We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Physiological changes during simulated live transport of Cancer pagurus and recovery in holding tanks.
- Authors
Barrento, Sara; Marques, António; Vaz-Pires, Paulo; Nunes, Maria Leonor
- Abstract
The trade of live Cancer pagurus in Portugal is totally dependent on imports, mainly from UK. Animals are transported for 48-58 h in conditions that promote high mortalities (40-60%) due to cumulative stressors. The present work aimed to optimize transport, by comparing the physiological responses of edible crab during different simulated live shipment systems for 48 h and recovery conditions: (a) immersed crabs at 12°C; and (b) air-exposed crabs at 4°C and subsequent recovery at 16°C with and without pre-acclimation. Both simulated transport systems induced physiological stress, culminating in 25% mortality in immersed conditions and only 4% in air-exposed conditions. Both systems elicited anaerobic responses marked by hyperglycaemia and increased l-lactate concentration in haemolymph. At the end of the recovery period only air-exposed animals resumed to l-lactate and pH control values, the lowest mortality was achieved with crabs acclimated at the lowest temperature (from 6 to 16°C at 1.5°C/h). Overall, results showed that crabs can be transported in air-exposed conditions at 4°C and acclimated from 6 to 16°C and reach similar physiological conditions than the traditional transport in immersed conditions at 12°C.
- Subjects
UNITED Kingdom; CANCER pagurus; PHYSIOLOGY; MORTALITY; HYPERGLYCEMIA
- Publication
Aquaculture Research, 2012, Vol 43, Issue 10, p1415
- ISSN
1355-557X
- Publication type
Article
- DOI
10.1111/j.1365-2109.2011.02943.x