Invasion and current distribution of the octocoral Carijoa riisei (Duchassaing &amp; Michelotti, 1860) in the Ecuadorian coast (Eastern Tropical Pacific)

Cárdenas-Calle, Maritza; Perez-Correa, Julian; Uzca-Sornoza, Cecilia; Bigatti, Gregório; Dı́ez, Nardy; Lozada, Mariana; Coronel, Jorge; Herrera, Ileana; Torres, Gladys; Cuadra, Telmo De la; Espinoza, Fernando; Mair, James McD; Keith, Inti

doi:10.3391/ai.2021.16.1.05

Cited by 4 publications

(3 citation statements)

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“…In the past decade, the expansion of Carijoa riisei throughout the TEP has increased considerably. Recent records of its occurrence in several Latin American countries demonstrate its great ability to adapt to the prevailing environmental conditions in the TEP (Cárdenas‐Calle et al, 2021; Galván‐Villa & Ríos‐Jara, 2018; Gómez et al, 2014; Sánchez & Ballesteros, 2014; Vargas & Breedy, 2022). Despite the growing number of records of C. riisei , few studies show the ecological impact of this species.…”

Section: Discussionmentioning

confidence: 99%

“…Previously, it was considered a species from the Caribbean Sea and the Western Atlantic, but genetic studies have shown that its origin corresponds to the Indo‐Pacific (Concepcion et al, 2010). This species was recorded in the Hawaiian Islands in 1972 (Kahng & Grigg, 2005) and more recently in various parts of the Tropical Eastern Pacific (TEP): Colombia, Panama, Ecuador, Costa Rica, and Mexico (Cárdenas‐Calle et al, 2021; Galván‐Villa & Ríos‐Jara, 2018; Quintanilla et al, 2017; Sánchez & Ballesteros, 2014; Vargas & Breedy, 2022). In Hawaii, it has caused mortality in native populations of the black coral Antipathes dichotoma Pallas, 1766, with both ecological and economic implications (Kahng et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

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Effect of the alien octocoral Carijoa riisei on benthic fauna assemblages on natural and artificial substrates

et al. 2023

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Carijoa riisei is an invasive octocoral whose dispersal in the tropics has increased considerably in recent years. This study evaluated the changes in the benthic fauna assemblages associated with C. riisei growing on rocks from a sea port and on the metal of a submerged shipwreck in the bays of Manzanillo, Colima, in the Mexican Central Pacific. Quarterly samples were collected between April 2021 and January 2022, with the presence or absence of C. riisei. The effect of C. riisei on the benthic fauna according to the type of substrate was evaluated with PERMANOVA models. The presence of C. riisei was found to affect taxonomic diversity. In the absence of the octocoral, 209 species were recorded, whereas in its presence, 190 were found. The decline of taxa occurred at the level of families, genera, and species. The interaction of the presence/absence of C. riisei and substrate generated significant changes in the Shannon (1D) and Simpson (2D) diversity indexes. However, the presence of C. riisei coincided with higher abundances of Ophiothela mirabilis, Ericthonius brasiliensis, and Pseudobranchiomma schizogenica. In conclusion, the snowflake coral favors the dominance of some species and reduces the biological diversity of several taxa, mainly mollusks, polychaetes, sipunculids, and anthozoans, generating significant changes in the structure of benthic communities. This study highlights the need to evaluate species composition in areas where the octocoral grows, to determine whether its presence has an ecological impact and whether control measures are required.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of the alien octocoral Carijoa riisei on benthic fauna assemblages on natural and artificial substrates

et al. 2023

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“…Considering this fauna is moderately long-lived, they can live over 50 years [6]. From the species reported with a regional distribution pattern, M. plantaginea tends to decrease in the number of records while migrating towards the northern macrozones, indicating that M. plantaginea is resilient to temperature changes in the water column, mainly adapting to sandy and silt bottoms [44]. According to Steiner et al (2018) [13], in the REMAPE (M4), the abundance of this species comprises around 48.6% of the total, establishing itself as the most conspicuous one, growing in "underwater cliffs" with vertical slopes that can reach depths of up to 25 m that allow them to support strong swells occurring in the central and southern macrozones.…”

Section: Distribution Of the Three Targeted Speciesmentioning

confidence: 99%

Octocoral Distribution Patterns at the Equatorial Front (Tropical Eastern Pacific): Muricea and Leptogorgia

Abad

Jaramillo

Castro-Rodas

et al. 2022

Oceans

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The Equatorial Front, in the southern part of the Tropical Eastern Pacific (TEP) region, has been characterized as a hotspot of functional biodiversity due to the mixing of warm and cold waters. Nevertheless, the biogeographic patterns for some organisms, such as octocorals, remain unknown in some coastal regions. Therefore, we aimed to assess the distribution of two common octocoral genera in this area, Muricea and Leptogorgia, including 14 species based on museum specimen records, along the mainland coast of Ecuador. Statistical analyses were performed on the environmental and geographical patterns (Sea Surface Temperature (SST), bathymetry, chlorophyll (CHL-a), and Photosynthetic Active Radiation (PAR)) that influence the Equatorial Front, which is subdivided into five biogeographic regions. Our results showed two hotspots of octocoral biodiversity. The SST was found to be the main environmental factor related to octocoral distribution along the Equatorial Front. Finally, the highest abundance of Muricea over Leptogorgia suggests the former species’ higher resilience to thermal fluctuations. We discuss the possible role of substrates at suitable depths, active photosynthetic radiation, and temperature in the occurrence of octocorals in the two hotspots.

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Change in habitat suitability of the invasive Snowflake coral (Carijoa riisei) during climate change: An ensemble modelling approach

Nisin K.M.N.,

K.R.,

Paul Sreeram

2023

Ecological Informatics

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Invasion and current distribution of the octocoral Carijoa riisei (Duchassaing & Michelotti, 1860) in the Ecuadorian coast (Eastern Tropical Pacific)

Cited by 4 publications

References 0 publications

Effect of the alien octocoral Carijoa riisei on benthic fauna assemblages on natural and artificial substrates

Effect of the alien octocoral Carijoa riisei on benthic fauna assemblages on natural and artificial substrates

Octocoral Distribution Patterns at the Equatorial Front (Tropical Eastern Pacific): Muricea and Leptogorgia

Change in habitat suitability of the invasive Snowflake coral (Carijoa riisei) during climate change: An ensemble modelling approach

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