Record Details

Comparison of growth and gonad development of farmed green mussel Perna viridis L. in three habitats

KRISHI: Publication and Data Inventory Repository

View Archive Info
 
 
Field Value
 
Title Comparison of growth and gonad development of farmed green mussel Perna viridis L. in three habitats
Not Available
 
Creator Kripa,V
Mohamed,K S
Velayudhan,T S
Joseph,Mathew
Alloycious,P S
Jenni,B
 
Subject Perna viridis
instantaneous growth rate
gametogenesis
mussel seed
 
Description Not Available
The green mussel Perna viridis was farmed in three different ecosystems, viz., a semienclosed bay
(Kollam Bay), estuary (Ashtamudi Lake) and open sea (off Narakkal) along Kerala coast during the period 2003-2004. Mussels of the length range 25 to 32 mm were seeded on to nylon ropes and suspended from off bottom structures. Their growth in length, width, depth, total weight and meat
weight were measured at monthly intervals. The condition index (CI) and gonad development were also observed. The farm ecology was monitored and the variations in salinity, temperature, nutrients and productivity during the culture period were recorded and correlated with biological parameters. The instantaneous growth rates (IGR) in length, width and depth were the highest at 0.0124, 0.010
and 0.012 mm day-1 respectively in mussels grown in the sea and these were significantly different (p < 0.05) from those of mussels grown in the bay and estuary. The IGR in total weight was also the higher for the mussels grown in the sea (0.028 mg day-1) and bay (0.022 mg day-1) but were lower and significantly different from those grown in the estuary (0.013 mg day-1). In the bay and open sea farm, all the reproductive stages were observed indicating that mussels were reproductively active at these sites. However, in the estuarine farms, completely spent mussels were not observed. The ecological conditions and growth rates indicate that it is possible to have two crops from bay (August/ September to December/January; February/March to May/June) and sea (September/October to December/January; January/February to March/April) while in the estuary only one crop (November/ December to May/June) is possible due to the low saline conditions from June to October. The
observations on the reproductive stages of mussels indicate that it is also possible to collect seed mussels
from bay and sea farms during the spawning period of mussels by placing suitable spat collectors.
Not Available
 
Date 2021-09-15T09:26:00Z
2021-09-15T09:26:00Z
2009
 
Type Article
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/62399
 
Language English
 
Relation Not Available
 
Publisher MBAI