How mollusk assemblages respond to different urbanization levels: characterization of the malacofauna in subtropical Brazilian mangroves

Autor(es)

Saad, Luiza de Oliveira ^[1] ; Cunha, Carlo Magenta ^[2] ; Delevati Colpo, Karine ^[3]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Dept Zool, Inst Biociencias, Rua Matao, Trav 14, 321, BR-05508090 Sao Paulo - Brazil

^[2] Univ Metropolitana Santos, Ave Conselheiro Nebias 536, BR-11045002 Santos, SP - Brazil

^[3] Univ Nacl La Plata, CONICET, Inst Limnol Dr Raul A Ringuelet, RA-1900 La Plata, Buenos Aires - Argentina

• Tipo de documento: Artigo Científico
• Fonte: MARINE BIODIVERSITY; v. 49, n. 2, p. 989-999, APR 2019.
• Citações Web of Science: 0

Resumo

This study aimed to describe the composition of mollusk assemblages in subtropical Brazilian mangroves with different levels of urbanization in their watersheds. Mangroves are important ecosystems, which are vanishing worldwide due to human impacts. The knowledge about the consequences of human pressure on the fauna of these ecosystems is still incipient. In addition, although Brazil is the country with the second largest mangrove area, there is a lack of studies on the mangrove fauna in this country. Mollusks are the second most abundant group of mangrove invertebrates and can be useful indicators of mangrove health. For this reason, mollusk species were assessed in two mangroves surrounded by a dense human population and in two mangroves away from urban centers. A total of 3820 individuals, representing 15 species, were sampled. The results revealed that the mollusk abundance, diversity estimators, and sediment organic matter content were not good indicators of the effects of urbanization on the mangroves studied. However, the species composition of mollusk assemblages differed according to the urbanization level. This survey of the mangrove malacofauna represents another step toward the effort to investigate and conserve the fauna of these important estuarine environments. (AU)

• Processo FAPESP: 10/11253-9 - Análise filogenética de Aplysiomorpha (Mollusca, Opisthobranchia), com base em morfologia comparada, e revisão sistemática das espécies brasileiras
• Beneficiário: Carlo Magenta Cunha
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 11/01493-5 - Malacofauna em Manguezais no Estado de São Paulo
• Beneficiário: Luiza de Oliveira Saad
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica