Assessing Risk Communication in the Pet and Aquarium Trade

An Analysis of Outreach and Engagement Efforts


The international pet and aquarium trade, and intentional or unintentional release of those organisms by individuals, has contributed to the establishment of species in areas where they are not native (Duggan, 2010; Patoka et al., 2018). These releases may have unintended but detrimental consequences to local ecosystems and economies. Little research has been conducted on trade as a non-native species vector, which makes communicating the risk of non-native pet release difficult. However, a wide range of outreach campaigns attempt to address both repercussions of and alternative actions to pet release.


Project Objectives


Insights from the Literature


Focal Campaigns


Campaign Analysis Methods



Outreach Materials

Sixty-one unique outreach materials were collected and analyzed from the eight focal campaigns and from 11 other pet release campaigns which met our inclusion criteria (i.e., within the United States, available outreach materials).

Each material was assessed using a matrix of questions to determine the following messaging elements: species and audience focus, whether the audience was instructed to do something or not do something (i.e., action orientation), message framing, order of listed alternatives to dumping/release, imagery style, and whether the material implied social pressure to act or a risk to inaction.

Examples of campaign outreach materials. Obtained on campaign websites or directly from campaign affiliates. Click the right arrow to view images.

Matrix of Questions Used to Assess Outreach Materials

Focus of material?

Target Species, Intended Audience

What action is being asked?

"Do This" or "Don't Do This"

How was the message framed? Is some entity losing or gaining?

Loss Content, To Whom?, Gain Content, To Whom?

Was a recommendation to release suggested? What order were they listed in?

Order in which recommendation/s were listed on the material.

Imagery style?

Theme Design, Illustration, Photography

What other messaging details were used?

Species Education, Story Telling, Norms/Social Pressure, Agency/Empowerment, Threat/Risk



Future Campaign Considerations


Thank you to all the campaign affiliates, partners, and colleagues who participated in this study.

This project was a co-effort between the U.S. Geological Survey and the U.S. Fish and Wildlife Service (funding provided by USFWS).

All photographs by U.S. Geological Survey unless otherwise noted

Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.


Explore the Data

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Banha, F., Diniz, A., Anastácio, P.M. (2019). Patterns and drivers of aquarium pet discharge in the wild, Ecological Indicators, (106) 105513.

Crowell‐Davis, S.L. (2008). Motivation for pet ownership and its relevance to behavior problems. Compendium, 3(8), 423-4, 427-8.

Duggan, I.C. (2010). The freshwater aquarium trade as a vector for incidental invertebrate fauna. Biological Invasions, 12(11), 3757–3770.

Duggan, I.C., Rixon, C.A.M., and MacIsaac, H.J. (2006). Popularity and propagule pressure:  determinants of introduction and establishment of aquarium fish. Biol Invasions, (8) 377-82. 

Holmberg  R.J.,  Tlusty  M.F.,  Futoma  E.,  et  al.  (2015) The  800-  pound  grouper  in  the  room:  asymptotic  body  size  and  invasiveness  of  marine aquarium fishes. Mar Policy, 35, 7–12. 

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Maloney, E.K., Lapinski, M.K., & Witte, K. (2011). Fear Appraisals and Persuasion: a review and update of the extended parallel process model. Social and Personality Compass. 5(4): 206-19

Patoka, J. ř., Magalhães, A.L.B., Kouba, A., Faulkes, Z., Jerikho, R., & Vitule, J.R.S. (2018). Invasive aquatic pets: failed policies increase risks of harmful invasions. Biodiversity and Conservation, 27(11), 3037–3046.

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