Spermatogenesis and physiological maturity of male red king crab ( Paralithodes camtschaticus Tilesius, 1815) and snow crab ( Chionoecetes opilio Fabricius, 1788) in the Barents Sea Filina, E.A. Marine Biology Research 7(3): 289-296 2011 1745-1000 10.1080/17451000.2010.497188 https://eurekamag.com/research/067/353/067353697.php