Leptodiaptomus ashlandi

Species of crustacean From Wikipedia, the free encyclopedia

Leptodiaptomus ashlandi

Leptodiaptomus ashlandi is a calanoid copepod zooplankton native to the Laurentian Great Lakes and their basin.

Quick Facts Scientific classification, Binomial name ...
Leptodiaptomus ashlandi
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Female and male L. ashlandi
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Copepoda
Order: Calanoida
Family: Diaptomidae
Genus: Leptodiaptomus
Species:
L. ashlandi
Binomial name
Leptodiaptomus ashlandi
(Marsh, 1893)
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Distribution

Leptodiaptomus ashlandi is a zooplankton species widely distributed across Canada and the northern half of the United States in large deep lakes. It occurs in all the Great Lakes.[1]

Morphology

Adult females of L. ashlandi can be distinguished by their two-segmented urosome and asymmetrical, rounded metasomal wings. Males are characterized by a large lateral spine on leg 5, located in the proximal third of the terminal segment, and by the presence of a slender process on the third segment from the distal end of the right antennule.[2] This species is morphologically similar to other leptodiaptomids (Leptodiaptomus minutus, L. sicilis) and skistodiaptomids (Skistodiaptomus oregonensis).

Ecology

Leptodiaptomus ashlandi are known prey items for a number of native and non-native Great Lakes fishes. They are also prey items for other invertebrate zooplankton. Remains have been found within gut-contents of Mysis diluviana[3] and are trophically below Limnocalanus macrurus.[4]

References

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