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Our planet is experiencing an increase in the concentration of atmospheric carbon dioxide (CO 2 ) unprecedented in the past 800 000 years. About 30% of excess atmospheric CO 2 is absorbed by the oceans, thus increasing the concentration of carbonic acid and reducing the ocean's pH. Species able to survive the physiological stress imposed by ocean acidification may still suffer strong indirect negative consequences. Comparing t...
Shallow and deep lunge feeding of humpback whales in fjords of the West Antarctic PeninsulaNARA Subscribed
Humpback whales ( Megaptera novaeangliae ) belong to the class of marine mammals known as rorquals that feed through extraordinarily energetic lunges during which they engulf large volumes of water equal to as much as 70% of their body mass. To understand the kinematics of humpback lunge feeding, we attached high‐resolution digital recording tags incorporating accelerometers, magnetometers, pressure and sound recording to whal...
Cultural eutrophication, anoxia, and ecosystem recovery in Meretta Lake, High Arctic CanadaNARA Subscribed
We studied the effects of four decades of cultural eutrophication on Meretta Lake, in the Canadian High Arctic, through a multiproxy analysis of its sediments, including sedimentary pigments, metal concentrations, stable isotope ratios, chironomids, and diatoms. While Meretta Lake's biota clearly responded to nutrient inputs, the manner in which the changes differed from those expected in temperate lakes underlined the profoun...
Dillman, C.B., Bergstrom, D.E., Noltie, D.B., Holtsford, T.P. & Mayden, R.L. (2010). Regressive progression, progressive regression or neither? Phylogeny and evolution of the Percopsiformes (Teleostei, Paracanthopterygii). — Zoologica Scripta , 40 , 45–60. Cave animals have fascinated scientists for centuries, and clades consisting primarily of cave‐adapted species are even more intriguing. The percopsiforms are an enigmatic g...
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