fao_pd_groups(): 中上层与底层物种类群

英文原页：fao_pd_groups()

说明

本函数列出海洋鱼类和甲壳类的ISSCAAP物种类群，以及pelagic_demersal()的两种定义对每个类群的计法：“pelagic”（中上层）、“demersal”（底层）或”not counted”（不计入）。未列出的ISSCAAP类群（软体动物、洄游性鱼类和淡水鱼类、哺乳动物、植物、其他无脊椎动物）在两种定义中都不计入。

English

This function lists the ISSCAAP species groups of marine fishes and crustaceans, and how each is counted by the two definitions of pelagic_demersal(): “pelagic”, “demersal” or “not counted”. ISSCAAP groups not listed (molluscs, diadromous and freshwater fishes, mammals, plants, other invertebrates) are not counted by either definition.

用法

fao_pd_groups()

返回值

一个数据框，每个类群一行：isscaap_code、isscaap_en（FAO数据中使用的名称）、de_leiva_moreno和grainger_garcia。

English

A data frame with one row per group: isscaap_code, isscaap_en (the name used in the FAO data), de_leiva_moreno and grainger_garcia.

参考文献

Caddy, J.F. (1993). Toward a comparative evaluation of human impacts on fishery ecosystems of enclosed and semi-enclosed seas. Reviews in Fisheries Science 1: 57-95. doi:10.1080/10641269309388535

Caddy, J.F., Carocci, F. and Coppola, S. (1998). Have peak fishery production levels been passed in continental shelf area? Some perspectives arising from historical trends in production per shelf area. Journal of Northwest Atlantic Fishery Science 23: 191-219. doi:10.2960/J.v23.a13

de Leiva Moreno, J.I., Agostini, V.N., Caddy, J.F. and Carocci, F. (2000). Is the pelagic-demersal ratio from fishery landings a useful proxy for nutrient availability? A preliminary data exploration for the semi-enclosed seas around Europe. ICES Journal of Marine Science 57: 1091-1102. doi:10.1006/jmsc.2000.0705

Grainger, R.J.R. and Garcia, S.M. (1996). Chronicles of marine fishery landings (1950-1994): trend analysis and fisheries potential. FAO Fisheries Technical Paper 359. Rome: FAO. https://www.fao.org/4/w3244e/w3244e00.htm

Hondorp, D.W., Breitburg, D.L. and Davias, L.A. (2010). Eutrophication and fisheries: separating the effects of nitrogen loads and hypoxia on the pelagic-to-demersal ratio and other measures of landings composition. Marine and Coastal Fisheries 2: 339-361. doi:10.1577/C09-020.1

示例

fao_pd_groups()