A spokesman for SMASS said: "Minke whales are the smallest
mysticete species in our waters, and are less powerful swimmers, therefore less able to escape, or surface to breathe, once entangled."
Unlike the
mysticete cetaceans, the boto and the tucuxi did not present a pattern of parallel tracheal folds, because these two species are considered shallow-diving animals and thus do not need to adapt to larger volume changes necessary to make deep dives (Reidenberg & Laitman).
The lowest-frequency noises (1 -20 Hz) are typically caused by seismic activity (e.g., earthquakes); low-frequency noises (20-1000 Hz) are generally caused by shipping and
mysticete whales; medium-frequency noises (1-100 kHz) are generally associated with sea state (e.g., wave action); and high-frequency noises (> 100 kHz) result from thermal action (Wenz, 1962; Urick, 1975; Ross, 2005; Au and Hastings, 2008; Hildebrand, 2009).
During the HICEAS in 2002, 23 cetacean species (18 odontocetes and 5
mysticetes) were encountered, and the abundance of 19 species (18 odontocetes and 1
mysticete) was estimated (Barlow, 2006).
(2009): Caught in the act: trophic interactions between a 4-million-year-old white shark (Carcharodon) and
mysticete whale from Peru.
"It was such a shame to have had to cancel
Mysticete on the final night because of the weather, but I'm glad we managed to get through with just one cancellation.
Event producer Artichoke has announced that
Mysticete, the installation in the River Wear by Catherine Garret, has fallen victim to rising water levels.
45 RESPIRATORY CONSTRAINTS RESTRICT YOUNG
MYSTICETE'S ABILITY TO DIVE
"Mitochondrial Phylogenetics and Evolution of
Mysticete Whales."
Fossil abyssochrysoids also were associated with Eocene cold seeps, wood-falls, and bones of odontocete whales (Squires, 1995: Kiel and Goedert, 2007), and with Miocene cold seeps and the bones of
mysticete whales (Amano and Little, 2005).
The smallest
mysticete is the pygmy right whale (Caperea marginata), which measures up to 23 feet.