gate valve in a single run, including recovery of the milled coupon. In addition, the solution would ensure that all the operational well barriers remained free from obstruction in the event of the milling toolstring becoming stuck, with fishing contingencies also in place. The resulting solution utilized a wireline-deployed milling toolstring equipped with a fully automated milling stroker, a metal matrix compound (MMC) core bit with an eccentric spear mechanism, shearable spacers, and contingency featuring an electric release fishing tool (ERFT). The benefits of this solution related to several areas; the surface read-out system allowed precise control of the milling BHA. The partially open gate valve was successfully milled through, and the coupon recovered to the surface on a single run, with a total milling time of 14 hours and 40 minutes. This paper discusses the challenges and solutions related to milling a partially open gate valve on a closed oil-producing subsea well using an RLWI vessel offshore Congo. It covers the project scope, solution design, planning, equipment preparation, job execution, and provides estimates of risk and cost reduction to as well the added production level resulting from this operation.
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Fukuda, Kengo, Hanifan Mayo Biyanni, Motohiro Toma, Samaawi Moslim Moslim, Takahiro Toki, Ali Yousef Al Zaabi, Abdelrahman Najjar, and Omar Chammout. "Hollow Bit: The First Worldwide Campaign Result of a Breakthrough Technology of Slot Recovery Technique in Offshore Abu Dhabi Field." In ADIPEC. SPE, 2022. http://dx.doi.org/10.2118/211520-ms.

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Abstract Demands for reutilizing existing slots on the offshore platform are expected to rise to maintain oil and gas productivity by drilling and completing the well to different targets, whereas most of the slots are occupied in mature fields. Slot recovery operations are one of the solutions to recover occupied slots. Different slot recovery techniques have been executed in the Offshore Abu Dhabi field, which include cut & pull, milling, Casing Pulling Tool, and Conductor Deflector Tool techniques which are time-consuming and require high overpull to release the casings. The hollow bit is a slot recovery technique that enables the user to recover casing by the standard fishing tool (i.e., casing spear and overshot) without excessive overpull which inherits a risk of surface equipment damage and safety issues on the rig floor. Moreover, overcoming the strong cement bonding between a 30" conductor and 13-3/8" casing is difficult and is dependent on the cement condition. The casing is cut into short intervals to be pulled out which results in a long operation duration. Hollow bit removes the annulus cement between 30" conductor pipe and 13-3/8" casing by washing over the cement. Casing cuts can be minimized since the removal of cement from the annulus overcomes the cement condition uncertainties which results in a shorter slot recovery duration. This paper presents the 3 hollow bit field trials conducted in 2021-2022 in Offshore Abu Dhabi. Lessons learned accumulated from each trial were implemented in subsequent wells to improve the performance. Performance was increased by 60% compared to other slot recovery methods by reducing the operation duration from 20.8 days to 12.5 days. Best practices that can be implemented to similar application by hollow bit are also presented.
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Gabrielsen, Øystein, Kjell Larsen, Svein Helge Gjøsund, Karl-Johan Reite, Kurt Eide, Hans-Jørgen Haugland, and Alberto Leao. "Qualification Method for Cut Resistant Jackets for Fiber Mooring Ropes." In Offshore Technology Conference. OTC, 2021. http://dx.doi.org/10.4043/30962-ms.

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Abstract The Aasta Hansteen spar platform in the Norwegian Sea has a polyester rope mooring system. The anchors and large parts of the polyester ropes are outside of the safety exclusion zone granted by the Norwegian authorities. Fishing vessels cannot be denied as long as they are outside of the safety zone, and the polyester mooring ropes need to withstand abrasion loads from the possible fishing activity. A fishing activity study in 2013 defined probability for fishing, size of possible fishing vessels and type of fishing equipment. Numerical simulations of the mooring system and crossing fishing trawl equipment made it possible to establish trawl abrasion load cases, including trawl wire lengths, speed and contact pressure. No jacket design or jacket material was at the time confirmed to withstand the established abrasion loads. The jacket solution to be chosen for the project thus needed to be specially developed, designed, tested and approved to give sufficient resistance against the established abrasion loads. Several vendors developed and offered different jacket solutions, and the selection of cut resistant jacket was dependent on adequate testing. Based on input and comments from Equinor and rope vendors, DNV constructed a test rig extension to their 2500T horizontal test bed, where the required length of trawl wire was pulled over the polyester rope with the needed contact pressure. Full-size (diameter) ropes with the proposed cut resistant jackets were tested, including break strength testing after the abrasion test. This paper presents how the possible trawl activity was defined, the numerical simulation of trawl/mooring line interaction, the test rig setup and some test results of the trawl wire abrasion testing.
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Ford, John Duncan, Ralph McDaniel, and Gary Barbee. "HWO/Snubbing Unit used Effectively for Subsea Flowline Fishing and Cleanout at Nansen Spar." In SPE/ICoTA Coiled Tubing & Well Intervention Conference and Exhibition. Society of Petroleum Engineers, 2011. http://dx.doi.org/10.2118/143248-ms.

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Ouchi, Kazuyuki, Seiko Ogiwara, Eiichi Kobayashi, Kenji Fukumiya, Masayuki Yonezawa, and Ken Kato. "Ocean Nutrient Enhancer: Creation of Fishing Ground Using Deep Ocean Water." In ASME 2002 21st International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2002. http://dx.doi.org/10.1115/omae2002-28355.

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The project to create the fishing ground in the open ocean by rising Deep Ocean Water (DOW) and discharging it in the euphotic layer where photosynthesis can be done by DOW’s rich nutrient salt has been carried out since April 2000, sponsored by Japanese Government Fisheries Agency and Marino-Forum 21. The name of this machine is called Ocean Nutrient Enhancer (ONE for short). As the output of the first year research which includes tank tests, computer simulations and feasibility studies, following outline of the ONE’ concept is proposed. • Rising DOW of 500m depth and 500,000m3/day with the special impeller which makes density current in the euphotic region. • Power for driving the impeller is supplied by OTEC (Ocean Thermal Energy Conversion) engine using a cold characteristics of DOW. • Adopting the configuration of submerged spar type as a floating construction to work safely and continuously against the rough sea. • Upending of the riser pipe is considered for the reliable and cost-effective setting up operation. From the above research, the ONE’s effectiveness is confirmed significantly.
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Ouchi, Kazuyuki. "Results From Real Sea Experiment of Ocean Nutrient Enhancer TAKUMI." In ASME 2009 28th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2009. http://dx.doi.org/10.1115/omae2009-79866.

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Upwelling and scattering Deep Ocean Water (DOW) into the euphotic surface layer has been proposed by many oceanographers as a “fishing ground of artificial upwelling”. So far, however, there are no successful means to make it, because of the following difficulties; the very huge amount of DOW upwelling, the dilution of DOW’s nutrient salts in the sea, enduring the rough sea condition on offshore, the strength of very long riser pipe for upwelling, etc. The MARINO-FORUM 21, sponsored by Japanese government fisheries agency, organized the research and development project of an ocean nutrient enhancer named TAKUMI and real sea experiment using it, since the year of 2000. New technology concept, featuring the density current generator for avoiding dilution of nutrient salts, the spar type submersible floating structure for withstanding against the rough sea condition, and the design and analysis of riser pipe for not only in case of the rough sea but also in case of the upending which is world first challenge of election of steel riser pipe with gravity fall in the sub-sea, was studied and introduced for the design of TAKUMI as a proper Ocean Nutrient Enhancer. TAKUMI that upwells DOW of 100,000m3/day from 200m depth and discharges it into the euphotic layer with Diesel engine was manufactured and set-up at the center of Sagami Bay in Japan, in May 2003. More than five years continuous operation in various sea conditions, which includes very rough sea in typhoon and rapid current, caused by direction change of Kuroshio Current was carried out. Also, the behavior of the nutrient water mass and the pattern of primary production around TAKUMI was investigated using the research vessel Tansei Maru. The results from the real sea experiment lead us to believe that the TAKUMI type artificial DOW upwelling system can be feasible to increase a primary production and make a fishing ground in case of large size system of more than 1,000,000m3/day.
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Yoshida, Takero, Daisuke Kitazawa, and Yoichi Mizukami. "Assessment of the Motion of Wave Power Generation by Water Tank Test." In ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/omae2017-61622.

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Installing devices of marine renewable energy is planned off Kamaishi city, Iwate prefecture, Japan. A device of wave power generation was settled at this site as a test case. It is important to coexist the power generation device and local fishermen. Since Kamaishi is known as a good fishing area, acceptance of fishermen is required to run the wave power generation at the test site. Especially, local fishermen in Kamaishi have a concern about how wave power generation moves along with ocean waves and currents. To acquire an acceptance from local fishermen in terms of setting wave power generation, a model test was conducted to understand the device of wave power generation. It consists of float, spar, middle float, gimbal mechanism and anchor. Middle float, gimbal mechanism and anchor are mooring. The submerged weights of the model almost satisfy the targeted values calculated by the scale ratio and actual submerged weights. The experiment was conducted for 1/125 scale model at a water tank in marine environmental and ecosystem laboratory, the university of Tokyo. We monitored the motion of the model under several conditions of regular waves and currents. The motions of the model were recorded by a video camera and were analyzed. The model was moved with respect to the surface waves and currents. We assessed the motions of the float based on the experiment. The experimental results will be used to explain local fishermen.
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