Pattern of Pigment Migration in Second Cheliped of Macrohrachium rosenhergii with Morphotypic Transformation
Pattern of Pigment Migration in Second Cheliped of Macrohrachium rosenhergii with Morphotypic Transformation
Date
2002
Authors
Ranjeet, K
Kurup, B. Madhusoodana
Journal Title
Journal ISSN
Volume Title
Publisher
Society of Fisheries Technologists (India)Cochin
Abstract
Changes in cell shape of chromatophores and subsequent pigment migration on the
second cheliped of the three main male morphotypes of Macrohrachium rosenhergii are
discussed. Cell enlargement as part of pigment accumulation in chromatophore was found
to be maximum in Blue clawed males (1.5 \im), followed by Orange clawed males (1.1 m)
and Small males (0.65 (im) in male morphotypes of M. rosenhergii. The concentration of
pigments at localized sites facilitated by chromatophoric extension through microtubules gave
characteristic orange and blue colour to the cheliped, which could directly or indirectly be
modulated by the chromtophoric hormones (CH) or pigment dispersing hormones (PDH).
Description
Keywords
Macrohrachium rosenhergii, Morphotypes, Chromatophores, Pigment Migration
Citation
Fishery Techn 39(2):94-99