Studies on the behaviour and substratum preference in juveniles of the marine prawn, Metapenaeus monoceros (Fabricius)

✍ Scribed by P. K. Joshi; G. K. Kulkarni; R. Nagabhushanam

• Book ID: 104617661
• Publisher: Springer
• Year: 1979
• Tongue: English
• Weight: 218 KB
• Volume: 65
• Category: Article
• ISSN: 1573-5141
• DOI: 10.1007/bf00038859

✦ Synopsis

Circadian rhythmicity in the behaviour of the marine prawn, Metapenaeus monoceros (Fab) and its substratum preference has been observed under laboratory conditions . In the morning at 9 . a .m . 80%o prawns remain buried and in the afternoon at 3 p .m . 6o% burrowing was observed . A contrasting situation was observed in the night i .e . 17% burrowing at 9 p .m . and 30% burrowing at 3 a .m, was registered . In the second set of experiments juveniles were subjected to four types of substrata viz . mud, black fine sand, white coarse sand and stones . It was noted that M. monoceros showed more affinity towards the mud and less preference to other substrata . The obtained results are discussed to provide clues for prawn fishing .