Laboratory analysis of the habitat occupancy of the crab Rhithropanopeus harrisii (Gould) in an invaded ecosystem: The north-eastern Baltic Sea

Nurkse, Kristiina; Kotta, Jonne; Orav‐Kotta, Helen; Pärnoja, Merli; Kuprijanov, Ivan

doi:10.1016/j.ecss.2014.12.046

Cited by 18 publications

(8 citation statements)

References 33 publications

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“…One crab (average width of carapace was 1.3 cm corresponding to a typical length class of adult crabs in the study area) was added to each mesocom to achieve experimental densities (22 per m 2 ) corresponding to densities of crabs in infested areas (see result section). In the Gulf of Riga crabs are relatively stationary with estimated home range at 0.004 to 0.04 m 2 43 . This matches well with the spatial dimensions of mesocosms provided for crabs in the experiment (0.045 m 2 ).…”

Section: Methodsmentioning

confidence: 99%

Novel crab predator causes marine ecosystem regime shift

Kotta

Wernberg

Jänes

et al. 2018

Sci Rep

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The escalating spread of invasive species increases the risk of disrupting the pathways of energy flow through native ecosystems, modify the relative importance of resource (‘bottom-up’) and consumer (‘top-down’) control in food webs and thereby govern biomass production at different trophic levels. The current lack of understanding of interaction cascades triggered by non-indigenous species underscores the need for more basic exploratory research to assess the degree to which novel species regulate bottom-up and/or top down control. Novel predators are expected to produce the strongest effects by decimating consumers, and leading to the blooms of primary producers. Here we show how the arrival of the invasive crab Rhithropanopeus harrisii into the Baltic Sea – a bottom-up controlled ecosystem where no equivalent predators ever existed – appeared to trigger not only strong top-down control resulting in a decline in richness and biomass of benthic invertebrates, but also an increase in pelagic nutrients and phytoplankton biomass. Thus, the addition of a novel interaction – crab predation – to an ecosystem has a potential to reduce the relative importance of bottom-up regulation, relax benthic-pelagic coupling and reallocate large amounts of nutrients from benthic to pelagic processes, resulting in a regime shift to a degraded ecosystem state.

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Section: Methodsmentioning

confidence: 99%

Novel crab predator causes marine ecosystem regime shift

Kotta

Wernberg

Jänes

et al. 2018

Sci Rep

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“…It has been reported that crabs live in oysters reefs (in native habitats), under stones, in various plant debris, in mud and sand with shell, and even among Fucus macroalgae on hard bottom [Ryan, 1956;Turoboyski, 1978;Petersen, 2006;Fowler et al, 2013]. In the experiment they preferred vegetated boulders compared to unvegetated boulders or sandy habitats [Nurkse et al, 2015]. This indicates a highly opportunistic habitat choice; however the presence of shelter appears to be a key factor [Petersen, 2006].…”

Section: Habitats and Hiding Habitmentioning

confidence: 81%

In situ observations and census of invasive mud crab Rhithropanopeus harrisii (Crustacea: Decapoda: Panopeidae) applied in the Black Sea and the Sea of Azov

Zalota

Спиридонов²,

Kolyuchkina³

2016

Arthropoda Selecta

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“…In the Baltic, they live on: various plant debris; mud and sand with shell; and among Fucus macroalgae on hard bottom (Turoboyski, 1973; Fowler et al , 2013), which has been its preferred habitat during the experiments performed by Nurkse et al . (2015). However, the presence of various kinds of shelters appears to be the key factor (Petersen, 2006; Zalota et al , 2016a), while the patterns of shelter use and hiding habits vary significantly between different sizes and sex groups and localities (Zalota et al , 2016a).…”

Section: Resultsmentioning

confidence: 99%

Understanding and forecasting dispersal of non-indigenous marine decapods (Crustacea: Decapoda) in East European and North Asian waters

Спиридонов

Zalota

2017

J. Mar. Biol. Ass.

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A survey of publications and collections databases reveals a pattern of non-indigenous decapods distribution in the 13 seas around Russia and adjacent countries. No alien species were reported from Russian territorial waters and exclusive economic zone in the Japan, Okhotsk, west Bering and most of the Siberian shelf Seas. From the seas and their basins in East Europe, 13 alien species have been recorded, with seven of these yet to become established. Established or commonly occurring species can be categorized as: ‘global invaders’ (Chinese mitten crab,Eriocheir sinensisin the White, Baltic, Black, Azov and Caspian Seas; and Harris mud crab,Rhithropanopeus harrisiiin all mentioned seas, except the White Sea); ‘regional aliens’ (Palaemon adspersusandP. elegansin the Caspian Sea and the latter species in the Baltic); and ‘Arctic invaders’ (Kamchatka king crabParalithodes camtschaticusand snow crabChionoecetes opilio).Eriocheir sinensisis the most widely occurring alien decapod species, but there are no indications of an established population in East Europe. For this and other mentioned crab species, invasion history, distribution and important biological data are reviewed. In the seas where few or no native crab species have been present, Harris mud crab (in the Azov and Caspian Seas), Kamchatka crab (in the Barents Sea) and snow crab (in the Barents and Kara Seas) have shown rapid establishment (within two decades) of an invasive population throughout an entire basis or its significant part.

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Laboratory analysis of the habitat occupancy of the crab Rhithropanopeus harrisii (Gould) in an invaded ecosystem: The north-eastern Baltic Sea

Cited by 18 publications

References 33 publications

Novel crab predator causes marine ecosystem regime shift

Novel crab predator causes marine ecosystem regime shift

In situ observations and census of invasive mud crab Rhithropanopeus harrisii (Crustacea: Decapoda: Panopeidae) applied in the Black Sea and the Sea of Azov

Understanding and forecasting dispersal of non-indigenous marine decapods (Crustacea: Decapoda) in East European and North Asian waters

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