Method Stated Mesh Size

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Supplementary Figure 1: Most people have heard of jellyfish: they feature in our children’s artwork (a) and as the subject matter of cartoons in our newspapers (b) as well as headlines. They are arguably the most aesthetic members of the zooplankton (c, Rhopilema hispidum; d, Aequorea sp; e, Carybdea branchi) and can at times form problem blooms (f, Chrysaora fulgida off Walvis Bay). All images are copyright and reproduced here with permission: a – Martina Mianzan, b – WWF southern Africa, c -d – Lisa Gershwin, e – Geoff Spiby, f – Ms G. Katte.
Supplementary Figure 2: Pie chart showing the relative numbers of publications (1993 – 2013) in which different semaeostome genera are included in the titles of peer-reviewed publications. Data downloaded from Zoological Record. N = 346.
Supplementary Table 1a: What is a dip-net? Numbers of published papers (1982-2013) that have examined the gut-contents of jellyfish (Medusozoa and planktic Ctenophora), and which have either stated the mesh size of the dip-nets used to collect individual specimens, or that have reported on the mesh size of sieves subsequently used to screen ingested organisms. The failure of authors to report these details, given that jellyfish can eat a wide size range of prey items, requires addressing in the future and rather begs the question of what a dip net is. The literature has been carefully scrutinized and ONLY papers that dealt with individually caught specimens have been included (Supplementary Table 1b).


Stated Mesh Size

Mean Mesh Size (μm)

Stated Sieve Size

Mean Sieve Mesh Size (μm)

Scoop, dip or other net

NO - 16


YES - 2


NO – 14


YES - 2


YES – 0


NO - 2

Jar, bucket or similar solid collector



NO – 6


YES - 4


References used to support the construction of Supplementary Table S1a
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