Distribution and ecological relations among the alien crab, Percnon gibbesi (H. Milne-Edwards 1853) and autochthonous species, in and out of an SW Mediterranean MPA

Félix-Hackradt, Fabiana Cézar; Sanchis-Martínez, A. M.; Hackradt, Carlos Werner; Treviño-Otón, J.; García-Charton, José Antonio

doi:10.1007/s10750-017-3357-2

Cited by 6 publications

(4 citation statements)

References 61 publications

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“…These results are in contrast to observations by Félix‐Hackradt, Sanchis‐Martínez, Hackradt, Treviño‐Otón, and García‐Charton () who reported that although P. gibbesi showed a fine‐scale variability, protection measures did not negatively affected its abundance within the marine reserve of Cabo de Palos‐Islas Hormigas (Spain). Part of this discrepancy could be explained by the different level of protection considered in the case studies: the no‐take zones at Ustica Island and Capo Gallo Isola delle Femmine MPAs and the partial protection at Cabo de Palos‐Islas Hormigas Marine Reserve.…”

Section: Discussioncontrasting

confidence: 99%

“…Part of this discrepancy could be explained by the different level of protection considered in the case studies: the no‐take zones at Ustica Island and Capo Gallo Isola delle Femmine MPAs and the partial protection at Cabo de Palos‐Islas Hormigas Marine Reserve. As stated by Félix‐Hackradt et al (), human activities allowed within MPAs with multiple‐use areas (i.e. artisanal fishing and recreational activities) can cause severe damage to trophic relationships (e.g.…”

Section: Discussionmentioning

confidence: 99%

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Native predators control the population of an invasive crab in no‐take marine protected areas

Noè

Gianguzza

Trapani

et al. 2018

Aquatic Conservation

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1. The resistance of an ecosystem to species invasion is considered to be related to the abundance and diversity of native species (i.e. biotic resistance hypothesis).Theory predicts that the high native diversity in pristine systems can hinder the establishment and/or the spread of non-native species through direct and indirect mechanisms (e.g. through competitive and/or predatory interactions).2. Here we tested whether predation provides higher resistance to invasion by the Percnidae crab Percnon gibbesi (H. Milne Edwards, 1853) in protected native communities, compared with exploited ones. Specifically, this study aimed to compare: (i) the abundance and diversity of potential predator assemblages of P. gibbesi; (ii) the predation pressure on P. gibbesi; and (iii) the density of this species in two protected and two unprotected sites along the northern Sicilian coast (Italy).3. The relative predation rate was assessed by manipulative tethering experiments conducted on two size classes of P. gibbesi using long and short tethers, both at protected and unprotected sites. 4. The abundance and diversity of the predators of P. gibbesi and the relative predation rate on tethered crabs were higher at protected than at unprotected sites, independent of crab size and tether length. The density of P. gibbesi was significantly lower in protected compared with unprotected sites. 5. These results suggest that the diversity and abundance of native predator assemblages directly affect the invasion success of P. gibbesi in the Mediterranean Sea.We provided experimental evidence that the restoration of predator assemblages confers 'biotic resistance' to no-take marine protected areas (MPAs) against P. gibbesi invasion. Our study confirms that no-take MPAs are effective in combating non-indigenous species (NIS) invasion, and that it is crucial to establish a long-term monitoring programme to limit the introduction of NIS and to control the spread of existing ones.

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Section: Discussioncontrasting

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Native predators control the population of an invasive crab in no‐take marine protected areas

Noè

Gianguzza

Trapani

et al. 2018

Aquatic Conservation

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“…Only one of the five species of decapods observed during this study, T. holthuisi, appears to associate exclusively with echinoids (Marin & Anker, 2009). However, Percnon gibbesi usually associates with echinoids of four species, especially Diadema antillarum, in the Caribbean Sea (Hayes et al, 2016), but it has not been reported associating with any echinoids in the Pacific Ocean or where it has been introduced in the Mediterranean Sea (Félix-Hackradt et al, 2018). Our observations confirm that P. gibbesi also associates with echinoids in the eastern Pacific Ocean.…”

Section: Decapod-echinoid Associationssupporting

confidence: 68%

The role of the length spines of echinoids in their association with crustacean and fish in Los Cabos, Baja California Sur, Mexico

et al. 2022

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Introduction: Echinoids (sea urchins) provide shelter for a variety of facultative or obligatory ectosymbionts. Objective: To evaluate the hypothesis that decapods and fishes prefer to associate with echinoid individuals and species that have longer spines. Methods: We visually studied the frequency of decapod crustaceans and fishes associated with echinoids in shallow water (< 4 m) and deeper water (5-20 m) at Los Cabos, Baja California Sur, Mexico, during 1-6 January 2019. Results: We inspected 1 058 echinoids of six species. Five decapod species associated with three species of echinoids. When compared with other echinoid species, in shallow water, decapods associated 5.1 times more often with the longest-spined echinoid Diadema mexicanum (7.0 times more decapods per individual D. mexicanum); in deeper water, association frequency was similar for all echinoid species. Fourteen fish species associated with four echinoid species. In shallow water, fishes associated 2.6 times more with D. mexicanum (4.5 times more fishes per individual). There was no preferred echinoid species in deeper water. Longer-spined D. mexicanum had more decapods and fishes. Associations were more frequent in shallow water. Multiple individuals and species of decapods and fish often associated together with a single D. mexicanum. The decapod that presumably is Tuleariocaris holthuisi showed a possible obligatory association with one of the equinoids (D. mexicanum); the other decapods and all fish species are facultative associates. Conclusion: Our results support the hypothesis that decapods and fishes associate most frequently with echinoid with the longest spines, presumably to reduce the risk of predation.

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“…As part of the concerned crustaceans, the mitten crab Eriocheir sinensis and the mud crab Rhithropanopeus harrisii are included in ABI, having been firstly detected in the Miño and Guadalquivir estuaries, respectively. The presence of the crab Percnon gibbesi in Spanish Mediterranean waters is noteworthy, where it has rapidly proliferated in the last 20 years [65,66], probably aided by shipping but also natural spread from its native range in the subtropical NE Atlantic. In WMED, the mud crab Dyspanopeus sayi is also relevant, with established populations in the Levantine-Balearic MRU.…”

Section: Discussionmentioning

confidence: 99%

Updating the National Baseline of Non-Indigenous Species in Spanish Marine Waters

et al. 2023

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The introduction of new non-indigenous species (NIS) in Spanish marine waters is addressed under Descriptor 2 of the European Union’s Marine Strategy Framework Directive. National baseline inventories of NIS have been compiled and updated for the three subregions (Western Mediterranean Sea, WMED; Bay of Biscay–Iberian Coast, ABI; Macaronesia, AMA) with data from 1800 to 2021. An overall of 574 species were identified with an alien, cryptogenic, crypto-expanding, or debatable status, mostly invertebrates (~65%) and primary producers (~22%). Of 412 alien species, 80.51% were reported in ABI, 67.82% in WMED, and 66.67% in AMA. Cryptogenic species are more abundant in the WMED (25.25%), compared to AMA (19.77%) and ABI (18.46%). ABI harbors more established species (62.56%) than AMA (45.2%) and WMED (43.56%), contrary to casual records (AMA 31.64%, WMED 23.76%, ABI 13.85%). Invasive species are more abundant (14.36%) in WMED. The ‘transport-stowaway’ pathway accounted for 142 (79.33%), 123 (67.58%), and 169 (85.21%) records in WMED, ABI, and AMA, respectively. The second most common pathway was ‘transport-contaminant’ related to mariculture (~10% of the total), prevalently in ABI with 42 species (23.08%). The Canary Islands stand out for species introduced through oil platforms from throughout the world. ‘Unaided’ was a relevant pathway of secondary introduction into the WMED, particularly of Lessepsian species progressing westwards. Temporal trends in newly introduced species show similar behavior among subregions.

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Distribution and ecological relations among the alien crab, Percnon gibbesi (H. Milne-Edwards 1853) and autochthonous species, in and out of an SW Mediterranean MPA

Cited by 6 publications

References 61 publications

Native predators control the population of an invasive crab in no‐take marine protected areas

Native predators control the population of an invasive crab in no‐take marine protected areas

The role of the length spines of echinoids in their association with crustacean and fish in Los Cabos, Baja California Sur, Mexico

Updating the National Baseline of Non-Indigenous Species in Spanish Marine Waters

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