caa a22 4500 44529647X CHVBK 20180317142543.0 cr unu---uuuuu 170323e20100301xx s 000 0 eng 10.1134/S0032945210020025 doi (NATIONALLICENCE)springer-10.1134/S0032945210020025 New data on biology of the pearlfish Maurolicus imperatorius (Sternopthychidae) from the Emperor Seamount Chain [Elektronische Daten] [V. Savinykh, A. Baytalyuk] The pearlfish Maurolicus imperatorius occurs above seamounts of the Emperor Seamount Chain between 30°-40° N and 168°-176° E. It forms dense aggregations at the daytime in the upper mesopelagial above the ground and disperses in the dark period of the day in the surficial layer. Judged by maturation dynamics of gonads, the spawning of this species occurs from January until April with the maximum in March. Catches of this species are characterized by expressed seasonal dynamics of size composition. Juveniles appear in catches in the end of spring-the beginning of summer. The maximum recorded SL is 68 mm. Among large fish, females dominate. The part of females is maximum in winter and minimum in spring. The age of fish with AC 46-63 mm is 265-420 days. The growth rate is abruptly retarded at the fourth month of life when the length 40-45 mm is attained. Life duration of most fish does not exceed 1.5 years, though some specimens may attain the age of two years. It is supposed that the presence of another species—M. japonicus—on the Emperor Seamount Chain may result from passive transfer in the Kuroshio waters. Pleiades Publishing, Ltd., 2010 pearlfish nationallicence Maurolicus nationallicence distribution nationallicence size nationallicence spawning nationallicence otoliths nationallicence age nationallicence growth nationallicence diet nationallicence Savinykh V. Pacific Research Fishery Center (TINRO-Center), tupik Shevchenko 4, 690600, Vladivostok, Russia aut Baytalyuk A. Pacific Research Fishery Center (TINRO-Center), tupik Shevchenko 4, 690600, Vladivostok, Russia aut Journal of Ichthyology SP MAIK Nauka/Interperiodica 50/2(2010-03-01), 148-158 0032-9452 50:2<148 2010 50 11489 https://doi.org/10.1134/S0032945210020025 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S0032945210020025 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Savinykh V. Pacific Research Fishery Center (TINRO-Center), tupik Shevchenko 4, 690600, Vladivostok, Russia aut NATIONALLICENCE 700 1- Baytalyuk A. Pacific Research Fishery Center (TINRO-Center), tupik Shevchenko 4, 690600, Vladivostok, Russia aut NATIONALLICENCE 773 0- Journal of Ichthyology SP MAIK Nauka/Interperiodica 50/2(2010-03-01), 148-158 0032-9452 50:2<148 2010 50 11489 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer