Some notes and observations of Glow Worm larvae in captivity
 
 
Total number of glows x 24 nights   879     Highest recorded number of glows per observation period   239
Total average glows per night   36.65     Highest recorded number of glows per single minute period   7
 
 
Date: 29/08/12 ... Time: 22:00h-00:00h. ... Conditions: Indoors at room temperature. Substrate dry. ... Food available: No.
Notes: No activity for almost an hour, but became active at 22:55h. Glowed intermittently for around 15 minutes, before glowing well from 23:29h. Glowed a total of 20 times.
 
 
Date: 30/08/12 ... Time: 22:00h-00:00h. ... Conditions: Indoors at room temperature. Substrate dry. ... Food available: No.
Notes: Remained completely inactive for most of the observing period and glowed once briefly at 22:14h. Suddenly became active at 23:54h. Seen to glow on just eight occasions.
 
 
Date: 31/08/12 ... Time: 22:00h-00:00h. ... Conditions: Indoors at room temperature. Substrate dry. ... Food available: Yes.
Notes: Larva 2 extremely active throughout the two hour observation period and was noted to glow twice just before observations began. Recorded glowing a total of 94 times.
 
 
Date: 01/09/12 ... Time: 22:00h-00:00h. ... Conditions: Indoors at room temperature. Substrate dry. ... Food available: Yes. Had eaten.
Notes: Larva noted to have eaten slug during the day. Remained inactive during observation period.
 
 
Date: 02/09/12 ... Time: 22:00h-00:00h. ... Conditions: Indoors at room temperature. Substrate damp. ... Food available: No.
Notes: Larva totally inactive during the day and throughout the two hour observation period..
 
 
Date: 03/09/12 ... Time: 22:00h-00:00h. ... Conditions: Indoors at room temperature. Substrate dry and disturbed. ... Food available: No.
Notes: Larva glowed 33 times, though was not very active, moved little and spent most of the observing period under wood placed on substrate.
 
 
Date: 04/09/12 ... Time: 22:00h-00:00h. ... Conditions: Indoors at room temperature. Substrate partly wet. ... Food available: No.
Notes: Larva very active and recorded glowing a total of 239 times. On several occasions, was noted glowing five or six times per minute. Glowing consistantly around mid way through the observation period.
 
 
Date: 05/09/12 ... Time: 22:00h-00:00h. ... Conditions: Indoors at room temperature. Substrate damp. ... Food available: No.
Notes: Larva inactive. No glows recorded.
 
 
Date: 06/09/12 ... Time: 22:00h-00:00h. ... Conditions: Indoors at room temperature. Substrate wet. ... Food available: No.
Notes: Container left in full sun for long periods during the day. Larva inactive and glowed just once at 23:06h.
 
 
Date: 07/09/12 ... Time: 22:00h-00:00h. ... Conditions: Indoors at room temperature. Substrate dry. ... Food available: Yes.
Notes: Larva inactive most of the time and on inspection, was found to be eating a slug. Surprisingly recorded glowing faintly three times, two of very long duration. Recorded glowing lengths were 6 minutes, 10 seconds and 24 minutes. Larva still glowing faintly at the end of the observation period.
 
 
Date: 08/09/12 ... Time: 22:00h-00:00h. ... Conditions: Indoors at room temperature. Substrate wet. ... Food available: No.
Notes: Larva inactive.
 
 
Date: 09/09/12 ... Time: 22:00h-00:00h. ... Conditions: Indoors at room temperature. Substrate dry. ... Food available: No.
Notes: Larva active for the first hour of the observation period. Became inactive after 23:00h. Glowed 39 times.
 
 
Date: 10/09/12 ... Time: 22:00h-00:00h. ... Conditions: Indoors at room temperature. Substrate changed and wet. ... Food available: No.
Notes: Larva inactive.
 
 
Date: 11/09/12 ... Time: 22:00h-00:00h. ... Conditions: Indoors at room temperature. Substrate damp. ... Food available: No.
Notes: Larva inactive.
 
 
Date: 12/09/12 ... Time: 22:00h-00:00h. ... Conditions: Indoors at room temperature. Substrate dry. ... Food available: Yes.
Notes: Larva inactive.
 
 
Date: 13/09/12 ... Time: 22:00h-00:00h. ... Conditions: Indoors at room temperature. Substrate wet. ... Food available: Yes.
Notes: Larva inactive.
 
 
Date: 14/09/12 ... Time: 22:00h-00:00h. ... Conditions: Indoors at room temperature. Substrate damp. ... Food available: Yes.
Notes: Larva inactive during the observing period, but recorded feeding on small snail during the afternoon.
 
 
Date: 15/09/12 ... Time: 22:00h-00:00h. ... Conditions: Indoors at room temperature. Substrate dry. ... Food available: Yes.
Notes: Larva observed on substrate surface at 08:15h, then found eating a snail in the afternoon. Larva inactive and still eating snail during the observation period.
 
 
Date: 16/09/12 ... Time: 22:00h-00:00h. ... Conditions: Indoors at room temperature. Substrate dry. ... Food available: No.
Notes: Larva inactive for the first hour of the observation period and found resting on a stone. Glowed once at 22:50h and again at 23:00h, before becoming very active a minute later, eventually producing a total of 178 glows (within an hour) by the end of the observing period.
 
 
Date: 17/09/12 ... Time: 22:00h-00:00h. ... Conditions: Indoors at room temperature. Substrate dry. ... Food available: No.
Notes: Larva inactive and under a stone till 22:39h. A single glow noted, but then moved out and glowed for a short period, but remaned generally inactive. Became very active from 23:06h for about 40 minutes, then was inactive for about 15 minutes, then active again and still glowing for a while after the end of the observing period. Glowed 213 times with three ten second glows recorded, the first time any of the 11 study larvae have produced over 100 glows on consectutive evenings. A gpm count of seven produced at 23:34h.
 
 
Date: 18/09/12 ... Time: 22:00h-00:00h. ... Conditions: Indoors at room temperature. Substrate wet. ... Food available: No.
Notes: Larva active at the start of the observation period, glowing 20 times before going under cover and become inactive. Was later seen to be acxtive and glowing again after 00:30h.
 
 
Date: 19/09/12 ... Time: 22:00h-00:00h. ... Conditions: Indoors at room temperature. Substrate damp. ... Food available: Yes.
Notes: Larva found with large snail prior to the observation period at 21:35h. Snail still moving slightly at 00:00h, with larva attached to shell, but not yet feeding. Numerous glows were seen (total of 33), these decreasing as the observation period went on. Larva still not feeding at 00:00h.
 
 
Date: 20/09/12 ... No data available. Larva feeding on snail during all day.
 
 
Date: 21/09/12 ... Time: 22:00h-00:00h. ... Conditions: Indoors at room temperature. Substrate dry. ... Food available: Yes.
Notes: Larva inactive and occasionally still feeding during the morning.
 
 
Date: 22/09/12 ... Time: 22:00h-00:00h. ... Conditions: Indoors at room temperature. Substrate dry. ... Food available: No.
Notes: Larva inactive.
     
     
Glow Worm larvae observational data    
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