Biomechanically distinct filter-feeding behaviors distinguish sei ...
2021年5月14日 · Sei whales represent a functional and ecological intermediate in the transition between intermittent and continuous filter feeding. Functionally, sei whales can lunge feed like other rorqual species, skim feed like balaenids, and perform distinctive surface lunges that may represent a biomechanical intermediate between the two behaviors.
Sei Whale - NOAA Fisheries
2023年10月30日 · A feeding sei whale. Credit: NOAA Fisheries/Allison Henry Stock Assessments. Determining the number of sei whales in each population—and whether a stock is increasing or decreasing over time—helps resource managers assess the success of conservation measures.
Sei whale
Sei whales are predominantly skim feeders, swimming close to the surface with mouths open and throat pleats extended to skim large quantities of plankton form the water and filter it through their baleen plates. Their preferred prey is tiny planktonic crustaceans called copepods, but they are also known to feed on krill or small shoaling fish. 3.
Sei whale - Wikipedia
The sei whale migrates annually from cool, subpolar waters in summer to temperate, subtropical waters in winter with a lifespan of 70 years. It is a filter feeder, with its diet consisting primarily of copepods, krill, and other zooplankton. It is typically solitary or can be found in …
Sei Whale Feeding Frenzy - Blue Planet - BBC wildlife - YouTube
2008年9月30日 · Click here to find our more: http://bit.ly/BBCEarthWW A feeding frenzy is taking place, attracting different fish to come and gorge themselves while the feeding is good. However, a huge Sei...
On the Feeding Mechanisms of the Sei Whale (Balaenoptera …
2009年10月21日 · The sei whale, with the smaller flukes, appears to stroke with greater frequency to propel the expanded buccal pouch, during skim-feeding. Stability control may be achieved by the longer extension of the tail stock , thus extending the control surface for greater effectiveness.
the sei whales off California, and causes them to shed their baleen plates; this greatly impairs their feeding ability. Predation on sei whales by killer whales, Orcinus orca, appears to be rare. Natural mortality rates are difficult to estimate, but ap pear to be about 7.5 percent per year in adults, perhaps somewhat greater
Biomechanically distinct filter-feeding behaviors distinguish sei ...
2021年5月1日 · The morphological characteristics that allow sei whales to effectively perform different feeding behaviors suggest that sei whales rapidly evolved their functionally intermediate and...
On the Feeding Mechanisms of the Sei Whale ... - ResearchGate
2010年10月21日 · Sei whales likely represent a functional and ecological intermediate in the transition between intermittent filter feeding and continuous filter feeding, and therefore understanding the...
Sei whales skim feeding and surface lunge feeding. (A) Anterior …
With their ability to facultatively switch between filter-feeding modes, sei whales represent a functional and ecological intermediate in the transition between intermittent and continuous...