Effect of temperature on physiology and bioenergetics of adult Harris mud crab Rhithropanopeus harrisii (Gould, 1841) from the southern Baltic Sea

Hegele-Drywa, Joanna; Normant, Monika

doi:10.2478/s13545-014-0136-9

Cited by 2 publications

(4 citation statements)

References 52 publications

(65 reference statements)

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“…Our study demonstrated that temperature plays an important role in modulating the effects of the invasive mud crab R. harrisii on native F. vesiculosus stands and associated invertebrates in the northeastern Baltic Sea. The impact of the crab was more pronounced at higher temperatures, suggesting that the presence of the invader has negative consequences for native invertebrate species, particularly under summer conditions when the metabolic demands and food intake requirements of the invader are higher [49].…”

Section: Discussionmentioning

confidence: 99%

Effects of an Invasive Mud Crab on a Macroalgae-Dominated Habitat of the Baltic Sea under Different Temperature Regimes

2023

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The risks imposed by biological invasions on marine ecosystems are increasing worldwide. The mud crab Rhithropanopeus harrisii has recently expanded its distribution to the northeastern Baltic Sea, where low predatory pressures and the absence of functionally similar competitors favored the establishment of the species. Few studies have addressed the effects of the mud crab on Baltic benthic communities and habitats. Even fewer have looked at the consequences of the invader on habitats dominated by Fucus vesiculosus, the main habitat-forming macrophyte in the Baltic Sea. The present study experimentally analyzed, under laboratory conditions, the effects of R. harrisii on Baltic F. vesiculosus habitats and associated communities under different temperatures simulating summer and winter regimes. Our results show that the effects of the mud crab are modulated by temperature, being more pronounced under summer conditions when the metabolic demands and food intake requirements are higher. The experiment provided new insights into the capacity of R. harrisii to disrupt recruitment in native snail populations, jeopardizing the persistence of healthy populations of key grazers in F. vesiculosus habitats. Moreover, our results conclusively demonstrated the capacity of the invader to decimate native blue mussel populations. The impacts on functionally relevant invertebrates can have far-reaching ecological consequences, altering the food web and disrupting entire coastal ecosystems in the Baltic Sea.

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Section: Discussionmentioning

confidence: 99%

Effects of an Invasive Mud Crab on a Macroalgae-Dominated Habitat of the Baltic Sea under Different Temperature Regimes

2023

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“…On the other hand, the round goby retained most of its amphipod feeding activity in a colder environment. Such temperature-induced differences in feeding may reflect the more southerly origin of round goby compared with mud crab (Lee & Johnson, 2005; Hegele-Drywa & Normant, 2014).…”

Section: Discussionmentioning

confidence: 99%

“…Water temperature affects species' metabolic demands and predation rates (Lee & Johnson, 2005) with maximum feeding rates coinciding with the species' thermal optimum (Iacarella et al , 2015). Temperature optima for the more southern round goby and the more northern mud crab are recorded at 26 and 20°C, respectively (Lee & Johnson, 2005; Hegele-Drywa & Normant, 2014). Thus, temperature may set interaction strength among invasive predators, modify predation rates through species-specific temperature-consumption responses and thereby define overall impacts of novel predators on local benthic invertebrate communities (Oyugi et al , 2012).…”

Section: Introductionmentioning

confidence: 99%

“…(2) Temperature is expected to affect their feeding rates differentially. This is because the round goby has a more southerly origin and therefore its thermal optimum is higher as compared with the mud crab (Lee & Johnson, 2005; Hegele-Drywa & Normant, 2014). Consequently, the round goby is likely to be more affected by temperature change than the mud crab.…”

Section: Introductionmentioning

confidence: 99%

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Experimental evaluation of the effects of the novel predators, round goby and mud crab on benthic invertebrates in the Gulf of Riga, Baltic Sea

et al. 2017

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The number of non-indigenous aquatic species (NIS) has rapidly increased globally. The majority of published evidence on the effects of NIS on local communities is from single species studies in which the interactive effects of NIS are not considered. Here we present experimental evidence of separate and interactive effects of two widespread non-indigenous benthic predators, the round goby (Neogobius melanostomus) and the North American mud crab (Rhithropanopeus harrisii) on benthic invertebrate communities in a shallow coastal ecosystem of the Gulf of Riga, the Baltic Sea. The two species have recently colonized multiple sub-basins of the Baltic Sea and due to their rapid range expansion, increasing densities and local functional novelty, they are expected to have strong separate or interactive effects on native communities. Our laboratory experiment demonstrated that round goby and mud crab exerted a significant predation pressure on different benthic invertebrate species and the effects of the studied predators were largely independent. Predation was stronger at higher temperature compared with low temperature treatment. Among the studied invertebrate species gammarid amphipods were consumed the most. Interestingly, round goby did not prey on the mud crabs despite a large size difference of the studied predators.

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Effect of temperature on physiology and bioenergetics of adult Harris mud crab Rhithropanopeus harrisii (Gould, 1841) from the southern Baltic Sea

Cited by 2 publications

References 52 publications

Effects of an Invasive Mud Crab on a Macroalgae-Dominated Habitat of the Baltic Sea under Different Temperature Regimes

Effects of an Invasive Mud Crab on a Macroalgae-Dominated Habitat of the Baltic Sea under Different Temperature Regimes

Experimental evaluation of the effects of the novel predators, round goby and mud crab on benthic invertebrates in the Gulf of Riga, Baltic Sea

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