A new record of Caprella aino (Crustacea: Amphipoda: Caprellidae) from the southeastern waters of Korea, with comparison to Caprella mutica
Ryu, G.B.; Park, W.G. (2023). A new record of Caprella aino (Crustacea: Amphipoda: Caprellidae) from the southeastern waters of Korea, with comparison to Caprella mutica. Fisheries and Aquatic Sciences 26(7): 455-459. https://dx.doi.org/10.47853/fas.2023.e38
In: Fisheries and Aquatic Sciences. Korean Society of Fisheries and Aquatic Science: Busan. ISSN 2234-1749; e-ISSN 2234-1757, more
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| Keywords |
Caprella aino Utinomi, 1943 [WoRMS]; Caprella mutica Schurin, 1935 [WoRMS]
Marine/Coastal |
| Author keywords |
New record; Caprella aino; Caprella mutica; Korean water |
| Abstract |
40 species of the family Caprellidae Leach, 1814 are recorded in Korean waters. Caprella aino Utinomi, 1943 was newly collected from seaweed farms from the southeastern waters of Korea. C. aino was firstly reported in Japanese waters in 1943. Adults of C. aino and Caprella mutica Schurin, 1935 are easily distinguished in that C. aino have pereonite II and gnathopod II without setae and two small tubercles of articulation of gills in pereonite III–IV, while C. mutica do pereonite II and gnathopod II covered with setae and those of pereonites III–VII with many tubercles. However, subadult C. mutica is hardly distinguishable from C. aino in that tubercles of pereonite III are less developed and they have inconspicuous setae of pereonite II and gnathopod II. Nevertheless, C. aino is distinguished from subadult C. mutica because adult C. aino have dorsal tubercles on pereonite IV, V, VI, VII unlike that of C. mutica. We report C. aino as a new record in Korean water with comparison of C. mutica. |
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