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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)

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

Location Environmental variables Biological variables
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
  1. *Significant at p < 0.05; **significant at p < 0.1