Recursos Marinos y Pesquerías

39 th CIESM Congress-Venice, Italy, 10-14 May 2010

09/05/10 , 09:05:20 pm

G. Cambiè, A. Cheilari, S. Kavadas  and G. Petrakis. Depth and mesh size effect on discarding practices in trammel net fishery.

(Poster oral presentation)

II International Symposium in Marine Science, Vigo-Spain. 27-30 April 2009

24/04/09 , 03:04:16 pm

Fernández-Márquez, D., Pita, P. and Muiño R. (2009). Spatial and temporal variability in the epibenthic megafauna assemblages in the marine reserve of fishing interest Os Miñarzos: influence of protection. II International Symposium in Marine Sciences. Vigo.

Abstract: The Marine Reserve of Fishing Interest Os Miñarzos (Galicia, NW Spain) is the first marine protected area declared in the whole Iberian Atlantic coast. Although administrative declaration took place on May 2007, it did not become effective until December 2007. The reserve has an extension of 2074 ha and it is made up by two no-take zones (where it is forbidden to practise any activity, excepting scientific research), and by a partially protected area, where restrictive rules about fishing and gathering shellfish were instaured.

This study describes the distribution and abundance of the epibenthic megafauna in the different zones of the reserve to monitor the possible future effects of the protection measures. Here we present our first year monitoring results, which establish the baseline conditions to test the magnitude of the protection effects in the years to come.

We have employed a BACI design (Before-After-Control-Impact), contempling three different level protection zones and uses: a closed area, a partially protected area, and an adjacent non-protected area (control zone). For these three zones species abundance and distribution were estimated by means of 100 m long transects. Two different transect sampling took place in each zone, covering sandy and rocky substrates respectively. Species abundance and distribution have been seasonally estimated in each zone. A SCUBA diver identified and counted the epibenthic megafauna in situ inside a frame of 0.25 m2 each 10 m. Species that could not be identified in situ were photographed or brought to the laboratory for identification.

We analysed the spatial and temporal differences in the composition, diversity and abundance of the epibenthic megafauna assemblages between the zones, in function of protection level, type of substrate, and season of the year.

Development and prospective of the Galician TURF system – The case of the gooseneck barnacle fishery (Mote Simposium)

18/11/08 , 10:11:24 pm

(version de alta resolución, en jpg 1.4 MB)

Abstract: Galicia is an autonomous Spanish region with full authority over the management of its coastal fisheries. In 2006 Galician shellfisheries targeted approximately 55 species (18,500 tons, $191 millions), involving nearly 16,000 fishers distributed in 62 fishers’ organizations known as “confrarías”. In 1992 the regional government introduced a new model for Galician small-scale, spatially structured fisheries targeting sedentary resources, so called “S-fisheries” (bivalves, equinoderms, gastropods, annelids and the crustacean gooseneck barnacle P. pollicipes). It promoted a co-management system between fishers’ organizations and the fisheries authority based on territorial use rights (TURFs). Under the new regime there is a requirement for any S-fishery to have an approved annual plan of exploitation and management. Since 2000 detailed information is obligatory, including a list of fishers and boats, a chart of exploited grounds, specification of production and economic objectives, a stock assessment, daily records from previous years (effort, catch, CPUE, sales and fishing area), harvesting, surveillance and trade plans, stock enhancement actions, and a financial plan. The management plan is normally prepared by a “barefoot ecologist” (sensu Prince 2003) working at the confraría with government funding thanks to an arrangement that started in 1996 (up to now 40 out of 62 confrarías are involved in this plan). The “barefoot ecologist” is usually a Biology or Marine Science graduate working as a shellfish resource management assistant, dealing with not only data collection and analysis but also on fishers´ organization improvement. The development, daily implementation and prospective of the Galician model are illustrated in this poster with the gooseneck barnacle fishery as an example. The role of the “barefoot ecologists” on the sustainability of these fisheries is highlighted.

The Spatial Dimensions of Fisheries: Putting All in Place

17/11/08 , 03:11:33 pm

Durante los días 11-13 de Noviembre tuve la oportunidad de asistir en Sarasota (Florida) a The Seventh William R. and Lenore Mote International Symposium in Fisheries Ecology sobre la dimensión espacial de las pesquerías.

Este simposio fue decidado a la memoria de Bob Johannes (1936-2002), ecólogo marino que fue el primero en reconocer la importancia del conocimiento tradicional de los pescadores a la hora de gestionar pesquerías (Words of the Lagoon: Fishing and Marine Lore in the Palau District of Micronesia. 1981).

Entre los temas recurrentes que surgieron a lo largo del simposio estuvieron la zonación o creación de zonas marinas con usos diferenciados, la asignación de derechos de uso a los pescadores y el papel de las reservas marinas como elementos ‘control’ .

Además, los principios de Elinor Ostrom acerca de la gestión de recursos colectivos estuvieron presentes a lo largo de buena parte de las presentaciones. Se hizo hincapié en la importancia de no ‘reinventar la rueda’ y mirar más a los avances que se han hecho en otras disciplinas como la sociología y la economía que pueden ser directamente aplicables a la gestión de pesquerías.

La perspectiva legal la puso Chad J. McGuire y la orientación más económica Martin Smith y James Sanchirico. El punto de humor lo puso el barril de cerveza donado por el ausente Hunter Lenigan (foto).

En general el ambiente fue bueno y las mesas redondas y preguntas dieron lugar a problemas interesantes.

Hubo varias ausencias importantes (aparte de Lenihan). Ray Hilborn y Steve Martell no pudieron asistir. Carl Walters asistió, pero en general estuvo bastante ausente, apareciendo sólo para sus charlas y en momentos muy localizados.

Nuestro grupo de investigación participó con un póster presentado por Gonzalo Macho:

- Gonzalo Macho, Juan Freire and José Molares. Development and prospective of the Galician TURF system (NW Spain): The case study of the gooseneck barnacle (Pollicipes pollicipes) fishery.

Por otro lado, se entregaron dos premios a jovenes investigadores. Uno al mejor póster (Ronald Maliao – Impacts of comanagement of marine protected areas in the Philippines) y otro a la mejor charla (Geoffrey Shester – Empirical analysis of fine-scale spatial behaviour and fishing strategies in the Baja California lobster fishery) .

Además, se discutieron los posibles temas para el siguiente simposium que se celebrará dentro de dos años. Entre los más probables están:

• Relación entre acuicultura y stocks salvajes.
• La importancia de la pesca recreativa en la gestión de pesquerías.
• Cambio climático.

Congreso CoastGIS 07

15/10/07 , 07:10:43 am

La semana pasada la “sección SIG” de este grupo participó en el congreso CoastGIS 07, en Santander. Un congreso donde se exponen trabajos desarrollados en la costera (gestión, conservación, investigación…) aplicando en todos ellos herramientas SIG.
Se presentaron dos posters a este congreso, que se pueden consultar aquí.

Oil spill effects on subtidal seabeds assessed by scuba divers [Poster]

07/07/05 , 07:07:20 pm

Pablo Pita & Juan Freire. Preliminary analyses of the status of the Galician subtidal
seabed after the Prestige oil spill assessed through direct observations by
scuba divers. Poster (jpg). Working paper (pdf).

VERTIMAR 2005 – Symposium on marine accidental oil spills. 13 – 16 july 2005, Universidade de Vigo. Vigo (Spain).

Paper also available at FEDAS website

Continue reading Oil spill effects on subtidal seabeds assessed by scuba divers [Poster]…

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