Evidence that rising coastal seawater temperatures increase reproductive output of the invasive gastropod Crepidula fornicata

Valdizan, Alexandra; Beninger, Peter G.; Decottignies, Priscilla; Chantrel, Marianne; Cognie, Bruno

doi:10.3354/meps09281

Cited by 19 publications

(11 citation statements)

References 48 publications

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“…Our findings show the great spread experimented by this species during the last 30 years, becoming the dominant species of the epibenthic megafaunal assemblages in MC in terms of both abundance and biomass. The reproductive success of C. fornicata is known to improve with higher seawater temperature, so its spread in recent years may have been favoured by rising seawater temperatures due to global warming, and this may be enhanced in the near future (Bashevkin and Pechenik, 2015;Valdizan et al, 2011). The high abundance of C. fornicata does not seem to have affected epifaunal diversity in the area, despite the expected ecological impacts as described by Blanchard (1997).…”

Section: Discussionmentioning

confidence: 73%

Subtidal benthic megafauna in a productive and highly urbanised semi-enclosed bay (Ría de Vigo, NW Iberian Peninsula)

Aneiros

Rubal

Troncoso

et al. 2015

Continental Shelf Research

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Section: Discussionmentioning

confidence: 73%

Subtidal benthic megafauna in a productive and highly urbanised semi-enclosed bay (Ría de Vigo, NW Iberian Peninsula)

Aneiros

Rubal

Troncoso

et al. 2015

Continental Shelf Research

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“…; Valdizan et al. ; Bohn et al. , ), few comparable studies have been conducted on C. fornicata in the species’ native range (Pechenik et al.…”

Section: Resultsmentioning

confidence: 99%

Fecundity of the invasive marine gastropodCrepidula fornicatanear the current northern extreme of its range

Pechenik

Diederich

Browman

et al. 2017

Invertebrate Biology

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The calyptraeid gastropod Crepidula fornicata is native to the eastern coast of the United States but has now become an extremely successful invader along much of the European coastline. As the northern limit of its spread is thought to be determined by an inability of adults to tolerate prolonged exposure to low winter temperatures, this study sought to compare the fecundity of females collected from two sites along the Norwegian coastline with that of females collected from Rhode Island, USA. Few other studies have compared the fecundities of marine invertebrates from invasive populations with those found in native populations. For both populations studied, fecundities increased with increasing shell length. However, contrary to expectations, size‐related fecundities were significantly higher for Norwegian females than for Rhode Island females, with Norwegian females producing larger egg capsules and a greater number of embryos per capsule, but not a greater number of egg capsules per brood. Current evidence suggests that at the northern extreme of its invaded range, the fecundity of C. fornicata is increased rather than compromised.

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“…Understanding the potential effects of climate change on the timing of life-history events such as the onset of gametogenesis, spawning, hatching and larval metamorphosis is important for benthic ecology but also for aquaculture and fisheries production. The phenology of these key life-history events has been investigated in several ecosystems and in many species (e.g., Beukema et al, 2009;Menge et al, 2009;Shephard et al, 2010;Valdizan et al, 2011;Morgan et al, 2013), although these studies often had limited spatial and/or temporal resolution.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

New insights into the reproductive cycle of two Great Scallop populations in Brittany (France) using a DEB modelling approach

Gourault

Lavaud

Pecquerie

et al. 2019

Journal of Sea Research

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The present study aimed to improve understanding of the environmental conditions influencing the reproductive cycle of the great scallop Pecten maximus in two locations in Brittany (France). We also evaluated potential consequences of future climate change for reproductive success in each site. We simulated reproductive traits (spawning occurrences and synchronicity among individuals) of P. maximus, using an existing Dynamic Energy Budget (DEB) model. To validate and test the model, we used biological and environmental datasets available for the Bay of Brest (West Brittany, France) between 1998 and 2003. We also applied the scallop DEB model in the Bay of Saint-Brieuc (North Brittany, France) for the same period (1998-2003) to compare the reproductive cycle in different environmental conditions. In order to accurately model the P. maximus reproductive cycle we improved the scallop DEB model in two ways: through (1) energy acquisition, by incorporating microphytobenthos as a new food source; and (2) the reproductive process, by adding a new state variable dedicated to the gamete production. Finally, we explored the effects of two contrasting IPCC climate scenarios (RCP2.6 and RCP8.5) on the reproductive cycle of P. maximus in these two areas at the 2100 horizon. Please note that this is an author-produced PDF of an article accepted for publication following peer review. The definitive publisher-authenticated version is available on the publisher Web site. phenology through an earlier onset of spawning by 20 to 44 days depending on the year. Highlights ► We aimed at better understanding and quantifying the effect of environmental variables (temperature and food sources) on the reproduction variability of the Great Scallop Pecten maximus in Brittany. ► We improved an existing scallop-DEB model at two different levels, by adding a new food source and a more detailed reproduction module. ► We compared reproductive traits of the Great Scallop in two Brittany locations for the period 1998-2003 and we made forecasts at the 2100 horizon within a context of ocean warming. ► We evidenced two different effects of the increase of seawater temperature depending on the location: a most efficient autumnal last spawning in the Bay of Brest and an earlier onset of spawning in the Bay of Saint-Brieuc.

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Evidence that rising coastal seawater temperatures increase reproductive output of the invasive gastropod Crepidula fornicata

Cited by 19 publications

References 48 publications

Subtidal benthic megafauna in a productive and highly urbanised semi-enclosed bay (Ría de Vigo, NW Iberian Peninsula)

Subtidal benthic megafauna in a productive and highly urbanised semi-enclosed bay (Ría de Vigo, NW Iberian Peninsula)

Fecundity of the invasive marine gastropodCrepidula fornicatanear the current northern extreme of its range

New insights into the reproductive cycle of two Great Scallop populations in Brittany (France) using a DEB modelling approach

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