meridian

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meridian

One of the imaginary lines running north and south and used by surveyors for reference in locating and describing land. Each area has a principal meridian as the reference for all other lines.Because of the curvature of the earth,though,meridian lines cannot remain an equal distance apart, because they converge as they approach the North Pole.As a result,correcting lines, called guide lines,are run at 24-mile intervals.The correcting lines break and then re-form at each base line.See also public land survey system.

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meridianus with altitude is a compensatory adaptation.

Keywords: Midday gerbil, Meriones meridianus, auditory bulla, altitude, environmental factors.

Effects of Change in Altitude on the Auditory Bulla of Midday Gerbil,Meriones meridianus n l g

was found in low abundance whereas Mesocyclops meridianus (Kiefer 1926) was frequent.

meridianus (Copepoda) was frequent in the floating macrophytes area.

Zoo-heleoplankton structure in three artificial ponds of North-eastern Argentina

meridianus (Steel, 1961), Jaera italica and J nordmanni (Veuille, 1980).

Protogynous sex change in the intertidal isopod Gnorimosphaeroma oregonense (Crustacea: Isopoda)

Taxon C0 C1 C2 C3 COPEPODA Cyclopidae Eucyclops elegans (Herrick, 1884) X Mesocyclops meridianus (Kiefer, 1926) X X X X Metacyclops mendocinus (Wierzejski, 1892) X X X X Paracyclops chiltoni (Thomson, 1883) X Thermocyclops decipiens (Kiefer, 1929) X X X X Thermocyclops inversus (Kiefer, 1936) X X Tropocyclops prasinus (Fischer, 1860) X X Diaptomidade Notodiaptomus cearensis (Wright, 1936) X X X X Harpacticoida Potamocaris sp.

Cyanobacteria bloom: selective filter for zooplankton?/Floracao de cianobacteria: filtro seletivo para zooplancton?

CALANOIDA Argyrodiaptomus furcatus (Sars, 1901) Notodiaptomus conifer (Sars, 1901) Notodiaptomus iheringi Wright, 1935 CYCLOPOIDA Eucyclops serrulatus (Fischer, 1851) Mesocyclops longisetus (Thiebaud, 1914) Mesocyclops meridianus Kiefer, 1926 Mesocyclops kieferi van de Velde, 1984 Paracyclops fimbriatus (Fischer, 1853) Thermocyclops decipiens (Kiefer, 1929) Thermocyclops minutus (Lowndes, 1934) POECILOSTOMATOIDA Ergasilus sp.

Zooplankton fluctuations in Jurumirim Reservoir (Sao Paulo, Brazil): a three-year study/Flutuacoes do zooplancton na represa de Jurumirim (Sao Paulo, Brasil): um estudo de tres anos

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