The visual estimation of red king crab and snow crab viability during transportation
2018
Zagorskaya, D.S. | Zagorskij, I.A. | Kovatcheva, N.P. | Borisov, R.R. | Chertoprud, E.S.
The estimations of the physiological state of the red king crab Paralithodes camtschaticus and snow crab Chionoecetes opilio individuals on motor reactions based on the material collected in the Barents Sea was presented. This estimations can be used for determination of hydrobionts viability in the field, on shipboard, during the exposure at the basin complex and further transportation in live condition. It was find out that the set of markers is species-specific. The movement, motor activity of the walking limbs, antennules, limbs of the mouthparts and scaphagnatides were selected as markers for red king crab; and for snow crab — movement, motor activity of the walking limbs and limbs of the mouthparts, squeezing the pincers of the pereiopod under stimulation, the tone of the third pair of maxillipeds. Verification by biochemical hemolymph parameters of the method for visual estimation of viability was maked. The content of glucose, lactate, uric acid and total protein were used.
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