oceanexpert oceanexpert

© 2017, UNESCO/IOC Project Office for IODE, Ostend, Belgium   Find us on Google+

Details of Mr. Julio Martinez Portela   


Gender male
Job title Researcher
Department Fisheries
Instituto Español de Oceanografía, Centro Oceanográfico de Vigo PO Box 1552
Tel 34986492111
You must log in with an approved account to view email addresses.
Social Media Links
You must log in with an approved account to view social media links


Degree MSci
Job type Research , Natural Resource Management , Technical Advice & Consulting
Research Area(s) Biological Oceanography, Marine Ecology , Fisheries, Aquaculture , Biological Oceanography, Marine Ecology , Fisheries, Aquaculture
Research Activities Marine biology and fisheries in the SW Atlantic, particularly the distribution and ecology of demersal fish and cephalopods. Since 1989 researcher responsible for the IEO project ?SW Atlantic Fisheries?. Also been working from 1981 to 1987 in the fisheries in the NE Atlantic. Member of the ICES Working Group on Cephalopod Fisheries and Life History, member of the Cephalopods International Advisory Council (CIAC) and expert with the STECF.

French, Portuguese
Research Region 70
Skills/Expertise Fisheries, Marine biology, Oceanography and Remote sensing in the SW Atlantic.
PUBLICATIONS (as reported by Mr. Julio PORTELA)

Guerra A., M. Portela J., del Río J.L. (2011). Cephalopods caught on the outer Patagonian shelf and its upper and medium slope in relation to the main oceanographic features. Fisheries Research, 109 (2011): 179-186.
Portela J.M., Pierce G.J., del Río J.L., Sacau M., Patrocinio T. and Vilela R. (2010). Preliminary description of the overlap between squid fisheries and VMEs on the high seas of the Patagonian Shelf. Fisheries Research, 106 (2): 229-238.
Goetz, S., Laporta, M., Portela, J., Santos, M.B., Pierce, G. (2010). Experimental fishing with an “umbrella and stone” system to reduce interactions of sperm whales (Physeter macrocephalus) and seabirds with bottom-set longlines for Patagonian toothfish (Dissostichus eleginoides) on the High Seas of the Southwest Atlantic. ICES Journal Of Marine Science, 68: 228-238.
Hernandez, G., Goetz, S., Varela, C., Rodriguez, J., Romón, J., Fuertes, J.R., Ulloa, E., Tregenza, N.J.C., Smerdon, A., Otero, M., Tato, V., Wang, J., Santos, B., López, A., Lago, R., Portela, J.M. and Pierce, G.J (2008). Results of a short study of interactions of cetaceans and longline fisheries in Atlantic waters: environmental correlates of catches and depredation events. Hydrobiologia, 10.1007/s10750-008-9501-2.
Wang, J., Pierce, G. J., Sacau, M., Portela, J., Santos, M. B., Cardoso X. and Bellido, J. M. (2006). Remotely sensed local oceanic thermal features and their influence on the distribution of hake (Merluccius hubbsi) at the Patagonian Shelf edge in the SW Atlantic. Fisheries Research, 83: 133-144.
Sacau, M., Wang, J., Arkhipkin, A. I., Portela, J., Pierce, G. J., Brickle, P., Santos, M.B. and Cardoso, X. (2005). The spatio-temporal pattern of Argentine shortfin squid Illex argentinus abundance in the Spanish bottom-trawl fishery in the southwest Atlantic. Aquatic Living Resources, 18: 361-372.
Brickle, P., Laptikhovsky, V. , Arkhipkin, A. and Portela, J. (2005). Reproductive biology of Patagonotothen ramsayi (Regan, 1913) (Pisces: Nototheniidae) around the Falkland Islands. Polar Biology, 10.1007/s00300-005-0090-5.
Arkhipkin, A.I., Middleton, D.A.J., Portela, J.M. and Bellido, J.M. (2003). Alternative usage of common feeding grounds by large predators: the case of two hakes (Merluccius hubbsi and M. australis) in the southwest Atlantic. Aquat. Living Resourc. 16, 487-500
Wang, J, Pierce, GJ, Portela, JM, Bellido, JM and Cardoso, XA., 2002. The spatio-temporal pattern of hake (Merluccius hubbsi) abundance and environmental influence in the Patagonian shelf area. ICES CM 2002/Q: 05 Ocean-Shelf Sea Interactions: Implications for Biology and Fisheries
Pierce GJ, Santos MB, Bishop A, Desormonts S & Portela JM., 2002. The trophic relationships of several commercial finfish species from the southwest Atlantic. ICES CM 2002/N: 13 Environmental Influences on Trophic Interactions
Bishop, AJ, M. B. Santos, G. J. Pierce, J. M. Bellido, M. Rasero, and J. M. Portela., 2002. Morphometric and meristic variation in Argentine hake (Merluccius hubbsi) and southern hake (Merluccius australis) from the southwest Atlantic. ICES CM 2002/Y: 01 The Effects of Fishing on the Genetic Composition of Living Marine Resources
Bellido, JM, Portela, JM, Wang, J and Pierce, GJ., 2002. Trends in the pattern of discarding in the hake (Merluccius hubbsi and Merluccius australis) fishery in the SW Atlantic. ICES CM 2002/V: 01 Unaccounted Mortality in Fisheries
Portela, JM, Arkhipkin, A, Agnew, D, Pierce, G, Fuertes, JR, Otero, MG, Bellido, JM, Middleton, D, Hill, S, Wang, J, Ulloa, E, Tato, V, Pompert, J, Santos, B., 2002. Overview of the Spanish fisheries in the Patagonian Shelf. ICES CM 2002/L: 04 Census of Marine Life
Portela, JM, González MC Bellido, JM and Cardoso, XA., 2002. Preliminary results of a Exploratory Fishing targeting deep-water species off Uruguay. ICES CM 2002/L: 04 Census of Marine Life
Portela, JM, Bellido, JM, Cardoso, XA, Wang, J, Ulloa, E, Tato, V & Otero, MG., 2002. Analysis of the evolution of catch and effort in the Spanish hake fisheries in the Patagonian shelf. ICES CM 2002/L: 04 Census of Marine Life
Hill, S, Agnew, D, Middleton, D, Portela, J, Pierce, G, Fuertes, JR & Wakeford, RC., 2002. Assessment of the Falkland Islands population of Argentine hake Merluccius hubbsi. ICES CM 2002/L: 04 Census of Marine Life
M. Rasero y J. M. Portela, 1998. Relationships between mating and sexual maturation of Loligo gahi females in Falkland waters
J. Martínez Portela S. Iglesias y G. Ramilo, 1997. Pesquerías de mayor interés para la flota española en el Atlántico Sudoccidental
M. Rasero & J.M. Portela, 1996. Occurrence of mated females of Loligo gahi (Cephalopoda: Loliginidae) in the trawling fishery around the Falkland Islands: implications for the fishery and the life cycle
J. Paz, J. Martínez and E. de Cárdenas, 1995. Preliminary Results from the Spanish Bottom Trawl Survey in the NAFO Regulatory Area for the Divisions 3NO.
Julio Martínez Portela, Nélida Pérez Contreras y Valentín Trujillo Gorbea, 1994. Aspectos reproductivos del calamarete (Loligo gahi), el calamar (Illex argentinus) y la merluza (Merluccius hubbsi) en el Atlántico Sudoccidental

Created: 2006-07-20 Last Updated: 2011-04-12 by Julio PORTELA