Results 11 to 20 of about 289 (111)

Performance Parameters of Paralarvae and Postparalarvae Rearing of Patagonian Red Octopus, Enteroctopus megalocyathus, under Experimental Conditions

Aquaculture Research, Volume 2024, Issue 1, 2024.
Patagonian red octopus, Enteroctopus megalocyathus, an interesting species for Chilean aquaculture diversification, requires the improving of their experimental technology to obtain early juveniles. The first objective of the study was to enhance aspects of feeding and temperature management in broodstock, egg incubation, paralarvae rearing, and early ...
Iker Uriarte, María Hernández, Fernanda Peñailillo, Nicole Montero, Ranferi Gutiérrez, Varinia Araya, Viviana Espinoza, Jorge Hernández, Ricardo Enríquez, Ana Farías, Carlos Rosas, Jianguang Qin   +11 more
wiley   +2 more sources

Effect of broodstock diet on the fecundity and biochemical composition of eggs of the Patagonian red octopus (Enteroctopus megalocyathus Gould 1852)

Ciencias Marinas, 2010
Twelve females of the Patagonian red octopus Enteroctopus megalocyathus, of 1.4 ± 0.2 kg, were maintained at 12 ºC under three conditioning treatments: T1 (F10%), frozen fish at 10% daily body weight (bwt d–1); T2 (FC (3:1) 10%), mix (3:1) of frozen ...
A Farías, JC Navarro, V Cerna, S Pino, I Uriarte   +4 more
doaj   +5 more sources

Maturation trade-offs in octopus females and their progeny: energy, digestion and defence indicators. [PDF]

PeerJ, 2019
Sexual maturation and reproduction influence the status of a number of physiological processes and consequently the ecology and behaviour of cephalopods.
Olivares A, Rodríguez-Fuentes G, Mascaró M, Sanchez Arteaga A, Ortega K, Caamal Monsreal C, Tremblay N, Rosas C.   +7 more
europepmc   +3 more sources

TWO NEWAGGREGATASPECIES (APICOMPLEXA: AGGREGATIDAE) INFECTINGOCTOPUS TEHUELCHUSANDENTEROCTOPUS MEGALOCYATHUS(MOLLUSCA: OCTOPODIDAE) IN PATAGONIA, ARGENTINA

Journal of Parasitology, 2000
During a long-term study carried out between 1981 and 1996 on the biological and fishery aspects of octopuses inhabiting the Gulfs of San Matías, San José, and Nuevo, Patagonia, Argentina, 2 new species of Aggregata (Apicomplexa: Aggregatidae) were found in the digestive tracts of Octopus tehuelchus d'Orbigny, 1834 (prevalence 72%) and Enteroctopus ...
Sardella, Norma Haydee, Re, Maria Edith, Timi, Juan Tomas   +2 more
exaly   +4 more sources

How size relates to oxygen consumption, ammonia excretion, and ingestion rates in cold (Enteroctopus megalocyathus) and tropical (Octopus maya) octopus species

Marine Biology, 2009
The scaling of metabolic rates with body mass is one of the best known and most studied characteristics of aquatic animals. Herein, we studied how size is related to oxygen consumption, ammonia excretion, and ingestion rates in tropical (Octopus maya) and cold-water (Enteroctopus megalocyathus) cephalopod species in an attempt to understand how size ...
Ana Farias, Iker Uriarte, Jorge Hernandez   +2 more
exaly   +7 more sources

Changes in the foraging strategy of female South American sea lions (Carnivora: Pinnipedia) after parturition. [PDF]

, 2012
This study tests the hypothesis that female South American sea lions shift from off-shore, pelagic prey to coastal, benthic prey after parturition in order to reduce the foraging trip duration and hence the time pups remain unattended on the beach during
Aguilar, Àlex, Ameghino, Santiago, Cardona Pascual, Luis, Crespo, Enrique A., Drago, Massimiliano, García, Néstor   +5 more
core   +7 more sources

Embryonic development, hatching time and newborn juveniles of Octopus tehuelchus under two culture temperatures [PDF]

, 2021
The development of cephalopods early life stages is strongly influenced by environmental variables, especially temperature. Octopus tehuelchus (d'Orbigny, 1834) is an Atlantic Patagonian fishery resource currently being studied as a new species for ...
Alves, Berrueta, Bocco, Boletzky, Boletzky, Boletzky, Boletzky, Boletzky, Boletzky, Boletzky, Bouchaud, Bouchaud, Butler-Struben, Caamal-Monsreal, Ciotti, Clarke, Espinoza, FAO, Farías, Fassiano, Forsythe, Grigoriou, Higgins, Hochberg, Iglesias, Iribarne, Iribarne, Iribarne, Julián Pontones, Juárez, Klaich, Klaich, Kubodera, McCullagh, Messenger, Monsalvo-Spencer, Naef, Nande, Narvarte, Nicolás Ortiz, Noyola, Noyola, Olivares, Oosthuizen, Ortiz, Ortiz, Ortiz, Parra, Pimentel, Pinheiro, Pujals, Ramiro Braga, Repolho, Rivas, Rosa, Rosas, Ré, Ré, Ré, Sakurai, Sanchez-García, Schneider, Schwarz, Silvina Van der Molen, Solorzano, Storero, Storero, Storero, Sweeney, Uriarte, Uriarte, Uriarte, Uriarte, Uriarte, Uriarte, Valverde, Vidal, Vidal, Vidal, Vidal, Villanueva, Villanueva, Villanueva, Villanueva, Williams, Young, Zar, Zheng, Zuur, Zúñiga   +89 more
core   +1 more source

Eye Lens Structure of the OctopusEnteroctopus megalocyathus: Evidence of Growth [PDF]

Journal of Shellfish Research, 2011
ABSTRACT The need for age determination for the proper management of octopus fisheries has directed research attention to the few hard structures in the octopod's soft body, beak, statoliths, and the vestigial shell. So far, none of these structures have proved reliable or practical for the purpose.
Baqueiro Cardenas, Erick R., Medrano Correa, Sonia, Contreras Guzman, Ramiro, Barahona, Nancy, Bricenos, Felipe, Jose Villegas, Maria, Paredes, Rodolfo   +6 more
openaire   +3 more sources

The diet of adult and chick rock shags (Phalacrocorax magellanicus) inferred from combined pellet and stable isotope analyses [PDF]

, 2020
The current information about the diet composition of the rock shag (Phalacrocorax magellanicus) in the SW Atlantic coast comes mainly from conventional pellet or stomach content analysis from a few locations situated in northern Patagonia (Chubut ...
Frere, Esteban, Gandini, Patricia Alejandra, Millones, Ana, Morgenthaler, Annick   +3 more
core   +1 more source

Evaluating the Effects of Formulated Moist Diets on Juveniles of Patagonian OctopusEnteroctopus megalocyathus(Gould 1852) [PDF]

Journal of Shellfish Research, 2010
The aim of this study was to evaluate the performance of Patagonian octopus fed with moist diets formulated with several local feed ingredients. All formulated diets were based on crab paste (70%) and the experimental feed ingredient (30%). Experiment 1 assayed salmon meal, prime sardine meal, and wheat gluten, using fresh fish as a control; experiment
Farias, Ana, Pereda, Sandra V., Uriarte, Iker, Doerner, Jessica, Cuzon, Gerard, Rosas, Carlos   +5 more
openaire   +3 more sources