Latency of mechanically stimulated escape responses in the Pacific spiny dogfish, Squalus suckleyi.
J Exp Biol
; 224(Pt 3)2021 02 04.
Article
em En
| MEDLINE
| ID: mdl-33431597
ABSTRACT
Fast escape responses to a predator threat are fundamental to the survival of mobile marine organisms. However, elasmobranchs are often underrepresented in such studies. Here, we measured the escape latency (time interval between the stimulus and first visible reaction) of mechanically induced escape responses in the Pacific spiny dogfish, Squalus suckleyi, and in two teleosts from the same region, the great sculpin, Myoxocephalus polyacanthocephalus, and the pile perch, Rhacochilus vacca We found that the dogfish had a longer minimum latency (66.7â
ms) compared with that for the great sculpin (20.8â
ms) and pile perch (16.7â
ms). Furthermore, the dogfish had a longer latency than that of 48 different teleosts identified from 35 different studies. We suggest such long latencies in dogfish may be due to the absence of Mauthner cells, the giant neurons that control fast escape responses in fishes.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Squalus
/
Squalus acanthias
Limite:
Animals
Idioma:
En
Revista:
J Exp Biol
Ano de publicação:
2021
Tipo de documento:
Article