Analysis of hydrobiological responses to anthropogenic and natural influences in a lagoon system in the Gulf of California Cover

.blurhash-client-img { display: none !important; }

Analysis of hydrobiological responses to anthropogenic and natural influences in a lagoon system in the Gulf of California

Oceanological and Hydrobiological Studies

Volume 45 (2016): Issue 1 (March 2016)

By: José Alfredo Arreola-Lizárraga, Gustavo Padilla-Arredondo, Julio Medina-Galván, Lía Méndez-Rodríguez, Renato Mendoza-Salgado and Miguel V. Cordoba-Matson

Open Access

|Mar 2016

Figures & Tables

Map showing the location of the El Rancho-Empalme lagoon system. The dots indicate the sampling sites. The map shows the location of the shrimp farm which delivers effluents to El Rancho

Nonmetric Multidimensional Scaling (nMDS) was used to compare seasonal variation in the groups of samples based on water quality parameters for the El Rancho (A) and Empalme (B) subsystems. Nitrite, nitrate, ammonium, soluble phosphate, and chlorophyll a, were included in the multivariate analysis.

Box and whisker plot of the trophic state by TRIX index for the El Rancho-Empalme lagoon system during seasons. Median, quartiles, ranges, and outliers of data are shown for each event. The plot shows the trophic state levels and the impact of upwelling and shrimp farm effluents.

Characteristics of the El Rancho subsystem, type and surface water inputs-outputs

Parameters			Unit	Non-variant values	Winter	Spring	Summer	Autumn
Area			km²	7.78
Depth			m	0.50
Average system volume			m³	3,890,000
Precipitation					-	156	-	1,299
Evaporation					30,007	40,012	56,428	27,051
Contribution from shrimp farm			m³ day		-	-	31.3	31.3
Contribution from the sea					30,007	39,857	54,461	25,752
Residence time			days		0.9	0.4	1.6	0.5

Seasonal variability in water quality of the El Rancho-Empalme lagoon system

	Units	Spring								Summer
		El Rancho				Empalme				El Rancho				Empalme
		Mean	SD	min	max	Mean	SD	min	max	Mean	SD	min	max	Mean	SD	min	max
Temperature	°C	19.6	0.28	19.04	19.94	20.38	0.34	19.87	21.25	30.15	1.33	28.5	32.24	31.16	1.26	29	33.94
DO	mg l^-1	6.26	0.53	5.65	7.07	6.84	0.5	6.02	7.66	4.21	0.83	3.19	5.83	4.76	1.06	3.03	7.14
Salinity	PSU	38.55	0.44	37.95	39.56	37.93	0.24	37.48	38.43	38.41	1.25	36.73	40.78	35.45	3.09	29.87	39.4
NO²+NO³	μM	0.38	0.09	0.24	0.49	0.35	0.13	0.08	0.76	0.15	0.05	0.09	0.25	0.1	0.05	0.05	0.22
NH⁴		0.52	0.3	0.2	1.12	0.49	0.48	0.1	2.44	0.51	0.35	0.07	1.16	0.46	0.49	0.01	2.3
PO⁴		1.4	0.24	0.91	1.73	1.63	0.19	1.2	1.97	0.96	0.2	0.69	1.44	0.84	0.19	0.55	1.26
Chl a	mg m^-3	1.06	1.65	0.02	5.92	0.57	0.42	0.02	1.64	0.77	0.75	0.04	2.73	1.25	1.2	0	3.29

DOI: https://doi.org/10.1515/ohs-2016-0011 | Journal eISSN: 1897-3191 | Journal ISSN: 1730-413X

Journal RSS Feed

Language: English

Page range: 112 - 120

Submitted on: Apr 27, 2015

Accepted on: Aug 3, 2015

Published on: Mar 10, 2016

Published by: University of Gdańsk

In partnership with: Paradigm Publishing Services

Publication frequency: 4 issues per year

Keywords:

subtropical coastal lagoons,

Gulf of California

Related subjects:

Chemistry, other,

Geosciences, other,

Life sciences, other

© 2016 José Alfredo Arreola-Lizárraga, Gustavo Padilla-Arredondo, Julio Medina-Galván, Lía Méndez-Rodríguez, Renato Mendoza-Salgado, Miguel V. Cordoba-Matson, published by University of Gdańsk
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Previous article Volume 45 (2016): Issue 1 (March 2016)Next article