@article {6039, title = {Evolutionary aspects of cephalic sensory papillae of the Indo- Pacific species of Eleotris (Teleostei: Eleotridae)}, journal = {Zoologica Scripta}, year = {2019}, abstract = {

\ Eleotris species (Teleostei: Eleotridae) are one of the most common fish in Indo-Pacific estuaries and insular freshwater streams. In these rivers, they are a sit-andwaitpredator. They have an amphidromous life cycle,\  that is adults grow, feed and reproduce in rivers, while larvae have a marine dispersal phase. Larvae recruit back to rivers and settle in stream habitats. Primary characters used to determine\  Eleotris species are the presence and the disposition of cephalic sensory papillae rows on the operculum and under the eyes as well as scale row numbers. The morphology of these cephalic sensory papillae is of particular importance in this predatory genus as it is generally correlated in fish to predation and feeding. In this paper, we have established a molecular phylogeny of the genus based on the 12 mitochondrial protein- coding genes to discuss the relationship between Indo-Pacific\  Eleotris species. There is a well-supported dichotomy in the molecular phylogeny, and this separation into two main clades is also morphologically visible, as it reveals a difference in the arrangement of cephalic sensory papillae. Indeed, the phylogeny distinguishes the species with the {\textquotedblleft}open{\textquotedblright} pattern of the operculum sensory papillae and the species with the {\textquotedblleft}closed{\textquotedblright} one. This phylogeny thus reflects the morphology of the opercular papillae. The evolution of this character is discussed in terms of the adaptation of the\ Eleotris genus to life in tropical insular river systems.

}, doi = {DOI: 10.1111/zsc.12366}, author = {Marion Mennesson and Maeda, Ken and Philippe Keith} } @article {4584, title = {Specific gravity and migratory patterns of amphidromous gobioid fish from Okinawa Island, Japan}, journal = {Journal of Experimental Marine Biology and Ecology}, volume = {486}, year = {2017}, pages = {160-169}, abstract = {

Amphidromy is a diadromous life history pattern where fish spawn in freshwater, and their larvae drift downstream to the sea; the larvae develop in marine environments then migrate back in rivers to grow and reproduce. Two amphidromous types with different life history characteristics, such as egg and larval sizes, exist. To understand the ecology and early life history of amphidromous gobioid fish, six species from Okinawa Island were selected{\textemdash}two large egg-type species (Rhinogobius similis and Tridentiger kuroiwae) and four small egg-type species (Stiphodon percnopterygionus, Stenogobius sp., Sicyopterus lagocephalus, and Eleotris acanthopoma). The migratory pattern of four of these species was confirmed using otolith Sr:Ca and Ba:Ca ratios combined with water chemistry analysis. Although these species showed amphidromous migratory patterns, the timing of migration from estuarine to freshwater habitats was species-specific. The large egg-type, R. similis, showed three different migratory patterns: a long marine larval phase with a relatively fast migration from estuarine to freshwater habitats, a short marine larval phase with a relatively fast migration, and a gradual migration. Similar patterns of a long and fast migration or a gradual migration were seen in T. kuroiwae; however, the two small eggtype species, Sti. percnopterygionus and Stenogobius sp., showed rapid migration to freshwater after entering the river. To estimate larval ecology in the sea, ontogenetic changes in specific gravity (SG) were examined in all species. The SG was measured day and night for 1{\textendash}5 days until settlement in R. similis and T. kuroiwae, and until 10 days after hatching in the other species. The SG of all species ranged from 1.0138 to 1.0488, and varied among ontogenetic stages and between day and night and species. Larval SG was relatively similar between R. similis and T. kuroiwae, with low SG in the early stages and high SG after yolk absorption. During the late larval stages and until settlement, T. kuroiwae showed diel changes in SG, with higher SG during the day, whereas R. similis had a relatively constant pattern. The diel changes of T. kuroiwae larvae suggest different activity during the day and at night (e.g. diel vertical migration). In the four small egg-type species, SG was high at hatching and decreased thereafter, not showing large diel changes. The results suggest that sympatric amphidromous gobioid species have various early life histories that may be influenced by several larval traits, including SG.

}, keywords = {Buoyancy, diadromy, Early life history, Migratory history, otolith, Specific gravity}, author = {Iida, Midori and Masashi Kondo and H{\'e}l{\`e}ne Tabouret and Maeda, Ken and P{\'e}cheyran, C and Atsushi Hagiwara and Philippe Keith and Katsunori Tachihara} } @book {4364, title = {Indo-Pacific Sicydiine Gobies: biodiversity, life traits and conservation.}, year = {2015}, pages = {256}, publisher = { Soci{\'e}t{\'e} Fran{\c c}aise d{\textquoteright}Icthyologie}, organization = { Soci{\'e}t{\'e} Fran{\c c}aise d{\textquoteright}Icthyologie}, address = {Paris}, author = {Philippe Keith and Clara Lord and Maeda, Ken} } @article {4019, title = {Population structure of the Asian amphidromous Sicydiinae goby, Stiphodon percnopterygionus with comments on larval dispersal in the northwest Pacific Ocean.}, journal = {Life and Environment,}, volume = { 65}, year = {2015}, pages = {63-71}, keywords = {amphidromy, Larval dispersa, Population structure., Sicydiinae, Stiphodon}, author = {Clara Lord and Maeda, Ken and Philippe Keith and Watanabe, S} } @article {4098, title = {Population structure of the Asian amphidromous Sicydiinae goby, Stiphodon percnopterygionus with comments on larval dispersal in the northwest Pacific Ocean. }, journal = {Life and Environment}, volume = {65}, year = {2015}, pages = {63-71}, keywords = {amphidromy, larval dispersal, POPULATION STRUCTURE, Sicydiinae, Stiphodon}, author = {Clara Lord and Maeda, Ken and Philippe Keith and Watanabe, S} }