Three-year investigations into sperm whale-fall ecosystems in Japan
نویسندگان
چکیده
منابع مشابه
Sperm whale sound production
largest, yet most elusive, creatures inhabiting deep ocean waters. Adult sperm whales undertake long, deep dives (Watkins et al., 1993) into the darkness and high pressure of the mesoand bathypelagic depths. They do this to locate and catch approximately 1000 kg (Lockyer, 1981) of medium-sized squid and fish (Clarke et al., 1993) each day. The most prominent feature of the sperm whale physique ...
متن کاملElectrostatic Interactions in Sperm Whale Myoglobin
The electrostatic free energy contribution to the stability of sperm whale ferrimyoglobin was evaluated according to the static accessibility modified TanfordKirkwood model. The electrostatic free energy contribution of each distinct structural element was divided into one term arising from interactions between it and other elements (interelemental) and another from interactions within the part...
متن کاملSPERM WHALE (Physeter macrocephalus): North Atlantic Stock
STOCK DEFINITION AND GEOGRAPHIC RANGE The distribution of the sperm whale in the U.S. Exclusive Economic Zone (EEZ) occurs on the continental shelf edge, over the continental slope, and into mid-ocean regions (Figure 1). Waring et al. (1993, 2001) suggest that this offshore distribution is more commonly associated with the Gulf Stream edge and other features. However, the sperm whales that occu...
متن کاملAbsorption spectra of sperm-whale ferrimyoglobin.
1. Sperm-whale ferrimyoglobin was found to contain 0.308% of Fe, on a dry weight basis, corresponding to a molecular weight of 18130. The solid takes up moisture to an equilibrium state, and was then assayed to contain 0.280% of Fe. 2. Absorption spectra are presented for acidic ferrimyoglobin, Fe(+)(H(2)O), and its conjugate base, Fe-OH, as well as for the fluoride and cyanide complexes, withi...
متن کاملThe monopulsed nature of sperm whale clicks.
Traditionally, sperm whale clicks have been described as multipulsed, long duration, nondirectional signals of moderate intensity and with a spectrum peaking below 10 kHz. Such properties are counterindicative of a sonar function, and quite different from the properties of dolphin sonar clicks. Here, data are presented suggesting that the traditional view of sperm whale clicks is incomplete and...
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ژورنال
عنوان ژورنال: Marine Ecology
سال: 2007
ISSN: 0173-9565,1439-0485
DOI: 10.1111/j.1439-0485.2007.00150.x