Bibliothèque Tour du Valat

Se connecter

Mot de passe oublié ?
Pas encore inscrit ?

La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Détail

Ajouter au panier

Ajouter au panier

Lien vers la notice

Titre :	Time, space and the ecophysiology of squid growth, life in the fast lane (2001)
Auteurs :	G. D. Jackson, Auteur ; R. K. O'Dor, Auteur
Type de document :	Article
Dans :	Vie et Milieu - Life and Environment (51(4) décembre 2001)
Article en page(s) :	205-215
Langues:	Anglais
Résumé :	Squids are important components of many marine ecosystems and continue to come under increasing commercial fishing pressure. In some heavily fished regions, squid have replaced their teleost competitors. They achieve this through rapid growth and short life spans. Valuable insights have been made regarding squid life histories by both statolith ageing studies and cult-are experiments where growth could be observed in the laboratory. These studies continue to reveal that most species of squid live for a year or less and there is only evidence from a small number of species for life spans longer than a year. Small warm water species can complete their life spans in just a few months. While there has been some recently published statolith increment validation experiments, there is a need for increased work in this area. Squids appear to have fast growth rates and short life spans due to: (1) a combination of efficient digestion with a protein based metabolism; (2) the ability to sustain continued growth by a combination of both an increase in muscle fibre size (hypertrophy) along with continual recruitment of new muscle fibres (hyperplasia); (3) efficient use of oxygen and (4) low levels of antioxidative defense. Heavy fishing pressure on large late maturing fishes may have irreversibly tipped the balance of the ecosystem in favour of the fast growing short-lived squids. Detailed studies of marine protected areas (MPA's) including the use of telemetry technology will help clarify if and how overfished ecosystems can be brought back to their original 'balance'.
En ligne :	https://wwwphp.obs-banyuls.fr/Viemilieu/images/Archives_1950-2002/vie-et-milieu/VOLUME_2001_51_fasc4.pdf

FAQ

Infos pratiques

Heures d'ouverture et contact

Lundi , mardi et jeudi de 9h à 12h et de 13h à 17h00 : ouverture au public ...

Liens utiles

A-
A
A+