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  • 1
    Electronic Resource
    Electronic Resource
    Warburg Vessel Rack (1952)
    s.l. : American Chemical Society
    Analytical chemistry 24 (1952), S. 1078-1078 
    Details
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ac60066a068
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Manometric Determination of Low Concentrations of Ethylene with Particular Reference to Plant Material (1952)
    s.l. : American Chemical Society
    Analytical chemistry 24 (1952), S. 551-555 
    Details
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ac60063a037
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Evidence for multiple spawning in the tropical oceanic squid Stenoteuthis oualaniensis (Teuthoidea: Ommastrephidae) (1989)
    Springer
    Marine biology 101 (1989), S. 513-519 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Indirect evidence suggests that Stenoteuthis oualaniensis is a multiple spawner, a reproductive strategy not reported previously for squid. After spawning once, S. oualaniensis apparently continues to feed, grow, and mature additional oocytes before spawning again. Squid were caught by jigging at night in waters around the main Hawaiian Islands during four cruises from 1981 to 1987. All females from 200 mm mantle length (ML) to at least 318 mm ML were sexually mature, indicating that considerable growth takes place after reaching sexual maturity. Size-frequency analyses of ovarian oocytes revealed continuous egg production throughout adult life. Mature ova are stored in the oviducts, but oviduct fullness is unrelated to body size, indicating repeat spawning.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00541653
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Development of symbiotic bacterial bioluminescence in a nearshore cephalopod, Euprymna scolopes (1989)
    Springer
    Marine biology 103 (1989), S. 541-546 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The small neritic cephalopod Euprymna scolopes possesses a large glandular light organ that contains the symbiotic luminous bacterium Vibrio fischeri. Adult and immature E. scolopes were caught in the evening with dip nets in shallow water along the shore of Kanohe Bay, Oahu, Hawaii, during late February 1984. The initiation of the symbiosis was investigated by rearing the cephalopods either in seawater taken from aquaria containing adult E. scolopes or in seawater with reduced bacterial concentrations due to filtration or due to absence of adults. Light production was measured during early development. Bioluminescence was not detected in E. scolopes immediately after hatching. Most individulas of E. scolopes that hatched into seawater containing, or previously exposed to, adults produced light within 24 h. Individuals that hatched into filtered seawater did not produce light. The data suggest that each generation aquires an infection from free-living bacteria rather than from the egg, and that light production is dependent on the nutritional state of the host. Access to an initial inoculum of free-living, luminous bacteria seems to be critical for establishing a successful symbiosis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00399586
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  • 5
    Electronic Resource
    Electronic Resource
    Mesopelagic-boundary community in Hawaii: Micronekton at the interface between neritic and oceanic ecosystems (1991)
    Springer
    Marine biology 109 (1991), S. 427-440 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The present study demonstrates that a distinct land-associated community of mesopelagic micronekton exists around the Hawaiian Islands. This “mesopelagic-boundary community” replaces the oceanic mesopelagic community over bottom depths of approx 400 to 700 m and includes about 14 species of fishes, 5 of shrimps and 4 of squids. Similar species of the mesopelagic micronekton have been reported in association with other landmasses at the boundary between the oceanic mesopelagic realm and upper continental or island slopes. These species may form a cosmopolitan “mesopelagic-boundary community” which shows regional differences in taxonomic composition, abundance and diversity. Boundary communities, with populations which are both tightly constrained geographically and relatively accessible to shore-based research programs, offer unique opportunities for studying biological processes of the mesopelagic realm and the interactions between neritic and oceanic populations. Data is presented from three midwater and two neuston sampling projects undertaken around the main Hawaiian Islands between 1987 and 1989; additional evidence from the literature is also discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01313508
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  • 6
    Electronic Resource
    Electronic Resource
    Growth and reproduction in the mesopelagic-boundary squid Abralia trigonura (1994)
    Springer
    Marine biology 119 (1994), S. 413-421 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Abralia trigonura is a small squid that is an important member of the mesopelagic boundary community around Hawaii. Squids were aged by examining statolith growth increments, and various reproductive parameters were measured. Female longevity is ∼6 mo, and they become sexually mature at ∼3.5 mo. Male longevity is the same, but they become sexually mature at ∼2.5 mo. This species appears to be a multiple spawner, and peculiarities in the number of eggs found in the oviducts suggests that they spawn every few days. Possible advantages of this reproductive mode are examined.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00347538
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Eyes and extraocular photoreceptors in midwater cephalopods and fishes: Their roles in detecting downwelling light for counterillumination (1979)
    Springer
    Marine biology 51 (1979), S. 371-380 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The means of detecting downwelling light for counterillumination in several midwater animals has been examined. Eyes and extraocular photoreceptors (drosal photosensitive vesicles in the enoploteuthid squid Abraliopsis sp. B and pineal organs in the myctophid fish Myctophum spinosum) were alternately exposed to overhead light or covered by a small opaque shield above the animal and the bioluminescent response of the animal was monitored. Covering either the eyes or the extraocular photoreceptors resulted in a reduction in the intensity of counterillumination. Preliminary experiments examining the bioluminescent feedback mechanism for monitoring intensity of bioluminescence during counterillumination in the midwater squid Abralia trigonura indicated that the ventral photosensitive vesicles are responsible for bioluminescent feedback.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00389215
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    Planctosphaera (Hemichordata: Enteropneusta) in the Pacific Ocean (1983)
    Springer
    Marine biology 73 (1983), S. 151-153 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Four specimens of the unusual hemichordate larva Planctosphaera sp., previously known only from the North Atlantic Ocean were collected by midwater trawl from depths of 75 to 500 m near the Hawaiian Islands in May 1974 and in September 1977 and 1982. The anatomy of the Pacific specimens is indistinguishable from published descriptions of those from the Atlantic. The distribution of known specimens of planctosphaera in subsurface or deeper waters in both major ocean systems of the world suggests that they are larvae of a widely distributed species, perhaps from abyssal depths.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00406882
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    Paper (German National Licenses)
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  • 9
    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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  • 10
    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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