Historical shell form variation in Lottia subrugosa from southeast Brazilian coast: Possible responses to anthropogenic pressures

Autor(es)

Yokota Harayashiki, Cyntia Ayumi ^[1] ; Martins, Camila Pratalli ^[1] ; Marquez, Federico ^{[2, 3]} ; Bigatti, Gregorio ^{[2, 4]} ; Castro, Italo Braga ^[1]

Afiliação do(s) autor(es)

^[1] Univ Fed Sao Paulo UNIFESP, Dept Ciencias Mar, Rua Carvalho de Mendonca 144, BR-11070100 Santos, SP - Brazil

^[2] CCT CONICET CENPAT, LARBIM IBIOMAR, Bvd Brown 2915, U9120ACV, Puerto Madryn, Chubut - Argentina

^[3] Univ Nacl Patagonia San Juan Bosco, Bvd Brown 3051, U9120ACV, Puerto Madryn, Chubut - Argentina

^[4] Univ Espiritu Santo, Guayaquil - Ecuador

• Tipo de documento: Artigo Científico
• Fonte: Marine Pollution Bulletin; v. 155, JUN 2020.
• Citações Web of Science: 0

Resumo

Mollusk shells can provide important information regarding environmental parameters. It is known that shell morphology is affected by both natural and anthropogenic factors. However, few studies have investigated alterations in shell morphology over a historical perspective and considering chemical contamination and climate changes. The present study assessed shell form (shape and size) variations of limpet (Lottia subrugosa) shells sampled from 1950 to 1981 (past) in comparison with organisms obtained in 2018 (present). Differences between shells from the past and present (2018) were detected, being shell weight and height the two most important affected parameters. The differences observed were attributed to the possible increase in contamination over the years due to human population growth and to climate change. Additionally, when shells from the past were evaluated according to the decade they were sampled, results indicate that it was necessary an interval of 40 years to shell form be altered within populations. (AU)

• Processo FAPESP: 15/25063-0 - Alterações em conchas de Lottia subrugosa como possível biomarcador para áreas costeiras multi-impactadas
• Beneficiário: Ítalo Braga de Castro
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 16/50409-0 - Shell alterations in gastropod mollusks as putative biomarker for multi-impacted coasted areas
• Beneficiário: Ítalo Braga de Castro
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 18/08015-0 - Alterações estruturais de conchas e respostas bioquímicas em lapas como biomarcadores de contaminação ambiental
• Beneficiário: Cyntia Ayumi Yokota Harayashiki
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado