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Adaptations to the hyporheic in Aloninae (Crustacea: Cladocera): allocation of Alona protzi Hartwig, 1900 and related species to Phreatalona gen. nov.

Kay Van Damme (UGent) , Anton Brancelj and Henri Dumont (UGent)
(2009) Hydrobiologia. 618. p.1-34
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Abstract
Morphological study of Alona protzi Hartwig, 1900, Alona phreatica Dumont, 1983 and Alona smirnovi Petkovski & FloAner, 1972 reveals close affinities with Alona labrosa Vasiljeva & Smirnov, 1969. We separate these four species from the polyphyletic Alona Baird, 1843 (Anomopoda: Chydoridae). United under Phreatalona gen. nov., these taxa share primitive features on the limbs, together with specializations to a rheic life mode. Phreatalona contains some of the only true hyporheic taxa within the Cladocera. Endemism in two ancient lakes (P. smirnovi and P. labrosa) and a preference for river sediments in Europe (P. phreatica and P. protzi) suggest a long isolation from typical littoral/benthic biotopes. We discuss close links with southern vicariant Nicsmirnovius, the position of these (hypo)rheic chydorids within the subfamily and their affinities with Acroperus. We remark an independent evolution of external (habitus, postabdomen) vs. internal (limb) morphology in the protzi-complex. Phreatalona is likely tertiary in origin, evolving from a littoral alonine adapting to rheic and finally hyporheic environments. Baikal endemic P. labrosa is likely the most primitive species of the genus. We discuss adaptations and evolution in the hyporheic and the effect on dispersal and biogeography of Phreatalona.
Keywords
Phreatalona gen. n., Systematics, Stygobionts, Morphology, Chydoridae, Hyporheic zone, Cladocera

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MLA
Van Damme, Kay, Anton Brancelj, and Henri Dumont. “Adaptations to the Hyporheic in Aloninae (Crustacea: Cladocera): Allocation of Alona Protzi Hartwig, 1900 and Related Species to Phreatalona Gen. Nov.” Hydrobiologia 618 (2009): 1–34. Print.
APA
Van Damme, Kay, Brancelj, A., & Dumont, H. (2009). Adaptations to the hyporheic in Aloninae (Crustacea: Cladocera): allocation of Alona protzi Hartwig, 1900 and related species to Phreatalona gen. nov. Hydrobiologia, 618, 1–34.
Chicago author-date
Van Damme, Kay, Anton Brancelj, and Henri Dumont. 2009. “Adaptations to the Hyporheic in Aloninae (Crustacea: Cladocera): Allocation of Alona Protzi Hartwig, 1900 and Related Species to Phreatalona Gen. Nov.” Hydrobiologia 618: 1–34.
Chicago author-date (all authors)
Van Damme, Kay, Anton Brancelj, and Henri Dumont. 2009. “Adaptations to the Hyporheic in Aloninae (Crustacea: Cladocera): Allocation of Alona Protzi Hartwig, 1900 and Related Species to Phreatalona Gen. Nov.” Hydrobiologia 618: 1–34.
Vancouver
1.
Van Damme K, Brancelj A, Dumont H. Adaptations to the hyporheic in Aloninae (Crustacea: Cladocera): allocation of Alona protzi Hartwig, 1900 and related species to Phreatalona gen. nov. Hydrobiologia. 2009;618:1–34.
IEEE
[1]
K. Van Damme, A. Brancelj, and H. Dumont, “Adaptations to the hyporheic in Aloninae (Crustacea: Cladocera): allocation of Alona protzi Hartwig, 1900 and related species to Phreatalona gen. nov.,” Hydrobiologia, vol. 618, pp. 1–34, 2009.
@article{700507,
  abstract     = {{Morphological study of Alona protzi Hartwig, 1900, Alona phreatica Dumont, 1983 and Alona smirnovi Petkovski & FloAner, 1972 reveals close affinities with Alona labrosa Vasiljeva & Smirnov, 1969. We separate these four species from the polyphyletic Alona Baird, 1843 (Anomopoda: Chydoridae). United under Phreatalona gen. nov., these taxa share primitive features on the limbs, together with specializations to a rheic life mode. Phreatalona contains some of the only true hyporheic taxa within the Cladocera. Endemism in two ancient lakes (P. smirnovi and P. labrosa) and a preference for river sediments in Europe (P. phreatica and P. protzi) suggest a long isolation from typical littoral/benthic biotopes. We discuss close links with southern vicariant Nicsmirnovius, the position of these (hypo)rheic chydorids within the subfamily and their affinities with Acroperus. We remark an independent evolution of external (habitus, postabdomen) vs. internal (limb) morphology in the protzi-complex. Phreatalona is likely tertiary in origin, evolving from a littoral alonine adapting to rheic and finally hyporheic environments. Baikal endemic P. labrosa is likely the most primitive species of the genus. We discuss adaptations and evolution in the hyporheic and the effect on dispersal and biogeography of Phreatalona.}},
  author       = {{Van Damme, Kay and Brancelj, Anton and Dumont, Henri}},
  issn         = {{0018-8158}},
  journal      = {{Hydrobiologia}},
  keywords     = {{Phreatalona gen. n.,Systematics,Stygobionts,Morphology,Chydoridae,Hyporheic zone,Cladocera}},
  language     = {{eng}},
  pages        = {{1--34}},
  title        = {{Adaptations to the hyporheic in Aloninae (Crustacea: Cladocera): allocation of Alona protzi Hartwig, 1900 and related species to Phreatalona gen. nov.}},
  url          = {{http://dx.doi.org/10.1007/s10750-008-9607-6}},
  volume       = {{618}},
  year         = {{2009}},
}

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