Cnidarians and Their Polychaete Symbionts

Molodtsova, Tina N.; Britayev, Temir A.; Martín, Daniel

doi:10.1007/978-3-319-31305-4_25

Cited by 23 publications

(25 citation statements)

References 75 publications

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“…Observations of Vermiliopsis spp. in corals are rare (Table 1), and in literature reviews of coral-associated polychaetes they are usually not mentioned (Stella et al 2011;Molodtsova et al 2016). So far it only appeared to have been reported as an associate of Stephanocoenia intersepta (Martin and Britayev 1998; and the invasive Tubastraea coccinea (Lesson, 1829) (Hoeksema and Ten Hove 2016).…”

Section: Resultsmentioning

confidence: 99%

Helioseris cucullata as a host coral at St. Eustatius, Dutch Caribbean

et al. 2016

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In order to demonstrate how scleractinian corals contribute to marine biodiversity by their host function, information on associated fauna was gathered during a biological survey at St. Eustatius, eastern Caribbean. This knowledge is especially urgent for a host coral such as Helioseris cucullata (Agariciidae), which has undergone strong declines in abundance at various Caribbean localities and has a poor record of associated fauna. New records of H. cucullata as host are presented for the coral gall crab Opecarcinus hypostegus (Cryptochiridae), the Christmas tree worm Spirobranchus giganteus (Serpulidae) and an unidentified serpulid tube worm of the genus Vermiliopsis. A second association record is reported for the coral barnacle Megatrema madreporarum (Pyrgomatidae). Coral-associated copepods were not found on H. cucullata despite a search for these animals. The new records were compared with previous records of other host coral species that showed elements of the same associated fauna. The present findings indicate that new discoveries concerning Caribbean coral reef biodiversity can still be made during field expeditions by targeting the assemblages of associated fauna of specific benthic host species.

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Section: Resultsmentioning

confidence: 99%

Helioseris cucullata as a host coral at St. Eustatius, Dutch Caribbean

et al. 2016

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“…Their three-dimensional structures may affect edaphic conditions (Valisano et al 2016;Ponti et al 2018) and enhance local biodiversity, especially in Mediterranean coralligenous habitats (Ponti et al 2014(Ponti et al , 2016(Ponti et al , 2018. Anthozoans, including sea-fans, often host organisms seeking for shelter (Molodtsova et al 2016), food and/or reproductive success (Goh et al 1999). Amongst them (Patton 1972;Goh et al 1999;Dias et al 2015), there are either sessile species like sponges (Calcinai et al 2013) and hydroids (Puce et al 2008;Seveso et al 2016;Pica et al 2017) or vagile species like crustaceans (Ponti et al 2016;Valisano et al 2016) and polychaetes Britayev 1998, 2018;Glasby and Watson 2001;Barnich et al 2013;Britayev et al 2014;Carvalho et al 2014;Cúrdia et al 2015;Martin et al 2002;Nygren and Pleijel 2010).…”

Section: Introductionmentioning

confidence: 99%

“…As much as 26% of the polychaetes living in association with cnidarians are Syllidae (Molodtsova et al 2016). Syllids have complex taxonomy (Aguado et al 2012) and their life strategies often include associations with sponges, cnidarians, molluscs, crustaceans, echinoderms and other polychaetes Britayev 1998, 2018).…”

Section: Introductionmentioning

confidence: 99%

Updating the current knowledge on the relationships between Haplosyllis chamaeleon Laubier, 1960 (Annelida, Syllidae) and Paramuricea clavata (Risso, 1826) (Cnidaria, Plexauridae) in the Mediterranean Sea

et al. 2020

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In the Mediterranean Sea, the symbiosis between the gorgonian Paramuricea clavata (Risso, 1826) and the polychaete Haplosyllis chamaeleon Laubier, 1960 (Annelida, Syllidae, Syllinae) has only been documented from the western basin. Our findings extend its geographic distribution to the north-central basin and represent the first record of H. chamaeleon in Italy and Croatia. Periodic observations from the Ligurian Sea allowed establishing that the symbiont occurs on P. clavata almost throughout the year, showing a reproductive period longer than previously reported. Morphometric comparisons of three Mediterranean populations, from Portofino Promontory (Ligurian Sea), Cape of Creus (Catalan Sea) and Chafarinas Archipelago (Alboran Sea) proved that there were no significant differences in body measurements, whilst the observed differences in dorsal cirri length pattern could be consider intra-specific. Our behavioural observations confirm that the species had (i) a kleptoparasitic behaviour, (ii) did not cause injuries to the host and (iii) did not induce the host to generate any malformation.

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“…Although less diverse, similar habits are also present among cirratulids and sabellids, the latter being also able to infest fresh water invertebrates (Martin & Britayev, 1998). Polychaetes are also known to excavate galleries in seagrasses (Guidetti, 2000; Gambi, van Tussenbroek & Brearley, 2003), cnidarians (Martin et al, 2002; Cairns & Bayer, 2008; Cairns, 2006, 2009, 2011, 2012; Mueller et al, 2013; Britayev et al, 2014; Molodtsova, Britayev & Martin, 2016) and sponges (see Lattig & Martin, 2011 and references herein). Seagrass associated polychaetes are mainly detritivores that bore into the dead sheath tissues (Gambi, van Tussenbroek & Brearley, 2003), but their galleries are also present in living meristems and leaves that have been reported as “mined” tissues (Guidetti, 2000).…”

Section: Discussionmentioning

confidence: 99%

Proceraea exoryxaesp. nov. (Annelida, Syllidae, Autolytinae), the first known polychaete miner tunneling into the tunic of an ascidian

Martín

Nygren²,

Cruz‐Rivera

2017

PeerJ

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While studying organisms living in association with the solitary tunicate Phallusia nigra (Ascidiacea, Ascidiidae) from a shallow fringing reef at Zeytouna Beach (Egyptian Red Sea), one of the collected ascidians showed peculiar perforations on its tunic. Once dissected, the perforations revealed to be the openings of a network of galleries excavated in the inner tunic (atrium) by at least six individuals of a polychaetous annelid. The worms belonged to the Autolytinae (Syllidae), a subfamily that is well known to include specialized predators and/or symbionts, mostly associated with cnidarians. The Red Sea worms are here described as Proceraea exoryxae sp. nov., which are anatomically distinguished by the combination of simple chaetae only in anterior chaetigers, and a unique trepan with 33 teeth in one outer ring where one large tooth alternates with one medium-sized tricuspid tooth, and one inner ring with small teeth located just behind the large teeth. Male and female epitokes were found together with atokous individuals within galleries. Proceraea exoryxae sp. nov. constitutes the first known miner in the Autolytinae and the second species in this taxon known to live symbiotically with ascidians. The implications of finding this specialized parasite are discussed considering that Phallusia nigra has been introduced worldwide, in tropical and sub-tropical ecosystems, where it has the potential of becoming invasive.

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Cnidarians and Their Polychaete Symbionts

Cited by 23 publications

References 75 publications

Helioseris cucullata as a host coral at St. Eustatius, Dutch Caribbean

Helioseris cucullata as a host coral at St. Eustatius, Dutch Caribbean

Updating the current knowledge on the relationships between Haplosyllis chamaeleon Laubier, 1960 (Annelida, Syllidae) and Paramuricea clavata (Risso, 1826) (Cnidaria, Plexauridae) in the Mediterranean Sea

Proceraea exoryxaesp. nov. (Annelida, Syllidae, Autolytinae), the first known polychaete miner tunneling into the tunic of an ascidian

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