If you are experiencing problems downloading PDF or HTML fulltext, our helpdesk recommend clearing your browser cache and trying again. If you need help in clearing your cache, please click here . Still need help? Email help@ingentaconnect.com

Two endemic and endangered fishes, Poecilia sulphuraria (Alvarez, 1948) and Gambusia eurystoma Miller, 1975 (Poeciliidae, Teleostei) as only survivors in a small sulphidic habitat

$48.00 plus tax (Refund Policy)

Download / Buy Article:

Abstract:

In the Baños del Azufre in Tabasco, Mexico, only two poeciliid species, Poecilia sulphuraria and Gambusia eurystoma, were found in sulphidic habitats, whereas adjacent non-sulphidic habitats were characterized by a vastly different fish community. Exposure of fishes to water from a sulphidic spring showed that all species except for P. sulphuraria quickly lost motion control, probably because of the toxic properties of H2S. It is suggested that the fishes endemic to the Baños del Azufre are highly specialized, and competitive exclusion allows them to survive only in this particular habitat type.

Keywords: adaptation; competitive exclusion; conservation biology; extremophiles; fish communities; hydrogen sulphide

Document Type: Regular Paper

DOI: http://dx.doi.org/10.1111/j.1095-8649.2007.01716.x

Affiliations: 1: Department of Zoology, University of Oklahoma, 730 Van Vleet Oval, Norman, OK 73019, U.S.A. 2: Centro de Investigaciones Biológicas del Noroeste, S.C., Mar Bermejo No. 195, Col. Playa Palo de Santa Rita, A.P. 128, La Paz, Baja California, 23090 México

Publication date: February 1, 2008

Related content

Tools

Favourites

Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more