Educate the public to improve behaviour towards marine and freshwater mammals

Overall effectiveness category Likely to be beneficial
Number of studies: 3
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How is the evidence assessed?

Effectiveness

60%
Certainty

40%
Harms

0%

Calculating overall effectiveness category

Background information and definitions

Marine and freshwater mammals face a range of threats from humans. This may include exploitation through hunting or persecution if the mammal is perceived as a threat or nuisance. Education programmes may be designed to educate the public about the importance of marine and freshwater mammals and their conservation to reduce behaviours that are a threat to mammals and to encourage positive behaviours. This may involve a variety of media from broadcasting and social media through to educational events. This may also include educating the public during mammal watching tours. However, careful implementation may be required as unregulated tours can cause considerable disturbance to marine and freshwater mammals (Zapetis et al. 2017).

Zapetis M.E., Samuelson M.M., Acosta N. & Kuczaj S. (2017) Evaluation of a developing ecotourism industry: whale watching in the Gulf of Tribugá, Colombia. International Journal of Comparative Psychology, 30.

Study locations

Key messages

Three studies evaluated the effects of educating the public to improve behaviour towards marine and freshwater mammals. One study was in each of the North Atlantic Ocean (USA), the Sundarbans mangroves (Bangladesh) and the South Pacific Ocean (Peru).

COMMUNITY RESPONSE (0 STUDIES)

POPULATION RESPONSE (0 STUDIES)

BEHAVIOUR (3 STUDIES)

Change in human behaviour (3 studies): Three before-and-after studies in the North Atlantic Ocean, the Sundarbans mangroves and the South Pacific Ocean found that after educational whale-watching tours or an educational exhibition, participants were more willing to change their behaviour to support marine conservation, to donate money to marine conservation, or to cut their fishing nets to save entangled dolphins.

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

A before-and-after study in 2011 of whale-watching tours in the North Atlantic Ocean, off the coast of Massachusetts, USA (Harms et al. 2013) found that after educational tours, 40 of 544 (7%) participants were more willing to change their behaviour to support marine conservation than before the tours. After the tours, 40 of 544 participants (7%) stated that they were more willing to change their behaviour to protect the marine environment and/or contribute money to support marine conservation than before the tours. A total of 486 participants (89%) stated that their willingness to change their behaviour had not changed, and 18 participants (3%) were less willing to change their behaviour. A total of 544 tourists completed questionnaires before and after whale-watching tours in June–August 2011. Two tour operators conducted the tours, each with 1–2 vessels running 2–3 trips/day. Three statements in the questionnaire assessed behavioural intentions (actual behavioural change was not assessed).
Study and other actions tested
Referenced paper
Harms M., Asmutis-Silvia R. & Rosner A. (2013) Whale watching: more than meets the eyes. Whale and Dolphin Conservation (WDC) report, WDC Report to NOAA’s Fisheries Northeast Region Program Office (NERO), Award Number NA11NMF4720240, 113pp.
A before-and-after study in 2011–2013 of 12 villages near the Sundarbans mangroves, Bangladesh (Mansur et al. 2014) reported that after an educational exhibition, the number of fishers willing to cut their fishing nets to save entangled freshwater dolphins increased. Results are not based on assessments of statistical significance. After the exhibition, 98% of fishers stated that they were willing to cut their nets to save entangled dolphins, compared to 83% before the exhibition. A month-long boat-based educational exhibition visited villages adjacent to three sanctuaries for Ganges River dolphins Platanista gangetica and Irrawaddy dolphins Orcaella brevirostris. Trained interpreters guided visitors through the exhibition comprising informative panels, interactive displays and educational films about dolphins. In 2011–2013, yearly interviews were conducted in 12 villages visited by the exhibition 1–3 times (total 603 participants).
Study and other actions tested
Referenced paper
Mansur E.F., Akhtar F. & Smith B.D. (2014) An educational outreach strategy for freshwater dolphin conservation: measuring the results. Pages 17-24 in: R.K. Sinha & B. Ahmed (eds.) Rivers for Life - Proceedings of the International Symposium on River Biodiversity: Ganges-Brahmaputra-Meghna River System. International Union for Conservation of Nature.
A before-and-after study in 2014 of whale-watching tours in the South Pacific Ocean, off the coast of northern Peru (García-Cegarra et al. 2017) found that after educational tours, a greater number of participants were willing to change their behaviour towards the marine environment or donate money for marine conservation than before the tours. After the tours, a greater number of 196 participants were willing to change their behaviour to protect the marine environment (130 participants) than before the tours (114 participants). The same was true for the number of participants willing to donate money to support marine conservation (before: 42 participants; after: 54 participants). A total of 196 tourists completed questionnaires before and after educational whale-watching tours lasting an average of 3 h in August–September 2014. Three boats (each with a capacity of 20 people) operated the tours targeting humpback whales Megaptera novaeangliae. Two of 10 statements in the questionnaire assessed behavioural intentions (actual behavioural change was not assessed).
Study and other actions tested
Referenced paper
García-Cegarra A.M. & Pacheco A.S. (2017) Whale-watching trips in Peru lead to increases in tourist knowledge, pro-conservation intentions and tourist concern for the impacts of whale-watching on humpback whales. Aquatic Conservation: Marine and Freshwater Ecosystems, 27, 1011-1020.

Please cite as:

Berthinussen, A., Smith, R.K. and Sutherland, W.J. (2021) Marine and Freshwater Mammal Conservation: Global Evidence for the Effects of Interventions. Conservation Evidence Series Synopses. University of Cambridge, Cambridge, UK.

Where has this evidence come from?

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This Action forms part of the Action Synopsis:

Marine and Freshwater Mammal Conservation

Related Actions

Actions	Effectiveness	Studies	Category
Involve local communities in marine and freshwater mammal conservation projects Action Link	No evidence found (no assessment)	0	Synopsis Link
Engage policymakers to make policy changes beneficial to marine and freshwater mammals Action Link	Unknown effectiveness (limited evidence)	1	Synopsis Link
Educate the public to improve behaviour towards marine and freshwater mammals Action Link	Likely to be beneficial	3	Synopsis Link