caa a22 4500 465763847 CHVBK 20180323111907.0 cr unu---uuuuu 170327e19900501xx s 000 0 eng 10.1007/BF00237826 doi (NATIONALLICENCE)springer-10.1007/BF00237826 Pankhurst N. Leigh Marine Laboratory, University of Auckland, Private Bag, Auckland, New Zealand aut Growth and reproduction of the Antarctic nototheniid fish Pagothenia borchgrevinki [Elektronische Daten] [N. Pankhurst] Summary: Growth and reproductive parameters were recorded from Pagothenia borchgrevinki captured from beneath the sea ice in McMurdo Sound during October and November 1987. Fish were aged on the basis of unvalidated check rings in otoliths. Fish were estimated to be 2-7 years old. There was good correlation of estimated ages with length-frequency modes for a number of year classes. Growth was linear, and did not approach an asymptote with increasing age. Most females were in the early stages of vitellogenesis, however, 2 fish showed evidence of imminent or recent spawning activity. Males were all in the early stages of spermatogenesis. Relative fecundity was low, and this was associated with large egg size. Ovarian development was group synchronous, and it appears that spawning mainly occurs during winter. Springer-Verlag, 1990 Polar Biology Springer-Verlag 10/5(1990-05-01), 387-391 0722-4060 10:5<387 1990 10 300 https://doi.org/10.1007/BF00237826 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00237826 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Pankhurst N. Leigh Marine Laboratory, University of Auckland, Private Bag, Auckland, New Zealand aut NATIONALLICENCE 773 0- Polar Biology Springer-Verlag 10/5(1990-05-01), 387-391 0722-4060 10:5<387 1990 10 300 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer