Significance of periodic fluctuations in the haemolymph carbohydrates ofScylla serrata (Forskal) during starvation and repeated injury

✍ Scribed by Saravanan, T. S. ;Ravindranath, M. H.

• Publisher: John Wiley and Sons
• Year: 1981
• Tongue: English
• Weight: 635 KB
• Volume: 218
• Category: Article
• ISSN: 0022-104X
• DOI: 10.1002/jez.1402180206

✦ Synopsis

Abstract

Haemolymph carbohydrates of S. serrata, including reducing sugars (RS), nonreducing sugars (NRS), and glycogen (free and bound to protein) showed intermittent fluctuations in animals subjected to starvation in combination with injury and exsanguination stress (Group I), whereas in animals subjected to starvation alone (Group II) only RS levels showed such significant periodic fluctuations. The timing of periodic ‘peaks’ in the haemolymph total free sugar (TFS) and RS coincided in both groups of animals. Haemolymph TFS, although declining throughout 33 days of starvation, increased significantly on three different days. Similar patterns were observed in the patterns of reducing sugar. Levels of haemolymph NRS and glycogen were greater throughout the 33 days of starvation in group I than in group II. NRS, glycogen, and protein‐bound polysaccharides (PBS) exhibited significant fluctuations only in Group I animals. The significance of the periodic fluctuations in haemolymph carbohydrates is discussed.