In pbs-assess/PACea: An R package of Pacific ecosystem information to help facilitate an ecosystem approach to fisheries management

BCCM

British Columbia Continental Margin (BCCM) model

Physical biogeochemical oceanographic model

• Peña et al. (2019), Deep-Sea Research II.

• Regional Ocean Modelling Systen (ROMS)

• curvilinear grid at 3 km x 3 km resolution

• we interpolate to regular r colorize("2 km x 2km grid")

• r colorize("161,025 cells", "red")

• monthly from 1993-2019

• huge filesizes required hosting outputs on Zenodo not GitHub

Built in plotting - primary production in April 2018

plot(bccm_primaryproduction_full())

Built in plotting - primary production throughout 2018

plot(bccm_primaryproduction_full(), months = c(1, 4, 7, 10))

{width=60%}

png(paste0(here::here(), "/talks/talks-manual-figures/bccm-four-panel-plot.png"),
    width = 670,   # 670 matches size from running from a chunk
    height = 480,  # 480 for 2x2
    res = 100)     # default is 72, actually increases font size, so tweak as desired
plot(bccm_primaryproduction_full(),
     months = c(1, 4, 7, 10))
dev.off()

Available variables

The variables are:

• dissolved oxygen concentration
• pH
• salinity
• temperature
• depth-integrated phytoplankton
• depth-integrated primary production.

For applicable variables these are given for

• sea surface
• 0-40 m integration
• 40-100 m integration
• 100 m to the sea bottom
• sea bottom.

pbs-assess/PACea documentation built on April 17, 2025, 11:36 p.m.