Evaluation of the asociations of dominant fish influenced by the nichthemeral cycle and temporal variations in Los Petenes Biosphere Reserve, Campeche, Mexico
The Petenes Biosphere Reserve (RBLP) is located on the coast of Campeche in the Gulf of Mexico. In this ecosystem nektonic fauna is distinguished for its abundance and diversity as well as the wide seagrasses beds. The purpose of the present work was to analyze the dominant fish associations in a va...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Online |
| Language: | eng |
| Published: |
Universidad Autónoma de Tamaulipas
2014
|
| Online Access: | https://revistaciencia.uat.edu.mx/index.php/CienciaUAT/article/view/618 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | The Petenes Biosphere Reserve (RBLP) is located on the coast of Campeche in the Gulf of Mexico. In this ecosystem nektonic fauna is distinguished for its abundance and diversity as well as the wide seagrasses beds. The purpose of the present work was to analyze the dominant fish associations in a variable environment (dry and rainy season) and a nycthemeral framework. Six sampling campaigns were made in a site located near Jaina Island in the central region of the RBLP between December 2010 and October 2011. In a period of 24 h biological samples were collected every 2 h, and temperature, salinity, dissolved oxygen and pH were measured. All fishes were identified and the dominant species were determined. Statistical techniques of classification and ordering were applied in order to analyze the interspecific associations and the correlations between species abundance and environmental variability. A total volume of 10 602 fish weighing 163.62 kg were captured, identifying 44 species, grouping them in 33 genera and 23 families, 14 of which resulted dominant. Haemulon plumierii was outstanding for its abundance. The canonic correspondence analysis for dry season emphasized the relationship between salinity and pH with the abundance of Eucinostomus gula, Acanthostracion quadricornis and Haemulon aurolineatum. For the rainy season, the relationship between dissolved oxygen and Lagodon rhomboids is evident. There were no significant statistical differences between the groups by climatic period. |
|---|
