The marbio data frame has 68 rows (stations) and 24 columns (taxonomic zooplankton groups).
Abundances are expressed in no per cubic meter of seawater.
data(marbio)This data frame contains the following columns giving abundance of:
Acartia clausi - herbivorous
Calanus helgolandicus (adults) - herbivorous
Idem (copepodits 1) - omnivorous
Idem (copepodits 2) - omnivorous
Idem (copepodits 3) - omnivorous
Idem (copepodits 4) - omnivorous
Idem (copepodits 5) - omnivorous
Clausocalanus size class A - herbivorous
Clausocalanus size class B - herbivorous
Clausocalanus size class C - herbivorous
Centropages tipicus (adults) - omnivorous
Centropages typicus (juv.) - omnivorous
Nauplii of copepods - filter feeders
Oithona sp. - carnivorous
Various species of acanthaires - misc
Various species of cladocerans - carnivorous
Larvae of echinoderms - filter feeders
Larvae of decapods - omnivorous
Larvae of gastropods - filter feeders
Eggs of crustaceans - misc
Various species of ostracods - omnivorous
Various species of pteropods - herbivorous
Various species of siphonophores - carnivorous
Bells of calycophores - misc
This dataset corresponds to a single transect sampled with a plankton net across the Ligurian Sea front in the Mediterranean Sea, between Nice (France) and Calvi (Corsica). The transect extends from the Cap Ferrat (close to Nice) to about 65 km offshore in the direction of Calvi (along a bearing of 123°). 68 regularly spaced samples where collected on this transect. For more information about the water masses and their physico-chemical characteristics, see the marphy dataset.
Fromentin, J.-M., F. Ibanez & P. Legendre (1993) A phytosociological method for interpreting plankton data. Marine Ecology Progress Series, 93:285-306.
marphy