Impact of an introduced Crustacean on the trophic webs of Mediterranean wetlands

Geiger, Walter; Alcorlo, Paloma; Baltanás, Ángel Luis; Montes, Carlos

doi:10.1007/1-4020-3870-4_6

Cited by 59 publications

(109 citation statements)

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“…This invasive species is present in the Ebro and Xúquer basins and it is still spreading, mainly because of the fishing-related transport (boats, shoes, car tires), even though several control measures are strict and operative in all the territory where it is found (Durán Lalaguna and Anadón Marco, 2008). Other examples of aquatic invasive invertebrates in the area are the American crayfish Procambarus clarkii (Girard, 1852) (which is widespread and not only related to reservoirs but to all kind of water systems) and molluscs such as the snail Pomacea insularum (d'Orbigny, 1835), which produces large ecological and agricultural disturbances in the Ebro Delta, or the clam Corbicula fluminea (Müller, 1774) (Geiger et al 2005;Pérez-Quintana, 2008;MMAMRM, 2011). Although riverine ostracods in eastern Spain have been studied before (Mezquita et al, 1999(Mezquita et al, , 2001, there is not any comprehensive survey of this widespread crustacean group in Iberian or European reservoirs hitherto.…”

Section: Introductionmentioning

confidence: 99%

Artificial dam lakes as suitable habitats for exotic invertebrates: Ostracoda ecology and distribution in reservoirs of the Eastern Iberian Peninsula

Escrivá

Rueda

Armengol

et al. 2014

Knowl. Managt. Aquatic Ecosyst.

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Key-words:ostracoda, exotic species, reservoirs, Spain, benthos Reservoirs are the most common deep lakes in Spain, as a consequence of water needs and dry climate. Although these aquatic systems can play an important ecological role in such an area with few large natural lakes, they can also provide new habitats for exotic species, which can colonize ecosystems that native species have not explored yet. Here we present our results for a biannual survey of the ostracod fauna from 24 reservoirs in Xúquer River basin. We check which variables affect ostracod presence, test for differences between winter and summer assemblages, and compare our data with previous available ostracod records from the same river drainage network. Our results reveal that ostracod presence is positively related to high diversity of the invertebrate community and reservoir volume, and negatively with phosphorus concentration. Among the 22 species found, it is noteworthy the first Iberian record of Ilyocypris getica and the second European record of Candonocypris novaezelandiae. Ostracod assemblages significantly vary between summer and winter, and strong differences are found between ostracod communities of reservoirs and those from their connected rivers. Remarkably higher frequency of exotic species in the reservoirs confirms previous findings about the facilitation that artificial ecosystems confer to aquatic invasions. RÉSUMÉ Les lacs de barrage comme habitats appropriés pour les invertébrés exotiques : écologie et distribution des ostracodes dans les réservoirs dans l'Est de la péninsule ibérique Mots-clés :ostracodes, espèces exotiques, réservoirs, Espagne, benthosLes réservoirs sont les plus courants lacs profonds en Espagne, en réponse aux besoins en eau et au climat sec. Bien que ces systèmes aquatiques puissent jouer un rôle écologique important dans une région avec peu de grands lacs naturels, ils peuvent aussi fournir de nouveaux habitats pour les espèces exotiques, qui peuvent coloniser ces écosystèmes que les espèces indigènes n'ont pas encore explorés. Ici, nous présentons les résultats d'un suivi semestriel de la faune d'ostracodes de 24 réservoirs dans le bassin de la rivière Xúquer. Nous recherchons quelles variables affectent la présence des ostracodes, testons les différences entre les assemblages d'hiver et d'été, et comparons nos données avec des données antérieures d'ostracodes disponibles du même bassin versant. Nos résultats révèlent que la présence des ostracodes est positivement liée à la grande diversité

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Section: Introductionmentioning

confidence: 99%

Artificial dam lakes as suitable habitats for exotic invertebrates: Ostracoda ecology and distribution in reservoirs of the Eastern Iberian Peninsula

Escrivá

Rueda

Armengol

et al. 2014

Knowl. Managt. Aquatic Ecosyst.

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“…On the other hand, non-indigenous crayfish threaten human health and the health of domesticated or semi-domesticated animals. For example, P. clarkii often lives in areas contaminated by sewage and toxic industrial residues and accumulates high heavy metal concentrations in its tissues (Geiger et al, 2005); it consumes Cyanobacteria that may produce lethal animal and human intoxications (Carmichael, 1988); it may be the agent of transmission of the bacterium Francisella tularensis (McCoy and Chapin) Doroféev, the causative agent of human tularemia (possibly responsible of an outbreak of tularemia in Spain in 1997, affecting about 600 patients; Anda et al, 2001); and it is an intermediate host of helminth parasites of vertebrates (Gherardi, 2007).…”

Section: > Overexploitation Of the Indigenous Stocksmentioning

confidence: 99%

Towards a sustainable human use of freshwater crayfish (Crustacea, Decapoda, Astacidea)

Gherardi

2011

Knowl. Managt. Aquatic Ecosyst.

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Key-words: direct and indirect uses, surrogate species, option values, existence and bequest values, Crustacea Decapoda AstacideaTo face the severe loss in biodiversity recorded in freshwater crayfish (Crustacea, Decapoda, Astacidea), there is an increasing awareness that the CBD's concept of the sustainable use of natural resources should be applied also to this large assemblage of species. This review paper will synthesize the several uses we make or have made of crayfish with the purpose of pinpointing where sustainability is desirable and feasible. Uses are here classified as direct (i.e. consumption and production) and indirect. The latter uses refer to the recreational, cultural, ethical, aesthetic, scientific and education values of crayfish. An additional indirect use regards the environmental key role this taxon plays. Several examples, mostly related to Europe, will be provided to illustrate the importance of crayfish to human societies, culture and history. The potential of assigning a non-use value to them will be finally discussed. Pour faire face à la perte de biodiversité enregistrée pour les écrevisses d'eau douce (Crustacea, Decapoda, Astacidea), il y a une prise de conscience accrue que le concept de bioconservation (CBD) pour l'emploi durable des ressources naturelles devrait s'appliquer à ce large assemblage d'espèces. Cette revue veut synthétiser les nombreux usages que nous faisons ou avons faits des écrevisses avec le but de mettre le doigt sur les cas où la durabilité est souhaitable et faisable. Les usages sont classés ici en directs (i.e. consommation et élevage) et indirects. Ces derniers usages concernent la valeur récréative, culturelle, éthique, esthétique, scientifique et éducative des écrevisses. Un usage supplémentaire indirect concerne le rôle environnemental clé que ce taxon joue. Plusieurs exemples, la plupart pris en Europe, sont cités pour illustrer l'importance des écrevisses pour les sociétés humaines, leur culture et leur histoire. La possibilité de leur attribuer une valeur de non-usage est finalement discutée. RÉSUMÉ

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“…There are a number of examples where invasive decapod crustaceans have impacted trophic relationships in their invaded habitat. For example, Procambarus clarkii (Girard, 1852) has become a common prey item for several native predators in the Mediterranean (Geiger et al, 2005), whereas in Japan, the invasive P. leniusculus consumes a potential competitor, the native Cambaroides japonicus (de Haan, 1841), which could contribute to species replacement (Nakata & Goshima, 2006). Other trophic effects of invasive decapods have also been observed in C. maenas.…”

Section: Introductionmentioning

confidence: 99%

Flexible prey handling, preference and a novel capture technique in invasive, sub-adult Chinese mitten crabs

2016

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Eriocheir sinensis (Crustacea: Brachyura: Varunidae) is one of only two crabs on the world's list of 100 most invasive aquatic invertebrates. This crab has successfully invaded NE Europe as well as the United States, eastern Canada, southern Iraq and Tokyo Bay, Japan. In England, the River Thames population of E. sinensis continues to increase in numbers and disperse westward upstream, although little is known about foraging. The present study undertook a preference and prey handling study of sub-adult mitten crabs collected from the Thames. A digital camcorder, capable of detecting infrared light, was used in the laboratory overnight to identify crab food preference, document prey handling times and record behaviour. The test prey species, namely the amphipod Gammarus zaddachi, and two species of gastropod molluscs, Theodoxus fluviatilis and Radix peregra, were collected in the same habitat as the crabs, and all were consumed under laboratory conditions. Eriocheir were able to capture mobile G. zaddachi using a novel prey capture technique not previously described in brachyurans and use different skills for handling each prey species. This flexibility in prey handling may be an important contributory factor in their freshwater invasive capacity. Results indicated that the crabs had a preference for G. zaddachi which were consumed most frequently and preferentially over both mollusc species. Prey choice may be based on maximising net energy gain as consuming G. zaddachi was shown to provide the highest rate of potential energy consumption by the crab due, in part, to a much shorter handling time than for both species of snails.

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Impact of an introduced Crustacean on the trophic webs of Mediterranean wetlands

Cited by 59 publications

References 90 publications

Artificial dam lakes as suitable habitats for exotic invertebrates: Ostracoda ecology and distribution in reservoirs of the Eastern Iberian Peninsula

Artificial dam lakes as suitable habitats for exotic invertebrates: Ostracoda ecology and distribution in reservoirs of the Eastern Iberian Peninsula

Towards a sustainable human use of freshwater crayfish (Crustacea, Decapoda, Astacidea)

Flexible prey handling, preference and a novel capture technique in invasive, sub-adult Chinese mitten crabs

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