Abstract
The biomass of bighand thornyhead Sebastolobus macrochir was increased by the high recruitment success of the 1999–2002 year classes off the Pacific coast of northern Honshu, Japan. In this study, the growth of bighand thornyhead was examined over a 9-year period from 1996 to 2004 in this area. The growth of the 1999 year class and the 2000–2002 year classes was reduced at 3 and 2 years old, respectively, while the 1999–2002 year classes were smaller than the 1993–1998 year classes. In 2-, 3- and 4-year-old fish, the relationship between abundance and mean standard length was expressed by negative linear regressions, while fish became smaller when abundance of the year class was larger. Mean bottom temperatures were stable at depths of 350–900 m; variations in water temperature were small in the main distribution area of bighand thornyhead. We discuss the factors affecting the growth of bighand thornyhead via changes in the demersal fish community and feeding habits.
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References
Amaoka K. Sebastolobus macrochir (Günther). In: Masuda H, Amaoka K, Araga C, Uyeno T, Yoshino T (eds). The Fishes of the Japanese Archipelago. Tokai University Press, Tokyo. 1984; 315–316.
Kitagawa D, Hashimoto J, Ueno Y, Ishida K, Iwakiri J. Distribution property of the kichiji rockfish (Scorpaenidae) in the deep sea region off Sanriku. JAMSTECTR Deep Sea Res. 1985; Special volume: 107–117 (in Japanese).
Hattori T, Narimatsu Y, Ito M, Ueda Y, Kitagawa D. Annual changes in population size and recruitment per spawning biomass of bighand thornyhead Sebastolobus macrochir in the western North Pacific Ocean off northern Japan. Nippon Suisan Gakkaishi 2006; 72: 374–381.
Hattori T. Age and growth of large-fin thornyhead off the Pacific side of Tohoku region, north Japan. Reports of the Groundfish Section. Comm. Japan Sci. Counc. Fish. Res. 1998; 1: 3–10 (in Japanese).
Iwate Prefectural Fisheries Experimental Station. Shinkai Gyojyou Kaihatsu Shiken Cyousa Houkokusyo. 3rd Report. Iwate Prefectural Fisheries Technology Center. Kamaishi. 1981 (in Japanese).
Savin AB. Distribution and migration of Laemonema longipes (Moridae) in the northwestern Pacific. Russ. J. Ichthyol. 1993; 33: 107–117.
Ohmura T, Hamatsu T, Yamauchi M, Takahashi T. Food habits of kichiji rockfish Sebastolobus macrochir in summer on the continental slope off the Pacific coast of Hokkaido, Japan. Nippon Suisan Gakkaishi 2005; 71: 584–593.
Mikawa M. Studies on the digestive system and feeding habit of bottom fishes in the north-eastern sea area along the Pacific coast of Japan. III. Atheresthes evermanni Jordan & Starks. Bull. Tohoku Natl. Fish. Res. Inst. 1995; 4: 136–146 (in Japanese).
Mikawa M. On the feeding habit of ‘Menuke’ rock fishes. J. Aomori-ken Biol. Soc. 1970; 12: 1–4 (in Japanese).
Fujita T. Bathymetric distribution of ophiuroids (Echinodermata) off Sendai Bay, northern Japan, with notes on the dief of the roughscale sole Clidoderma asperrimum (Pisces, Pleuronectidae). Mem. Natn. Sci. Mus., Tokyo 1996; 29: 209–222.
Honda H, Yamashita H, Nashida K, Sakaji H. Distribution patterns and feeding relationships of the demersal fishes inhabiting continental slope off Pacific coast of Japan. Reports of the Groundfish Section. Comm. Japan Sci. Counc. Fish. Res. 2000; 3: 23–33 (in Japanese).
Saeki M. Ecology and stock management of roughscale sole Clidoderma asperrimum (Temminck et Schlegel) caught in the waters off Sanriku and Joban. Miyagi Pref. Rep. Fish. Sci. 2001; 1: 93–102 (in Japanese).
Yamamura O. Demersal fish community in the waters affected by the Oyashio current. Community structure, trophic pathways and artificial impacts. Kaiyo Monthly 1998; 30: 339–347 (in Japanese).
Fujiwara K. The study of biological product structure of demersal fishes on the contimental slope. PhD Thesis. Tohoku University, Sendai. 2005 (in Japanese).
Ohmura T, Hamatsu T, Yamauchi M, Takahashi T. Spatial distribution patterns and nutritional status of kichiji rock-fish Sebastolobus macrochir in summer on the continental slope off the Pacific coast of Hokkaido, Japan. Nippon Suisan Gakkaishi 2006; 72: 430–439.
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Hattori, T., Narimatsu, Y., Ito, M. et al. Growth changes in bighand thornyhead Sebastolobus macrochir off the Pacific coast of northern Honshu, Japan. Fish Sci 73, 341–347 (2007). https://doi.org/10.1111/j.1444-2906.2007.01340.x
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DOI: https://doi.org/10.1111/j.1444-2906.2007.01340.x