Version 1
: Received: 23 December 2022 / Approved: 29 December 2022 / Online: 29 December 2022 (02:39:57 CET)
How to cite:
Paiva, P.C.; Amaral, A.C.Z.; Seixas, V.C.; Petti, M.A.V.; Steiner, T.M. The Fall and Rise of Diopatra In The Brazilian Coast. Preprints2022, 2022120550. https://doi.org/10.20944/preprints202212.0550.v1
Paiva, P.C.; Amaral, A.C.Z.; Seixas, V.C.; Petti, M.A.V.; Steiner, T.M. The Fall and Rise of Diopatra In The Brazilian Coast. Preprints 2022, 2022120550. https://doi.org/10.20944/preprints202212.0550.v1
Paiva, P.C.; Amaral, A.C.Z.; Seixas, V.C.; Petti, M.A.V.; Steiner, T.M. The Fall and Rise of Diopatra In The Brazilian Coast. Preprints2022, 2022120550. https://doi.org/10.20944/preprints202212.0550.v1
APA Style
Paiva, P.C., Amaral, A.C.Z., Seixas, V.C., Petti, M.A.V., & Steiner, T.M. (2022). The Fall and Rise of <em>Diopatra</em> In The Brazilian Coast. Preprints. https://doi.org/10.20944/preprints202212.0550.v1
Chicago/Turabian Style
Paiva, P.C., Mônica A. Varella Petti and Tatiana Menchini Steiner. 2022 "The Fall and Rise of <em>Diopatra</em> In The Brazilian Coast" Preprints. https://doi.org/10.20944/preprints202212.0550.v1
Abstract
Patches of Diopatra species from Brazilian sandy beaches were followed for ca. 50 years. Data were accessed from papers, gray literature, images and collections to verify time changes in the South Brazilian Bight (SBB) from 1974-2021. We modeled maximum density over time at 15 beaches, observing very high densities (> 100 ind.m-2) in 1974 followed by a decrease (~ 10 ind.m-2) of three species of Diopatra until 1995 and a strong decline (1996-2002) when populations were almost regionally extinct (0-1 ind. m-2). A slight recovery (3-4 ind.m-2) occurred after 2006 for a single species, D. marinae, associated with warmer northern waters, suggesting a range shift. This pattern was associated with a) heatwaves linked to an El-Niño event (1988) and gradual SST surface warming of ca. 1 oC since 1974. The usage of Diopatra spp. as fishing bait could also be associated with such a reduction. After 2016, D. neapolitana, a likely alien species, was established in the SBB in high densities. Projections based on Species Distribution Modeling (SDM) suggest a potential of invasion in the same range of the known species of D. cuprea complex along the Brazilian coast despite that there are no signs of competition between both species.
Keywords
South Brazilian Bight; biogeography; heatwaves; global warming; range-shifts; alien species
Subject
Biology and Life Sciences, Ecology, Evolution, Behavior and Systematics
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
,
,
,
