The introduction to Japan of the Titan barnacle, Megabalanus coccopoma (Darwin, 1854) (Cirripedia: Balanomorpha) and the role of shipping in its translocation.
The Titan Acorn barnacle, Megabalanus coccopoma, a native of the tropical eastern Pacific, has become established in the western Atlantic (Brazil and the northern Gulf of Mexico to the Carolinas), northwestern Europe and the western Indian Ocean (Mauritius), and therefore its dispersal capabilities are well known. This study reports its introduction to Japan and confirms its occurrence in Australia. In an attempt to determine the source of this introduction, phylogeographic techniques, involving cytochrome c oxidase I sequences of various widely separate populations of M. rosa and M. volcano, were utilized. No significant genetic differentiation or haplotype patterns between widely separated populations of each of the three species were found. Lack of such differentiation indicates recent geographical isolation and thus negates a null hypothesis predicting that the occurrence of one of more of these species in Australia was natural.
Yamaguchi
Toshiyuki
T
Department of Earth Sciences, Graduate School of Science, Chiba University, Chiba, Japan. tyamaguc@earth.s.chiba-u.ac.jp
Prabowo
Romanus Edy
RE
Ohshiro
Yuu
Y
Shimono
Takaki
T
Jones
Diana
D
Kawai
Hiroshi
H
Otani
Michio
M
Oshino
Akio
A
Inagawa
Shou
S
Akaya
Tomoyoshi
T
Tamura
Itsuro
I
D000818:Animals; D001315:Australia; D018441:Biofilms / Q000254:growth & development; D004272:DNA, Mitochondrial / Q000235:genetics; D003576:Electron Transport Complex IV / Q000235:genetics; D005828:Genetics, Population; D006239:Haplotypes; D007564:Japan; D008928:Mitochondria / Q000201:enzymology; D010802:Phylogeny; D017422:Sequence Analysis, DNA; D012767:Ships; D013045:Species Specificity; D001468:Thoracica / Q000145:classification* / Q000235:genetics / Q000502:physiology*
D004272:DNA, Mitochondrial; D003576:Electron Transport Complex IV