Research Article

Taxonomic Distinctness of the Soft-bottom Fish Community in A Coastal Lagoon of the West Coast of the Gulf of California, México  

Emelio Barjau-González1 , José Angel Armenta-Quintana2 , Abril Karim Romo-Piñera1 , Juan Manuel López-Vivas1
1 Departamento Académico de Ciencias Marinas y Costeras, Universidad Autónoma de Baja California Sur, CP 23080, La Paz, B.C.S., México
2 Departamento Académico de Ciencia Animal y Conservación del Hábitat, Universidad Autónoma de Baja California Sur, CP 23080, La Paz, B.C.S., México
Author    Correspondence author
International Journal of Marine Science, 2018, Vol. 8, No. 13   doi: 10.5376/ijms.2018.08.0013
Received: 27 Feb., 2018    Accepted: 25 Mar., 2018    Published: 30 Mar., 2018
© 2018 BioPublisher Publishing Platform
This is an open access article published under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Preferred citation for this article:

Barjau-González E., Armenta-Quintana J.Á., Romo-Piñera A.K., and López-Vivas J.M., 2018, Taxonomic distinctness of the soft-bottom fish community in a coastal lagoon of the west coast of the Gulf of California, México, International Journal of Marine Science, 8(13): 106-113 (doi: 10.5376/ijms.2018.08.0013)

Abstract

The coastal lagoon of La Paz is located on the west coast of the Gulf of California, south of La Paz Bay, in the state of Baja California Sur, México, and is known by locals as Ensenada de La Paz. There are no fish ecology studies in this lagoon since the year 2000. Therefore, the aim of this study was to determine the taxonomic distinctness of the soft-bottom fish community of this lagoon. Bi-monthly samplings were carried out in seven localities from August 2016 to June 2017, obtaining a total of 42 replicates. An experimental trawl net was used to catch the fish, and a 22 feet boat with a 75 HP was used as a trawler. Ecological indices such as Fisher’s alpha diversity (α-Fisher), taxonomic distinctness (TD Δ*) and average taxonomic distinctness (AvTD Δ+), were used to describe the current state of this coastal lagoon. A total of 2,763 organisms were collected, belonging to 73 species, 50 genera, 29 families, nine orders and two classes. Majority of the species were grouped in five families. Although, this lagoon has been the object of anthropogenic impact through the discharge of wastewater from the city of La Paz, based on our results (spatial and temporal α-Fisher, TD Δ* and AvTD Δ+), we suggest that this lagoon is in good condition.

Keywords
Anthropogenic impact; Recovery; Taxonomic diversity; La Paz BCS
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