DEVELOPMENT OF PORTABLE SYSTEM FOR MUSCLE TWITCH EXPERIMENT MEASUREMENT OF MUSCLE CONTRACTION TIME
Abstract
The muscle contraction time of fish can be the good index for swimming capability to estimate the maximum swimming speed, by defining the maximum tail beating performance. The muscle contraction time of jack mackerel, Thachurus japonicus (18.0 – 19.4 cm of fork length (FL), n = 15) was measured with newly developed portable systemand compared with the conventional setup with the electric stimulation pulse from generator and battery system.The muscle contraction profile was not different among each measurementeven with the different pulse pattern of electric stimulation between portable and conventional setup. The shortest recording of muscle contraction time with the portable system was 22.6 ± 2.1 ms, not different to the conventional system as 24.3 ± 1.9 ms with the generator and 24.2 ± 2.0 mswith the battery system. Time duration and the pulse pattern of the electric stimulus do not affect the muscle contraction time. The portable system can be used to measure the muscle contraction time of fish for the field experiment and onboard the fishing boat without alternating current (AC) electricity supply.
Keywords: Muscle contraction time, jack mackerel, portable system, electric stimulus, muscle twitch experiment.
References
Arimoto T, Xu G, Matsushita Y (1993) Muscle contraction time of captured walleye pollock Theragra chalcogramma. Nippon Suisan Gakkashi 57:1225–1228
Amornpiyakrit T (2003). Study on the physilological and behavioral aspects in the capture process of trawl gear. PhD thesis. Tokyo University of Marine Science and Technology.
Brill RW, Dizon EA (1979) Effect of temperature on isotonic twitch of white muscle and predicted maximum swimming speed of skipjack tuna, Katsuwonus pelamis. Env Biol Fish 4:199–205
Johnston IA (1980) Contractile properties of fish fast muscle fibres. Mar Biol Lett 1: 323–328
He P (1986) Swimming performance of three species of marine fish and some aspects of swimming in fishing gears. PhD thesis. The University of Aberdeen
Özbilgin H, Wardle CS (2002) Effect of seasonal temperature changes on the escape behavior of haddock Melanogrammus aeglefinus, from the codend. Fish Res 58:323–331
Özbilgin H, Pehlivan M, Basaran F (2011) Maximum swimming speed predictions for Mullus berbatus(Linnaeus, 1758) and Diplodus annularis (Linnaeus, 1758). Turk J Zool 35 (1): 79-85
Riyanto M, Yanase K, Arimoto T (2013). Temperature and fatigue effect on the maximum swimming speed of jack mackerel Trachurus japonicus. Fish Sci DOI 10.1007/s12562-013-0686-6.
Wardle CS (1975) Limit of fish swimming speed. Nature 255:725–727
Wardle CS, Videler JJ, Arimoto T, Franco JM, He P (1989). The muscle twitch and maximum swimming speed of giant bluefin tuna Thunnus thynnus L. J Fish Biol 35:129–137
Xu G (1989) Study on the fish swimming movement and its application in fishing by trawl. PhD thesis. Tokyo University of Marine Science and Technology.
Yanase K, Eayrs S, Arimoto T (2007) Influence of water temperature and fish length on the maximum swimming speed of sand flathead, Platycephalus bassensis: implications for trawl selectivity. Fish Res 84:180–188