Abstract
The ecological characteristics of four lizardfishes, Trachinocephalus myops, Saurida undosquamis, Saurida tumbil and Saurida elongata, were studied from specimens (910 T. myops, 454 S. undosquamis, 686 S. tumbil and 744 S. elongata) collected monthly in the southern Taiwan Straits from April 2005 to March 2006. The population dynamics of the four lizardfishes was also discussed by the comparison with the previous studies. All being composed of 7 a classes; the dominant group of T. myops and S. tumbil was 1–2 a, while S. undosquamis and S. elongate were 2–3 a. The total mortality coefficient Z and the fishing mortality F were at high as indicated by the exploitation ratio E(>0.5), and a large number of by-caught juvenile and young fishes showing that the stock of lizardfishes in this area was overexploited and the fishing gear was irrational. Compared with the previous studies, the maximum and mean fork length, body mass and age of the four lizardfishes declined gradually, the lizardfishes populations were younger in age and smaller in size. The asymptotic fork length L ∞ decreased while increasing growth coefficient k, and age at the inflexion point of mass t r was younger compared with the previous studies. The declining of older ones has moderated the feeding competition and the younger ones grew faster. The larger mortality parameters Z,M and F have revealed higher fishing pressure. The smaller change of the first mature fork length of female T. myops and the change from K selection pattern to r selection pattern of S. tumbil have indicated a more vulnerable fishery ecosystem in this area. The changes of ecological characteristics and population dynamics may be caused by over-exploitation of demersal fishes such as the lizardfishes, especially a large number of juvenile and young fishes by-catch by the current fishing gears and methods. Therefore, in addition to the traditional fishery management approach such as the minimum length-limit, ecosystem approach to fisheries management (EAF) should be taken to improve the practical marine ecosystem management, including increased fishing intensity of the non-economic species especially the feeding competitors of the lizardfishes and the conservation of the pelagic fishery population in the fisheries ecosystem, in order to restore the fishery population and achieve the sustainable use of the fishery stocks.
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References
Allen K P. 1953. A method for computing the optimum size-limit for a fishery. Nature, 172: 210
Beverton R J H, Holt S J. 1966. Manual of methods for fish stock assessment: Part 2. Tables of yield functions. FAO Fisheries Technical Paper, 38: 1–67
Chu Xiaolin. 2010. Ecosystem based management of fishery resources in the East China Sea. Resource Science, 32(4): 606–611
Cushing D H. 1968. Fisheries Biology: A study in Population Dynamics. Madison: University of Wisconsin Press
Du Jianguo, Lu Zhenbin, Chen Mingru, et al. 2008. Changes in ecological parameters of Parargyrops edita population in southern Taiwan Straits. Journal of Oceanography in Taiwan Straits, 27(2): 190–196
FAO. 2008. Fisheries management: 2. The ecosystem approach to fisheries.2.1 Best practices in ecosystem modeling for informing an ecosystem approach to fisheries. FAO Fisheries Technical Guidelines for Responsible Fisheries. No. 4, suppl 2, add 1. Rome: FAO
FAO. 2003. The ecosystem approach to fisheries. FAO Fisheries Technical Guidelines for Responsible Fisheries. No. 4, suppl 2. Rome: FAO
Gulland J A. 1971. The fish resources of the ocean. West Byfleet: Fishing News for FAO
Huang Zongguo. 2008. Marine Species and Their Distribution in China. Beijing: China Ocean Press
Huang Zirong, Chen Zuozhi. 2005. Stock variation of Saurida tumbil in southwestern continental of Nansha Islands. Transactions of Oceanology and Limnology, 3: 50–56
Huang Liangmin, Zhang Yazhi, Pan Jiajia, et al. 2008. Food web of fish in Xiamen eastern waters. Journal of Oceanography in Taiwan Straits, 27(1): 64–73
Jiao Yan, Chen Dagang, Ren Yiping. 1999. Fish species diversity of lizardfishes (Synodontidae) in the western Pacific. Journal of Ocean University of Qingdao, 29(4): 617–626
Lee Y C, Yen S Y, Liu H C. 1986. Age and growth of lizard fish, Saurida undosquamis, in the southern part of Taiwan Straits. Acta Oceanographica Taiwanica, 17: 105–118
Liu Jing. 2008. Subphylum Vertebrata. In: Liu Ruiyu. Checklist of Marine Biota of China Seas. Beijing: Science Press
Liu Jindian, Lu Huosheng, Zhu Lixin, et al. 2009. The difference of growth, mortality and group composition between female and male Saurida tumbil in the Beibu Gulf. Marine Fisheries, 31(3): 243–253
Lu Zhenbin, Dai Quanshui, Yan Youming. 1999. The studies on the ecology of twenty species fishes in Fujian coastal waters. Journal of Fujian Fisheries, 81: 20–27
Lu Zhenbin, Dai Quanshui, Zhu Jinfu, et al. 1999. Change in structure of the fisheries resources and ecology of the major population in Fujian offshore waters. Journal of Fujian Fisheries, 82: 1–7
Lu Jiwu, Luo Bingzheng, Lan Yonglun, et al. 1995. Studies on characteristics and successions of structure of fishery resources in the China sea. Studia Marina Sinica, 36: 195–211
Luo Bingzheng, Lu Jiwu, Lan Yonglun, et al. 1993. Population dynamics and life history patterns for main marine fishes in the coastal waters of China. Studia Marina Sinica, 34: 123–137
Pauly D. 1980. On the interrelationships between natural mortality, growth parameters and mean environmental temperature in 175 fish stocks. Journal du Conseil International Pour l’Exploration de la Mer, 39: 175–192
Richer W E. 1975. Computation and interpretation of biological statistics of fish populations. Ottawa: Department of the Environment, Fisheries and Marine Service
Robson D S, Chapman D G. 1961. Catch curves and mortality rates. Transactions of the American Fisheries Society, 90(2): 181–189
Shu Liming, Qiu Yongsong. 2004a. Biology analysis of Saurida tumbil in northern South China Sea. Journal of Fishery Sciences of China, 11(2): 154–158
Shu Liming, Qiu Yongsong. 2004b. Estimate for growth, mortality parameters and first capture specification suggestion of Saurida undosquamis (Richardson) in northern South China Sea. Journal of Zhanjiang Ocean University, 24(3): 29–35
Sparre P, Venema C S. 1992. Introduction to tropical fish stock assessment: Part I. Manual. FAO Fisheries Technical Paper, 306(1): 376
Tang Yi, Zou Weihong. 2009. Impacts of marine fishery on marine ecosystem and the management discussion. Marine Sciences, 33(3): 65–70
Tatara K. 1965. Fishery biology of lizardfish Saurida undosquamis, in the Inland Sea and its adjacent waters. Bulletin of the Naikai National Fisheries Research Institute, 22: 1–64
Von Bertalanffy L. 1938. A quantitative theory of organic growth (inquiries on growth laws. II). Human Biology, 10: 181–213
Xu Xucai, Zhang Qiyong. 1986. Age and growth of Trachinocephalus myops in the South Fujian and Taiwan Bank. Journal of Xiamen University: Natural Science. 25(6): 712–720
Xu Xucai, Zhang Qiyong. 1988. Age and growth of Saurida tumbil in the fishing ground of South Fujian and Taiwan Bank. Journal of Oceanography in Taiwan Straits, 7(3): 256–263
Yamada U, Ikemoto R. 1979. A quick identification of three species of lizardfish, Saurida, in the Japanese and adjacent waters. Bulletin of the Seikai National Fisheries Research, 52: 61–69
Yamada U, Tagawa M, Mako H. 1965. Alternations of the maturity affected by population density of the lizardfish, Saurida tumbil in the East China Sea. Bulletin of the Seikai National Fisheries Research, 33: 1–12
Yan Yunrong, Wang Tiantian, Hou Gang, et al. 2010. Feeding habits and monthly and ontogenetic diet shifts of the greater lizardfish, Saurida tumbil in the Beibu Gulf of the South China Sea. Journal of Fisheries of China, 34(7): 1089–1098
Yoneda M, Sakai T, Tokimura M, et al. 2002. Age and growth of the lizardfish Saurida sp.1 in the East China Sea using otolith ring marks. Fisheries Research, 55: 231–238
Zhan Bingyi. 2000. Fishery Resources Assessment. Beijing: China Agriculture Press
Zhang Zhuangli. 1997. Fishery biology of Trachinocephalus myops in Minnan-Taiwan Shoal Fishery Ground. Journal of Oceanography in Taiwan Straits, 16(2): 212–216
Zhang Qiyong, Lin Qiumian, Lin Youtong, et al. 1981. Food web of fishes in Minnan-Taiwanchientan Fishing Ground. Acta Oceanologica Sinica, 3(2): 275–290
Zhang Yilong, Mu Yongtong. 2006. The theoretical research about the ecosystem-based fishery management. Chinese Fisheries Economics, 3: 34–36
Zhang Qiyong, Xu Xucai. 1987. Scanning electron microscopic observations on surface structures of Saurida tumbil scales. Acta Zoologica Sinica, 33(2): 162–165
Zhang Qiyong, Yang Ganlin. 1986. Study of feeding habits of lizardfishes in South Fujian and Taiwan Bank Fishing Ground. Journal of Fisheries of China, 10(2): 213–222
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Foundation item: Marine Public Welfare Project of China under contract Nos 200805065, 200905019-6, 200705029 and 200805064; Chinese Offshore Investigation and Assessment under contract No. 908-02-04008; the Scientific Research Foundation of the Third Institute of Oceanography, SOA under contract No. 2011006; Marine Science Foundation for Young Scientist under contract No.2011143.
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Du, J., Lu, Z., Yang, S. et al. Studies on ecological characteristics variation and population dynamics of four lizardfishes in the southern Taiwan Straits. Acta Oceanol. Sin. 30, 72–81 (2011). https://doi.org/10.1007/s13131-011-0163-y
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DOI: https://doi.org/10.1007/s13131-011-0163-y