Roundup: Restless Volcano, Bolivian Andes, and Capelin

Restless Glacier-Covered Volcano on Alaska Peninsula

From Alaska Volcano Observatory: “Unrest continues at Veniaminof. Seismicity remains elevated with weak tremor, but levels have decreased since midweek. Webcam views of the volcano have been obscured by clouds. Cloudy satellite data over the past 24 hours show intermittent elevated surface temperatures. No significant ash emissions have been observed or reported.”

Read more about Veniaminof Volcano here.

Veniaminof Volcano is at current alert level WATCH and current aviation color code ORANGE (Source: Alaska Volcano Observatory).

 

Glacial Lake Outburst Floods in the Bolivian Andes

From Natural Hazards: “Previous research has identified three potentially dangerous glacial lakes in the Bolivian Andes, but no attempt has yet been made to model GLOF inundation downstream from these lakes… We suggest that Laguna Arkhata and Pelechuco lake represent the greatest risk due to the higher numbers of people who live in the potential flow paths, and hence, these two glacial lakes should be a priority for risk managers.”

Read more about GLOF risk in the Bolivian Andes here.

Location of glaciers and potentially dangerous glacial lakes in the Bolivian Andes, as well as the 2009 Keara GLOF event (Source: Natural Hazards).

 

Feeding Ecology of Capelin in a Greenland Fjord

From Polar Biology: “Capelin (Mallotus villosus) is an important trophic node in many Arctic and sub-Arctic ecosystems. In Godthåbsfjord, West Greenland, the zooplankton community has been shown to change significantly from the inner part of the fjord, which is impacted by several glaciers to the shelf outside the fjord. To what extent this gradient in zooplankton composition influences capelin diet during their summer feeding in the fjord is yet unknown.”

Learn more about the feeding ecology of Capelin here.

An illustration of a Capelin (Source: Creative Commons).

 

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