Construct · 1 fields · 1 citations

high-grading: a standalone construct

One name. One construct. A landmark on the map.

● anchor · a standalone construct Nearest construct by meaning·not indexed
high-grading1 CONSTRUCTCatch high-gradingBATSLEER · DISCARD

A single standalone construct; nearby constructs are located against it in the Collider. Tap a field for its definition, unit, and measures.

Fisheries management

Discard low-value fish to keep high-value

In fisheries, high-grading is discarding already-caught fish of lower value, whether too small, the wrong species, or lower price, so that limited quota or hold space is filled with the most valuable catch. It is the same selective-retention logic as in mining and forestry, realised by throwing back the cheap units rather than leaving them in the ground, and it wastes fish because most discards die. Batsleer and colleagues' High-grading and over-quota discarding in mixed fisheries models the behaviour under quota constraints. The referent is once more the keeping of only the highest-value units and the discarding or degrading of the rest, the same construct that appears in ore and in timber.[1]

Unit
The share of catch discarded to retain higher-value fish
Recovery means
Discarded fish largely do not survive, so the removed value is typically lost to the stock
Measured by
Estimated from discard rates by size and value class relative to retained catch under quota and price incentives

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Nearby constructs

case2 fields · 3 citationsjingle · one word, two constructscatch2 fields · 3 citationsjingle · one word, two constructsconstruct6 fields · 7 citationsjingle · one name, six constructs

References

  1. Batsleer, J., Hamon, K. G., van Overzee, H. M. J., Rijnsdorp, A. D., & Poos, J. J. (2015). High-grading and over-quota discarding in mixed fisheries. Reviews in Fish Biology and Fisheries, 25(4), 715–736. https://doi.org/10.1007/s11160-015-9403-0

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