Results 51 to 60 of about 5,450 (197)

Cándido López [PDF]

open access: yes, 2012
Fil: López, Hugo Luis. División Zoología Vertebrados. Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: López Miquelarena, Jimena. División Zoología Vertebrados. Facultad de Ciencias Naturales y Museo.
López Miquelarena, Jimena   +1 more
core  

Argentinean pejerrey (Odonthestes bonariensis) : artificial feeding [PDF]

open access: yes, 1997
Para comprobar la factibilidad de la alimentación artificial del pejerrey con pienso balanceado pelletizado y aproximar el porcentaje de proteína en la formulación se realizó un ensayo con cuatro tratamientos: testigo (T) sin alimento artificial ...
Allende, Gabriel M.   +3 more
core  

Global population size and conservation priority areas for the endangered Titicaca grebe

open access: yesThe Journal of Wildlife Management, Volume 88, Issue 8, November 2024.
The Titicaca grebe is an endangered endemic species found solely in Lake Titicaca, which has not had a population census in 20 years. We offer the first update of this species’ population since 2003, and show its population has increased, rather than suffered the decrease that had been assumed.
D. A. Villar   +11 more
wiley   +1 more source

Development of sperm cryopreservation techniques in pejerrey Odontesthes bonariensis

open access: yesAquaculture, 2010
Abstract The pejerrey, Odontesthes bonariensis, is being considered for aquaculture due to its high demand and market price. Reproduction and larviculture studies have demonstrated the feasibility of massive fingerling production, and techniques that prolong life and increase gamete viability can assist in the culture development of this species.
Lichtenstein, Gabriel   +2 more
openaire   +2 more sources

Addressing conflict between fishermen and the Titicaca Grebe (Rollandia microptera) through diet analysis

open access: yesIbis, Volume 166, Issue 4, Page 1395-1403, October 2024.
Human–wildlife conflict is often a driver of species declines, and understanding the material basis of this conflict is the first step in addressing it. The Titicaca Grebe Rollandia microptera is an endangered endemic species found solely in the Lake Titicaca watershed of Peru and Bolivia, and has experienced population declines due to fisheries ...
D. A. Villar   +3 more
wiley   +1 more source

¿El pejerrey puede causar cambios estructurales en un ecosistema?

open access: yesBiología Acuática, 2019
La laguna Del Estado se secó circunstancialmente a comienzos de la década de 1960. El aislamiento hidrológico superficial del ambiente impidió la recolonización masiva de peces.
Fabián Grosman, Pablo Sanzano
doaj  

Limnology in Argentina: An historical account [PDF]

open access: yes, 1994
This short review includes major books, articles and episodes concerned with studies on inland waters that have affected the development of limnology in Argentina.
Lopez, Hugo L., Mariazzi, Aldo A.
core  

Modeling potential consequences of climate‐driven sex reversal on Southern and Summer Flounder population dynamics

open access: yesMarine and Coastal Fisheries, Volume 16, Issue 2, April 2024.
Abstract Objective We investigate the interacting effects of fishery selectivity and sexual dimorphism by using the fisheries for Southern Flounder Paralichthys lethostigma and Summer Flounder P. dentatus as case studies. In both species, females are larger than males, and temperature‐sensitive sex determination can lead to an increased proportion of ...
H. M. Conrad, H. K. Kindsvater
wiley   +1 more source

Germ cell transplantation using sexually competent fish: an approach for rapid propagation of endangered and valuable germlines. [PDF]

open access: yesPLoS ONE, 2009
The transplantation of germ cells into adult recipient gonads is a tool with wide applications in animal breeding and conservation of valuable and/or endangered species; it also provides a means for basic studies involving germ cell (GC) proliferation ...
Sullip K Majhi   +4 more
doaj   +1 more source

La cuenca del Salado: uso y posibilidades de sus recursos pesqueros. [PDF]

open access: yes, 2001
The fishing resources of the Salado Basin are extraordinary important in the context of the inland waters of Argentina. However, the diversity of landscapes in the basin and the lack of continuity in the regional planning , have made difficult a proper ...
Baigún, Claudio R.M.   +4 more
core   +1 more source

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