Results 21 to 30 of about 934 (164)

Life History Consequences of Food Quality in the Freshwater Copepod Boeckella triarticulata

open access: yesEcology, 1998
Food quality often has profound effects on life history traits and individual fitness, altering rates of growth and development, changing the timing of reproduction, and shifting the trade-off between egg size and egg number. Few data are available on the effects of food quality on copepod life history traits. We measured several life history traits on
Saran Twombly   +2 more
  +6 more sources

Seasonal abundance of small cladocerans in Lake Mangakaware, Waikato, New Zealand [PDF]

open access: yes, 1999
The seasonal changes in the dynamics and life histories of the Cladocera in Lake Mangakaware, North Island, New Zealand, were studied over 19 months by sampling at weekly or 2-weekly intervals.
Chapman M. A.   +19 more
core   +2 more sources

Experimental hybridization of alpine and lowland forms of Boeckella dilatata, a calanoid copepod [PDF]

open access: yesHeredity, 1993
The freshwater calanoid copepod Boeckella dilatata Sars inhabits lakes and ponds of glacial origin in central and southern South Island, New Zealand. In lowland lakes and ponds, this copepod is small and transparent while in alpine bodies of water, it is larger and bright red.
Andrea E Byrom   +2 more
openaire   +1 more source

Spatial and temporal dynamics of the mesozooplankton (Crustacea: Cladocera, Copepoda and Decapoda) in a Pampean shallow hyposaline lake during drought conditions

open access: yesBiología Acuática, 2020
The Sauce Grande Lake, a shallow, eutrophic, and hyposaline lake, was studied through monthly samplings during a year (December 2009- November 2010).
María Belén Alfonso   +4 more
doaj   +1 more source

Primeras observaciones en características reproductivas en poblaciones chilenas de Copépodos Calanoideos de aguas continentales [PDF]

open access: yes, 2014
Los copépodos calanoideos son abundantes en los ensambles zooplanctónicos de aguas continentales de la Patagonia, y en este contexto, se analizaron parámetros de fertilidad en cuatro especies de calanoideos representativos de aguas continentales de la ...

core   +1 more source

Distribution of Boeckella poppei (Mrázek, 1901) (Copepoda: Calanoida) on the Livingston Island, Antarctica

open access: yes, 2021
Livingston Island is the second largest island of the South Shetland Archipelago, Maritime Antarctica. Freshwater fauna in the area is scarcely studied. Previous records are limited and include habitats, which are free of permanent ice or snow cover during the austral summer.
Evtimova, Vesela   +2 more
openaire   +1 more source

Morphometric differences in two calanoid sibling species, Boeckella gracilipes and B. titicacae (Crustacea, Copepoda)

open access: yesIheringia: Série Zoologia, 2012
Calanoid copepods are abundant in South American inland waters and include widespread species, such as Boeckella gracilipes (Daday, 1902), which occurs from the Ecuador to Tierra del Fuego Island.
Patricio De los Ríos Escalante
doaj   +1 more source

Species assemblages of zooplanktonic crustaceans in mountain shallow ponds of Chile (Parque Cañi)

open access: yesZoologia (Curitiba), 2010
Even though the Chilean lakes are characterized by their oligotrophy, a transition from oligotrophy to mesotrophy, due human intervention, has been reported in some lakes.
Patricio De los Ríos, Guido Roa
doaj   +1 more source

Distribution of Boeckella poppei (Mrázek, 1901) (Copepoda: Calanoida) on the Livingston Island, Maritime Antarctic

open access: yesActa zoologica bulgarica, 2023
The available data on the localities (including new localities) of the calanoid copepod Boeckella poppei on the Livingston Island, Maritime Antarctic, are summarised. The results suggest a substantial expansion in the distribution of the species, likely owing to recent climate change and the resulting freeing from permanent ice or snow of additional ...
Ivan Pandourski   +3 more
openaire   +1 more source

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