Results 41 to 50 of about 289 (111)

Otaria byronia, South American Sea Lion [PDF]

open access: yes, 2016
El texto incluye una revisión taxonómica, el rango de distribución, información poblacional, ecológica, genética, amenazas y estado de conservación.Fil: Cardenas Alayza, S.. No especifica;Fil: Crespo, Enrique Alberto.
Cardenas Alayza, S.   +2 more
core   +1 more source

Effect of temperature increase on the embryonic development of Patagonian red octopusEnteroctopus megalocyathusin controlled culture

open access: yesAquaculture Research, 2015
One of the major problems involved in the controlled cultivation of Patagonian red octopus (Enteroctopus megalocyathus) is its long embryonic period ranging between 150–176 days, after which the hatching of planktonic paralarvae is achieved. The effect of temperature on the incubation of E. megalocyathus eggs was studied with the aim of establishing if
Iker Uriarte   +5 more
openaire   +1 more source

Uso del microhábitat por el protozoo parásito Aggregata patagonica Sardella, Ré & Timi, 2000 (Apicomplexa: Aggregatidae) en su hospedador definitivo, el pulpo Enteroctopus megalocyathus (Gould, 1852) (Cephalopoda: Octopodidae) en el sur de Chile [PDF]

open access: yesRevista chilena de historia natural, 2005
Los protozoos de la familia Aggregatidae requieren de dos hospedadores para completar su ciclo biológico: un crustáceo y un cefalópodo. En este estudio se busca evidenciar si existe un uso diferencial de microhábitats de las infrapoblaciones de Aggregata patagonica entre dos zonas del tracto digestivo de su hospedador definitivo, el pulpo Enteroctopus ...
IBÁÑEZ, CHRISTIAN M.   +2 more
openaire   +3 more sources

Estrategia de alimentación de los estadios juveniles tempranos de la centolla Lithodes santolla en el Golfo San Jorge, Argentina [PDF]

open access: yes, 2013
Se analizó el contenido estomacal de 313 ejemplares juveniles de centolla de ambos sexos con longitudes de caparazón (CL) entre 8,40 y 49,04 mm, estudiándose la influencia del sexo, talla, estado de muda y estación del año. Los animales fueron capturados
Balzi, Pamela   +2 more
core   +1 more source

El uso de los recursos tróficos de cuatro especies simpátricas de cormoranes (phalacrocorax gaimardi, p. magellanicus, p. brasilianus y p. atriceps) en la Ría Deseado, provincia de Santa Cruz [PDF]

open access: yes, 2019
La competencia interespecífica por los recursos tróficos es considerada como la mayor fuerza de organización y estructuración de las comunidades de animales, y afectaría la manera en que las especies coexisten.
Morgenthaler, Annick
core   +2 more sources

Effect of two extruded diets with different fish and squid meal ratio on growth, digestibility and body composition of Octopus vulgaris [PDF]

open access: yes, 2013
[ES] En el presente trabajo se ha estudiado el crecimiento y la composición corporal del pulpo común (Octopus vulgaris), alimentado con dos dietas extrusionadas con diferente proporción de harina de pescado y calamar (1:1 y 3:1 de harina de pescado ...
AOAC   +32 more
core   +1 more source

Geographic variability of Octopus insularis diet: from oceanic island to continental populations [PDF]

open access: yes, 2016
Sherpa Romeo green journal. Open access article. Creative Commons Attribution License (CC BY) applies.A predator’s choice of prey can be affected by many factors.
Barbosa, Jaciana C.   +4 more
core   +4 more sources

Population biology and ecology of the North Pacific giant octopus in the eastern Bering Sea [PDF]

open access: yes, 2016
Thesis (Ph.D.) University of Alaska Fairbanks, 2016The North Pacific giant octopus (Enteroctopus dofleini) is an important member of pan-Pacific coastal ecosystems and represents a large incidental catch in Alaska; however little is known about the ...
Brewer, Reid
core  

Octopus Magnificus (Cephalopoda: Octopodidae), A New Species of Large Octopod from the Southeastern Atlantic [PDF]

open access: yes, 1991
A new species of octopod, Octopus magnificus, is described based on a total of 131 specimens from the southeastern Atlantic. The species has been collected from 26°03′S, 13°43′E to 34°29′S, 25°36′E between 2–560 m of depth, mainly on fine sandy bottom ...
Roeleveld, M. A.   +2 more
core  

Techniques for Estimating the Age and Growth of Molluscs: Cephalopoda [PDF]

open access: yes, 2018
Global abundances and commercial fisheries of cephalopods have increased over recent decades, creating a need for effective fishery management. This management is often focused on the ability to ascertain the age structure of key populations.
Arkhipkin, A.I.   +6 more
core   +1 more source

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