Occurrence and morphology of larvae and juveniles of six <Emphasis Type="Italic">Luciogobius</Emphasis> species from Aritsu Beach,Okinawa Island |
| |
Authors: | Ken Maeda Nozomi Yamasaki Masashi Kondo Katsunori Tachihara |
| |
Institution: | (1) Graduate School of Engineering and Science, University of the Ryukyus, 1 Senbaru, Nishihara-cho, Nakagami-gun, Okinawa 903-0213, Japan;(2) Laboratory of Fisheries Biology and Coral Reef Studies, Faculty of Science, University of the Ryukyus, 1 Senbaru, Nishihara-cho, Nakagami-gun, Okinawa 903-0213, Japan |
| |
Abstract: | Larvae and juveniles of six species of Luciogobius were collected at Aritsu Beach on Okinawa Island using a small seine. Postflexion larvae were dominant during sampling and
were collected when they approached the shoreline adjacent to or at the entrances to their adult habitats prior to settlement.
Standard lengths of postflexion larvae ranged from 5.4 to 14.4 mm and varied depending on the species. The larvae occurred
mainly from January to April, but some larvae were caught in October and November. Their pelagic larval durations were estimated
to range from 17 to 36 days and varied depending on the species. Morphologies of field-caught larvae and juveniles and laboratory-reared
juveniles were described. Six species were clearly distinguished based on fin ray and vertebral counts, proportions, body
size, and pigment patterns. Although their taxonomic statuses could not be determined, it is thought that they have independent
relatives in other regions. |
| |
Keywords: | Luciogobius Larvae and juveniles Okinawa Island Pelagic larval duration Gobiidae |
本文献已被 SpringerLink 等数据库收录! |
|