Differential Settlement of Associated Species onOstrea puelchanad'Orbigny, 1842 (Ostreidae) in Patagonia (Argentina)

Romero, Matías; Brezina, Soledad Silvana; Hernández, Daniel; Casadı́o, Silvio; Bremec, Claudia

doi:10.4003/006.031.0210

Cited by 8 publications

(9 citation statements)

References 58 publications

(62 reference statements)

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“…In the studied materials, the nucleus consists of an articulated specimen of the oyster Ostrea puelchana . This oyster shows a wide depth distribution from 10 to 100 m water depth (Rios, 2009; Romero et al, 2013).…”

Section: Discussionmentioning

confidence: 99%

Palaeoenvironmental dynamics of Holocene shoreface bryoliths from the southern coast of Brazil

et al. 2019

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Beds of free-living coated nodules (coralline algae, bryozoans, acervulinid foraminifera) create shallow-water carbonate biogenic benthic habitats, which are sensitive to human disturbance and slow to recover. Holocene bryoliths, ranging from sub-spheroidal, sub-discoidal to sub-ellipsoidal in shape, were found scattered in the foredunes in ca. 30-km stretch along the Hermenegildo and Concheiros do Albardão beaches on the southernmost coast of Brazil (Santa Vitória do Palmar municipality, Rio Grande do Sul State). The dominating bryozoan species forming the bryolith is Biflustra holocenica Vieira, Spotorno-Oliveira and Tâmega sp. nov. The inner bryolith arrangement, generally asymmetrical, shows multilamellar and circumrotatory growth of colonies that envelop the bivalve Ostrea puelchana. Bryozoans and subordinate corals characterize the outer bryolith surfaces. The ichnogenera Gastrochaenolites (made by the boring bivalve Lithophaga patagonica) and Caulostrepsis occur throughout the bryoliths, from the inner part up to the outer surface. The studied bryoliths, originated in a shoreface setting at ca. 7910–7620 cal. yr BP and during subsequent storm waves, were resedimented onto the foreshore and foredunes (to ca. 5700 cal. yr BP) where the bryoliths were finally fossilized.

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Section: Discussionmentioning

confidence: 99%

Palaeoenvironmental dynamics of Holocene shoreface bryoliths from the southern coast of Brazil

et al. 2019

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“…This methodology was followed in accordance with the analyses performed in several previous works (Mauna et al, 2005;Parras and Casadío, 2006;Romero et al, 2013;Brezina et al, 2014).…”

Section: Methodsmentioning

confidence: 99%

Encrusting and Boring Barnacles Through the Cretaceous/Paleogene Boundary in Northern Patagonia (Argentina)

2017

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Information about barnacles as fossil components of hard substrate communities from middle latitudes in the Southern Hemisphere is scarce. Changes in these barnacle communities during episodes of extinction, such as that which occurred during the Cretaceous/Paleogene (K-Pg) boundary, are almost unknown. We describe encrusting and boring barnacles associated with Maastrichtian and Danian oysters, evaluate the involved taphonomic processes and report changes in their frequencies over time. A total of 1,174 valves belonging to nine oyster species, collected from the Jagüel and Roca formations of the Neuquén Basin, were analyzed. Presence/absence of barnacles or their bioerosional traces were recorded, frequencies of host incrustation and bioerosion were calculated and taphonomic and statistical analyses were performed. The encrusting barnacles identified on the oyster shells were assigned to Verruca rocana and, their traces, to the ichnospecies Centrichnus concentricus Bromley and Martinell. The boring barnacles are represented by traces assigned to the ichnogenus Rogerella. A preliminary taphonomic analysis indicated that late Maastrichtian and early Danian shells presented a fair-poor condition given by abrasion and fragmentation as taphonomic attributes while late Danian shells exhibited mostly good-fair or mixed condition for both attributes. Verruca rocana was not recorded during the late Maastrichtian but high frequencies of encrusted valves did become apparent after the K-Pg boundary. Boring barnacles represented by the trace Rogerella exhibited a decline in abundance during the early Danian but an increase during the late Danian. Both the encrusting and the boring barnacles associated with oysters presented an increase in their frequencies during the late Danian.

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“…Epibiosis is a spatially close, facultative association between two living organisms in which the epibiont lives attached to the surface of a basibiont used as a substrate for support during the sessile period of the life cycle (Harder, 2009;Fernandez-Leborans, 2010;Romero, Brezina, Hernández, Casadío, & Bremec, 2013;Azevedo, Brandão, Abdallah, & Silva, 2014). This nonsymbiotic relationship can provide a variety of potential benefits or negative impacts for the epibiont and/or basibiont (Wahl, 1989;Wahl & Mark, 1999;Fernandez-Leborans, 2010;Machado, Sanches, Fortuna, & Costa, 2013).…”

Section: Introductionmentioning

confidence: 99%

“…Many groups of marine invertebrates (e.g., annelids, bryozoans, cnidarians, crustaceans, mollusks, polychaetes, poriferans etc.) are recognized as epizoans on a wide variety of other mobile and Mori & Manconi, 1990;Gili, Abello, & Villanueva, 1993;Key, Jeffries, Voris, & Yang, 1996;Villegas, Stotz, & Laudien, 2005;Fernandez-Leborans, 2010;Farrapeira & Calado, 2010;Lima, Queiroz, Bravo de Laguna, & Mioso, 2014;Lima, Queiroz, Oliveira, Christoffersen, & Guimarães, 2016;Machado et al, 2013;Romero et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

The first finding of Ostrea cf. puelchana (Bivalvia) living as epibiont on Callinectes exasperates (Decapoda)

Lima

Lucena

Queiroz

et al. 2017

Acta Sci. Biol. Sci.

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This paper describes the epibiosis of Ostrea cf. puelchana on Callinectes exasperatus (Gerstaecker, 1856), both collected from the estuary of the Paraíba River, in the state of Paraíba, northeastern Brazil. The basibiont crab was captured using a trap installed in mangrove area at a depth of about 2 meters. The oyster was closely attached to the left side of dorsal carapace covering most of the epibranchial, mesobranchial and metabranchial regions. Possible advantages and disadvantages for both the epibiont and the basibiont are discussed. We believe that young O. cf. puelchana may avoid a variety of potential predators due to the considerable movement capacity of C. exasperatus and may also serve as a small protective shield for the basibiont. However, the oyster, which is a bivalve with an epifaunal lifestyle, is likely to be negatively affected, mainly due to burrowing activity of the crab. This is the first record of epibiosis between bivalves of the genus Ostrea Linnaeus, 1758 and crabs of the genus Callinectes Stimpson, 1860.

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Differential Settlement of Associated Species onOstrea puelchanad'Orbigny, 1842 (Ostreidae) in Patagonia (Argentina)

Cited by 8 publications

References 58 publications

Palaeoenvironmental dynamics of Holocene shoreface bryoliths from the southern coast of Brazil

Palaeoenvironmental dynamics of Holocene shoreface bryoliths from the southern coast of Brazil

Encrusting and Boring Barnacles Through the Cretaceous/Paleogene Boundary in Northern Patagonia (Argentina)

<b>The first finding of Ostrea cf. <i>puelchana</i> (Bivalvia) living as epibiont on <i>Callinectes exasperates</i> (Decapoda)

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