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https://rinacional.tecnm.mx/jspui/handle/TecNM/14244| Title: | Seasonal Response of Major Phytoplankton Groups to Environmental Variables along the Campeche Coast, Southern Gulf of Mexico |
| Authors: | Gómez Figueroa, Alfredo Rendon von Osten, Jaime Poot Delgado, Carlos Antonio Okolodkov, Yuri |
| metadata.dc.subject.other: | annual cycle cyanobacteria diatoms dinoflagellates nutrients nanoflagellates |
| Issue Date: | 2023-05-09 |
| Publisher: | Tecnológico Nacional de México |
| metadata.dc.publisher.tecnm: | Instituto Tecnológico Superior de Champotón |
| Description: | To describe the seasonal response of the major phytoplankton groups to environmental variables along the Campeche coast, southeastern Gulf of Mexico, seven shallow-water (ca. 1 m) stations were monitored from January 2019 to January 2020. Orthophosphate, ammonium, nitrite, nitrate and silicate were measured. Several tests, including ANOVA, the Kolmogorov–Smirnov test, Tukey TSD, Bartlett’s test and canonical correspondence analysis (CCA), were applied. The physicochemical variables (temperature, salinity and pH) recorded are typical for the central coast of Campeche. Seasonal characteristics are affected by the shallowness of the study area. The variation of inorganic nutrient concentrations is likely to be related to specific polluting activities. While the abundance of phytoplankton presented a minimum value of 4.1 104 cells L1 in March, the maximum value of 8.8 106 L1 cells occurred in May; the general average was 5.3 105 cells L1. Based on CCA, the correlation between major phytoplankton groups and physical–chemical variables was high (r 0.8), indicating a significant relationship. The CCA graphs separated the samples of diatoms by higher values of pH and silicate and separated the samples of cyanobacteria with high values of temperature (>30 C) from the samples with dinoflagellates and nanoflagellates. Nanoflagellates were abundant in the samples with high values of ammonium and phosphate. |
| metadata.dc.type: | info:eu-repo/semantics/article |
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| File | Description | Size | Format | |
|---|---|---|---|---|
| Gomez-Figueroa et al 2023.pdf | Articulo | 1.29 MB | Adobe PDF | View/Open |
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