Redescription of a Philippine endemic freshwater calanoid copepod, Pseudodiaptomus brehmi Kiefer, 1938 (Copepoda, Calanoida, Pseudodiaptomidae)
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Research Center for Natural and Applied Sciences, College of Science, University of Santo Tomas, España Boulevard, Manila 1015, Philippines
Department of Biological Sciences, College of Science, University of Santo Tomas, España Boulevard, Manila 1015, Philippines
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Abstract
The genus Pseudodiaptomus is represented by 19 species in Philippine coastal waters. Of all these species found in the Philippines, P. brehmi Kiefer, 1938 is the only known truly freshwater pseudodiaptomid endemic to this country, which was originally described from Lake Naujan, Mindoro Island. After numerous attempts to find it in its type locality, we concluded that the former is no longer extant in this lake and has now been displaced by the invasive Neotropical calanoid Arctodiaptomus dorsalis (Marsh, 1907). Sampling in Lake Taal, on the nearby island of Luzon, resulted in the surprise discovery of P. brehmi populations coexisting with A. dorsalis. This rediscovery of P. brehmi in Lake Taal and its absence from its type locality, necessitate this report as well as the species’ morphological redescription.
Résumé
Le genre Pseudodiaptomus est représenté par 19 espèces dans les eaux côtières des Philippines. De toutes ces espèces trouvées aux Philippines, P. brehmi Kiefer, 1938 est la seule espèce véritablement connue de Pseudodiaptomidae d’eau douce endémique de ce pays, décrite à l’origine du lac Naujan, dans l’île de Mindoro. Après de nombreuses tentatives pour trouver cette espèce dans sa localité-type, nous en avons conclu qu’elle n’était plus présente dans ce lac et qu’elle avait été remplacée par le calanoïde néotropical invasif Arctodiaptomus dorsalis (Marsh, 1907). L’échantillonnage dans le lac Taal, sur l’île proche de Luzon, a conduit à la découverte surprise de populations de P. brehmi coexistant avec A. dorsalis. Cette redécouverte de P. brehmi dans le lac Taal et son absence de la localité-type nécessitaient d’être rapportées de même que la redescription morphologique de cette espèce.
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Papa, R. D. S., K. S. Legaspi, C. G. Blaza, F. S. Lirio, N. G. R. Bangalan & T. C. Walter, 2017. The abundance and morphometric characteristics of the endemic Pseudodiaptomus brehmi Kiefer, 1938 (Copepoda: Calanoida: Pseudodiaptomidae) in Lake Taal (Luzon Is., Philippines). Philippine Science Letters, 10: 1-7.
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Redescription of a Philippine endemic freshwater calanoid copepod, Pseudodiaptomus brehmi Kiefer, 1938 (Copepoda, Calanoida, Pseudodiaptomidae)
In: CrustaceanaSearch for other papers by S. K. P. Guinto in
Current site
Google Scholar
PubMed
Search for other papers by T. C. Walter in
Current site
Google Scholar
PubMed
Research Center for Natural and Applied Sciences, College of Science, University of Santo Tomas, España Boulevard, Manila 1015, Philippines
Department of Biological Sciences, College of Science, University of Santo Tomas, España Boulevard, Manila 1015, Philippines
Search for other papers by R. D. S. Papa in
Current site
Google Scholar
PubMed
Abstract
The genus Pseudodiaptomus is represented by 19 species in Philippine coastal waters. Of all these species found in the Philippines, P. brehmi Kiefer, 1938 is the only known truly freshwater pseudodiaptomid endemic to this country, which was originally described from Lake Naujan, Mindoro Island. After numerous attempts to find it in its type locality, we concluded that the former is no longer extant in this lake and has now been displaced by the invasive Neotropical calanoid Arctodiaptomus dorsalis (Marsh, 1907). Sampling in Lake Taal, on the nearby island of Luzon, resulted in the surprise discovery of P. brehmi populations coexisting with A. dorsalis. This rediscovery of P. brehmi in Lake Taal and its absence from its type locality, necessitate this report as well as the species’ morphological redescription.
| All Time | Past Year | Past 30 Days | |
|---|---|---|---|
| Abstract Views | 486 | 58 | 2 |
| Full Text Views | 189 | 0 | 0 |
| PDF Views & Downloads | 15 | 0 | 0 |