Abstract
Crabs from different intertidal environments show different anaerobic metabolic responses to hypoxia and activity. I chose to compare Carcinus maenas, a species which lives in a variety of habitats and may encounter hypoxic conditions, and Pachygrapsus crassipes, which inhabits rocky zones and is not subjected to conditions of reduced oxygen availability. Rates of oxygen consumption (Vo2) and lactate production were used as indices of aerobic and anaerobic metabolic rate, respectively.Both species showed similar capacities for anaerobic energy production during activity. Activity was vigorous, of short duration, and accompanied by a rapid rise in haemolymph lactate levels.Activity in specimens of P. crassipes was primarily anaerobic. Burst running speed was constant within an ecologically relevant range of temperature. Aerobic metabolic rate, duration of activity, and maintenance of burst speed were positively correlated with temperature.Individuals of P. crassipes had a decreased metabolic rate during ai...
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
