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. 2018 May 30;6:e4936. doi: 10.7717/peerj.4936

Figure 2. Results of the 14-day chronic test using the benthic copepod Quinquelaophonte sp. exposed to sediments.

Figure 2

Three endpoints were assessed for the toxicity of sediments from the Ahuriri Estuary and reference site, Waitangi estuary. (A) Survival. (B) Total offspring hatched during the test. (C) Potential offspring (eggs in female pouch). Site codes: Waitangi Estuary (Wa), Old Tutaekuri Estuary (OT Est), Humber Estuary (Hum Est), Old Tutaekuri Riverbed (OT River), Humber Drain (Hum Dr). Diagonal lined bars: control site (Waitangi), white bar: laboratory control sediment, black bars: tested sites. Significance levels: ‘*’ p < 0.05, ‘**’p < 0.001 Dunnett’s multiple comparison against the control.