On the ecology of Cletocamptus gomezi Suárez-Morales, Barrera-Moreno &amp; Ciros-Pérez 2013 (Crustacea, Copepoda, Harpacticoida) micro-endemic to Lake Alchichica, Central Mexico

Alcocer, Javier; Hernández, María del Carmen; Oseguera, Luis A.; Escobar, Elva

doi:10.4081/jlimnol.2014.1070

Cited by 5 publications

(2 citation statements)

References 36 publications

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“…Alchichica is a warm monomictic lake that mixes from late December or early January to late March or early April during the cold-dry season and remains stratified the rest of the year during the warm-rainy season (Adame et al, 2008). For a more detailed description of the general characteristics of Lake Alchichica, see Alcocer et al (2015).…”

Section: Study Sitementioning

confidence: 99%

Estimation of the eddy diffusivity coefficient in a warm monomictic tropical Lake

et al. 2016

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We used a two-year dataset (1998-1999) of monthly temperature profiles from Lake Alchichica, Mexico to estimate values of the vertical coefficient of eddy diffusivity. This lake is located in a tropical region at high altitude and shows considerable seasonal variations (i.e., rainy and dry seasons). It has an area of 2.3 km2 and a mean depth of 40.9 m. Alchichica is a warm monomictic lake, which annually becomes isothermal near the end of December or early January at the onset of the dry season and remains stratified for the rest of the year (from late March or early April to early December) during the warm-rainy season. Mathematical models of the spatial and temporal variation of passive substances in lakes and oceans require a quantitative formulation of the vertical transport. Vertical mixing is generally a function of the density profile, which, in lakes, can be directly related to the temperature profile. A widely used method to estimate the vertical diffusion coefficients in lakes from temperature data is the flux-gradient method. In the present study, we applied a simple approach to calculate the eddy diffusivity coefficient (Kz) based on the solution of the vertical component of the modeled temperature equation. We characterized the eddy diffusivity coefficient (Kz) in Lake Alchichica as a dynamic coefficient that changes during the year, between years, and with depth, ranging from 10-10 to 10-6 m2 s-1, whereas typical values of Kz in thermally stratified lakes range from 10-9 to 10-2 m2 s-1. As expected, we found the lowest values in the deeper regions of the lake, and that the temporal variation of temperature with depth showed a quasi-bimodal shape from one year to the next. We also found a structure of alternating peaks and troughs in the vertical Kz, which indicates a response to oscillating vertical mixing. We concluded that the solution of the vertical component of the temperature equation could be a useful tool to estimate the eddy diffusivity in lakes. The major advantage of this method is its simplicity. We also conclude that the differences observed in the estimations of eddy diffusivity coefficients in other lakes are attributable to the differences in local characteristics of the thermal conditions in each lake.

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Section: Study Sitementioning

confidence: 99%

Estimation of the eddy diffusivity coefficient in a warm monomictic tropical Lake

et al. 2016

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“…There is some evidence that several Mexican species exhibit different distributional patterns, i.e., Cletocamptus sinaloensis have been recorded in lagoons and estuarine systems of Sinaloa State [216], whereas C. gomezi is endemic to a high -altitude lake [219].…”

Section: Copepodsmentioning

confidence: 99%

Freshwater Diversity of Zooplankton from Mexico: Historical Review of Some of the Main Groups

Cervantes-Martínez

Ramírez

Elías‐Gutiérrez

et al. 2023

Water

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In this review, we include rotifers, copepods, and cladocerans, including other groups not usually deemed as zooplankters: i.e., protists, acari, and large branchiopods. The objectives of this study were to integrate the dispersed literature on the taxonomy and diversity of these freshwater zooplankton groups and to explain (1) how these contributions can be arranged in distinct historical periods and (2) how this knowledge has allowed the detection of exotic and threatened species. We divided the freshwater zooplankton studies in Mexico into three historical periods: the first one comprised the 1840s to the 1940s when foreign researchers carried out most studies during several expeditions. Spanish researchers promoted surveys on different zooplankton taxa at the end of this first period. The second period, from the early 1950s to the end of the 1990s of the XX century, showed a remarkably increased research activity in its last ten years only (that is, during the 1990s to 2000), represented by contributions of a new generation of Mexican zooplanktologists. This period yielded more complete zooplankton listings and detailed morphological descriptions of rotifers, cladocerans, copepods, and large branchiopods. The third period started from the year 2000 to date. During this time, listings and online faunistic baselines based on integrative taxonomy have been the primary trend. An account of exotic zooplankters and conservation issues of several native species are discussed. The results of this review show that the knowledge of the freshwater zooplankton of this country has increased significantly over the last 40 years, with at least 408 first records of species for Mexico. Currently, the knowledge of Mexican freshwater zooplankton is among the most complete in the world. However, it is estimated that only a small fraction of the true diversity has been documented.

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The Littoral Community

Alcocer

Escobar

Oseguera

et al. 2022

Lake Alchichica Limnology

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On the ecology of Cletocamptus gomezi Suárez-Morales, Barrera-Moreno & Ciros-Pérez 2013 (Crustacea, Copepoda, Harpacticoida) micro-endemic to Lake Alchichica, Central Mexico

Abstract: Cletocamptus gomezi Suárez-Morales, Barrera-Moreno & Ciros-Pérez (2013

Cited by 5 publications

References 36 publications

Estimation of the eddy diffusivity coefficient in a warm monomictic tropical Lake

Estimation of the eddy diffusivity coefficient in a warm monomictic tropical Lake

Freshwater Diversity of Zooplankton from Mexico: Historical Review of Some of the Main Groups

The Littoral Community

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