Stomach sample composition for wild and hatchery coho smolts in the Campbell River estuary during springs of 2007–2009.

<p>Stomach sample composition for wild and hatchery coho smolts in the Campbell River estuary during springs of 2007–2009.</p

The mean stomach fullness of wild and hatchery coho salmon smolts in the Campbell River estuary and near-shore area from 2007 to 2009, with standard error.

<p>The mean stomach fullness of wild and hatchery coho salmon smolts in the Campbell River estuary and near-shore area from 2007 to 2009, with standard error.</p

Zooplankton, phytoplankton, and return rates of coho salmon jacks (red bars) and adults (blue bars) released during 2007 and 2008.

<p>Zooplankton, phytoplankton, and return rates of coho salmon jacks (red bars) and adults (blue bars) released during 2007 and 2008.</p

Health parameters of early and late release coho from the Seymour River Hatchery during April 2007, expressed as group mean (SD).

<p>The results for the Quinsam smolts can be found in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0012423#pone.0012423-Chittenden1" target="_blank">[18]</a>.</p

The study area, including the Seymour and Quinsam Rivers, Discovery Passage and the Strait of Georgia (SOG), Indian Arm and Burrard Inlet.

<p>Release locations are denoted by an asterix (*).</p

Acoustically tagged wild (W) and hatchery (H) coho salmon released at the Quinsam Hatchery (Rel 2006) and Seymour Hatchery (Rel 2007), including the number released (N Rel) and the number and proportion of smolts detected in the respective estuaries (N Est, % Est).

<p>Acoustically tagged wild (W) and hatchery (H) coho salmon released at the Quinsam Hatchery (Rel 2006) and Seymour Hatchery (Rel 2007), including the number released (N Rel) and the number and proportion of smolts detected in the respective estuaries (N Est, % Est).</p

Zooplankton, phytoplankton and temperature in Discovery Passage during the 2009 monitoring period.

<p>Zooplankton, phytoplankton and temperature in Discovery Passage during the 2009 monitoring period.</p

Groups of coho salmon from the Quinsam Hatchery tagged with coded-wire tags during 2006–2008, including the number (N) and proportion of returning (Ret) jacks (J) and adults (A) for each release group (Rel).

<p>The asterix (*) denotes the 30 g body mass release group of 2008, whereas all the other release groups had a mean mass of approximately 25 g.</p

The relationship between chlorophyll <i>a</i> and phytoplankton abundance during 2009.

<p>The relationship between chlorophyll <i>a</i> and phytoplankton abundance during 2009.</p