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22 results for “Mesocyclops”
Figure 9 in The neotropical species of Mesocyclops (Copepoda, Cyclopoida): an upgraded identification key and comments on selected taxa
Figure 9. (A) Mesocyclops meridionalis, female (MNHN Cp 718), antennular segments; (B) fifth pediger, genital somite, ventral; (C) M. brasilianus, female (MNHN Cp 821) antennular segments; (D) M. evadomingoi, female (ECOCH-Z-01157), maxillulae; (E) M. meridianus, female (ECOCH-Z-01205), maxillulae; (F) M. pseudomeridianus, female (MNHN Cp 708), caudal rami, ventral; (G) M. meridianus, female (ECOCH-Z-01204).
Figure 4 in The neotropical species of Mesocyclops (Copepoda, Cyclopoida): an upgraded identification key and comments on selected taxa
Figure 4. (A) Mesocyclops thermocyclopoides, male (ECOCH-Z-01215), first leg, caudal, exopod omitted; (B) M. brasilianus, female (MNHN Cp 821), first leg, frontal, exopod omitted; (C) M. pescei, female (ECOCH-Z-01246), fifth pediger, genital somite upper portion, ventral; (D) M. pescei, male (ECOCH-Z-01244), fourth leg, intercoxal sclerite; (E) M. thermocyclopoides, female (ECOCH-Z-01214), fifth pediger, genital somite upper portion, ventral; (F) M. aspericornis, female (ECOCH-Z-01234); (G) M. pehpehiensis, female (ECOCH-Z-01667), fifth pediger, genital somite upper portion, ventral; (H) M. pehpehiensis, female fourth leg, intercoxal sclerite.
Figure 6 in The neotropical species of Mesocyclops (Copepoda, Cyclopoida): an upgraded identification key and comments on selected taxa
Figure 6. (A) Mesocyclops reidae, male (ECOCH-Z-01255), antennal basis, frontal; (B) M. longisetus s.str. female (ECOCH-Z-01236), antennal basis, frontal; (C) M. edax, female, abdomen (modified from Dahms and Fernando 1995, copyright waiver); (D) M. reidae, male (ECOCH-Z-01255), abdomen, ventral; (E) M. reidae, female, fifth pediger and genital somite (modified from Reid 1993, copyright waiver); (F) M. chaci, female, fifth pediger and genital somite (modified from Fiers et al. 1996, copyright waiver); (G) M. chaci, female, fifth leg (modified from Fiers et al. 1996, copyright waiver); (H) M. yutsil, female, fifth leg (modified from Fiers et al. 1996, copyright waiver).
Figure 2 in The neotropical species of Mesocyclops (Copepoda, Cyclopoida): an upgraded identification key and comments on selected taxa
Figure 2. (A) Abdomen ventral (female from Taxisco, Guatemala, MNHN Cp 697, labelled as Mesocyclops varius); (B) Mesocyclops brasilianus, female from Itacoatiara, Brazil (INPA-1396), abdomen, ventral; (C) abdomen, ventral (female from Mare à Camaguan and Caracas, Venezuela, MNHN-Cp1882, labelled as Mesocyclops venezolanus); (D) caudal rami, ventral (MNHN Cp 697); (E) M. brasilianus (INPA-1396), anal somite, and caudal rami, ventral; (F) anal somite and caudal rami, view (MNHN-Cp1880).
Figure 1 in The neotropical species of Mesocyclops (Copepoda, Cyclopoida): an upgraded identification key and comments on selected taxa
Figure 1. (A) First leg, coxa, basis, and first endopodal segment, frontal (female from Taxisco, Guatemala, MNHN Cp 697, labelled as Mesocyclops varius); (B) Mesocyclops brasilianus, female from Itacoatiara, Brazil (INPA- 1396), first leg, coxa, basis, and first endopodal segment, caudal; (C) first leg, coxa, basis, and first endopodal segment, caudal (female from Mare à Camaguan and Caracas, Venezuela, MNHN-Cp1882, labelled as Mesocyclops venezolanus); (D) fourth leg, coxa, and basis, frontal (MNHN Cp 697); (E) M. brasilianus (INPA- 1396), fourth leg, coxa, and basis, caudal; (F) fourth leg, coxa, and basis, caudal (MNHN-Cp1882); (G) fifth pediger and genital somite, ventral (MNHN Cp 697); (H) M. brasilianus (INPA-1396), fifth pediger and genital somite, ventral; (I) fifth pediger and genital somite, ventral (MNHN-Cp1882).
Figure 3 in The neotropical species of Mesocyclops (Copepoda, Cyclopoida): an upgraded identification key and comments on selected taxa
Figure 3. Frequencies of the length ratio of dorsal/lateral caudal setae in the populations of Mesocyclops brasilianus populations examined. Lines refer to the ratio range of each population.
Figure 5 in The neotropical species of Mesocyclops (Copepoda, Cyclopoida): an upgraded identification key and comments on selected taxa
Figure 5. (A) Mesocyclops ogunnus, female, maxillular palp (from van de Velde 1984); (B) M. thermocyclopoides, female (ECOCH-Z-01214), maxillular palp; (C) caudal rami, ventral; (D) antennal basis, caudal; (E) M. thermocyclopoides, male (ECOCH-Z-01215), antennal basis, caudal; (F) M. aspericornis, female (ECOCH-Z- 01234), caudal rami, ventral; (G) antennal basis, caudal; (H) M. reidae, male (ECOCH-Z-01255), fourth leg, intercoxal sclerite, coxa, and basis, caudal; (I) M. brasilianus, female (ECOCH-Z-01195), fourth leg, intercoxal sclerite, coxa, and basis, caudal.
Figure 8 in The neotropical species of Mesocyclops (Copepoda, Cyclopoida): an upgraded identification key and comments on selected taxa
Figure 8. (A) Mesocyclops ellipticus, female (ECOCH-Z-01252), fifth pediger, genital somite, ventral; (B) anal somite, dorsal; (C) M. intermedius, female (ZMA Co 102-731), fifth pediger, genital somite, ventral; (D) anal somite, dorsal; (E) anal somite, caudal rami, ventral; (F) M. paranaensis, female (MNHN Cp 1883), anal somite, caudal rami, ventral; (G) M. brasilianus, female (ECOCH-Z-01196), fifth pediger, genital somite, ventral; (H) M. meridianus, female (ECOCH-Z-01202).
Figure 7 in The neotropical species of Mesocyclops (Copepoda, Cyclopoida): an upgraded identification key and comments on selected taxa
Figure 7. (A) Mesocyclops annulatus, female (MNHN Cp 864), fourth leg, intercoxal sclerite; (B) M. ellipticus, male (ECOCH-Z-01250); (C) M. annulatus, female (MNHN Cp 864), fifth pediger, genital somite, ventral; (D) M. longisetus s.str., female (ECOCH-Z-01236), fifth pediger, genital somite, ventral; (E) 16th antennular segment, inner; (F) M. longisetus curvatus, female (ECOCH-Z-01240), fifth pediger, genital somite, ventral; (G) M. longisetus curvatus, male, 16th antennular segment, inner (from Suárez-Morales et al. 1996, copyright waiver); (H) M. longisetus curvatus, female, fourth leg, third endopodal segment (modified from Reid and Reed 1994, copyright waiver); (I) M. longisetus curvatus, female (ECOCH-Z-01240), caudal rami, ventral; (J) M. longisetus araucanus, female, fourth leg, third endopodal segment (from Löffler 1961); (K) M. longisetus araucanus, female, caudal ramii, ventral (from Löffler 1961).
FIG. 3 in The Asian Mesocyclops pehpeiensis Hu, 1943 (Crustacea, Copepoda, Cyclopidae) in Southeast Mexico with comments on the distribution of the species
FIG. 3. — Mesocyclops pehpeiensis Hu, 1943, adult female from Chiapas, Mexico; A, coxa, coxal plate, and basipodite of first swimming leg showing ornamentation; B, third segment of endopodite of fourth swimming legs; C, coxa, coxal plate, and basipodite of fourth swimming leg; D, basipodite of antennae showing ornamentation, caudal view. Scale bars: 50 μm.
FIG. 5 in The Asian Mesocyclops pehpeiensis Hu, 1943 (Crustacea, Copepoda, Cyclopidae) in Southeast Mexico with comments on the distribution of the species
FIG. 5. — World distribution of Mesocyclops pehpeiensis Hu, 1943. Numbers represent records by different sources/authorities; 1, Hu (1943) in Beipei, China, the type locality; 2, Guo (2000) from Nanjing and Lake Caohai, China, both sites near the type locality; 3, Tai & Chen (1979) from different areas of China and from Inner Mongolia; 4, Mirabdullayev (1996) from Uzbekistan; 5, Ishida (1999) from Hokkaido, northern Japan; 6, Ueda et al. (1997) from Kyushu, Japan; 7, Ueda & Ishida (1997) from Okinawa, Japan; 8, Dussart & Fernando (1985b) from Sri Lanka; 9, Kawabata & Defaye (1994) from Lake Kahoku, western coast of Japan; 10, Reid (1993) from Louisiana and Mississippi, United States; 11, Reid (1996) from the District of Columbia, United States; 12, Hołyńska et al. (2003) from different areas including India; 13, Dussart & Fernando (1985a) from Malaysia; 14, present record in Chiapas, Mexico.
FIG. 2 in The Asian Mesocyclops pehpeiensis Hu, 1943 (Crustacea, Copepoda, Cyclopidae) in Southeast Mexico with comments on the distribution of the species
FIG. 2. — Mesocyclops pehpeiensis Hu, 1943, adult female from Chiapas, Mexico; A, habitus, dorsal view; B, antennule; C, fifth pedigerous and genital somite showing genital field, ventral view; D, terminal segments of antennule showing serrate lamella; E, right caudal ramus, ventral view. Scale bars: A, 250 μm; B, C, E, 100 μm; D, 50 μm.
FIG. 4 in The Asian Mesocyclops pehpeiensis Hu, 1943 (Crustacea, Copepoda, Cyclopidae) in Southeast Mexico with comments on the distribution of the species
FIG. 4. — Mesocyclops pehpeiensis Hu, 1943; A, B, adult female from Chiapas, Mexico; A, fifth leg; B, sixth leg showing adjacent cuticular pores; C-E, adult male from same locality; C, habitus, dorsal view; D, segments 1-15 of geniculate antennule showing complete armament; E, segments 16-17 of geniculate antennule. Scale bars: A, 50 μm; B, D, E, 25 μm; C, 250 μm.
FIG. 1 in The Asian Mesocyclops pehpeiensis Hu, 1943 (Crustacea, Copepoda, Cyclopidae) in Southeast Mexico with comments on the distribution of the species
FIG. 1. — Map of area surveyed in the southern part of the state of Chiapas, Mexico, showing localities positive for Mesocyclops pehpeiensis Hu, 1943 (■).
FIGURES 1–2 in Occurrence of Epistylis anastatica (Linnaeus, 1767) (Ciliophora: Peritrichia) on Mesocyclops isabellae Dussart & Fernando (Crustacea: Copepoda: Cyclopoida) in India, with an annotated checklist of species of Epistylis reported as Epibionts of Cyclopoid Copepods and resources for their identification
FIGURES 1–2. Colonies of Epistylis anastatica attached to the metasome and urosome of Mesocyclops isabellae. Scale bar = 250 µm in 1 and 50 µm in 2.
FIGURE 10 in Occurrence of Epistylis anastatica (Linnaeus, 1767) (Ciliophora: Peritrichia) on Mesocyclops isabellae Dussart & Fernando (Crustacea: Copepoda: Cyclopoida) in India, with an annotated checklist of species of Epistylis reported as Epibionts of Cyclopoid Copepods and resources for their identification
FIGURE 10. Diagrams that illustrate the possible forms and branching patterns of colonies of Epistylis spp. given in Table 2. Colony forms: a, simple cluster; b–c, e–h, arborescent; d, cuneate (wedge-shaped, with all stalks terminating at the same level); branching patterns: a, irregular (no discernible pattern); b–d, symmetrically dichotomous; c, asymmetrically dichotomous; e symmetrically alternating; f, asymmetrically alternating; g, pinnate; h, umbellate. Notes: colonies such as 'b' and 'c' are sometimes described as fan-shaped (flabellate); cuneate colonies (d) are sometimes incorrectly described as umbellate, a term that can be used properly only to describe a pattern in which all of the 2o branches radiate in different planes from a single point (compare 'd' and 'h' to see the difference); pinnate colonies like those illustrated in 'g' are an extreme variant of the alternating pattern in which pairs of 2o branches arise from points so close together that they seem to be opposite one another.
FIGURES 3–9 in Occurrence of Epistylis anastatica (Linnaeus, 1767) (Ciliophora: Peritrichia) on Mesocyclops isabellae Dussart & Fernando (Crustacea: Copepoda: Cyclopoida) in India, with an annotated checklist of species of Epistylis reported as Epibionts of Cyclopoid Copepods and resources for their identification
FIGURES 3–9. Epistylis anastatica attached to the exoskeleton of Mesocyclops isabellae. 3–5: views of the stalk, showing the dichotomous branching pattern and long primary stalk; arrowheads in fig. 3 indicate the branching points in an asymmetrically dichotomous colony and to its right are the abandoned stalks of a symmetrically dichotomous colony (region encircled); 4, immature colony; note the elongate primary stalk; 5, stalks of two symmetrically dichotomous colonies (one is lying over the other, which is slightly out of focus). 6–9: characteristics of zooids; 6, the upper arrowhead indicates the edge of the peristomial lip, and the lower arrowhead indicates the scopula (circular, aboral region that secretes the stalk and attaches the zooid to it); 7, arrow indicates the projecting tube formed by constriction of the peristomial lip when cell contracts ("schnauzenformigen"); MaN, longitudinally oriented macronucleus; 8–9, zooids that remained expanded when fixed; arrow indicates the peristomial lip in both figures. Scale bar = 100 µm in 3–4 and 25 µm in 5–9.
Figure 2 in Functional responses and feeding rates of Mesocyclops pehpeiensis Hu (Copepoda) fed different diets (rotifers, cladocerans, alga and cyanobacteria)
Figure 2. Functional response curves of Mesocyclops pehpeiensis fed Brachionus rubens with (closed circles) and without (open circles) algae at different densities and under different temperature regimes. Replicate data are plotted for each prey concentration. Transformations are based on the Michaelis–Menten equation shown in Material and Methods.
Figure 3 in Functional responses and feeding rates of Mesocyclops pehpeiensis Hu (Copepoda) fed different diets (rotifers, cladocerans, alga and cyanobacteria)
Figure 3. Phytoplankton (Chlorella vulgaris and Anabaena sp.) consumption by adult female Mesocyclops pehpeiensis. Values represent mean ± SE based on four replicates. For each phytoplankton species, data indicated by dissimilar letters are statistically significant (p <0.05, Tukey test).
Figure 1 in Functional responses and feeding rates of Mesocyclops pehpeiensis Hu (Copepoda) fed different diets (rotifers, cladocerans, alga and cyanobacteria)
Figure 1. Prey selectivity index (Manly's α) by the copepod Mesocyclops pehpeiensis offered different prey species at low (0.5 ind. ml−1) and high (2.0 ind. ml−1) densities. Data bars above the horizontal line represent active prey selection.
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