A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Term	Meanings
CAESS	Catch and Effort Statistical System, as used by Fisheries WA to record catches by commercial fishers.
Catch per unit of effort	The number or weight of fish caught by a unit of fishing effort; e.g. a catch of 80 kg per hour as the result of fishing activities by a particular commercial fisher/boat. CPUE is often used as a measure of fish abundance.
Catch returns	Obligatory records kept by fishers giving details of their catch and fishing effort.
CDR	Catch and Disposal Record
CELR	Catch, Effort and Landing Return
CFL	Commercial Fisherman's Licence
Codend	The closed end of a trawl net.
Commercial fishing licence	A licence authorising a person to engage in commercial fishing.
Commercial fishing	Fishing for a commercial purpose, i.e. to sell the catch.
Commercial value	The landed value of the catch to fishers.
Continental shelf	Section of the seabed from the shore to the edge of the continental slope - commonly taken to be the 200 m depth contour (isobath).
Continental slope	Region of the outer edge of a continent between the generally shallow continental shelf and the deep-ocean floor, usually demarcated by the 200 m isobath.
Cost recovered fishery	A financial contribution by the participants in a fishery towards the cost of its management. In WA, six major fisheries contribute to full cost recovery. Another 30 minor fisheries partially contribute to costs.
CPUE	Catch Per Unit Effort
CSIRO	Commonwealth Scientific and Industrial Research Organisation
CSIRO AAHL	CSIRO Animal Health Laboratory ( Geelong)
DAFF	Department of Agriculture, Fisheries & Forestry (Commonwealth)
DBIF	Development and Better Interest Fund
DEH	Department of Environment and Heritage
Demersal trawling	Operation of a trawl net designed for use on or near the bottom of the sea or lake, e.g. otter trawl.
Demersal	Found on or near the bottom of the sea or lake; cf. Pelagic.
Depletion [stock depletion]	Reducing the abundance of members of a fish stock through fishing.
Development [of fisheries]	Transition from exploratory and experimental fishing, to the establishment of commercial activities and markets, with the ultimate goal of sustained long-term fishing.
Dinghy	A licensed fishing boat less than 6.5 metres, usually attached to a lead or mother boat in a fishing unit.
Discards	Catch that is returned to the water, either dead or alive.
Dory	The common name for a dinghy when it is used in conjunction with a mother boat for troll lining when targeting Spanish mackerel.
Driftnet	A gillnet suspended by floats so that it fishes the top few metres of the water column. Also called a pelagic gillnet.
Dropline	An unattached fishing line with one or more hooks, held vertically in the water column with weights and marked with a buoy. Generally used on the continental shelf and slope. Several droplines may be operated by a vessel, using either manually or mechanically operated reels.

Derived from: Department of Fisheries publications; Fishery Status Reports. Resource Assessments of Australian Commonwealth Fisheries. 1998. Bureau of Resource Sciences, Department of Primary Industries and Energy, Canberra ACT; and Henderson's Dictionary of Biological Terms, published by Longman Scientific and Technical Press, 1989 (10th edition).