Quantification of the non-indigenous ophiuroid Ophiothela mirabilis Verrill, 1867 associated with marine sponges with different morphologies

Fortunato, Humberto Freitas de Medeiros; Lôbo-Hajdu, Gisele

doi:10.3391/ai.2021.16.1.06

Cited by 4 publications

(4 citation statements)

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“…Austral summer is 25-27 °C in SST average, and the benthic community is dominated by turf multispecies algae and the zoanthid Palythoa caribaeorum Duchassaing & Michelotti, 1860(Creed et al 2007Mantelatto et al 2022), but D. anchorata is commonly recorded as one of the major space-occupying species there (Mantelatto et al 2013;Fortunato et al 2020). An unusual absence of D. anchorata was observed during 20 minutes SCUBA dives at two depths (3 m -back and 10 m -forth), in 12 sites of IGB, in October 2019, aiming to collect the invasive ophiuroid Ophiothela mirabilis Verrill, 1867 being hosted by D. anchorata, as both species are intrinsically related in the region (Mantelatto et al 2016;Tavares et al 2019;Fortunato and Lôbo-Hajdu 2021). The absence of D. anchorata was recorded and a putative explanation is enlightened herein.…”

Section: Methodsmentioning

confidence: 79%

bnormal average increase in sea surface temperature may promote the first documented mortality event of a marine sponge in the Southeastern Brazil

Silva¹,

Teixeira²,

Carvalho³

et al. 2022

Biota Neotrop.

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Frequent heat waves and mass mortality events on marine biota are positively correlated to ocean warming. Although literature has indicated some species of marine sponges, and some oceanic regions, like the Brazilian Exclusive Economic Zone, may be less affected or seem to be more resilient under future scenarios of climate changes, few studies have focused on the species responses on the climate change issue along Brazilian coast. This paradigm was undone throughout 2019 after an exceptional average increase of 2 °C in the sea surface temperature (SST) and on precipitation values since 2015 at Ilha Grande Bay (IGB, SE Brazil). The combination of SST and precipitation average increase possibly favored an environmental context for the unprecedented strong population decline and mass mortality rate of the marine sponge species Desmapsamma anchorata in the austral spring. The species used to be one of the most frequent benthic species at IGB however it was only recorded in 41.7% sites (n = 12). From 162 individuals recorded at Abraãozinho along 180 m rocky shore, 83 individuals (51.2%) were healthy, 74 (45.7%) were intensively covered by cyanobacteria and locally bleached, and five (3.1%) were completely bleached or died. Desmapsamma anchorata population deterioration in a biogeographic transition zone (Rio de Janeiro state) may reflect a shift in the marine community of IGB, opening space for opportunistic species establishment and coverage increase, since IGB has a high species turnover. The three-dimensionality, the shelter for several species, the high competitive ability and the potential to indicate polluted or not polluted areas make D. anchorata a key species for IGB monitoring in a climate change scenario.

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Section: Methodsmentioning

confidence: 79%

bnormal average increase in sea surface temperature may promote the first documented mortality event of a marine sponge in the Southeastern Brazil

Silva¹,

Teixeira²,

Carvalho³

et al. 2022

Biota Neotrop.

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“…It is not known if this record represents migration over a one-year period or if the ophiuroids were already present there and un-reported. The near absence of shallow water octocorals in the vicinity of Riviera Beach (Palm Beach County), nearly 50 km north of Deerfield Beach (Jones et al 2020) would not seem likely to inhibit a more northern range extension of individuals of O. mirabilis since this ophiuroid is known to associate with numerous other taxa in Florida (Glynn et al 2020), Brazil (Bumbeer andMantelatto et al 2016;Fortunato and Lôbo-Hajdu 2021), and the eastern Pacific (Granja-Fernández et al 2014). However, the present distributions of non-native western Atlantic and native eastern Pacific O. mirabilis are generally restricted to these amphiamerican tropical/subtropical biogeographic realms (Costello et al 2017, Travares et al 2020).…”

Section: Discussionmentioning

confidence: 99%

“…western Atlantic Ocean. Individuals of O. mirabilis are vagile, highly active epizoites usually associated with diverse benthic taxa, especially octocorals and sponges (Mantelatto et al 2016;Fortunato and Lôbo-Hajdu 2021;Tavares et al 2021). In south Florida, O. mirabilis has a higher occurrence on octocorals than other benthos (Glynn et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Non-native brittle star interactions with native octocoral epizoites: an endemic benthic ctenophore in peril?

et al. 2021

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Widespread and large populations of the non-native eastern Pacific ophiuroid brittle star Ophiothela mirabilis now occur in southeastern Florida, extending the range of this recently introduced species from southern Brazil northward to the eastern Caribbean Sea and Florida. The Florida brittle stars, representing two lineages, are epibionts on shallow (3-18 m depth), tropical/subtropical plexaurid (e.g., Eunicea spp., Muricea spp.) and gorgoniid (Antillogorgia spp.) octocorals. The scope of this study includes recent distributional records of O. mirabilis in south Florida, field abundances in relation to the cohabiting endemic ctenophore Coeloplana waltoni, behavioral observations of the ophiuroid, ctenophore and the predatory amphipod Caprella penantis, as well as a laboratory experiment testing the effects of the non-native ophiuroid on the native ctenophore. Individuals of O. mirabilis have been collected near St. Lucie Inlet, extending its northern-most range by about 110 km since 2019. Two years of field sampling have demonstrated significant declines of the native, benthic ctenophore with increasing abundances of the non-native ophiuroid. Evidence suggests that the ophiuroid is negatively affecting the abundances of the ctenophore through interference competition, greatly aided by its abrasive armature of calcareous spines, plates and hooks. This detrimental effect justifies considering O. mirabilis as an invasive species in south Florida. Sporadic and intense predation by a caprellid amphipod also probably contributes to the ctenophore's decline, but to a lesser extent than that caused by the ophiuroid. Adding to the risk of extinction of C. waltoni is its narrow requirement of living octocorals as hosts and restricted distribution in southeast Florida and the Bahamas.

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“…Sponge-ophiuroid associations are often seen in the marine environment (Pearse, 1934;Fortunato and Lôbo-Hajdu, 2021). It has been New sponge-ophiuroid associations Oliveira et al scientifically proven that ophiuroids associate with sponges, where they find shelter, protection, and food availability due to their morphology (external indentations and their channel system) (Bakus, 1966;Duarte and Nalesso, 1996;Pansini, 1970;Henkel and Pawlik, 2005).…”

mentioning

confidence: 99%

A report on new sponge-ophiuroid associations and reinforcement of scientific knowledge

Oliveira,

Silva,

Barroso

et al. 2024

Ocean Coast. Res.

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Quantification of the non-indigenous ophiuroid Ophiothela mirabilis Verrill, 1867 associated with marine sponges with different morphologies

Cited by 4 publications

References 0 publications

bnormal average increase in sea surface temperature may promote the first documented mortality event of a marine sponge in the Southeastern Brazil

bnormal average increase in sea surface temperature may promote the first documented mortality event of a marine sponge in the Southeastern Brazil

Non-native brittle star interactions with native octocoral epizoites: an endemic benthic ctenophore in peril?

A report on new sponge-ophiuroid associations and reinforcement of scientific knowledge

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