Banca de DEFESA: Manuel Jesus Moreira Borges

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : Manuel Jesus Moreira Borges
DATE: 26/02/2024
TIME: 09:00
LOCAL: Videoconferência
TITLE:

"TIDAL POOL FISH COMMUNITY IN A COASTAL TOURISM DESTINATION".

KEY WORDS:

Anthropogenic impacts. Coastal urbanization. Diversity. Ecology. Fish feeding. Functional diversity.

PAGES: 45
BIG AREA: Ciências Biológicas
AREA: Ecologia
SUMMARY:

Nature tourism contributes to social and economic development in parallel with environmental conservation, but intensive tourism can result in damage to the visited environment as well. While research comparing points with and without tourism has grown, specific aspects of these interactions between visitors and organisms, such as the effect of variation in the number of tourists or the importance of the receptive structure on animals, are still poorly known. In this study, we evaluated the responses of fish communities in similar tidal pools with the intensities of tourist activities in two beaches of Ceara, Brazil, Iparana (less structured tourism) and Flecheiras (more structured tourism) on days with low visitations (LV, during the week) and with high visitations (HV, weekend) through visual censuses. We compared the responses of fish communities between the beaches and the number of tourists in the area using community parameters (richness, total abundance, and Shannon's diversity). The similarity between tidal pool fish communities in the treatments was compared using ANOSIM and represented with NMDS based on the taxonomic and trophic functional groups. The effects of environmental and anthropogenic variables on the tidal pools were provided by a redundancy analysis (RDA) to show the key variables responsible for the assemblage structure. The tidal pool fish community diverged, both in terms of community parameters and trophic functional composition, between the beaches of Iparana and Flecheiras, but not between HV and LV days. Omnivores were more frequent in Flecheiras, possibly due to tourists feeding the fish. Our RDA indicates that water temperature and number of tourists are the main variables affecting fish assemblage. Tourism structure may sustain a more diverse fish community in Flecheiras, but our treatment days of high and low visitation showed no effect on the fish assemblage. Nevertheless, the number of visitors was one of the influential variables in the RDA. We also registered the effects of fish feeding on the presence of omnivores. Controlling the number of visitors and especially offering a good tourism structure are key factors for sustainable coastal tourism.

COMMITTEE MEMBERS:
Externo à Instituição - JOSE SABINO - UEMS
Presidente - 2310422 - EDUARDO BESSA PEREIRA DA SILVA
Interno - 1123181 - GUARINO RINALDI COLLI
Interno - 2285186 - MURILO SVERSUT DIAS