Shifts from native to non-indigenous mussels: Enhanced habitat complexity and its effects on faunal assemblages

Gestoso, Ignácio; Arenas, Francisco; Rubal, Marcos; Veiga, Puri; Peña, M.; Olabarria, Celia

doi:10.1016/j.marenvres.2013.05.015

Cited by 33 publications

(29 citation statements)

References 54 publications

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“…The Mediterranean mussel Mytilus galloprovincialis Lamarck 1819 is a widespread filterfeeding bivalve along the Atlantic rocky shores of the Iberian Peninsula, with a relevant role in intertidal food webs [16]. It is considered an ecosystem engineer species because it maintains useful habitat for other organisms, enhancing the biodiversity [17,18]. This species has long been harvested for food and bait and is now severely exploited in many European countries as Italy, Spain and Portugal [19].…”

Section: Introductionmentioning

confidence: 99%

The role of urbanisation in affecting Mytilus galloprovincialis

et al. 2020

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Urbanisation is considered as one of the most critical and widespread threats to coastal marine ecosystems. The aim of this study was to compare the density, percentage cover, thickness of clumps, condition index and size-frequency distribution of Mytilus galloprovincialis between urban and non-urban shores, at nested spatial scales, in the Northern Portuguese coast. M. galloprovincialis was selected as model because it is economically and ecologically relevant. Moreover, the relationship between mussel size and the other variables (i.e. density, percentage cover, thickness and condition index) were investigated. Mussels on urban shores showed a smaller density and a greater frequency of larger individuals. A significant negative correlation between mussel length with density and with thickness of clumps was also found. Our results seem to indicate that recruitment has declined on urban shores and, as a result, intraspecific competition is also smaller, leading to more resources being available for a fewer individuals which can reach larger sizes. As mussel beds support a great biodiversity of invertebrates and provide many ecosystem services, urbanisation may have indirect effects on communities associated with mussels. Understanding the vulnerability of mussel beds to urbanisation could inform management.

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Section: Introductionmentioning

confidence: 99%

The role of urbanisation in affecting Mytilus galloprovincialis

et al. 2020

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“…It has also spread to the inner part of the Galician Rias Baixas (NW Spain) [ 34 ], where it co-occurs with the commercially-important mussel M . galloprovincialis , forming monospecific and mixed patchy aggregations of differing densities on diverse substrates [ 35 ]. In this environment, facilitative rather than competitive interactions between juveniles of the two species occur, although the interactions vary depending on the environmental context [ 36 ].…”

Section: Introductionmentioning

confidence: 99%

Response of Two Mytilids to a Heatwave: The Complex Interplay of Physiology, Behaviour and Ecological Interactions

et al. 2016

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Different combinations of behavioural and physiological responses may play a crucial role in the ecological success of species, notably in the context of biological invasions. The invasive mussel Xenostrobus securis has successfully colonised the inner part of the Galician Rias Baixas (NW Spain), where it co-occurs with the commercially-important mussel Mytilus galloprovincialis. This study investigated the effect of a heatwave on the physiological and behavioural responses in monospecific or mixed aggregations of these species. In a mesocosm experiment, mussels were exposed to simulated tidal cycles and similar temperature conditions to those experienced in the field during a heat-wave that occurred in the summer of 2013, when field robo-mussels registered temperatures up to 44.5°C at low tide. The overall responses to stress differed markedly between the two species. In monospecific aggregations M. galloprovincialis was more vulnerable than X. securis to heat exposure during emersion. However, in mixed aggregations, the presence of the invader was associated with lower mortality in M. galloprovincialis. The greater sensitivity of M. galloprovincialis to heat exposure was reflected in a higher mortality level, greater induction of Hsp70 protein and higher rates of respiration and gaping activity, which were accompanied by a lower heart rate (bradycardia). The findings show that the invader enhanced the physiological performance of M. galloprovincialis, highlighting the importance of species interactions in regulating responses to environmental stress. Understanding the complex interactions between ecological factors and physiological and behavioural responses of closely-related species is essential for predicting the impacts of invasions in the context of future climate change.

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“…This suggests that structural differences between mussel bed edges and interiors are not large enough to be relevant to invertebrates (cf. previous studies comparing morphologically different mussel species or those where mussel size and clumping were manipulated to produce sharp differences in mussel bed structure; e.g., Palomo et al 2007;Gestoso et al 2013). Similarly, although sediment availability was higher in the interior of mussel beds, there were no differences in the density of sedimentdependent species, such as the polychaete Boccardia polybranchia.…”

Section: Discussionmentioning

confidence: 88%

Edge function in patchy mussel bed habitats: variation across nearby rocky shore sites

Soria

Gutiérrez

Gonzalez

et al. 2021

Preprint

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Mussels form dense three-dimensional beds that serve as habitat to other species. In rocky shores, these beds are often interspersed by gaps due to patchy dislodgement/mortality caused by the action of waves, predators, and/or extreme temperatures. Although mussel patches and gaps are known to support distinctive invertebrate communities, variations in invertebrate habitat function between the interior and edges of mussel patches and gaps were not yet examined. Here, we evaluated variations in habitat properties and invertebrate composition between the edge and interior of mussel (Brachidontes rodriguezii) patches and gaps at three rocky shore sites in the Southwestern Atlantic. Our results indicate that the interior and edge of mussel patches differ in terms of mussel size and density (i.e., a surrogate of habitat structure) and the amount of sediments they accumulate. However, this does not directly translate into consistent differences on temperature, desiccation, and invertebrate composition across sites. As it concerns to gaps, we generally observed increased limpet (Siphonaria lesonii) densities at their edges, which suggests that they encounter favourable conditions by the perimeter of mussel patches. The lack of consistent edge effects on the invertebrates of mussel patches suggests that their species composition would remain largely unaffected by expected increases in gap and edge habitat formation due to ongoing increases in the frequency and magnitude of storms and heat waves. Yet, if increased availability of edge habitats leads to increased overall density of limpets in these rocky shores, then changes could be expected in algal production, composition, and dynamics.

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Shifts from native to non-indigenous mussels: Enhanced habitat complexity and its effects on faunal assemblages

Cited by 33 publications

References 54 publications

The role of urbanisation in affecting Mytilus galloprovincialis

The role of urbanisation in affecting Mytilus galloprovincialis

Response of Two Mytilids to a Heatwave: The Complex Interplay of Physiology, Behaviour and Ecological Interactions

Edge function in patchy mussel bed habitats: variation across nearby rocky shore sites

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