The use of trawl, grab and camera in estimating marine benthos
- 1 February 1956
- journal article
- research article
- Published by Cambridge University Press (CUP) in Journal of the Marine Biological Association of the United Kingdom
- Vol. 35 (2), 419-429
- https://doi.org/10.1017/s0025315400010249
Abstract
Certain animals of the epifauna, because of their distribution over the bottom, are often difficult to sample quantitatively. They may occur as individuals widely dispersed over a large area, or they may be present in dense aggregations which themselves have a patchy distribution. In the past, workers have tried to estimate the numbers of such animals by the combined use of trawls and grabs of various types. The post-war development of underwater photography suggests that the camera will be a useful additional tool (e.g. Vevers, 1951, 1952). During the testing of an underwater camera from Aberdeen an opportunity was taken to compare the estimates of some of the larger epifauna from grab and trawl hauls with estimates derived from underwater photographs. The results are described in this paper.This publication has 2 references indexed in Scilit:
- A photographic survey of certain areas of sea floor near PlymouthJournal of the Marine Biological Association of the United Kingdom, 1952
- Photography of the sea floorJournal of the Marine Biological Association of the United Kingdom, 1951