THE EFFECT OF OXYGEN-TENSION ON THE SWIMMERET RATE OF CALLIANASSA-AUSTRALIENSIS AND C-ARENOSA (CRUSTACEA, DECAPODA, THALASSINIDEA)

Citation
Bd. Paterson et Mj. Thorne, THE EFFECT OF OXYGEN-TENSION ON THE SWIMMERET RATE OF CALLIANASSA-AUSTRALIENSIS AND C-ARENOSA (CRUSTACEA, DECAPODA, THALASSINIDEA), Marine behaviour and physiology, 24(1), 1993, pp. 15-24
Citations number
24
Categorie Soggetti
Marine & Freshwater Biology
ISSN journal
0091181X
Volume
24
Issue
1
Year of publication
1993
Pages
15 - 24
Database
ISI
SICI code
0091-181X(1993)24:1<15:TEOOOT>2.0.ZU;2-9
Abstract
Previous workers have concluded that callianassid burrow ventilation r epresents a reflex response to declining oxygen tension. However, C. a ustraliensis increases swimmeret rate when anoxic, whilst C. arenosa r esponds differently by increasing swimmeret rate as oxygen tension fal ls (as predicted by the reflex model). None of the shrimps ceased swim meret ventilation in anoxic conditions. When oxygen tension was raised after 3-4 h of anoxia, C. australiensis showed a significant fall in swimmeret activity. The oxygen reflex model cannot apply to all callia nassids because many species use burrow ventilation for sediment purgi ng as well as burrow oxygenation. Differences between species may aris e because of variation in environment, feeding behaviour and anoxia to lerance.