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  • 1
    Electronic Resource
    Electronic Resource
    Life history of Gonatus onyx (Cephalopoda: Teuthoidea): deep-sea spawning and post-spawning egg care (2000)
    Springer
    Marine biology 137 (2000), S. 519-526 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  A reproductive strategy consisting of deep- water spawning and egg-care was inferred for the midwater squid Gonatus onyx Young, 1972. Brooding females and associated eggs and hatchlings, captured between 1250 and 1750 m depth off southern California, are described. Brooding females appear to be senescent and lack tentacles. Large eggs of this species (3 mm) at cold temperatures (3 °C at capture depth) may require as long as 9 mo to develop. The high lipid content of the digestive gland in adult females of this species may provide fuel to support such an extended “brooding” period.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002270000359
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Luminescence from non-bioluminescent tissues in oceanic cephalopods (1979)
    Springer
    Marine biology 53 (1979), S. 69-77 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Several tissues (e.g. kidney, blood, digestive gland) in oceanic cephalopods which do not exhibit in vivo bioluminescence, luminesce when homogenized in the presence of air or when simply exposed to air in a vial (blood). The source of the luminescence appears to be a luciferin: treatment of kidney homogenates and blood with a photophore extract presumably containing luciferase resulted in a 20-fold increase in light production. Luminescence was also found in the renal fluid, which may be the source of luminescent clouds produced by squids. The variability in luminescence found in some tissues of cephalopods appeared to be related to feeding. Luminescence was also detected in the digestive glands of midwater octopods.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00386530
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Luminescent flashing in the midwater squids Pterygioteuthis microlampas and P. giardi (1982)
    Springer
    Marine biology 69 (1982), S. 299-308 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The luminescent flashing capabilities and swimming behavior were examined for two species of small midwater squids (Pterygioteuthis microlampas and P. giardi). Recently captured squid were placed in a small aquarium, where their movements and luminescent flashes could be recorded with an image intensifier, a photomultiplier tube and associated equipment. Flashing behavior was initiated by disturbing the squid with an eletrical shock. The following 4 behaviors were observed: (1) a short flash and a rapid departure from the electrode; (2) a short flash and a delayed, slow departure from the electrode; (3) a longer flash persisting after a rapid departure from the electrode; (4) a longer flash when departure was prevented by continuing the shock. Luminescent flashes probably have a general defensive function, discouraging or disrupting an attack by potential predators, and within this context there may exist numerous strategies involving flashes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00397495
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Nemertean collections at the Santa Barbara Museum of Natural History: type specimens and vouchers for Wesley R. Coe's 1940 publication (1997)
    Springer
    Hydrobiologia 365 (1997), S. 291-300 
    Details
    ISSN: 1573-5117
    Keywords: Nemertea ; collections ; Coe
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The Department of Invertebrate Zoology at the SantaBarbara Museum of Natural History houses a smallcollection of nemerteans from the Eastern PacificOcean. At present the collection containsapproximately 2000 specimen lots stored in alcohol. The historically important elements of the collectionwere obtained in transfers from the Allan HancockFoundation of the University of Southern California,the Kerkoff Marine Laboratory of the CaliforniaInstitute of Technology, and the Benthic InvertebrateMuseum of Scripps Institution of Oceanography. Thespecimens in these three collections voucher manyof the species treated in Wesley R. Coe's 1940revision of the nemerteans of the west coast of theAmericas. Type specimens were located for 4 of the 5new species group taxa and for 1 new subspecies grouptaxon erected in that publication. The Allan HancockFoundation material utilized by Coe was collected inthe 1930's during Pacific expeditions of the R/V Velero III. The material assembled by George andNettie MacGinitie at the Kerkoff lab contained anumber of specimens collected during the same timeperiod. The specimens from Coe's material at ScrippsInstitution of Oceanography were collected by TheodoreBullock and students in central California in 1939.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003178404193
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    Paper (German National Licenses)
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