Distribution, population structure and settlement preference of Tubastraea spp. (Cnidaria: Scleractinia) on rocky shores of the Cagarras Islands Natural Monument and surroundings, Rio de Janeiro, Brazil

Silva, Munique dos Santos; Moraes, Fernando C.; Batista, Daniela; Bahia, Ricardo da Gama; Bertoncini, Áthila Andrade; Machado, Augusto A.; Muricy, Guilherme; Karez, C. S.; Pereira-Filho, Guilherme H.; Salgado, Leonardo T.; Pereira, Renato Crespo

doi:10.1016/j.rsma.2022.102245

Cited by 4 publications

(4 citation statements)

References 65 publications

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“…Crusted coralline algae, brown algae, branched algae, Palythoa caribaeorum , Bryozoa sp., Darwinella sp., and red peat were the most common organisms found throughout the quadrat. According to Silva et al (2022) , sun coral larvae demonstrated a preference (63%) for settling in crustose coralline algae on islands off the coast of the city of Rio de Janeiro. The sites where Tubastraea spp.…”

Section: Discussionmentioning

confidence: 99%

Life history strategy of Tubastraea spp. corals in an upwelling area on the Southwest Atlantic: growth, fecundity, settlement, and recruitment

Bastos,

Poubel Tunala,

Coutinho

2024

PeerJ

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Over the past few decades, corals of the genus Tubastraea have spread globally, revealing themselves to be organisms of great invasive capacity. Their constant expansion on the Brazilian coast highlights the need for studies to monitor the invasion process. The growth, fecundity, settlement, and data on the coverage area of three co-occurring Tubastraea species in the 2015–2016 period were related to temperature variation and light irradiance on the rocky shores of Arraial do Cabo, Rio de Janeiro. Hence, this study sought to understand and compare the current invasion scenario and characteristics of the life history strategy of sun coral species based on environmental variables, considering the uniqueness of this upwelling area in the southwestern Atlantic. For that, we evaluate the fecundity, settlement, and growth rates of corals by carrying out comparative studies between species over time and correlating them with the variables temperature and irradiance, according to seasonality. Field growth of colonies was measured every two months during a sample year. Monthly collections were performed to count reproductive oocytes to assess fecundity. Also, quadrats were scrapped from an area near a large patch of sun coral to count newly attached coral larvae and used years later to assess diversity and percentage coverage. Results showed that corals presented greater growth during periods of high thermal amplitude and in months with below-average temperatures. Only Tubastraea sp. had greater growth and polyp increase in areas with higher light incidence, showing a greater increase in total area compared to all the other species analyzed. Despite the observed affinity with high temperatures, settlement rates were also higher during the same periods. Months with low thermal amplitude and higher temperature averages presented high fecundity. While higher water temperature averages showed an affinity with greater coral reproductive activity, growth has been shown to be inversely proportional to reproduction. Our study recorded the most significant coral growth for the region, an increase in niche, high annual reproductive activity, and large area coverage, showing the ongoing adaptation of the invasion process in the region. However, lower temperatures in the region affect these corals’ reproductive activity and growth, slowing down the process of introduction into the region. To better understand the advantages of these invasion strategies in the environment, we must understand the relationships between them and the local community that may be acting to slow down this colonization process.

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Section: Discussionmentioning

confidence: 99%

Life history strategy of Tubastraea spp. corals in an upwelling area on the Southwest Atlantic: growth, fecundity, settlement, and recruitment

Bastos,

Poubel Tunala,

Coutinho

2024

PeerJ

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“…also provide good substrates for the settlement of Tubastraea sp. recruit (Figure 1h), due to a biological cues that may influence larval settlement (Silva et al, 2022).…”

Section: Figurementioning

confidence: 99%

“…also provide good substrates for the settlement of Tubastraea sp. recruit (Figure 1h), due to a biological cues that may influence larval settlement (Silva et al, 2022). around the world (Cairns, 2000;Sammarco et al, 2010), this observation suggests that global coralline algae conservation strategies could also have important implications for regulating their invasive nature as a regional-global scale.…”

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confidence: 94%

A coral‐killing syndrome of nongeniculate coralline algae over the invasive sun coral in Brazil

Tâmega,

Batista,

Gonçalves

et al. 2024

Aquatic Conservation

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“…The module represents, in a very preliminary way, the basic characteristics of Tubastraea spp. larvae, such as the depth at which the larvae are transported, that according to [61,62] is restricted at the superficial level. On the other hand, they are lecithotrophic larvae, which do not feed and have reduced mobility [63][64][65], practically null for the present metric scale.…”

Section: The Dispersion Experimentsmentioning

confidence: 99%

Modeling the larvae dispersion of sun coral in the Brazil current off Cape Frio: A cyclonic eddy scenario

Calado,

Cosenza,

Moraes

et al. 2023

PLoS ONE

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The study aims to understand the dispersal patterns of non-indigenous Tubastraea spp. (Sun Coral) larvae in the Brazil Current (BC), specifically in the Cape Frio recurrent cyclonic eddy (CFE) scenario. For this, the Regional Ocean Model System was used to simulate the hydrodynamic fields in a high-resolution nested grid, where a model of lagrangian floats, in a good approximation of the larvae properties and considering massive planulation events, was coupled with surface larval release from the Campos Basin area. The simulation was representative of mesoscale features compared to similar studies, ARGO vertical profiles and a py-eddy-track algorithm was used to obtain eddy variables, such as radius, rotational and translational velocities. These parameters are fundamental to access when an eddy tends to trap or not the water, heat and plankton in its interior. CFE turned out to be highly nonlinear, with a strong tendency to trap larvae in its core, acting as a dispersal constrictor when compared with the organisms in the axis of the higher speed of BC. A strong negative correlation (-0.75) was found between the days that larvae were inside the eddy and their distance from the origin. None of the 48,000 larvae released during simulated experiment a 16-day spawning event reached the coast. There are two different patterns for the dispersal, one along the shelf break and another, with higher larval density, off from the 1000 m isobath. The CFE’s presence allows larvae to remain in the same region for longer periods, although in offshore areas. Therefore, as there is considerable availability of fixed substrates on oil rig structures, larvae could settle on them resulting in a possible inter-platforms connectivity between populations of Tubastraea spp. Also, regions in the CFE that present downward vertical velocities (downwelling), may move young larvae to depths of about 60 m suggesting that subsurface colonizations are possible due to specific dynamics of propagating cyclonic eddies. So, identifying the main factors that affect the dispersion of propagules is essential to subsidize management policies for controlling bioinvasion associated with exploitation of hydrocarbon resources in offshore areas.

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Distribution, population structure and settlement preference of Tubastraea spp. (Cnidaria: Scleractinia) on rocky shores of the Cagarras Islands Natural Monument and surroundings, Rio de Janeiro, Brazil

Cited by 4 publications

References 65 publications

Life history strategy of Tubastraea spp. corals in an upwelling area on the Southwest Atlantic: growth, fecundity, settlement, and recruitment

Life history strategy of Tubastraea spp. corals in an upwelling area on the Southwest Atlantic: growth, fecundity, settlement, and recruitment

A coral‐killing syndrome of nongeniculate coralline algae over the invasive sun coral in Brazil

Modeling the larvae dispersion of sun coral in the Brazil current off Cape Frio: A cyclonic eddy scenario

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