Gas Bubbles in the Sea: A Review and Model Proposals
Abstract
The literature pertaining to both free bubbles (pt 1) and bubbles associated with fish anotomy (pt 2) is reviewed with particular emphasis on their distributions in the sea and influencing factors. An attempt is made to compact the results to date into simple, mostly empirically-based models. Some of the models proposed contrast with those previously used. For example, depth dependence of free-bubble concentrations is proposed to be simply influenced by pressure, which causes a (depth) -2 /3 relationship for Medwin's 1970 data (radius> 60 micrometres) for depths greater than 10 metres, while at shallower depths the dependence is less. In refitting data of fish-bladder volume to be proportional to(length) N, N was strongly dependent on the type of fish, and in all cases, N was larger than previously accepted. Finally, a free-bubble concentration-function model is proposed which is a linear sum of functions of a single generating mechanism (waves, rain, photosynthesis, etc.). Although this last step may be premature from the standpoint of our present knowledge of the subject, it supplies a basic structure and aids in clarifying where knowledge is lacking.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1975
- Accession Number
- AD1114344
Entities
People
- Leslie A. Foster
- Robert B. Williams
Organizations
- SACLANT ASW Research Centre