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19 results for “Acanthocyclops”
Density of Acanthocyclops vernalis, Leptodiaptomus tyrelli and Daphnia pulicaria in Hidden Lake (Banff, AB, Canada) from 2014 to 2020
This data file is the combination of two data sets of two different methodology (The Derry lab and Fisher lab; see method section for differences). The density of three dominant species were assessed every summer during the same week from 2014 to 2020 by the Fisher lab in Hidden Lake, Banff National Park, Canada: the cyclopoid Acanthocyclops vernalis, the calanoid Leptodiaptomus tyrelli and the cladocera Daphnia pulicaria. An extra sampling effort was done by the Derry lab around the rotenone treatments. The objective of this study was to assess the effect of two rotenone application (in summer 2018 and 2019) on zooplankton populations.
Figure 10. Pairwise 12S in Molecular-genetic-based contribution to the taxonomy of the Acanthocyclops robustus group
Figure 10. Pairwise 12S rRNA sequence divergence within the americanus–robustus–vernalis complex. Genetic distance (Kimura 2-parameter) is compared between and within the four clades depicted in the tree of Figure 9. Note: Columns indicate mean values and bars indicate range (min.–max.).
Figure 6 in Molecular-genetic-based contribution to the taxonomy of the Acanthocyclops robustus group
Figure 6. Acanthocyclops americanus (Marsh) female neotype (A–C) and male allotype (4) from the terra typica, Madison, Wisconsin, USA. (A) Female Leg 5; (B) female antennal basipod frontal side; (C) female antennal basipod caudal side; (D) male Leg 4. Note: Scale bar 50 µm.
Figure 8 in Molecular-genetic-based contribution to the taxonomy of the Acanthocyclops robustus group
Figure 8. Pairwise COI sequence divergence within the americanus–robustus–vernalis complex. Genetic distance (Kimura 2-parameter) is compared between and within the three clades depicted in the tree of Figure 7. Note: Columns indicate mean values and bars indicate range (min.–max.).
Figure 7 in Molecular-genetic-based contribution to the taxonomy of the Acanthocyclops robustus group
Figure 7. Phylogenetic relationships based on maximum-likelihood analysis of mitochondrial COI sequences. Numbers beside nodes indicate bootstrap support values>70%. Individuals are identified by locality and the haplotype name is added if there more than one haplotype in the same locality. Notes: Haplotype names a1-a10 correpond to COIa1-COIa10 and vernalis 1–5 to COIv1-COIv5 from Table 1 and Figure 9; a map showing the geographical position of sampled areas and the number of localities in each area is shown in the top left part of the figure.
Figure 4 in Molecular-genetic-based contribution to the taxonomy of the Acanthocyclops robustus group
Figure 4. Acanthocyclops americanus (Marsh) female neotype from the terra typica, Madison, Wisconsin, USA. (A) Antennule; (B) antenna; (C) mandible; (D) maxillule; (E) maxilla; (F) maxilliped. Note: Scale bar = 50 µm.
Figure 5 in Molecular-genetic-based contribution to the taxonomy of the Acanthocyclops robustus group
Figure 5. Acanthocyclops americanus (Marsh) female neotype from the terra typica, Madison, Wisconsin, USA. (A–D) Swimming legs 1–4, in order. Note: Scale bar = 50 µm.
Figure 3 in Molecular-genetic-based contribution to the taxonomy of the Acanthocyclops robustus group
Figure 3. Acanthocyclops americanus (Marsh) from the terra typica, Madison, Wisconsin, USA. (A–B) Female neotype; (C) male allotype. Notes: Scale bar = 200 µm; neotype and allotype are from same samples used for molecular genetics, registered in Table 1, as are those in Figures 4–6).
Figure 2 in Molecular-genetic-based contribution to the taxonomy of the Acanthocyclops robustus group
Figure 2. Acanthocyclops robustus (Sars) female (A–F) and male (G–H) from the type locality, Lake Maridalsvann Oslo, Norway. (A) Leg 5 and genital segment in ventral view; (B) furca; (C) antennal basipod frontal side (D) antennal basipod caudal side; (E) Leg 4; (G) Leg4 distal segment of endopod; (H) Leg 4 endopod and exopod. Notes: All from the same samples used for molecular genetics, registered in Table 1.
Figure 3 in Feeding behaviour of Acanthocyclops americanus (Marsh) (Copepoda: Cyclopoida)
Figure 3. Feeding preference of A. americanus offered four prey types at three concentrations of the algae S. acutus. Shown are mean ± SE based on four replicate observations.
Figure 1 in Molecular-genetic-based contribution to the taxonomy of the Acanthocyclops robustus group
Figure 1. Acanthocyclops vernalis (Fisher) female (A–D) and male (E) from the type locality, Peterhof, St Petersburg, Russia. (A) Abdomen ventral view; (B) antennal basipod frontal side; (C) antennal basipod caudal side; (D) Leg 4 with coxa and intercoxal sclerite; (E) furca, and Legs 5 and 6. Notes: D and E are from the same samples used for molecular genetics, registered in Table 1.
Figure 2 in Feeding behaviour of Acanthocyclops americanus (Marsh) (Copepoda: Cyclopoida)
Figure 2. Functional response of A. americanus offered conspecific nauplii, cladocerans (M. micrura) and rotifers (B. havanaensis). Shown are the mean ± SE of the actual prey consumed based on four replicate observations and the transformation of the curve using the Michaelis–Menten equation.
Figure 1 in Feeding behaviour of Acanthocyclops americanus (Marsh) (Copepoda: Cyclopoida)
Figure 1. Clearance rates of A. americanus adult females, A. americanus nauplii, M. micrura and B. havanaensis at different concentrations of the chlorophyte Scenedesmus acutus. Shown are the mean ± SE based on four replicate observations.
Figure 9 in Molecular-genetic-based contribution to the taxonomy of the Acanthocyclops robustus group
Figure 9. Phylogenetic relationships based on maximum-likelihood analysis of mitochondrial 12S rRNA sequences. Numbers beside nodes indicate bootstrap support values>70%. Individuals for which nucleotide sequences are determined in this work are shown in bold; they are identified by locality and the corresponding COI haplotype name registered in Table 1 and shown abbreviated in Figure 7. The set of added existing 12S sequences for comparative purposes are identified by country, locality (when coincident with our sequences), GenBank accession number and assigned taxonomcal nomenclature; they are all taken from Bláha et al. (2010).
Figure 4 in A new Acanthocyclops Kiefer, 1927 (Cyclopoida: Cyclopinae) from an ecological reserve in Mexico City
Figure 4. Acanthocyclops eduardoi sp. nov. from Mexico, allotype adult male. (A) Habitus, dorsal view; (B) urosome, dorsal view; (C) antennule; (D) antennule, segments 14 and 15; (E) antenna, caudal; (F) antenna basipodite, frontal; (G) maxilliped. Scale bars: A, B, 100 µm; C–G, 50 µm.
Figure 3 in A new Acanthocyclops Kiefer, 1927 (Cyclopoida: Cyclopinae) from an ecological reserve in Mexico City
Figure 3. Acanthocyclops eduardoi sp. nov. from Mexico, holotype adult female. (A) First leg; (B) second leg; (C) third leg; (D) fourth leg; (E) fifth leg. Scale bars: A–D, 100 µm; E, 50 µm.
Figure 2 in A new Acanthocyclops Kiefer, 1927 (Cyclopoida: Cyclopinae) from an ecological reserve in Mexico City
Figure 2. Acanthocyclops eduardoi sp. nov. from Mexico, holotype adult female. (A) Habitus, dorsal view; (B) caudal ramus, dorsal view; (C) urosome with fifth pedigerous and genital somites, ventral view; (D) antennule; (E) antenna basipodite, frontal; (F) antenna, caudal; (G) labrum; (H) maxillule; (I) maxillule palp; (J) maxilla; (K) maxilliped. Scale bars: A–C, 100 µm; D–K, 50 µm.
Figure 5 in A new Acanthocyclops Kiefer, 1927 (Cyclopoida: Cyclopinae) from an ecological reserve in Mexico City
Figure 5. Acanthocyclops eduardoi sp. nov. from Mexico, allotype adult male. (A) First leg; (B) second leg; (C) third leg; (D) fourth leg; (E) coxal plate of fourth leg. Scale bars: A–D, 100 µm; E, 50 µm.
Figure 1 in A new Acanthocyclops Kiefer, 1927 (Cyclopoida: Cyclopinae) from an ecological reserve in Mexico City
Figure 1. Map of Mexico; the sampled sites where Acanthocyclops eduardoi sp. nov. were collected.
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