@Article{CoelhoGherGouvKita:2022:CoInOi,
author = "Coelho, Stella Correira Cesar and Gherardi, Douglas Francisco
Marcolino and Gouveia, Mainara Biazati and Kitahara, Marcelo
Visentini",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Universidade Federal
da Bahia (UFBA)} and {Universidade Federal de S{\~a}o Paulo
(UNIFESP)}",
title = "Western boundary currents drive sun-coral (Tubastraea spp.)
coastal invasion from oil platforms",
journal = "Scientific Reports",
year = "2022",
volume = "12",
number = "1",
pages = "e5286",
month = "Mar.",
abstract = "Most marine species have a planktonic larval phase that benefit
from the surface oceanic flow to enhance their dispersion
potential. For invasive species, the interaction of
environmentally resistant larvae with different flow regimes and
artificial substrates can lead to complex larval dispersion
patterns and boost geographic expansion. In the Southwest
Atlantic, the invasive corals Tubastraea spp. (sun-coral) have
been recorded biofouling on oil platforms since the late 1980s.
These platforms are considered important vectors for the
established populations throughout the Brazilian coast. However,
we still do not know how the position of these structures relative
to regional flow contribute to the natural dispersion potential of
these invaders on a regional scale. Herein, we used an
eddy-resolving ocean model (ROMS) and an Individual Based Model
(IBM-Ichthyop) to simulate the natural dispersion patterns of
sun-coral larvae from all oil platforms on Brazilian oil-producing
basins, for the austral summer and winter along 6 years
(2010-2015) in 90-day simulations. We found that mortality rates
by advection were significantly higher during the winter (p =
0.001) and when sources of larvae were compared throughout this
season (p = 1.9 x 10(-17)). The influence of two western boundary
currents and persistent eddy activity contribute to the dispersal
of larvae to distances up to 7000 km. The effectiveness of each
oil-producing basin as vectors for the entire Brazilian coastline,
measured as the percentage of larval supply, highlights the
importance of the northern Ceara (59.89%) and Potiguar (87.47%)
basins and the more central Camamu (44.11%) and Sergipe-Alagoas
(39.20%) basins. The poleward shift of the Southern branch of the
South Equatorial Current during the winter causes larvae released
from the Sergipe-Alagoas and Camamu basins to enter the North
Brazil Current, expanding their dispersion towards the north. The
Brazil Current disperses larvae southwards, but strong mesoscale
activity prevents their dispersion to the coast, especially for
those released from the oil platforms on Campos and Santos basins.
Within this complex hydrodynamic setting, a few source areas, like
those in the Sergipe-Alagoas and Camamu basins, can potentially
contribute to the spread of larvae along nearly all the Brazilian
coast. Therefore, oil platforms act as possible chronic sources of
sun-coral propagules to the coast, emphasizing the urgency for a
more detailed set of actions to control and monitor these invasive
exotic species.",
doi = "10.1038/s41598-022-09269-8",
url = "http://dx.doi.org/10.1038/s41598-022-09269-8",
issn = "2045-2322",
language = "en",
targetfile = "Coelho_2022_western.pdf",
urlaccessdate = "15 jun. 2024"
}