The sheaths from freshly teased nerve fibers of the prawn exhibit a positive radial birefringence, consistent with their EM appearance as highly organized laminated structures composed of numerous thin cytoplasmic sheets or laminae bordered by unit membranes and arranged concentrically around the axon. The closely apposed membranes in these sheaths are fragile and often break down into rows of ...

An experiment was conducted at Dumurpota of Satkhira district for six months to compare the production performance prawn (Macrobrachium rosenbergii) under all-male and mixed sex culture systems with carps (Labeo rohita Catla catla). A total experimental ghers were used two treatments in triplicates: (T1) (T2). In both treatments, prawns stocked a rate 10,000 PL/ha while C. catla L. each 650 fin...

In the second paper of this series (Carlisle, 1959b) I have described the results of various experimental manipulations upon the termination of the male phase in the protandric hermaphrodite Pandalus borealis Kmyer. In this paper I shall be concerned with the effects of such interference upon the initiation of the female phase of the life history. In a number of papers Panouse (1943-8) provided...

BACKGROUND The oriental river prawn (Macrobrachium nipponense) is the most prevalent aquaculture species in China. The sexual precocity in this species has received considerable attention in recent years because more and more individuals matured at a small size, which devalues the commercial production. In this study, we developed deep-coverage transcriptomic sequencing data for the ovaries of ...