Makeyeva, 1996



Citation


No detailed citation.

Associated characteristics


Species Development state Trait Primary Data Secondary Data
Aristichthys nobilis Female Maximum GSI value In Fish from Moldova ponds maturation indexes comprised only 6-9%, on other coolers of Ukraine 10-12%. By our observations in ponds in Turmenistan and Uzbekistan this index comprises 11-13% 7.5 percent
Aristichthys nobilis Female Onset of oogenesis In autumn and early spring gonads were at III stage of maturation ['April', 'May', 'December', 'June', 'October', 'November']
Aristichthys nobilis Egg Egg size after water-hardening 5.0-5.2 [Membrane after swelling] 5.1 mm
Aristichthys nobilis Female Intensifying oogenesis activity At end of April and beginning of May, gonads reached the IV stage of maturation [Gsi about 7-13%] ['April', 'May']
Aristichthys nobilis Female Oocyte development Low indexes of recorded maturation and of asynchronism in gamete development were characteristic of this species Asynchronous
Aristichthys nobilis Egg Oocyte diameter Average 1.64 [Diameter of the ovulated oocytes] 1.64 mm