Incorporating surrogate species and seascape connectivity to improve marine conservation outcomes

  • Published source details Olds A.D., Connolly R.M., Pitt K.A., Maxwell P.S., Aswani S. & Albert S. (2014) Incorporating surrogate species and seascape connectivity to improve marine conservation outcomes. Conservation Biology, 28, 982-991.


This study is summarised as evidence for the following.

Action Category

Cease or prohibit all types of fishing in a marine protected area

Action Link
Marine Fish Conservation
  1. Cease or prohibit all types of fishing in a marine protected area

    A replicated, paired, site comparison study in 2011 of six mixed reef, mangrove and seagrass lagoon areas in the Soloman Sea, Soloman Islands (Olds et al. 2014) found that no-take marine reserves protected for eight years had higher fish abundances than unprotected fished sites for four of six species, but the effect differed with type and proximity of different habitats. Fish density of four of six species was higher in at least two of the five habitat categories in no-take reserves compared to fished areas (bumphead parrotfish Bolbometopon muricatum: 2–6 vs 0, mangrove snapper Lutjanus argentimaculatus: 4–5 vs 0–1, goldlined rabbitfish Siganus lineatus: 5–31 vs 0–5, ringtail surgeonfish Acanthurus blochii: 5–15 vs 1–3 fish/200 m2). For two species, density was similar between areas in four of the habitats and was lower in reserves in one (monocle bream Scolopsis spp: 5 vs 8, dash-and-dot goatfish Parapeneus barberinus: 1 vs 7 fish/200 m2). In addition, the authors reported increases in abundance in reserves of a total of 18 fish species (data presented in the Supporting Information). Three small, community-based no-take reserves (established eight years) designed for bumphead parrotfish, and three paired unprotected fished locations were surveyed in April-June 2011. At each location, fish over 5 cm length were recorded by underwater visual census (5 × 200 m2 transects) in mangrove, seagrass and coral reef habitats. Fish data were assigned to one of five categories: mangroves near coral, coral near mangroves, isolated coral, coral near seagrass and seagrass near coral.

    (Summarised by: Khatija Alliji)

Output references
What Works 2021 cover

What Works in Conservation

What Works in Conservation provides expert assessments of the effectiveness of actions, based on summarised evidence, in synopses. Subjects covered so far include amphibians, birds, mammals, forests, peatland and control of freshwater invasive species. More are in progress.

More about What Works in Conservation

Download free PDF or purchase
The Conservation Evidence Journal

The Conservation Evidence Journal

An online, free to publish in, open-access journal publishing results from research and projects that test the effectiveness of conservation actions.

Read the latest volume: Volume 19

Go to the CE Journal

Discover more on our blog

Our blog contains the latest news and updates from the Conservation Evidence team, the Conservation Evidence Journal, and our global partners in evidence-based conservation.

Who uses Conservation Evidence?

Meet some of the evidence champions

Endangered Landscape Programme Red List Champion - Arc Kent Wildlife Trust The Rufford Foundation Save the Frogs - Ghana Bern wood Supporting Conservation Leaders National Biodiversity Network Sustainability Dashboard Frog Life The international journey of Conservation - Oryx British trust for ornithology Cool Farm Alliance UNEP AWFA Butterfly Conservation People trust for endangered species Vincet Wildlife Trust