The residence and movement patterns of the marbled flounder Pseudopleuronectes yokohamae were investigated around a spawning ground located off the coast of Nagasaki point, southern Suo Nada, Seto Inland Sea, Japan. Twenty marbled flounder (9 females and 11 males) tagged with ultrasonic transmitters were released on November 29, 2017, before the peak spawning season (peak spawning season: mid–late December), and their distributions were recorded by 15 acoustic receivers until January 21, 2018. Eighteen fish roamed around in the study site or disappeared from the study site but appeared again. The 18 fish then emigrated from the study site by mid-December. The remaining two (1 female and 1 male) of the 20 tagged fish resided until mid-January and continuously roamed around areas of silt–clay to very coarse sand bottom sediments both day and night during the peak spawning season. Movement patterns of marbled flounder may be related to spawning site selection or reproductive behaviors. The fish that emigrated may have roamed around the study site or surrounding areas in order to judge whether to spawn there, but most of them may not have in the study site. In contrast, the remaining two fish may have reproduced within the study site.

大理石比目鱼Pseudopleuronectes yokohamae的居住和运动方式我们在日本濑户内海索那达南部长崎岬海岸附近的产卵场周围进行了调查。2017年11月29日，在高峰产卵季节（高峰产卵季节：12月中下旬）之前，发布了二十枚贴有超声波发射器的大理石比目鱼（9头雌性和11头雄性），并由15个声学接收器记录了它们的分布，直到1月21日。 ，2018年。十八条鱼在研究地点漫游或从研究地点消失，但又出现了。然后，这18条鱼在12月中旬从研究地点迁出。在有标记的20条鱼中，剩下的两只（雌性和雄性1只）一直生活到1月中旬，并在产卵高峰期的白天和黑夜不断地在粉质粘土附近漫游，直至形成非常粗糙的沙底沉积物。大理石比目鱼的运动方式可能与产卵位的选择或繁殖行为有关。移出的鱼可能在研究地点或周围地区漫游，以便判断是否在该地点产卵，但其中大多数可能不在研究地点。相反，其余两条鱼可能在研究地点内繁殖。