TINA MAYOR
La ría de Tina Mayor, pese a lo que indica su nombre, en el estuario más pequeño de Cantabria que junto con su hermana y vecina la ría de Tina Menor, son protagonistas de la costa occidental de Cantabria. Tierra, mar, montaña y ríos se unen para crear este singular y curioso paisaje.
La Ría tiene una desembocadura estrecha y rocosa con elevadas pendientes, en la misma desembocadura del Deva posee una playa de cantos y gravas conocido como la Playa del Pedredo.

En el curso inicial y medio encontramos un estrecho canal sin vegetación de marisma, la cual es reemplazada por árboles y arbustos dispersos por las orillas, y en zona intermedia del estuario encontramos carrizales, espartinales y juncales en ambas márgenes. .
Su buen estado de conservación es debido al escaso impacto humano que ha permitido que la flora y la fauna se conserve en mejor estado que en otros rías de Cantabria.
Un buen indicador de la calidad de este tramo final del Deva es la presencia de lampreas presentes en este río hasta la zona de “El Matadero”, obstáculo natural aguas arriba en La Hermida.

Uno de los primeros.
Este Milano negro fue fotografiado en la campiña atlántica de Rubayo, Marina de Cudeyo, el 2 de marzo.
Ahora seguro que habrá muchos más haciendo sus vuelos de cortejo.
Espero que os guste

Although it has been, and remains, a major challenge to obtain quantitative data for proper population assessment, there is reason to believe that the Franciscana is threatened throughout its range, and particularly in areas of intensive gillnet fishing. As stated in the IUCN cetacean action plan, the Franciscana "may be at greater risk of extinction than any other cetacean species in the western South Atlantic," and "the greatest immediate requirement" for its conservation is "to reduce levels of incidental mortality in gillnets" (Reeves et al. 2003). Simulations of the Rio Grande do Sul/Uruguay (hereafter RS/URU) subpopulation using a plausible range of assumed rates of increase and an estimated removal rate based on available abundance and bycatch data suggest a decline over three generations of close to 50%, which would meet the decline threshold for EN under criterion A. The suspected reduction in population size and its causes may not have ceased (subcriterion A2), based on actual or potential levels of exploitation (in the form of bycatch) (subcriterion d under A1). Two other lines of evidence (indices) can be interpreted as corroborative of a marked decline in abundance of this subpopulation: (1) a decline of approximately 71% in the bycatch of franciscanas per unit of fishing effort was reported in Uruguay from the 1960s to 1980s; and (2) stranding rates of franciscanas in southern Brazil decreased by nearly 70% between the 1970s and 1990s. The Cetacean Specialist Group, having reviewed the data and analyses presented by the assessors (and see Secchi and Wang 2002), was reluctant to recommend EN status at this time (May 2003). Instead, it was agreed to recommend VU status, on the understanding that a reassessment and re-evaluation would be conducted in the near future, taking into account newly obtained data on abundance and bycatch, and perhaps treating the existing evidence with somewhat more elaborate statistical methods. Consultation and Peer Review: Information included as supporting documentation for this assessment was discussed with participants at the 4th Workshop for the Coordination of Research and Conservation of Franciscana in the Western South Atlantic (held in Porto Alegre, Brazil, in 2000). That group discussed progress on Franciscana research and expressed support for the need to change the IUCN Red List status of this species. This documentation was drafted principally by Eduardo Secchi and John Wang, and their work was edited and revised by Randall Reeves following extensive review by the membership of the Cetacean Specialist Group prior to submission to IUCN. For further details, see Secchi and Wang (2002).



http://www.iucnredlist.org/details/full/41761/0

Alles, capital de Peñamellera Alta desde 1869, año en el que se declaró las dos Peñamelleras

Alles, capital de Peñamellera Alta desde 1869, año en el que se declaró las dos Peñamelleras