Results 41 to 50 of about 261,364 (361)

Distribution of Oikopleura Dioica (Tunicata, Appendicularia) associated with a coastal frontal system (39°- 41°s) of the SW Atlantic ocean in the spawning area of Engraulis Anchoita anchovy [PDF]

open access: yes, 2013
Among tunicates, the small planktonic appendicularians generally comprise a significant fraction of the mesozooplankton in frontal systems. The summer 2011 distribution (vertical and spatial) of Oikopleura dioica was studied in terms of abundance ...
Capitanio, Fabiana Lia   +3 more
core   +4 more sources

Pathology associated with larval Eustrongylides sp. (Nematoda: Dioctophymatoidea) infection in Galaxias maculatus (Actinopterygii: Galaxiidae) from Patagonia, Argentina [PDF]

open access: yes, 2019
Helminth infections within tissues tend to be subjected to a host response that can include encapsulation and melanization to isolate the parasite. The effectiveness of this response depends on the host species. During a survey of parasites of the native
Brugni, Norma Leonor   +2 more
core   +1 more source

Biodiversidad de Platyhelminthes parásitos en México

open access: yes, 2020
Los platelmintos constituyen el grupo de gusanos parasitos de vertebrados silvestres mas numeroso de Mexico; hasta la fecha se han descrito 1 015 especies nominales: 544 de trematodos, 269 de monogeneos y 202 de cestodos, que en conjunto representan el 7.
Luis García-Prieto   +2 more
semanticscholar   +1 more source

MALDI-MS argininyl bufadienolide esters fingerprint from parotoid gland secretions of Rhinella arenarum : age, gender and seasonal variation [PDF]

open access: yes, 2018
In many amphibians, the granular glands can be grouped in special regions forming macroglands. This is the case of toads, characterized by the presence of a pair of parotoid macroglands, strategically located to give protection by poison release in case ...
Erra Balsells, Rosa   +4 more
core   +1 more source

Biodiversidad de Medusozoa (Cubozoa, Scyphozoa e Hydrozoa) en México

open access: yes, 2020
Con el fin de actualizar y resumir la informacion sobre la diversidad de los medusozoarios presentes en aguas mexicanas, se realizo una revision por familia de los registros disponibles para establecer el estado actual de nuestro conocimiento de la ...
R. Gasca, Lucio Loman-Ramos
semanticscholar   +1 more source

A new species of Paraberrapex Jensen, 2001 (Cestoda: Lecanicephalidea) from Squatina guggenheim Marini (Squatiniformes: Squatinidae) off Argentina [PDF]

open access: yes, 2016
Paraberrapex atlanticus sp. n. (Cestoda, Lecanicephalidea) is described from the spiral intestine of the angel shark Squatina guggenheim Marini from coastal waters off Buenos Aires Province, Argentina. Paraberrapex atlanticus sp. n.
Ivanov, Veronica Adriana   +1 more
core   +1 more source

Reformar los instrumentos de política agropecuaria perjudiciales para la biodiversidad en Colombia, un objetivo estratégico

open access: yesNaturaleza y Sociedad: Desafíos Medioambientales, 2022
El crecimiento de la agricultura y su posible impacto perjudicial sobre la biodiversidad dependen en gran medida de los instrumentos de política por medio de los cuales se estimulan el incremento de la producción y el mejoramiento del bienestar de la ...
Ricardo Torres C.
doaj   +1 more source

An open-access platform for camera-trapping data [PDF]

open access: yes, 2018
In southern Mexico, local communities have been playing important roles in the design and collection of wildlife data through camera-trapping in community-based monitoring of biodiversity projects. However, the methods used to store the data have limited
Lavariega, Mario César
core   +3 more sources

Density and gender segregation effects in the culture of the caridean ornamental red cherry shrimp Neocaridina davidi Bouvier, 1904 (Caridea: Atyidae) [PDF]

open access: yes, 2017
The effect of density on growth, sex ratio, survival, and biochemical composition of the red cherry shrimp, Neocaridina davidi Bouvier, 1904, was studied to determine optimum rearing conditions in this ornamental species.
Delevati Colpo, Karine   +3 more
core   +2 more sources

BIODIVERSIDAD DE LA FLORA VASCULAR DE LA PROVINCIA DE MISIONES, REGIÓN PARANAENSE ARGENTINA

open access: yes, 2020
En este trabajo presentamos un inventario de las plantas vasculares de la provincia de Misiones, que incluye un total de 3418 taxones que representan mas del 30% del total de las plantas presentes en la Argentina.
C. Zanotti, H. Keller, F. O. Zuloaga
semanticscholar   +1 more source

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