Use different bait species in traps

How is the evidence assessed?

Study locations

Key messages

  • One study examined the effects of using different bait species in traps on subtidal benthic invertebrates. The study took place in the South Pacific Ocean (New Zealand).




  • Unwanted catch abundance (1 study): One replicated, controlled study in the South Pacific Ocean found that the type of bait used in fishing pots did not change the amount of unwanted invertebrates caught.

About key messages

Key messages provide a descriptive index to studies we have found that test this intervention.

Studies are not directly comparable or of equal value. When making decisions based on this evidence, you should consider factors such as study size, study design, reported metrics and relevance of the study to your situation, rather than simply counting the number of studies that support a particular interpretation.

Supporting evidence from individual studies

  1. A replicated, controlled study in 2014–2015 in two seabed areas in the South Pacific Ocean, New Zealand (Major et al. 2017) found that the type of bait used in the New Zealand scampi Metanephros challengeri pot fishery did not change the amount of unwanted invertebrates caught, in either area. The amount of unwanted invertebrates caught was similar in pots baited with mackerel Scomber australasicus, barracouta Thyrsites atun, or squid Nototodarus sloanii (abundance data not shown). In two areas, three bait species were tested: mackerel vs squid, and barracouta vs squid (mackerel vs barracouta not tested). At Chatham Rise from November–December 2014, traps baited with either mackerel or squid (equal number of traps) were tested during three deployments (three 500 m lines of 30 traps/deployment). At Cape Palliser in April 2015, traps baited with either barracouta or squid (equal number of traps) were tested during three deployments (one 500 m line of 30 traps/deployment). Traps were recovered after 18 hours, and unwanted invertebrate catch identified and counted.

    Study and other actions tested
Please cite as:

Lemasson, A.J., Pettit, L.R., Smith, R.K. & Sutherland, W.J. (2020) Subtidal Benthic Invertebrate Conservation. Pages 635-732 in: W.J. Sutherland, L.V. Dicks, S.O. Petrovan & R.K. Smith (eds) What Works in Conservation 2020. Open Book Publishers, Cambridge, UK.

Where has this evidence come from?

List of journals searched by synopsis

All the journals searched for all synopses

Subtidal Benthic Invertebrate Conservation

This Action forms part of the Action Synopsis:

Subtidal Benthic Invertebrate Conservation
Subtidal Benthic Invertebrate Conservation

Subtidal Benthic Invertebrate Conservation - Published 2020

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