Results 61 to 70 of about 1,766 (185)

Implicaciones de la alimentación continua sobre la demanda de oxígeno en un pez agástrico con intestino corto (Teleostei: Atherinopsidae)

open access: yesEcosistemas y Recursos Agropecuarios
Continuous illumination and increased feeding periods have enhanced growth in commercial fish species. However, oxygen consumption under these conditions has yet to be previously assessed in agastric short-intestine fish. This study evaluated Chirostoma
Jorge Fonseca-Madrigal   +5 more
doaj   +1 more source

CLOFFAR - update 1 - supplement to Checklist of the Freshwater Fishes of Argentina [PDF]

open access: yes, 2015
Despite the fact that this first update of CLOFFAR contains 15 changes, the number of species has increased by only 4. The main driver for the recent changes is the paper of Thomaz et al., proposing 8 new combinations for stevardiine characiforms.
Koerber, Stefan   +2 more
core  

Physico-chemical characteristics of water and ichthyofauna composition of the Piedras Moras reservoir (Córdoba, Argentina) [PDF]

open access: yes, 2017
El embalse Piedras Moras (32°10,13’S, 64°16,50’W) es el último de una serie de seis que se han construido sobre la cuenca del río Tercero en la provincia de Córdoba (Argentina).
Biolé, Fernanda Gabriela   +3 more
core   +1 more source

Early morphological variation and induction of phenotypic plasticity in Patagonian pejerrey

open access: yesNeotropical Ichthyology
The aim of this work was to study two aspects of phenotypic plasticity in the Patagonian pejerrey Odontesthes hatcheri (Teleostei: Atherinopsidae) the dependence of the early morphology on developmental time and temperature, and the induction of ...
Sonia A. Crichigno   +2 more
doaj   +1 more source

Zooplankton characterisation of Pampean saline shallow lakes, habitat of the Andean flamingoes [PDF]

open access: yes, 2013
The lowland saline shallow lakes in the Pampa de las Lagunas (Argentina), constitute an important habitat for flamingoes Phoenicopterus chilensis Molina and Phoenicoparrus andinus (Philippii).
Barberis, Ignacio Martín   +4 more
core   +2 more sources

Selectividad del zooplancton y solapamiento trófico entre tallas del pez Menidia humboldtiana (Atheriniformes: Atherinopsidae) en el embalse Danxhó, México

open access: yesRevista de Biología Tropical, 2009
El charal Menidia humboldtiana es considerado como una de las especies de gran importancia en la industria pesquera de algunos estados de México. Es necesario conocer el efecto que esta especie ejerce sobre su alimento para saber si seleccionan las ...
Regina Sánchez Merino   +2 more
doaj  

The effect of rearing temperature in larval development of pejerrey, Odontesthes bonariensis: morphological indicators of development

open access: yesNeotropical Ichthyology
It is well known that in pejerrey water temperature not only affects growth rates but also directs the sexual differentiation process. This fact rise the question of how different the development of pejerrey larvae of the same age is when reared at ...
Tomás Chalde   +3 more
doaj   +1 more source

Short communication: A study of food consumption of the deepwater goby, Ponticola bathybius (Kessler, 1877), during spring migration in the southern Caspian Sea [PDF]

open access: yes, 2016
The gobies exhibit a main role in the general production of the Caspian Sea due to their species diversity and unexploited stocks. So, of the 80 fish species known from Iranian part of the Caspian Sea, 10 of them are gobies. The deepwater goby, Ponticola
Abdoli, A.A.   +4 more
core  

A checklist of marine larval trematodes (Digenea) in molluscs from Argentina, Southwestern Atlantic coast [PDF]

open access: yes, 2015
A checklist of cercariae parasitizing marine molluscs from Patagonian coast, Argentina, based on literature sources and new records here presented. In total, cercariae of 31 species of marine digeneans, including 11 new records here presented, are known ...
Bagnato, Estefanía   +3 more
core   +2 more sources

Consequences of temperature and temperature variability on swimming activity, group structure, and predation of endangered delta smelt [PDF]

open access: yes, 2019
The effects of water temperature on individual and group movement behaviour in prey fish can affect ecological interactions such as competition and predation, but how variability in temperature influence fish behaviour is less understood.
Baxter, RD   +7 more
core   +1 more source

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