The marbled crayfish (Decapoda: Cambaridae) represents an independent new species

Lyko, Frank

doi:10.11646/zootaxa.4363.4.6

Cited by 58 publications

(63 citation statements)

References 24 publications

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“…The peculiar marbled crayfish are triploid descendants of the sexually reproducing slough crayfish (Procambarus fallax; Martin et al 2010, Lyko 2017, Gutekunst et al 2018. Marbled crayfish represent the only known decapod crustacean capable of apomictic parthenogenesis (Scholtz et al 2003, Seitz et al 2005.…”

Section: Model Organismsmentioning

confidence: 99%

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Behavioral differences in an over‐invasion scenario: marbled vs. spiny‐cheek crayfish

et al. 2018

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New species often invade ecosystems already dominated by previous invaders. Ornamental freshwater crayfish, particularly parthenogenetic marbled crayfish (Procambarus virginalis), increasingly establish in European water bodies where they interact with resident native and non‐native species. Behavioral traits and behavioral syndromes can influence the outcome of these species interactions. The behavior of non‐native crayfish is often studied in notorious invaders but rarely in new and emerging species, although those provide the best opportunity for management. Activity, aggressiveness, and boldness have repeatedly been associated with invasion success and species displacement. Further, crayfish can adapt their behavior after they have established in the new range. We investigated whether marbled crayfish can displace the widely established spiny‐cheek crayfish (Orconectes limosus). Specifically, we compared their behavioral traits and evaluated whether these traits differ, using marbled crayfish populations from aquaria and the field and spiny‐cheek crayfish from the field. We staged agonistic encounters, measured activity levels, and recorded the response to a simulated threat of both species and both origins (field and aquarium) in laboratory trials. We found that in agonistic encounters, marbled crayfish were on average more aggressive than spiny‐cheek crayfish, even against larger opponents. Aggressiveness and activity were positively correlated, which is indicative for an aggression syndrome. Marbled crayfish from the field were less active than those from aquaria, but there was no difference in aggressiveness. Marbled crayfish often froze in response to a simulated threat, whereas spiny‐cheek crayfish reacted either offensively or defensively. These results from the laboratory illustrate potentially important behavioral mechanisms behind crayfish over‐invasions and show behavioral plasticity in a species where all known individuals are genetically identical. To better understand the invasion process in nature, the species’ reproductive biology and interactions with other members of the community should be considered. We conclude that the recent success of marbled crayfish in establishing new populations could be influenced by their behavioral flexibility and their potential to competitively persist in the presence of established invasive crayfish.

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Section: Model Organismsmentioning

confidence: 99%

“…The peculiar marbled crayfish are triploid descendants of the sexually reproducing slough crayfish ( Procambarus fallax ; Martin et al. , Lyko , Gutekunst et al. ).…”

Section: Introductionmentioning

confidence: 99%

Behavioral differences in an over‐invasion scenario: marbled vs. spiny‐cheek crayfish

et al. 2018

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“…1a) is a freshwater crayfish species 5 that holds a unique position among decapod crustaceans due to its parthenogenetic mode of reproduction 6 . Marbled crayfish are descendants of the sexually reproducing slough crayfish Procambarus fallax and reproduce by apomictic parthenogenesis 7,8 .…”

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confidence: 99%

Clonal genome evolution and rapid invasive spread of the marbled crayfish

et al. 2018

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The marbled crayfish Procambarus virginalis is a unique freshwater crayfish characterized by very recent speciation and parthenogenetic reproduction. Marbled crayfish also represent an emerging invasive species and have formed wild populations in diverse freshwater habitats. However, our understanding of marbled crayfish biology, evolution and invasive spread has been hampered by the lack of freshwater crayfish genome sequences. We have now established a de novo draft assembly of the marbled crayfish genome. We determined the genome size at approximately 3.5 gigabase pairs and identified >21,000 genes. Further analysis confirmed the close relationship to the genome of the slough crayfish, Procambarusfallax, and also established a triploid AA’B genotype with a high level of heterozygosity. Systematic fieldwork and genotyping demonstrated the rapid expansion of marbled crayfish on Madagascar and established the marbled crayfish as a potent invader of freshwater ecosystems. Furthermore, comparative whole-genome sequencing demonstrated the clonality of the population and their genetic identity with the oldest known stock from the German aquarium trade. Our study closes an important gap in the phylogenetic analysis of animal genomes and uncovers the unique evolutionary history of an emerging invasive species.

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“…The muscle tissue of 44 marbled crayfish P. virginalis (Lyko, 2017) was used in the study to investigate the influence of heavy metal ions on viability and metabolic enzyme activity. Crayfish were divided into 4 groups (n = 15).…”

Section: Methodsmentioning

confidence: 99%

“…Marbled crayfish Procambarus virginalis (Lyko, 2017) (earlier known as parthenogenetic form of Procambarus fallax f. virginalis Martin et al, 2010) (Decapoda, Cambaridae) are parthenogenetic crustaceans, found in 1990 in the German reservoirs [10][11][12][13]. Marbled crayfish was previously described as a subspecies of the American species Procambarus fallax (Hagen, 1870), the natural area of which covers the waters of Georgia and Florida (USA) [14,15].…”

Section: Introductionmentioning

confidence: 99%

The Influence of Heavy Metal Ions on the Viability and Metabolic Enzyme Activity of the Marbled Crayfish <i>Procambarus virginalis</i> (Lyko, 2017)

Marenkov

Prychepa

Kovalchuk

2018

ILNS

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Abstract. The article shows the results of studies on the influence of heavy metal ions (manganese, nickel, lead) on the viability and metabolic enzyme activity of marbled crayfish Procambarus virginalis (Lyko, 2017) (Decapoda). Due to the fact that marbled crayfish got into the reservoirs of the Dnipropetrovsk region in 2015, it was necessary to study the possibilities of its adaptation to environmental factors of reservoirs for further prediction of its distribution or even acclimatization under conditions of toxicological contamination of the ponds of the steppe Prydniprovya. In the experiment with marbled crayfish, chronic effects of various concentrations of heavy metal ions on the physiological state and enzyme activity were investigated. The obtained results showed that among the investigated heavy metals nickel ions influenced the weight indexes and mortality of crustaceans the most negatively. According to the results of the research, significant changes were noted in the individual biochemical parameters of marbled crayfish under the influence of manganese, lead and nickel ions. The most significant changes in the activity of lactate dehydrogenase were detected in muscle tissues affected by manganese and nickel ions. A significant decrease in the activity of succinate dehydrogenase in muscle of marbled crayfish was determined after the action of heavy metal ions. Investigation of changes in the activity of alkaline phosphatase under the influence of the ions of manganese, lead and nickel has its own characteristics, which indicates certain violations in the tissues of cell membranes. Changes in the activity of enzymes were also reflected in the overall protein content. In conclusion, changes in these parameters may indicate a rapid biochemical response of crustaceans to the toxic effects of heavy metals.

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The marbled crayfish (Decapoda: Cambaridae) represents an independent new species

Cited by 58 publications

References 24 publications

Behavioral differences in an over‐invasion scenario: marbled vs. spiny‐cheek crayfish

Behavioral differences in an over‐invasion scenario: marbled vs. spiny‐cheek crayfish

Clonal genome evolution and rapid invasive spread of the marbled crayfish

The Influence of Heavy Metal Ions on the Viability and Metabolic Enzyme Activity of the Marbled Crayfish <i>Procambarus virginalis</i> (Lyko, 2017)

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