title: Life-cycle of Choniomyzon inflatus Wakabayashi, Otake, Tanaka & Nagasawa, 2013 (Copepoda: Siphonostomatoida: Nicothoidae) with the morphological descriptions of the nauplius, copepodid and adult male.
abstract: Choniomyzon inflatus Wakabayashi, Otake, Tanaka & Nagasawa, 2013 (Copepoda: Siphonostomatoida: Nicothoidae), an associate of the scyllarid lobster Ibacus novemdentatus Gibbes, was found to pass through at least four developmental stages: nauplius, copepodid I (CI), copepodid II or later (CII+) and adult. Free-living nauplii were observed hatching from the ovisacs of adult females. CI was found on the body surface of both female and male hosts, whereas CII+ and adult were obtained from the female host's egg masses. The life-cycle of this copepod is presumed to be as follows: (i) nauplius develops into CI in the water column; (ii) infective CI settles on body surface of host; (iii) CI moults into the following stage, changing its microhabitat from host's body surface to egg masses; (iv) CII+ develops on egg masses of host until adult stage; and (v) adult female and male mate on the host's egg masses.
authors.affiliation: Plankton Laboratory, Graduate School of Marine Science and Technology, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato, Tokyo, 108-8477, Japan.|Fisheries Research Division, Oita Prefectural Agriculture, Forestry and Fisheries Research Center, 194-6 KamiuraOazaTsuiura, Saiki, Oita, 879-2602, Japan.
authors.forename: Shusaku
authors.initials: S
authors.lastname: Otake
authors.affiliation: Plankton Laboratory, Graduate School of Marine Science and Technology, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato, Tokyo, 108-8477, Japan. kaoriw@hiroshima-u.ac.jp.|Laboratory of Aquaculture, Graduate School of Biosphere Science, Hiroshima University, 1-4-4 Kagamiyama, Higashihiroshima, Hiroshima, 739-8528, Japan. kaoriw@hiroshima-u.ac.jp.
authors.forename: Kaori
authors.initials: K
authors.lastname: Wakabayashi
authors.affiliation: Plankton Laboratory, Graduate School of Marine Science and Technology, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato, Tokyo, 108-8477, Japan.
authors.forename: Yuji
authors.initials: Y
authors.lastname: Tanaka
authors.affiliation: Laboratory of Aquaculture, Graduate School of Biosphere Science, Hiroshima University, 1-4-4 Kagamiyama, Higashihiroshima, Hiroshima, 739-8528, Japan.
authors.forename: Kazuya
authors.initials: K
authors.lastname: Nagasawa
mesh_terms: D000818:Animals; D033342:Copepoda / Q000033:anatomy & histology* / Q000502:physiology*; D005260:Female; D008018:Life Cycle Stages; D008297:Male; D013045:Species Specificity