Acanthocyclops robustus external morphology: How many morphs?

References

• Comita, G. W. & Mcnett, S. J., 1976: The post-embryonic development instars of Diaptomus oregonensis Lilljeborg, 1889 (Copepoda). — Crustaceans 30: 123–163.
   Google Scholar
• Czaika, S. C., 1982: Identification of nauplii N1-N6 and copepodids CI-CVI of the Great Lakes calanoid and cyclopoid copepods (Calanoida, Cyclopoida, Copepoda). — J. Great Lakes Res. 8 (3): 439–469.
   Google Scholar
• Dahms, H. — U. & Fernando, C. H., 1992: Naupliar development of Mesocyclops aequatorialis similis and Thermocyclops consimilis (Copepoda: Cyclopoida) from Lake Awasa, a tropical rift valley lake in Ethiopia. — Can J. Zool. 70: 2283–2297.
   Web of Science ®Google Scholar
• Dahms, H. — U. & Fernando, C. H. 1993: Naupliar development of Mesocyclops cf. thermocyclopoides Harada, 1931 and Thermocyclops dedpiens (kiefer, 1929) (Copepoda: Cyclopoida) from Beira Lake, Sri Lanka. — J. of Plank. Res. 15 (1): 9–26.
   Google Scholar
• Dussart, B. H. & Fernando, C. H., 1990: A review of the taxonomy of five Ontario genera of freshwater cyclopoid Copepoda (Crustacea). — Can. J. Zool. 68: 2594–2604.
   Google Scholar
• Einsle, U. K., 1989: The identification of copepodid instars of some calanoid and cyclopoid cope- pods of Lake Konstanz, Federal Republic of Germany. — Crustaceana 57 (1): 79–87.
   Google Scholar
• Elgmork, K., 1959: Seasonal occurrence of Cyclops strennus strennus in relation to environment in small water bodies in southern Norway. — Folia Limnol. Scand. 11: 1–196.
   Google Scholar
• Fryer, G., 1985: An ecological validation of a taxonomic distinction: the ecology of Acanthocyclops vernalis and A. rohustus (Crustacea: Copepoda). — Zoological J. of the Linnean Soc. 84: 165–180.
   Web of Science ®Google Scholar
• Gurney, R., 1933: British Freshwater Copepoda. Vol. III. — Ray Society, London.
   Google Scholar
• Kiefer, F., 1960: Ruderfußkrebse (Copepoden). — Frankh'sche Verlagsbuchhandlung, W. Keller und Co., 97 pp., Stuttgart.
   Google Scholar
• Kiefer, F. 1973: Vergleichende Studien und Nauplien verschiedener Cyclopiden. — Mem. Ist. Ital. Idrobiol. Dott Marco di Marchi 30: 45–60.
   Google Scholar
• Kiefer, F. 1978: Freilebende Copepoda. — In: Das Zooplankton der Binnengewässer 26 (2): 1–343.
   Google Scholar
• Lint, G. M., 1934: De copepoden, cladoceran en ostracoden van het zoete en brakke water van Nederland en Haar beteekenis als vischvoedsel. — Verh. en Rapp. RIVO 1 (3).
   Google Scholar
• Lorensen, M. W., 1980: Use of chlorophyll-Secchi disk relationships. — Limnol. Oceanogr. 25 (2): 371–372.
   Google Scholar
• Maier, G., 1994: Patterns of life history among cyclopoid copepods of central Europe. — Freshwater Biol. 31: 77–86.
   Web of Science ®Google Scholar
• Parandela, P. L., 1988: Environment Atlas. Explanation news (I 16.1 to I 16.4): Chemical quality of subterranean waters. — Dir. Geral. Rec. Nat., Lisbon: 1–28 (in Portuguese).
   Google Scholar
• Purasjoki, K. & Viljamaa, H., 1984: Acanthocyclops robustus (Copepoda, Cyclopoida) in plankton of the Helsinkii Sea area, and a morphological comparison between A. robustus and A. vernalis. — Finnish Marine Res. 250: 33–44.
   Google Scholar
• Quadrado, M. F. L., 1990: The reservoirs of the Tagus river basin. — A bibliographic review. — Relat. N.2, A/IV série. Direc. Geral dos Rec. Nat., Projecto Tejo, Lisbon, 183 pp. (in Portuguese).
   Google Scholar
• Reed, E. B., 1986: Aestival phenology of an Acanthocyclops (Crustacea, Copepoda) in a Colorado tarn with remarks on the vernalis-robustus complex. — Hydrobiologia 139: 127–133.
   Google Scholar
• Sars, G. O., 1918: An Account of the Crustacea of Norway. 6 Copepoda, Cyclopoida. — Bergen Museum.
   Google Scholar
• Vijverberg, J., 1977: Population structure, life histories and abundance of copepods in Tjeukemeer, The Netherlands. — Freshwater Biol. 7: 579–597.
   Web of Science ®Google Scholar
• Wingaard, G. A., 1988: Geographical variation in dormancy in a copepod: evidence from population crosses. — Hydrobiologia 167/168: 367–374.
   Google Scholar