Abstract
The complete larval development of Euphausia pacifica in the Yellow Sea is described and the stages are compared with larvae of E. nana. Euphausiid larvae examined in the present study were collected at 30 stations in the Yellow Sea in 1989. During the stages of Calyptopis III to Furcilia II, E. pacifica larvae are smaller than E. nana larvae but they are larger from Furcilia III onward. There are geographical variations in body size of Calyptopis III among the southern California waters, the eastern Japan waters, the Japan Sea, and the Yellow Sea; body size is smallest in the Yellow Sea and Japan Sea, while it is largest in southern California waters and intermediate in eastern Japan waters. Segmentation of antennal endopods was observed in the 5″6 to 5″1 furcilia forms in the Yellow Sea population, suggesting that this characteristic is not as reliable for identification of furcilia stages as the pleopods and terminal telson spines. Thus, we propose here that there are six furcilia stages of E. pacifica, instead of the seven previously reported by Boden (1950).
Similar content being viewed by others
Literature cited
Boden, B. P. (1950). The post-naupliar of the crustacean Euphausia pacifica. Trans. Am. microsc. Soc. 69: 373–386
Brinton, E. (1962). The distribution of Pacific euphausiids. Bull. Scripps Instn. Oceanogr. 8: 51–270
ai, B. (1986). The distribution of the Euphausiacea in the Huanghai Sea and East China Sea. Trans. Chin. Crustacean Soc. 1: 140–146 (in Chinese)
Einarsson, H. (1945). Euphausiacea. 1. North Atlantic species. ‘Dana’ Rep. 27: 1–185
Endo, Y., Komaki, Y. (1979). Larval stages of euphausiids with descriptions of those of Thysanoessa longipes Brandt. Bull. Japan Sea reg. Fish. Res. Lab. 30: 97–110
Fraser, F. C. (1936). On the development and distribution of the young stages of krill (Euphausia superba). ‘Discovery’ Rep. 14: 3–192
Hirota, Y., Nemoto, T., Marumo, R. (1984). Larval development of Euphausia nana (Crustacea: Euphausiacea) Mar. Biol. 81: 311–322
Hong, S. Y. (1969). The euphausiid crustaceans of Korea waters. In: Marr, J. C. (ed.) The Kuroshio. Univ. of Hawaii Press, Honolulu, p. 291–300
Knight, M. D. (1984). Variation in larval morphogenesis within the southern California Bight population of Euphausia pacifica from winter through summer, 1977–1978. Calif. coop. ocean. Fish. Invest. Rep. 25: 87–99
Komaki, Y. (1967). On the surface swarming of euphausiid crustaceans. Pacif. Sci. 21: 433–448
Le Roux, A. (1973). Observations sur le development larvaire de Nyctiphanes couchii (Crustacea: Euphausiacea) au laboratoire. Mar. Biol. 22: 159–166
Macdonald, R. (1927). Irregular development in the larval history of Meganyctiphanes norvegica. J. mar. biol. Ass. U.K. 14: 785–794
Marr, J. W. S. (1962). The natural history and geography of the Antarctic krill (Euphausia superba Dana). ‘Discovery’ Rep. 32: 33–464
Mauchline, J. (1959). The development of the Euphausiacea (Crustacea) especially that of Meganyctiphanes norvegica (M. Sars). Proc. zool. Soc. Lond. 132: 627–639
Mauchline, J., Fisher, L. R. (1969). The biology of euphausiids. Adv. mar. Biol. 7: 1–454
Pogodin, A. G. (1982). On certain developmental stages of Euphausia pacifica. Biol Morya, Vladivostok 2: 72–75 (in Russian)
Ross, R. M. (1981). Laboratory culture and development of Euphausia pacifica. Limnol. Oceanogr. 26: 235–246
Author information
Authors and Affiliations
Additional information
Communicated by T. Ikeda, Niigata
Rights and permissions
About this article
Cite this article
Suh, HL., Soh, H.Y. & Hong, S.Y. Larval development of the euphausiid Euphausia pacifica in the Yellow Sea. Marine Biology 115, 625–633 (1993). https://doi.org/10.1007/BF00349370
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00349370