Critical evaluation of sediment turnover estimates for Callianassidae (Decapoda: Thalassinidea)
Rowden AA and Jones MB. 1993. Critical evaluation of sediment turnover estimates for Callianassidae (Decapoda: Thalassinidea). Journal of Experimental Marine Biology and Ecology. 173:265-272
Members of the decapod family Callianassidae influence sediment dynamics and ecosystem function via their bioturbation activities. The latter is currently assessed by measures of sediment turnover rates which are collected, calculated and expressed by different methods. Some estimates, particularly extrapolations which do not consider the influence of temperature, population structure and expulsion behaviour, are likely to be significantly over under estimates of sediment turnover. Therefore, published values of sediment turnover by the Callianassidae need to be treated with caution and are not strictly comparable. In view of the need for assessing the relative importance of callianassid bioturbation, it is suggested that attempts should be made to standardize the measurement of sediment turnover rate to allow future comparisons to be made with confidence. Abstract provided by author.
- Type
- Journal Article
- Authors
- Rowden, Ashley; Jones, Malcolm
- Units
- BISC
- Keywords
- Biogenic activity, bioturbation, Callianassa, Callianassidae, comparison, Crustacean, Decapod, Deposit feeding, Direct Entrapment, Ecosystem, Expulsion, Extrapolations, Levelling, Quantity, Sediment dynamics, Sediment turnover, Space, standardization, time, Tracer Particle