英文原页：fao_areas()
说明
该函数列出由渔业统计协调工作组（CWP）划定、用于统计的FAO主要渔区：19个海洋渔区和各大洲的内陆水域。每个渔区给出代码、名称、所属大洋、数据最后一年的渔获量，以及FAO官方地图的链接。plot = TRUE时，把标有渔区代码的海洋渔区世界地图保存为figures/png/area/fao_major_areas.png。
English
This function lists the FAO major fishing areas for statistical
purposes, defined by the Coordinating Working Party on Fishery
Statistics (CWP): the 19 marine areas and the inland waters of each
continent. For each area it gives its code, name, ocean, catch in the
last year of the data and the link to its official FAO map. With
plot = TRUE, a world map of the marine areas labelled with
their codes is saved as
figures/png/area/fao_major_areas.png.
用法
fao_areas(
data = NULL,
plot = TRUE,
table = TRUE,
lang = NULL,
pptx = fao_setting("pptx"),
plot_show = fao_setting("plot_show")
)参数
data-
load_fao_data()返回的FAO渔获数据，用于计算最后一年的渔获量。默认为NULL，即最新版本（load_fao_data()）。English
FAO catch data as returned byload_fao_data(), used for the catch of the last year. Default is NULL, the latest release (load_fao_data()). plot-
逻辑值。为TRUE（默认）时，世界地图保存在figures/png/area/。
English
A logical value. If TRUE (default), the world map is saved infigures/png/area/. table-
逻辑值。为TRUE（默认）时，表格保存在tables/。
English
A logical value. If TRUE (default), the table is saved intables/. lang-
图表文字和名称的语言：“en”（英文）、“zh”（中文）或”both”（中英双语）。默认为NULL，即使用
fao_settings()设置的语言（未更改时为”en”）。English
The language of the map text and names: “en” (English), “zh” (Chinese) or “both” (Chinese and English). Default is NULL, which uses the language set withfao_settings()(“en” unless changed). pptx-
逻辑值。为TRUE时，地图还另存为可编辑的PowerPoint文件，保存在figures/pptx/area/。默认为
fao_settings()中的设置（未更改时为FALSE）。English
A logical value. If TRUE, the map is also saved as an editable PowerPoint file infigures/pptx/area/. Default is the value set withfao_settings()(FALSE unless changed). plot_show-
逻辑值。为TRUE时，每张图在保存的同时也画在绘图窗口中（例如RStudio的Plots窗格），便于立即查看。默认为FALSE，可以用
fao_settings(plot_show = TRUE)为所有函数统一更改。无论是否显示，图表都会保存为文件（plot = TRUE）。English
A logical value. If TRUE, each chart is also drawn in the plot window (e.g. the Plots pane of RStudio) as it is saved, to look at it at once. Default is FALSE, which can be changed for all functions withfao_settings(plot_show = TRUE). The charts are saved as files (plot = TRUE) either way.
返回值
以不可见方式返回一个数据框，每个渔区一行：area_code、name_en、name（所选语言的名称）、type（“marine”海洋或”inland”内陆）、ocean（所属大洋）、catch_last_year（最后一年渔获量，吨）、share_pct（占当年全球渔获量的百分比，包括海洋和内陆）和fao_map（FAO官方地图的链接）。地图保存在属性”plot”中。
English
Invisibly, a data frame with one row per area:
area_code, name_en, name (in the
chosen language), type (“marine” or “inland”),
ocean, catch_last_year (tonnes),
share_pct (percentage of the world catch of the year,
marine and inland) and fao_map (link to the official FAO
map). The map is in the attribute “plot”.
详细说明
官方地图是FAO渔区地图页面（https://www.fao.org/fishery/docs/maps/Default.htm）上的GIF图片；本包只提供链接，不复制这些图片。世界地图根据本包自带的渔区边界（inst/extdata/FAO_AREAS_CWP.shp，FAO，CC
BY
4.0）绘制，投影和中心经度按fao_settings()的设置。单个渔区及其分区的地图见fishing_area_map()。
English
The official maps are the GIF images of the FAO fishing area maps
page (https://www.fao.org/fishery/docs/maps/Default.htm); the
package links to them and does not copy them. The world map is drawn
from the area boundaries bundled with the package
(inst/extdata/FAO_AREAS_CWP.shp, FAO, CC BY 4.0), in the
projection and central longitude set with fao_settings().
fishing_area_map() maps one area with its subareas.
参考文献
CWP (Coordinating Working Party on Fishery Statistics). CWP Handbook of Fishery Statistics: Main water areas (FAO major fishing areas). Rome: FAO. https://www.fao.org/cwp-on-fishery-statistics/handbook/general-concepts/main-water-areas/en/
FAO. Fishing area maps. In: FAO Fisheries and Aquaculture Division [online]. Rome. https://www.fao.org/fishery/docs/maps/Default.htm
FAO (2024). FAO Major Fishing Areas for Statistical Purposes. In: FAO Fisheries and Aquaculture Division [online]. Licence: CC-BY 4.0. https://www.fao.org/fishery/geonetwork?uuid=ac02a460-da52-11dc-9d70-0017f293bd28
另请参阅
fishing_area_map() for the map of one area and its
subareas.