Abstract
Remarkably little is known about the life histories of the many tropical anguillid eels distributed across the Indo-Pacific region, and since the Danish expedition to study eels in the region in 1928 and 1929, research on these eels has only begun again in recent years. Sampling for anguillid leptocephali in the Indonesian Seas has been carried out recently to learn about the spawning ecology and larval distributions of tropical eels there. The leptocephali of Anguilla marmorata, Anguilla bicolor pacifica, Anguilla borneensis, Anguilla interioris, and Anguilla celebesensis were collected around Sulawesi Island both in May 2001 and October of 2002. The development of genetic identification techniques has enabled these leptocephali to be identified to species, and their distributions and sizes during different seasons indicated that there are differing life history patterns among sympatric species in the region. A. celebesensis was found to have been spawning in Tomini Bay of northeastern Sulawesi Island in March and April 2001, but apparently, no spawning had occurred in the late summer and fall of 2002. Studies on anguillid glass eels have suggested that tropical anguillids may spawn throughout much of year, but our research on leptocephali in Tomini Bay and data on the downstream migration of tropical anguillids in the major tributary to Tomini Bay indicate that A. celebesensis may have a distinct seasonal pattern of spawning possibly related to the regional monsoon cycles. This is the first evidence of seasonality of spawning in tropical anguillid eels whose life histories are only just beginning to be revealed.
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References
Aoyama J, Nishida M, Tsukamoto K (2001) Molecular phylogeny and evolution of the freshwater eels, genus Anguilla. Mol Phylogenet Evol 20:450–459
Aoyama J, Wouthuyzen S, Miller MJ, Inagaki T, Tsukamoto K (2003) Short-distance spawning migration of tropical freshwater eels. Biol Bull 204:104–108
Arai T, Limbong D, Otake T, Tsukamoto K (2001) Recruitment mechanisms of tropical eels, Anguilla spp. and implications for the evolution of oceanic migration in the genus Anguilla. Mar Ecol Prog Ser 216:253–264
Ege V (1939) A revision of the Genus Anguilla Shaw. Dana Rep 16:8–256
Ishikawa S, Tsukamoto K, Nishida M (2004) Genetic evidence for multiple populations of the giant mottled eel, Anguilla marmorata, in the Pacific and Indian Oceans. Ichthyol Res 51:343–353
Jespersen P (1942) Indopacific leptocephalids of the genus Anguilla: Systematic and biological studies. Dana Report No 22
Kuroki M, Aoyama J, Miller MJ, Wouthuyzen S, Arai T, Tsukamoto K (2006) Contrasting patterns of growth and migration of tropical anguillid leptocephali in the western Pacific and Indonesian Seas. Mar Ecol Progr Ser 309:233–246
Lee TW, Miller MJ, Hwang HB, Wouthuyzen S, Tsukamoto K (2008) Distribution and early life history of Kaupichthys leptocephali (family Chlopsidae) in the central Indonesian Seas. Mar Biol 153:285–295
Miller MJ, Mochioka N, Otake T, Tsukamoto K (2002) Evidence of a spawning area of Anguilla marmorata in the western North Pacific. Mar Biol 140:809–814
Miller MJ, Wouthuyzen S, Minagawa G, Aoyama J, Tsukamoto K (2006) Distribution and ecology of leptocephali of the congrid eel, Ariosoma scheelei, around Sulawesi Island, Indonesia. Mar Biol 148:1101–1111
Minagawa G, Miller MJ, Kimura Y, Watanabe S, Shinoda A, Aoyama J, Tsukamoto K (2007) Seasonal differences in catches of leptocephali in the East China Sea and Suruga Bay, Japan. Estuar Coast Shelf Sci 71:730–740
Minegishi Y, Aoyama J, Inoue JG, Miya M, Nishida M, Tsukmoto K (2005) Molecular phylogeny and evolution of the freshwater eels genus Anguilla based on the whole mitochondrial genome sequences. Mol Phylogenet Evol 34:134–146
Minegishi Y, Aoyama J, Tsukamoto K (2008) Multiple population structure of the giant mottled eel, Anguilla marmorata. Mol Ecol 17:3109–3122
Schmidt J (1922) The breeding places of the eel. Phil Trans R Soc Lond 211:179–208
Sugeha HY (2003) Life history of tropical eel Anguilla marmorata in the Indonesian waters. Doctoral dissertation, University of Tokyo, Tokyo
Sugeha HY, Arai T, Miller MJ, Limbong D, Tsukamoto K (2001) Inshore migration of the tropical eels, Anguilla spp., recruiting to the Poigar River estuary on Sulawesi Island. Mar Ecol Progr Ser 221:233–243
Tesch F-W (2003) The eel, 3rd edn. Blackwell, Oxford
Tsukamoto K (1992) Discovery of the spawning area for the Japanese eel. Nature 356:789–791
Tsukamoto K, Aoyama J, Miller MJ (2002) Migration, speciation and the evolution of diadromy in anguillid eels. Can J Fish Aquat Sci 59:1989–1998
Tsukamoto K, Otake T, Mochioka N, Lee TW, Fricke H, Inagaki T, Aoyama J, Ishikawa S, Kimura S, Miller MJ, Hasumoto H, Oya M, Suzuki Y (2003) Seamounts, new moon and eel spawning: the search for the spawning site of the Japanese eel. Envir Biol Fish 66:221–229
Watanabe S, Aoyama J, Tsukamoto K (2004) Reexamination of Ege’s (1939) use of taxonomic characters of the genus Anguilla. Bull Mar Sci 74:337–351
Wouthuyzen S, Miller MJ, Aoyama J, Minagawa G, Sugeha YH, Suharti S, Inagaki T, Tsukamoto K (2005) Biodiversity of anguilliform leptocephali in the central Indonesian Seas. Bull Mar Sci 77:209–224
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We thank the captain, crew, and technicians of the R/V Baruna Jaya VII for their help in making these cruises successful.
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Wouthuyzen, S., Aoyama, J., Sugeha, H.Y. et al. Seasonality of spawning by tropical anguillid eels around Sulawesi Island, Indonesia. Naturwissenschaften 96, 153–158 (2009). https://doi.org/10.1007/s00114-008-0457-x
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DOI: https://doi.org/10.1007/s00114-008-0457-x