Physiological changes during simulated live transport of Cancer pagurus and recovery in holding tanks

• Tipo: Artigo em Revista Científica Internacional
• Data: 2012

Autores

barrento, s (Autor) Outra; marques, a (Autor) Outra; vaz-pires, p (Autor) ICBAS; nunes, ml (Autor) ICBAS

Revista

Título: Aquaculture Research

Vol. 43

Páginas: 1415-1426

ISSN: 1355-557X

Editora: Wiley-Blackwell

Indexação

ISI Web of Knowledge - 3 Citações

Scopus - 6 Citações

Classificação Científica

FOS: Ciências agrárias > Agricultura, silvicultura e pescas

Outras Informações

ID Authenticus: P-002-6C7

DOI: 10.1111/j.1365-2109.2011.02943.x

Abstract (EN): The trade of live Cancer pagurus in Portugal is totally dependent on imports, mainly from UK. Animals are transported for 4858 h in conditions that promote high mortalities (4060%) 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 degrees C; and (b) air-exposed crabs at 4 degrees C and subsequent recovery at 16 degrees 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 degrees C at 1.5 degrees C/h). Overall, results showed that crabs can be transported in air-exposed conditions at 4 degrees C and acclimated from 6 to 16 degrees C and reach similar physiological conditions than the traditional transport in immersed conditions at 12 degrees C.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 12