Applying Fishing-gear Simulation Software to Better Estimate Fished Space as Fishing Effort
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Modeling fishing-gear systems is essential to better understand the factors affecting their movement and for devising strategies to control movement. In this study, we present a generalized mathematical modeling methodology to analyze fishing gear and its various components. Fishing gear can be divided into a finite number of elements that are connected with flexible lines. We use an algorithm to develop a numerical method that calculates precisely the shape and movement of the gear. Fishing-gear mathematical models have been used to develop software tools that can design and simulate dynamic movement of novel fishing-gear systems. The tool allowed us to predict the shape and motion of the gear based on changes in operation and gear design parameters. Furthermore, the tool accurately calculated the swept volume of towed gear and the surrounding volume of purse-seine gear. We analyzed the fished volume for trawl and purse-seine gear and proposed a new definition of fishing effort, incorporating the concept of fished space. This method may be useful for quantitative fishery research, which requires a good understanding of the selectivity and efficiency of fishing gear used in surveys.
Abstract
Modeling fishing-gear systems is essential to better understand the factors affecting their movement and for devising strategies to control movement. In this study, we present a generalized mathematical modeling methodology to analyze fishing gear and its various components. Fishing gear can be divided into a finite number of elements that are connected with flexible lines. We use an algorithm to develop a numerical method that calculates precisely the shape and movement of the gear. Fishing-gear mathematical models have been used to develop software tools that can design and simulate dynamic movement of novel fishing-gear systems. The tool allowed us to predict the shape and motion of the gear based on changes in operation and gear design parameters. Furthermore, the tool accurately calculated the swept volume of towed gear and the surrounding volume of purse-seine gear. We analyzed the fished volume for trawl and purse-seine gear and proposed a new definition of fishing effort, incorporating the concept of fished space. This method may be useful for quantitative fishery research, which requires a good understanding of the selectivity and efficiency of fishing gear used in surveys.
참고문헌 (21)
- Bessonneau JS, "Study of the dynamics of submerged supple nets(application to trawls)", Ocean Eng, 25, pp.563~583 (1998)
- Food and Agriculture Organization of the United Nations, "Annex 2.Fishing Effort Measures by Gear Categories", pp.1~122 (1993), FAO
- Foster JJ, "The fish catching process relevant to trawls", Can Spec Publ Fish Aquat Sci, 58, pp.229~246 (1981)
- Fuwa S, "Fish herding model by ground ropes considering reaction of fish", Nippon Suisan Gakkaishi, 55, pp.1767~1771 (1989)
- Geradin M, "Mechanical Vibrations:Theory and Application to Structural Dynamycs", pp.367~411 (1997), Wiley
- Kim HY, "Verification of mathematical model on purse seine gear through sea trials and dynamic simulation", Cont Theor Fish Gears Relat Mar Syst, 4, pp.27~40 (2005)
- Lee CW, "Dynamic analysis and control technology in a fishing gear system", Fish Sci, 68, pp.1835~1840 (2002)
- Lee CW, "Dynamic simulation of a midwater trawl system’s behavior", Fish Sci, 68, pp.1865~1868 (2002)
- Lee CW, "Physical modeling for underwater flexible systems dynamic simulation", OCEAN ENGINEERING, 32, pp.331~347 (2005), PERGAMON-ELSEVIER SCIENCE LTD
- Lee JH, "Experimental investigation and numerical methods in analyzing the ocean current displacement phenomena of longlines", 박사, pp.2009
- Lee JH, "A method for improving the dynamic simulation efficiency of underwater flexible structures by implementing non-active points in modelling", ICES JOURNAL OF MARINE SCIENCE, 65(9), pp.1552~1558 (2008), OXFORD UNIV PRESS
- Mangel JC, "Small cetacean captures in Peruvian artisanal fisheries: high despite protective legislation", Biol Conserv, 143, pp.136~143 (2010)
- National Fisheries Research and Development Institute, "Korean Fishing Gear & Illustration", pp.47~124 (1970), NFRDI
- Somerton DA, "Do Pacific cod(Gadus macrocephalus)and walleye pollock(Theregra chalcogramma)lack a herding response to the doors,bridles,and mudclouds of survey trawls", ICES J Mar Sci, 61, pp.1186~1189 (2004)
- Takagi T, "Modeling of net for calculation method of dynamic fishing net shape", Fish Sci, 68, pp.1857~1860 (2002)
- Takagi T, "Validity and layout of"NaLA":a net configuration and loading analysis system", Fish Res, 66, pp.235~243 (2004)
- Tsukrov I, "Finite element modeling of net panels using a consistent net element", Ocean Eng, 30, pp.251~270 (2002)
- towing speed of a survey bottom trawl.In ICES Working Group on Fishing Technology and Fish Behaviour, "Relation swept volume", pp.2001, Vincent B
- Vincent B, "Modelling the dynamics of trawl doors in a trawl gear", Cont Theor Fish Gears Relat Mar Syst, 4, pp.71~79 (2005)
- Wakaba L, "On the added mass force at finite Reynolds and acceleration numbers", Theor Comput Fluid Dyn, 21, pp.147~153 (2007)
- Winger PD, "Simulating trawl herding in flatfish:the role of fish length in behaviour and swimming characteristics", ICES J Mar Sci, 61, pp.1179~1185 (2004)