Relevant bibliographies by topics / Gear selectivity

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Gear selectivity'

Author: Grafiati
Published: 4 June 2021
Last updated: 26 July 2025

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Journal articles on the topic "Gear selectivity"

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Mandal, Basudev. "A Study on the Selectivity of Different Fishing Gear." Indian Journal of Pure & Applied Biosciences 12, no. 2 (2024): 8–19. http://dx.doi.org/10.18782/2582-2845.9072.

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The selectivity of fishing gears plays a pivotal role in shaping the dynamics of aquatic ecosystems and fisheries sustainability. Through a comprehensive examination of trawl nets, gill nets, and longlines, this paper delves into the factors influencing selectivity, including gear design, selectivity criteria, selectivity terminologies, selection curves, and impacts. Drawing upon scientific research, empirical evidence, and case studies from around the world, this paper highlights the effectiveness of different selectivity measures in balancing the extraction of target species with the conserv
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Li, Yan, and Tyler Wagner. "Does incorporating gear selectivity during macroscale investigations of fish growth reduce size-selective sampling bias in parameter estimates?" Canadian Journal of Fisheries and Aquatic Sciences 76, no. 11 (2019): 2089–101. http://dx.doi.org/10.1139/cjfas-2018-0355.

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Understanding of fish growth, the spatial variability in individual growth, and the potential drivers of such variability is a fundamental component of many ecological investigations. However, sampling gears are always size-selective, and this selectivity can result in biased parameter estimates that can lead to, for example, biased stock assessments that use growth estimates. Using seven flathead catfish (Pylodictis olivaris) populations from across the USA as an example, we investigated to what degree the incorporation of gear selectivity in growth models reduces size-selective bias in the e
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Baihaqi, Faqih, and Shafira Bilqis Annida. "Selectivity of the Traps and Push Net Fishing Gear in the Glass Eels (Anguilla spp.) Capture Fishery in the Cikaso River Waters, Sukabumi, Indonesia." International Journal of Contemporary Sciences (IJCS) 2, no. 1 (2024): 57–68. https://doi.org/10.55927/ijcs.v2i1.12292.

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Selectivity is a standard of the level of friendliness of a fishing gear that is reviewed based on the diversity of catches obtained. Nowadays, fishing gear construction and techniques are developed to obtain selective fishing methods. This study compared the selectivity of traps and push nets in glass eel fishing in the Cikaso River, Indonesia. The study was conducted from December 2020 to April 2021. The catch diversity index and relative abundance were used to analyze the selectivity of catch diversity in both fishing gears. Comparative analysis shows that push nets have slightly better sel
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Lee, Sung Il, Eun-Gyu Kim, Jae-Hyeong Yang, and Chang-Ik Zhang. "Stock assessment and management implications of sailfin sandfish (Arctoscopus japonicus) caught by multiple fishing gears with different selectivity in Korean waters." PeerJ 13 (July 7, 2025): e19602. https://doi.org/10.7717/peerj.19602.

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The yield per recruit (YPR) model developed by Berverton & Holt in 1957 is widely used to determine the optimal age at first capture (tc) and optimal fishing intensity (F0.1) for the sustainable use of fish stocks. The YPR model is mainly applied to fishing gears, including trawlers and Danish seines, as individual gear types. In practice, fishery resources are predominantly harvested using multiple fishing gears rather than using a single fishing gear, with selectivity differing among the various gears employed. Therefore, management reference points, such as F0.1 or F40%, should be deriv
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Tupamahu, Agustinus, Haruna Haruna, Barbara G. Hutubessy, Stany R. Siahainenia, Albert Ch Nanlohy, and Kedswin Hehanusa. "Supperior Fishing Gear for Coral Reef Fishes in Western Seram Regency." Agrikan: Jurnal Agribisnis Perikanan 14, no. 1 (2021): 54–64. http://dx.doi.org/10.29239/j.agrikan.14.1.54-64.

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Various fishing gears that are operated in the coral reef waters of Western Seram Regency have their own selectivity, capture various species of fish, and have an impact on the damage to coral reef ecosystems. This study aims to determine the leading reef fishing gears in Western Seram District. The survey method is through observations and interviews with fishermen who conduct fishing activities of coral species. Respondents are determined by propulsive sampling, the selection of superior fishing gear is done by the scoring method. The results showed that the fishing gear classified into the
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MacLennan, David N. "Fishing gear selectivity: an overview." Fisheries Research 13, no. 3 (1992): 201–4. http://dx.doi.org/10.1016/0165-7836(92)90076-6.

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Millar, Russell B. "Reliability of size-selectivity estimates from paired-trawl and covered-codend experiments." ICES Journal of Marine Science 67, no. 3 (2009): 530–36. http://dx.doi.org/10.1093/icesjms/fsp266.

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Abstract Millar, R. B. 2010. Reliability of size-selectivity estimates from paired-trawl and covered-codend experiments. – ICES Journal of Marine Science, 67: 530–536. To determine the size selectivity of a trawl codend from sea trials, the researcher must choose between using paired (experimental and control) and covered-codend gears. The paired-gear method has the advantage that the experimental codend can be deployed without modification, but has the disadvantage of a more complex statistical analysis. It has previously been claimed that this analysis is inherently biased regardless of samp
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Branch, Trevor A. "Reply to the comment by Francis on “Differences in predicted catch composition between two widely used catch equation formulations”Appears in Can. J. Fish. Aquat. Sci. 66: 126–132." Canadian Journal of Fisheries and Aquatic Sciences 67, no. 4 (2010): 766–68. http://dx.doi.org/10.1139/f10-024.

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Francis (2010. Can. J. Fish. Aquat. Sci. 67: 763–765) writes a thoughtful response detailing concerns with my suggestion that the continuous (Baranov) catch formulation is preferable to the discrete catch formulation when fishing mortality is high (T.A. Branch. 2009. Can. J. Fish. Aquat. Sci. 66: 126–132). He suggests the discrete formulation allows for multiple gear encounters and that formulation choice should depend on which formulation better fits the data. Here I first distinguish between gear selectivity and availability and then show that our two views are complementary: the original as
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Browne, D., C. Minto, R. Cosgrove, et al. "A general catch comparison method for multi-gear trials: application to a quad-rig trawling fishery for Nephrops." ICES Journal of Marine Science 74, no. 5 (2017): 1458–68. http://dx.doi.org/10.1093/icesjms/fsw236.

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Expeditious uptake of quad-rig trawling in the economically important Irish fishery for Nephrops norvegicus outpaced technical understanding of this newly introduced gear. The main driver for its introduction is increased catch rates of Nephrops. Higher Nephrops discard rates associated with quad-rig trawling are likely to be problematic under the landing obligation unless size selectivity can be improved. Catch comparison methods are suitable for assessing the performance of fishing gear modifications to reduce discards. Utilizing a quad-rig potentially increases the number of gears that can
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Cuende, Elsa, Manu Sistiaga, Bent Herrmann, and Luis Arregi. "Optimizing size selectivity and catch patterns for hake (Merluccius merluccius) and blue whiting (Micromesistius poutassou) by combining square mesh panel and codend designs." PLOS ONE 17, no. 1 (2022): e0262602. http://dx.doi.org/10.1371/journal.pone.0262602.

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Gear modifications in fisheries are usually implemented to obtain catch patterns that meet management objectives. In the Basque bottom trawl fishery, gear regulations include the use of a square mesh panel (SMP) placed at the top panel of the extension piece of the trawl to supplement diamond mesh codend selectivity. However, the catch patterns obtained with this combination have raised concern among scientists and authorities. This study combines new data on different SMP and codend designs with existing data from the literature to produce new results that are applied to predict the size sele
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Dissertations / Theses on the topic "Gear selectivity"

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Levy, Amanda. "Use of Simulation Analyses to Investigate Yellowfin Tuna (Thunnus albacares) Growth Models in the Atlantic Ocean Incorporating Gear Selectivity." NSUWorks, 2012. http://nsuworks.nova.edu/occ_stuetd/177.

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The growth rate of a fish is a fundamental function used in stock assessments to estimate the population size and the fishery pressure affecting the species. There has been recent debate within the stock assessment community regarding which type of growth model best represents the true growth rate of yellowfin tuna (Thunnus albacares), in the Atlantic Ocean; specifically, should assessments use a traditional von Bertalanffy growth curve or a so-called “two-stanza” growth curve, which combines one growth rate for smaller individual tuna and another for larger sizes. Using a simulated population
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Grannis, Betsy M. "Impacts of Mobile Fishing Gear and a Buried Fiber-Optic Cable on Soft-Sediment Benthic Community Structure." Fogler Library, University of Maine, 2005. http://www.library.umaine.edu/theses/pdf/GrannisBM2005.pdf.

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Amjoun, Benyounes. "Estimation of gear selectivity, growth and mortality parameters, and alternative harvesting strategies : a multiple gillnet fishery for Corvina reina (Cynoscion albus) population /." Thesis, Connect to this title online; UW restricted, 1996. http://hdl.handle.net/1773/6380.

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Nenadovic, Mateja. "The Effects of Bottom-Tending Mobile Fishing Gear and Fiber-Optic Cable Burial on Soft-Sediment Benthic Community Structure." Fogler Library, University of Maine, 2009. http://www.library.umaine.edu/theses/pdf/NenadovicM2009a.pdf.

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Teixeira, SebastiÃo Ribeiro DÂAlva. "Seletividade da rede-de-espera utilizada na captura da sardinha-bandeira, Opisthonema oglinum (Lesueur, 1818)." Universidade Federal do CearÃ, 2015. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=13789.

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CoordenaÃÃo de AperfeÃoamento de Pessoal de NÃvel Superior<br>A sardinha-bandeira, Opisthonema oglinum, pertence à famÃlia Clupeidae da ordem Clupeiformes sendo uma das cinco espÃcies do gÃnero Opisthonema. No Estado do Cearà sua captura se estende ao longo de toda a costa, durante todo o ano, com as melhores pescarias ocorrendo entre maio e dezembro. O presente trabalho teve como objetivo determinar a estrutura da populaÃÃo, a relaÃÃo peso/comprimento da sardinha-bandeira e a seletividade das redes-de-espera utilizadas na sua captura na Praia da Caponga, municÃpio de Cascavel, CearÃ, Brasil.
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ŘÍHA, Milan. "Dynamics of fish spatial distribution in reservoirs." Doctoral thesis, 2012. http://www.nusl.cz/ntk/nusl-124438.

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This dissertation thesis focuses on several aspects of fish ecology in reservoirs and the methodology of their sampling. It is divided to three parts. The first part focuses on the dynamics of fish distribution throughout the seasons and between day and night. The second part deals with the efficiency and the selectivity of the beach seine net, trawl and purse seine net. The third part describes the long-term development of fish populations in the Římov Reservoir.
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Books on the topic "Gear selectivity"

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Foster, J. J. Measurement of fishing gear selectivity: Methodology manual. The Department, 1995.

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Inc, Aquaprojects. Measurement of fishing gear selectivity: Methodology manual. Minister of Public Works and Government Services Canada, 1995.

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Canada. Dept. of Fisheries and Oceans. and Aquaprojects Inc, eds. Methods of measuring fishing gear selectivity - methodology manual and gear specific protocols. Fisheries and Oceans Canada, 1999.

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A, Wileman D., and International Council for the Exploration of the Sea., eds. Manual of methods of measuring the selectivity of towed fishing gears. International Council for the Exploration of the Sea, 1996.

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Widodo. Katalog alat penangkapan ikan Indonesia =: Indonesian catalogue of fishing gears. Balai Besar Pengembangan Penangkapan Ikan, Direktorat Jenderal Perikanan Tangkap, Departemen Kelautan dan Perikanan, 2009.

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Workshop on Standardization of Selectivity Methods Applied to Trawling in the Mediterranean Sea (2005 Sète, France). Report of the Workshop on Standardization of Selectivity Methods Applied to Trawling in the Mediterranean Sea, Sète, France, 9-11 February 2005 =: Rapport de L'Atelier sur la Standardization des Méthodes de Sélectivité Appliquées au Chalutage en Méditerranée, Sète, France, 9-11 févier 2005. Food and Agriculture Organization of the United Nations, 2007.

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Pearson, Donald E. The effectiveness of California's commercial rockfish port sampling program. U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service, Southwest Fisheries Science Center, 1995.

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Hanna, Susan. Economic considerations of mesh size regulation in the west coast groundfish fishery. Resource Ecology and Fishery Management Division, Northwest and Alaska Fisheries Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, 1988.

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Suuronen, Petri. Mortality of fish escaping trawl gears. Food and Agriculture Organization of the United Nations, 2005.

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Hovgård, Holger. Manual on estimation of selectivity for gillnet and longline gears in abundance surveys. FAO, 2000.

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Book chapters on the topic "Gear selectivity"

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O’Neill, Finbarr G., Jordan Feekings, Robert J. Fryer, Laurence Fauconnet, and Pedro Afonso. "Discard Avoidance by Improving Fishing Gear Selectivity: Helping the Fishing Industry Help Itself." In The European Landing Obligation. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-03308-8_14.

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Paschen, Mathias, Hans Joachim Winkel, and Henning Knuths. "Fluid-Structure Interactions in Pelagic Trawls and Probable Consequences for the Selectivity of the Fishing Gear." In Advances in Science and Technology. Trans Tech Publications Ltd., 2008. http://dx.doi.org/10.4028/3-908158-15-x.247.

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Scanu, Martina, Luca Bolognini, and Fabio Grati. "A Review of Studies on Set Gear Selectivity in the Adriatic Sea." In The Handbook of Environmental Chemistry. Springer Berlin Heidelberg, 2020. http://dx.doi.org/10.1007/698_2020_670.

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Pengilly, D., V. Vanek, and MSM Siddeek. "Fishing Gear Selectivity in the Rationalized Aleutian Islands Golden King Crab Fishery." In Fisheries Bycatch: Global Issues and Creative Solutions. Alaska Sea Grant, University of Alaska Fairbanks, 2015. http://dx.doi.org/10.4027/fbgics.2015.14.

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Quinn II, Terrance J., and Richard B. Deriso. "Size-structured Models and Assessment Methods." In Quantitative Fish Dynamics. Oxford University PressNew York, NY, 1999. http://dx.doi.org/10.1093/oso/9780195076318.003.0009.

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Abstract Recently, much interest has developed in constructing population models based on length, weight, or size of individuals in the population. The reasons for this interest include the difficulty in obtaining accurate ages for a variety of fish species, the ready availability of length and size data, the desire to more accurately reflect the sampling distributions of the data collected, and the goal of integrating various sources of data collected from a fish population. Frequently, length data are the primary information available. Furthermore, population parameters such as mortality, ge
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"Impact of management scenarios and fisheries gear selectivity on the potential economic gains from a fish stock." In Game Theory and Fisheries. Routledge, 2013. http://dx.doi.org/10.4324/9780203083765-21.

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"Biology, Management, and Protection of North American Sturgeon." In Biology, Management, and Protection of North American Sturgeon, edited by Stuart A. Welsh, Sheila M. Eyler, Michael F. Mangold, and Albert J. Spells. American Fisheries Society, 2002. http://dx.doi.org/10.47886/9781888569360.ch15.

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&lt;em&gt;Abstract.&lt;/em&gt;—Little information exists on temporal and spatial distributions of wild and hatch-ery-reared Atlantic sturgeon &lt;em&gt;Acipenser oxyrinchus oxyrinchus&lt;/em&gt; in the Chesapeake Bay. Approximately 3,300 hatchery-reared Atlantic sturgeon comprised of two size groups were released into the Nanticoke River, a tributary of the Chesapeake Bay, on 8 July 1996. During January 1996–May 2000, 1099 Atlantic sturgeon were captured incidentally (i.e., bycatch) by commercial watermen in the Chesapeake Bay, including 420 hatchery-reared individuals. Wild and hatchery-reare
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Sadikaj, Rigerta Ali. "The Assessment of the Exploitable Fish Reserves (Stock Assessment)." In Advances in Environmental Engineering and Green Technologies. IGI Global, 2015. http://dx.doi.org/10.4018/978-1-4666-8333-4.ch008.

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This chapter explains some theoretical and technical aspects of stock assessments that may be familiar to those directly involved in fisheries science and analysis of fish populations. The information about stock and recruitment concepts, assessment of population growth, natural and fishing moralities, selectivity of fishing gears and relationship between catch and selectivity. It is written particularly for persons involved in scientific activity, for students and for stakeholders who have never been exposed to formal fisheries science training, but are interested in better understanding comp
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Taber, Douglass F. "Synthesis of C-N Natural Products: (-)-α-Kainic Acid (Helmchen), (+)-Tylophorine (Opatz), (-)-Lycoperine A (Rychnovsky), Fluvirucidine A2 (Suh), Complanidine A (Sarpong)." In Organic Synthesis. Oxford University Press, 2013. http://dx.doi.org/10.1093/oso/9780199965724.003.0058.

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Günter Helmchen of the Ruprecht-Karls-Universität Heidelberg set (Organic Lett. 2010, 12, 1108) the absolute configuration of 3 by Ir*-mediated coupling of 1 with 2. Diastereoselective Pauson-Khand cyclization then led to (-)-α-kainic acid 5. Till Opatz, now at the Johannes Gutenberg-Universität Mainz, showed (Organic Lett. 2010, 12, 2140) that the product from the Dibal reduction of 6 could be condensed with the amine 7 without epimerization. Kim cyclization then directly delivered the pentacyclic alkaloid (+)-tylophorine 9. The interesting dimeric alkaloid lycoperine A 13 was recently isolat
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Conference papers on the topic "Gear selectivity"

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Kenney, J., V. Nulk, and A. Blott. "Scallop Gear Selectivity Studies." In OCEANS '87. IEEE, 1987. http://dx.doi.org/10.1109/oceans.1987.1160753.

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Paschen, Mathias, Gerd Niedzwiedz, and Hans-Joachim Winkel. "Fluid Structure Interactions at Towed Fishing Gears." In ASME 2004 23rd International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2004. http://dx.doi.org/10.1115/omae2004-51525.

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From the point of view of mechanics, trawls are considered as extremely flexible and partly extensible rope and net structures which are exposed to flow. Form and loads of such gears mainly depend on the corresponding velocity of inflow and also on the so-called rigging elements that are required for the horizontal and vertical spreading of the fishing gear. At the same time the fishing gear is acting on the surrounding fluid. These reactions can on the one hand lead to unsteady states in the fishing gear. On the other hand changes of pressure and velocity can be detected by the fish and can p
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Valeiras, Julio, Nair Vilas, Esther Abad, et al. "Behaviour of Fish in Bottom-Trawling Gear to Assess the Effectiveness of Cetacean Excluder Devices and Codend Selectivity Modifications." In SIBIC 2022. MDPI, 2022. http://dx.doi.org/10.3390/blsf2022013079.

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Dahm, Erdmann. "Innovations in Fishing Gear Design Aiming at the Sustainable Use of Commercial Fish Stocks." In 25th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2006. http://dx.doi.org/10.1115/omae2006-92087.

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The present status of some of the fish stocks in North Sea and Baltic shows them to be outside safe biological limits. Reasons for this lie partly in hydrographic and ecological changes not in favour for a constant supply of fresh recruits to the fishery every year. On the other hand, fishery has its share in the observed downward trend by growth overfishing and reducing the size and number of possible spawners. The only mean available for the fishery management to restore a fish stock composed of several year classes is to apply technical measures as e.g.closures in space and time or fishing
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Sarkar, Pritu Parna, Ridma Tabassum, Ahmed Hasnain Jalal, Ali Ashraf, and Nazmul Islam. "Selective and Sensitive Determination of Dopamine in a Novel Gear-Shaped Screen-Printed Electrode Modified With G-PANI Ink." In ASME 2024 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2024. https://doi.org/10.1115/imece2024-145015.

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Abstract Now-a-days electrochemical sensors are used to detect various analytes in bodily fluids. The electrodes of these sensors can be modified with various designs and particles. In our paper, we developed a novel gear-shaped electrode. The cyclic voltammetry (CV) analysis shows that the novel design has improved active surface area by 57% than without gear design. This novel design was fabricated as a screen-printed electrode using laser processing. Moreover, the novel shaped sensor was modified with polyaniline (G-PANI) ink to enhance the performance of the sensor. The physiochemical prop
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Knobloch, Aaron J., Matt Wasilik, Carlos Fernandez-Pello, and Albert P. Pisano. "Micro, Internal-Combustion Engine Fabrication With 900 µm Deep Features Via DRIE." In ASME 2003 International Mechanical Engineering Congress and Exposition. ASMEDC, 2003. http://dx.doi.org/10.1115/imece2003-42558.

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New results are presented for the development of a micro, internal-combustion engine fabricated in a process that achieves 900 μm deep features via deep reactive ion etching (DRIE). A single-sided 900 μm deep etch process with high mask selectivity is used to generate straight sidewall structures with low sidewall roughness. This research is part of an effort to create a portable, MEMS-based Rotary Engine Power System (MEMS REPS) capable of producing power on the order of milliwatts with an energy density better than that of a conventional battery. The MEMS REPS is based on the planar geometry
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Ranavare, Vinod, Sudarshan Patale, and Kiran Mane. "Button Operated Electromagnetic Gear Shifting System in Two Wheeler." In National Conference on Relevance of Engineering and Science for Environment and Society. AIJR Publisher, 2021. http://dx.doi.org/10.21467/proceedings.118.25.

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There are disclosed an electromagnetic Type Gear Change System control apparatus for an automobile and a method of controlling such apparatus. A rotational output of an internal combustion engine is connected to drive wheels of the automobile and a load device. When a gear shifting-up of a electromagnetic type transmission is to be effected, the load applied by the load device is increased, or the load is connected to an output rotation shaft of the engine via a selectively-connecting device, thereby reducing the rotational speed of the output rotation shaft of the engine to a required level.
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Itoh, Masahiko, Shinji Kasei, and Shigeo Fukada. "Self-Compensating Control for Suppression of Rotational Speed Variation Excited by Reduction Gear Mechanism." In ASME 1997 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/detc97/vib-3801.

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Abstract In servo-controlled mechanical systems, such as industrial machines and robots, several kinds of gear reducers are proposed and employed selectively. It is known that these gear reducers generate speed and torque variations due to their element error, alignment error, etc., which result in excitations of undesirable vibrations in driven machines. This paper presents a control technique for suppressing such vibration source in the gear reducers themselves, especially relating to excitations in a lower-frequency range. This technique is based on a self-compensating control applied to th
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Reardon, Arthur C., Andrew Freborg, Z. Charlie Li, and B. Lynn Ferguson. "Understanding Process Sensitivities in Press Quenching— An Integrated Approach." In HT 2015. ASM International, 2015. http://dx.doi.org/10.31399/asm.cp.ht2015p0233.

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Abstract Press quenching is a specialized quenching technique used in heat treating operations to minimize the distortion of complex components such as spiral bevel gears and high quality bearing races. The quenching machine is designed to control the geometrical characteristics of components such as out-of-round, flatness, and (if the tooling is designed to accommodate it) taper. The achievement of final dimensional tolerances is accomplished through a trial and error process where the incoming machined sizes of the components are adjusted based upon measurement data taken from the initial se
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