More than 130 species of macroalgae have been recorded from the BMLC (Sanchez-Rodriguez et al.
The BMLC is a region of high primary productivity throughout the year, with maximum reported microphytoplankton densities of 1,500,000 cells/liter and maximum reported nanoplankton densities of 791,760 cells/liter (Alvarez-Borrego et al.
These inconsistent results are probably a consequence of the extremely high temporal and spatial variability in BMLC hydrological parameters.
At least 87 genera and 277 taxa of phytoplankton have been reported from the BMLC (Garate-Lizarraga and Sisqueiros-Beltrones 1998; Garate-Lizarraga and Verdugo-Diaz 2001).
The BMLC zooplankton assemblage is dominated by copepods, which comprise 50-90% of total zooplankton biomass throughout the year (Palomares-Garcia 1992; Palomares-Garcia and Gomez-Gutierrez 1996).
There is a well-defined seasonal pattern of copepod diversity and species succession in the BMLC that is closely related to changes in hydrology, especially the direction and intensity of the California Current.
The permanence of a defined seasonal pattern of relative abundance suggests that the BMLC copepod assemblage is rather stable and that the dominant taxa are highly adaptable to changing environmental conditions.
Chaetognaths are also common components of the BMLC zooplankton assemblage.
Immature crabs are also consistent seasonal components of the BMLC zooplankton assemblage.
The ichthyoplankton assemblage in the BMLC has been studied both temporally and spatially with somewhat inconsistent results.
The marine invertebrate assemblage of the BMLC consists primarily of a tropically derived fauna (Garth 1960; Brusca 1980).
Although no complete inventory of the invertebrate fauna exists, the sublittoral benthic macroinvertebrate assemblage of the BMLC has been described.