Influence of agriculture and aquaculture activities on the response of autotrophic picoplankton in Laguna Macapule, Gulf of California (Mexico)

Ecological Processes

Table 2 Spearman rank correlation coefficients between autotrophic picoplankton (APP), environmental components of temperature, ammonia, dissolved inorganic phosphorus (DIP), N:P ratio, and urea and heterotrophic components of nanoplankton (HNF), ciliates (HC), and microzooplankton (MZ), based on total data (two sampling locations) from Laguna Macapule (n = 26) and each sampling location (n = 13)

Location	Environmental variables					Biological variables
Location	SST (°C)	Ammonia (μM)	DIP (μM)	Urea (μM)	N:P ratio	HNF (cells L⁻¹)	HC (cells L⁻¹)	MZ (ind L⁻¹)
Laguna Macapule (combined data set)	0.67*	−0.29	0.38**	0.31	−0.44*	−0.34**	0.40*	0.36**
El Tortugón	0.64*	−0.33	0.33	0.13	−0.44	−0.60*	0.34	0.44
Macapule entrance	0.68*	−0.35	0.24	0.80*	−0.40	−0.42	0.29	0.24