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Details van artikel 92 van 185 gevonden artikelen
| Titel: |
Habitat characterization of two populations of bottlenose dolphins (Tursiops truncatus Montagu 1821) in the Northern coast of the State of Veracruz, Mexico |
| Auteur: |
Laura VÁZQUEZ CASTÁN Arturo SERRANO SOLÍS Marisela LÓPEZ ORTEGA José Ángel GALINDO Michelle Paulina VALDES ARELLANES Celina NAVAL ÁVILA |
| Verschenen in: |
Revista científica UDO agrícola |
| Paginering: | Jaargang 7 (2007) nr. 1 pagina's 285-292 |
| Jaar: |
2007 |
| Inhoud: |
Marine mammals require special habitat characteristics for their reproduction, breeding and feeding. There are no studiesregarding marine mammal habitat characterization in the northern coast of the state of Veracruz, Mexico. The goal of thisstudy was to characterize the habitat of two populations of bottlenose dolphins (Tursiops truncatus, Montagu 1821) alongthe northern coast of Veracruz, Mexico. The study area was divided into two zones: Tamiahua, and Tuxpan; 22 boat-basedsurveys were carried out during 18 months, and dolphins where sighted in 16 of these surveys. The environmental variablesmeasured included: depth, bottom type, sea surface temperature, salinity, pH, sea conditions, conductivity, salinity and totaldissolved solids. Also, we estimated chlorophyll concentration (mg/m3) using images obtained by the SeaWifs satellite. Themain factors that characterized bottlenose dolphins’ habitat for these 16 sightings were: bottom type, water depth, seaconditions and chlorophyll concentration. In all the areas dolphins preferred the sandy bottom over other bottom types.Mean bottom depth for sightings were observed was 25,9 m (s.d. ±18,33) in Tamiahua, and 28,9 m (s.d. ±26,50) in Tuxpan.Mean chlorophyll concentration for dolphin sighting locations were 663,6 mg/m3 (s.d. ±871,08) in Tamiahua, and 1.579,63mg/m3 (s.d. ±1525,68) in Tuxpan. This study shows that there are differences in habitat characteristics among the twobottlenose dolphins’ populations studied. |
| Uitgever: |
Universidad de Oriente Press (provided by DOAJ) |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 92 van 185 gevonden artikelen
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