LotaV3, Main, Exploration, bibRecord, 001A77

Some factors affecting survival and oxygen uptake in a subtropical beach flea

Identifieur interne : 001A77 ( Main/Exploration ); précédent : 001A76; suivant : 001A78

Some factors affecting survival and oxygen uptake in a subtropical beach flea

Auteurs : I. D. Marsden [Nouvelle-Zélande]

Source :

Journal of Experimental Marine Biology and Ecology [ 0022-0981 ] ; 1985.

RBID : ISTEX:F2FFBB593EF0D9F1378E616E99FCAD1A30267CBC

Descripteurs français

Pascal (Inist)
- Amphipoda, Australie, Chroestia lota, Consommation oxygène, Environnement, Milieu marin, Métabolisme énergétique, Océan Pacifique Sud, Respiration, Salinité, Substrat meuble littoral, Survie, Température, Zone subtropicale.
Wicri :
- geographic : Australie.
- topic : Milieu marin, Zone subtropicale.

English descriptors

KwdEn :
- Amphipoda, Australia, Energy metabolism, Environment, Littoral soft substrate, Marine environment, Oxygen consumption, Respiration, Salinity, South Pacific, Subtropical zone, Survival, Temperature.

Abstract

The survival and oxygen uptake of the supralittoral amphipod Chroestia lota Marsden & Fenwick were investigated in humid air and sea water between 15 and 35°C. Seven-day exposure experiments were made on three size groups of amphipods at 6 constant temperatures (15, 20, 25, 30, 35, 40 °C) and three cyclic temperatures (15–25, 20–30, 25–35°C) in air and in sea water at 34 and 17%. salinity. Neither size, treatment nor temperature affected survival between 15 and 30°C. Mortality increased > 30°C with large individuals being consistently less tolerant than medium and small amphipods. While amphipods exposed to cyclic temperatures during submersion had reduced survival compared with constant temperatures, those individuals exposed to cyclic conditions in humid air showed the greatest resistance. Oxygen uptake of Chroestia increased with dry body wt and, over the range 15–35°C, this semi-terrestrial beach flea could maintain its aerial VO2 following submersion. Oxygen uptake increased directly in proportion to gill area and the weight specific gill area was low, consistent with the need to reduce desiccation. It is suggested that total gill area does not limit oxygen uptake in Chroestia and that cutaneous respiration may be important especially in aquatic conditions.

Url:

https://api.istex.fr/document/F2FFBB593EF0D9F1378E616E99FCAD1A30267CBC/fulltext/pdf

DOI: 10.1016/0022-0981(85)90231-X

Affiliations:

Nouvelle-Zélande

Le document en format XML

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<term>Marine environment</term>
<term>Oxygen consumption</term>
<term>Respiration</term>
<term>Salinity</term>
<term>South Pacific</term>
<term>Subtropical zone</term>
<term>Survival</term>
<term>Temperature</term>
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<keywords scheme="Pascal" xml:lang="fr"><term>Amphipoda</term>
<term>Australie</term>
<term>Chroestia lota</term>
<term>Consommation oxygène</term>
<term>Environnement</term>
<term>Milieu marin</term>
<term>Métabolisme énergétique</term>
<term>Océan Pacifique Sud</term>
<term>Respiration</term>
<term>Salinité</term>
<term>Substrat meuble littoral</term>
<term>Survie</term>
<term>Température</term>
<term>Zone subtropicale</term>
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<front><div type="abstract" xml:lang="en">The survival and oxygen uptake of the supralittoral amphipod Chroestia lota Marsden & Fenwick were investigated in humid air and sea water between 15 and 35°C. Seven-day exposure experiments were made on three size groups of amphipods at 6 constant temperatures (15, 20, 25, 30, 35, 40 °C) and three cyclic temperatures (15–25, 20–30, 25–35°C) in air and in sea water at 34 and 17%. salinity. Neither size, treatment nor temperature affected survival between 15 and 30°C. Mortality increased > 30°C with large individuals being consistently less tolerant than medium and small amphipods. While amphipods exposed to cyclic temperatures during submersion had reduced survival compared with constant temperatures, those individuals exposed to cyclic conditions in humid air showed the greatest resistance. Oxygen uptake of Chroestia increased with dry body wt and, over the range 15–35°C, this semi-terrestrial beach flea could maintain its aerial VO2 following submersion. Oxygen uptake increased directly in proportion to gill area and the weight specific gill area was low, consistent with the need to reduce desiccation. It is suggested that total gill area does not limit oxygen uptake in Chroestia and that cutaneous respiration may be important especially in aquatic conditions.</div>
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Serveur d'exploration Lota lota

Some factors affecting survival and oxygen uptake in a subtropical beach flea

Some factors affecting survival and oxygen uptake in a subtropical beach flea

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

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