test.md
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Introduction
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The Ocean Health Index (Halpern et al., 2012; Selig et al., 2013) derives most of its pressures from Halpern et al. (2008)...
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Food Provision: Fisheries
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Amount of sustainable wild-caught seafood compared to the max sustainable
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x_{FIS} = (\prod_{g=1}^{6} SS_{i,g}^{C_{i,g}})^\frac{1}{\sum{C_{i,g}}}
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Variables:
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- \(SS\): stock status score, based on B/Bmsy and an underharvest penalty adjustment
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- \(C\): total catch
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- \(i\): OHI reporting region
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- \(g\): level of taxonomic grouping (ISSCAAP)</small>
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Results
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Hats off to the top scoring region of **Heard and McDonald Islands** with a score of 90.29! The top 10 scoring regions (of 221 globally) are largely comprised of unpopulated islands (see Table 1).
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|Region|Score|
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|:-----|----:|
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|Heard and McDonald Islands|90.29|
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|Ile Europa|89.48|
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|Bassas da India|88.17|
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|Howland Island and Baker Island|85.89|
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|Juan de Nova Island|83.84|
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|Glorioso Islands|83.79|
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|Kerguelen Islands|82.84|
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|Northern Saint-Martin|82.58|
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|Nauru|82.18|
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|Seychelles|81.93|
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The global average of 68 consists of food provision scores being lowest (Mariculture = 26; Fisheries = 40), but Artisanal Fishing Opportunities highest (98) (see Figure 1).
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Note that the `echo = FALSE` parameter was added to the code chunk to prevent printing of the R code that generated the plot.
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Github Markdown
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To get github friendly Markdown document for cleanly tracking changes to document in Github, put the following output first:
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output:
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md_document:
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variant: "markdown_github"
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NOTE: You need to run this **LAST** though, since knitting other formats wipes out the `test_files` directory. To return to the Knit button having other options (HTML, PDF, Word), move this output type below the first option.
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References
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<!-- placeholder for References in toc -->
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Halpern, B. S., Longo, C., Hardy, D., McLeod, K. L., Samhouri, J. F., Katona, S. K., … Zeller, D. (2012). An index to assess the health and benefits of the global ocean. *Nature*. doi:[10.1038/nature11397](http://dx.doi.org/10.1038/nature11397)
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Halpern, B. S., Walbridge, S., Selkoe, K. A., Kappel, C. V., Micheli, F., D’Agrosa, C., … Watson, R. (2008). A Global Map of Human Impact on Marine Ecosystems. *Science*, *319*(5865), 948–952. doi:[10.1126/science.1149345](http://dx.doi.org/10.1126/science.1149345)
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Selig, E. R., Longo, C., Halpern, B. S., Best, B. D., Hardy, D., Elfes, C. T., … Katona, S. K. (2013). Assessing Global Marine Biodiversity Status within a Coupled Socio-Ecological Perspective. *PLoS ONE*, *8*(4), e60284. doi:[10.1371/journal.pone.0060284](http://dx.doi.org/10.1371/journal.pone.0060284)