A redescription of Moina hutchinsoni, a rare cladoceran (Branchiopoda: Anomopoda) found in remnants of a mexican saline lake, with notes on its life history.

Martínez Jerónimo, Fernando autor/a 12583; Elías Gutiérrez, Manuel Doctor autor/a 2041; Suárez Morales, Eduardo Doctor autor/a 2036

A redescription of Moina hutchinsoni, a rare cladoceran (Branchiopoda: Anomopoda) found in remnants of a mexican saline lake, with notes on its life history.

Moina hutchinsoni Brehm, 1937, a nearctic anomopod cladoceran, was observed in shallow ephemeral ponds of the former Texcoco Lake, near Mexico City, Mexico. The type material, from Lake Winnemucca, Nevada, was considered lost; additional topotypic material could not be obtained from that locality because the site is completely dry. The species is redescribed herein based on specimens from Texcoco Lake and Border Lake, Nebraska. Specimens from these localities were compared to study the morphological variability of this species; differences were found in the cuticular hair patterns on head, body, antennules, and second antennae, in the number of feathered setae on the postabdomen, and in the structure of pectens in claws. The life cycle of this rare species was analyzed in the laboratory. In culture, diet consisted of the microalgae Ankistrodesmus falcatus (freshwater) and Chlorella sp. (marine); both algae were consumed by the cladoceran. Culture temperature ranged between 158 and 208C, and salinity range was 5-25 g L 1. Cultured specimens were significantly larger than those from field populations.

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Bibliographic Details
Main Authors:	Martínez Jerónimo, Fernando autor/a 12583, Elías Gutiérrez, Manuel Doctor autor/a 2041, Suárez Morales, Eduardo Doctor autor/a 2036
Format:	Texto biblioteca
Language:	eng
Subjects:	Moina hutchinsoni, Cladóceros, Variación morfológica, Ciclos vitales de los animales, Algas, Nutrición animal,
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id	KOHA-OAI-ECOSUR:46049
record_format	koha
institution	ECOSUR
collection	Koha
country	México
countrycode	MX
component	Bibliográfico
access	En linea
databasecode	cat-ecosur
tag	biblioteca
region	America del Norte
libraryname	Sistema de Información Bibliotecario de ECOSUR (SIBE)
language	eng
topic	Moina hutchinsoni Cladóceros Variación morfológica Ciclos vitales de los animales Algas Nutrición animal Moina hutchinsoni Cladóceros Variación morfológica Ciclos vitales de los animales Algas Nutrición animal
spellingShingle	Moina hutchinsoni Cladóceros Variación morfológica Ciclos vitales de los animales Algas Nutrición animal Moina hutchinsoni Cladóceros Variación morfológica Ciclos vitales de los animales Algas Nutrición animal Martínez Jerónimo, Fernando autor/a 12583 Elías Gutiérrez, Manuel Doctor autor/a 2041 Suárez Morales, Eduardo Doctor autor/a 2036 A redescription of Moina hutchinsoni, a rare cladoceran (Branchiopoda: Anomopoda) found in remnants of a mexican saline lake, with notes on its life history.
description	Moina hutchinsoni Brehm, 1937, a nearctic anomopod cladoceran, was observed in shallow ephemeral ponds of the former Texcoco Lake, near Mexico City, Mexico. The type material, from Lake Winnemucca, Nevada, was considered lost; additional topotypic material could not be obtained from that locality because the site is completely dry. The species is redescribed herein based on specimens from Texcoco Lake and Border Lake, Nebraska. Specimens from these localities were compared to study the morphological variability of this species; differences were found in the cuticular hair patterns on head, body, antennules, and second antennae, in the number of feathered setae on the postabdomen, and in the structure of pectens in claws. The life cycle of this rare species was analyzed in the laboratory. In culture, diet consisted of the microalgae Ankistrodesmus falcatus (freshwater) and Chlorella sp. (marine); both algae were consumed by the cladoceran. Culture temperature ranged between 158 and 208C, and salinity range was 5-25 g L 1. Cultured specimens were significantly larger than those from field populations.
format	Texto
topic_facet	Moina hutchinsoni Cladóceros Variación morfológica Ciclos vitales de los animales Algas Nutrición animal
author	Martínez Jerónimo, Fernando autor/a 12583 Elías Gutiérrez, Manuel Doctor autor/a 2041 Suárez Morales, Eduardo Doctor autor/a 2036
author_facet	Martínez Jerónimo, Fernando autor/a 12583 Elías Gutiérrez, Manuel Doctor autor/a 2041 Suárez Morales, Eduardo Doctor autor/a 2036
author_sort	Martínez Jerónimo, Fernando autor/a 12583
title	A redescription of Moina hutchinsoni, a rare cladoceran (Branchiopoda: Anomopoda) found in remnants of a mexican saline lake, with notes on its life history.
title_short	A redescription of Moina hutchinsoni, a rare cladoceran (Branchiopoda: Anomopoda) found in remnants of a mexican saline lake, with notes on its life history.
title_full	A redescription of Moina hutchinsoni, a rare cladoceran (Branchiopoda: Anomopoda) found in remnants of a mexican saline lake, with notes on its life history.
title_fullStr	A redescription of Moina hutchinsoni, a rare cladoceran (Branchiopoda: Anomopoda) found in remnants of a mexican saline lake, with notes on its life history.
title_full_unstemmed	A redescription of Moina hutchinsoni, a rare cladoceran (Branchiopoda: Anomopoda) found in remnants of a mexican saline lake, with notes on its life history.
title_sort	redescription of moina hutchinsoni, a rare cladoceran (branchiopoda: anomopoda) found in remnants of a mexican saline lake, with notes on its life history.
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spelling	KOHA-OAI-ECOSUR:460492024-07-15T17:55:15ZA redescription of Moina hutchinsoni, a rare cladoceran (Branchiopoda: Anomopoda) found in remnants of a mexican saline lake, with notes on its life history. Martínez Jerónimo, Fernando autor/a 12583 Elías Gutiérrez, Manuel Doctor autor/a 2041 Suárez Morales, Eduardo Doctor autor/a 2036 textengMoina hutchinsoni Brehm, 1937, a nearctic anomopod cladoceran, was observed in shallow ephemeral ponds of the former Texcoco Lake, near Mexico City, Mexico. The type material, from Lake Winnemucca, Nevada, was considered lost; additional topotypic material could not be obtained from that locality because the site is completely dry. The species is redescribed herein based on specimens from Texcoco Lake and Border Lake, Nebraska. Specimens from these localities were compared to study the morphological variability of this species; differences were found in the cuticular hair patterns on head, body, antennules, and second antennae, in the number of feathered setae on the postabdomen, and in the structure of pectens in claws. The life cycle of this rare species was analyzed in the laboratory. In culture, diet consisted of the microalgae Ankistrodesmus falcatus (freshwater) and Chlorella sp. (marine); both algae were consumed by the cladoceran. Culture temperature ranged between 158 and 208C, and salinity range was 5-25 g L 1. Cultured specimens were significantly larger than those from field populations.Lower temperatures correlated with a delayed first reproduction and with a longer inactive time between succeeding clutches. The wide thermal and salinity ranges tested during culturing, plus the ability of these animals to consume algae not normally found in its natural environment, suggest a euryecious character of this species in laboratory conditions that contrasts with the affinity of natural populations for high-salinity habitats. The lifespan of this species is longer than that of other moinids; it may be the longest-lived species within the Moinidae. The average clutch size ranged from 12 to 24.8 neonates; optimal environmental conditions differed for number of neonates and maximum clutch size. Loss of the natural environments (saline lakes) where this rare species has been recorded, both in Mexico and U.S.A., suggests an endangered status of this cladoceran.Moina hutchinsoni Brehm, 1937, a nearctic anomopod cladoceran, was observed in shallow ephemeral ponds of the former Texcoco Lake, near Mexico City, Mexico. The type material, from Lake Winnemucca, Nevada, was considered lost; additional topotypic material could not be obtained from that locality because the site is completely dry. The species is redescribed herein based on specimens from Texcoco Lake and Border Lake, Nebraska. Specimens from these localities were compared to study the morphological variability of this species; differences were found in the cuticular hair patterns on head, body, antennules, and second antennae, in the number of feathered setae on the postabdomen, and in the structure of pectens in claws. The life cycle of this rare species was analyzed in the laboratory. In culture, diet consisted of the microalgae Ankistrodesmus falcatus (freshwater) and Chlorella sp. (marine); both algae were consumed by the cladoceran. Culture temperature ranged between 158 and 208C, and salinity range was 5-25 g L 1. Cultured specimens were significantly larger than those from field populations.Lower temperatures correlated with a delayed first reproduction and with a longer inactive time between succeeding clutches. The wide thermal and salinity ranges tested during culturing, plus the ability of these animals to consume algae not normally found in its natural environment, suggest a euryecious character of this species in laboratory conditions that contrasts with the affinity of natural populations for high-salinity habitats. The lifespan of this species is longer than that of other moinids; it may be the longest-lived species within the Moinidae. The average clutch size ranged from 12 to 24.8 neonates; optimal environmental conditions differed for number of neonates and maximum clutch size. Loss of the natural environments (saline lakes) where this rare species has been recorded, both in Mexico and U.S.A., suggests an endangered status of this cladoceran.Adobe Acrobat profesional 6.0 o superior e InternetMoina hutchinsoniCladócerosVariación morfológicaCiclos vitales de los animalesAlgasNutrición animalDisponible en líneaJournal of Crustacean BiologyDisponible para usuarios de ECOSUR con su clave de acceso

A redescription of Moina hutchinsoni, a rare cladoceran (Branchiopoda: Anomopoda) found in remnants of a mexican saline lake, with notes on its life history.

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