Reproductive behavior of the blenniid fish Meiacanthus kamoharai was investigated in Tachibanaura Bay, Kochi Prefecture, Japan in 2016–2018. The species is sexually dimorphic, with males having more elongated caudal-fin rays and longer pelvic-fin rays than females. During the spawning season, males exhibited two types of coloration, ‘blackening’ and ‘whitening’, which were observed during male–male competition and the increase of sexual motivation in males, respectively. The mating system was suggestive of male-territory-visiting polygamy, with males assuming exclusive parental care of multiple batches in the nest. Courtship displays by a female towards males were frequent in June and July, while males positively exhibited displays in August, indicating that the courtship roles of individuals changed seasonally during a single spawning season.

中文翻译：

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鹧鸪鹬的季节性求偶角色变化及繁殖行为

2016-2018 年在日本高知县立花浦湾调查了 blenniid 鱼 Meacanthus kamoharai 的繁殖行为。该物种是两性异形的，雄性的尾鳍鳍条和腹鳍条比雌性更长。在产卵季节，雄性表现出两种颜色，“变黑”和“变白”，分别在雄性竞争和雄性性动机增加期间观察到。交配系统暗示了雄性领土访问的一夫多妻制，雄性在巢中承担多批次的独家父母照顾。雌性对雄性的求爱表现在 6 月和 7 月频繁，而雄性在 8 月表现出积极的表现，表明个体在单个产卵季节的求偶作用随季节而变化。