Starting with the description of field procedures used in evaluating the performance of a scallop dredge, and how the age structure of fishing fleets change with time, the main paper here is a discussion of the indirect impacts of trawls and dredges on the bottom fauna of fishing grounds. It follows on from much earlier personal experience with observing and photographing dredge and trawl tracks from submersibles: a publication mentioning the latter being often cited as an early example.
in inverse chronological order.
Compilation and synthesis of available scientific information on the impacts of overfishing, destructive fishing, and illegal, unreported, and unregulated (IUU) fishing on marine biodiversity and habitats.
Prepared by William Cheung (Executive Summary, Sections on Unsustainable Fishing and IUU Fishing) and John Caddy (Destructive Fishing). This report is a working document which has not yet been cleared nor endorsed by UNEP, the CBD Secretariat, or FAO. Its content is the sole responsibility of the authors.
The age structure of fishing fleets and its relevance for reconstructing past fishery trends and forecasting.
Caddy, J.F. (1993). In: Proc. Int'l Symp. on Management of exploited fish. Lowell Wakefield Fisheries Symposium; Alaska Sea Grant 1993. P475-492.
Destructive fishing practices by bottom gears: a broad review of research and practice.
J.F. Caddy and J.C. Seijo. Vol. 19, núm. especial, septiembre de 2011 Ciencia Pesquera
Efficiency and Selectivity of the Canadian Offshore Scallop Dredge.
J.F. Caddy. Fisheries Research Board of Canada. Biological Station, St. Andrews, N. B. International Council for the Exploration of the Sea. C.M. 1971/K:25 Shellfish and Benthos Committee.