Abstract
The reproductive behavior of two wrasses,Pseudolabrus eoethinus (Richardson, 1846) andP. sieboldi Mabuchi & Nakabo, 1997, was studied on a rocky coast in Shikoku, Japan, where the two species occur sympatrically. In the study area, individual males of each species established mating territories within which pair spawnings occurred. Pair spawnings were observed only between conspecifics, indicating that the two coexisting species were reproductively isolated. Both species usually spawned during the afternoon in early winter and had similar reproductive behavior. Although habitat, temporal and behavioral isolation mechanisms were not apparent, reproductive isolation seemed to occur via premating isolation through visual recognition of conspecific mates because the two species differed in body size and coloration. On one occasion a maleP. sieboldi was observed to perform streaking behavior to join a spawning pair ofP. eoethinus. Thus, postmating isolation between the two species is also discussed.
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Literature Cited
Araga, C. 1984.Pseudolabrus japonicus. Page 206in H. Masuda, K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, eds. The fishes of the Japanese Archipelago. Tokai Univ. Press, Tokyo.
Houttuyn, M. 1782. Beschrijving van eenige Japansche visschen, en andere zee-schepzelen. Verh. Holl. Maatsch. Wet. Haarlem, 20: 311–350.
Mabuchi, K. and T. Nakabo. 1997. Revision of the genusPseudolabrus (Labridae) from the East Asian waters. Ichthyol. Res., 44 (4): 321–334.
Masuda, H. and Y. Kobayashi. 1994 Grand atlas of fish life modes. Tokai University Press, Tokyo. 465 pp.
Mayr, E. 1963. Animal species and evolution. Harvard Univ. Press, Cambridge. 797 pp.
Nakazono, A. 1979. Studies on the sex reversal and spawning behavior of five species of Japanese labrid fishes. Rep. Fish. Res. Lab. Kyushu Univ., 4: 1–64. (In Japanese with English summary).
Ojima, Y., 1983, Fish cytogenetics. Suikosha, Tokyo. 453 pp. (In Japanese.)
Richardson, J. 1846. Report on the ichthyology of the seas of China and Japan. Rep. Brit. Assoc. Adv. Sci. 15th meet., 1845: 187–320.
Riley, H. P. 1952. Ecological barriers. Am. Nat., 86: 23–32.
Ueno, K. 1995. The pattern of NORs in the chromosomes of some labrid fishes from Japan. Abst. Metg. Japan Soc. Fish. Sci. October, 1995: 56 (In Japanese).
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Matsumoto, K., Mabuchi, K., Kohda, M. et al. Spawning behavior and reproductive isolation of two species ofPseudolabrus . Ichthyological Research 44, 379–384 (1997). https://doi.org/10.1007/BF02671989
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DOI: https://doi.org/10.1007/BF02671989