. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 270 B. A. SEIBEL ET AL Table III Buffering capacit r '"tie muscle of pelagic cephalopodsfrom California and Hawaii measured al 20°C: wet weight and minimum depth of adult occurrence (MDO) are also given Species Wet weight (g) MDO(m) Range Mean ± SE Range Mean ± SE California Order Teuthoidea Gonatusonyx 100 1 — — C 'hiroleitlhis calyx 300 5 Mastigoteuthis pyrodes 375 2 ,96.^8 1 Cranchia scabra 10 2 , , Order Octopoda Ja
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 270 B. A. SEIBEL ET AL Table III Buffering capacit r '"tie muscle of pelagic cephalopodsfrom California and Hawaii measured al 20°C: wet weight and minimum depth of adult occurrence (MDO) are also given Species Wet weight (g) MDO(m) Range Mean ± SE Range Mean ± SE California Order Teuthoidea Gonatusonyx 100 1 — — C 'hiroleitlhis calyx 300 5 Mastigoteuthis pyrodes 375 2 ,96.^8 1 Cranchia scabra 10 2 , , Order Octopoda Japetflla heat hi 600 3 ± Order Vampyromorpha I 'ampyroteuthis mjernalis 600 13 ± 3. 33 ± Hawaii Order Teuthoidea Sthenoteuthis oualaniensis 10 1 — 1 10 Chiroleuthis imperawr 300 3 ± ± Order Octopoda Japetella diaphana 700 7 1 19. 10 ± + cephalopods off California and Hawaii. This decline with increasing MDO is significantly steeper in slope than that observed for pelagic fishes and crustaceans (Fig. 2) (Chil- dress, 1975; Torres el al., 1979). The large decline results from both higher rates among shallower cephalopods and lower rates among many cephalopods living at depth. This means that many deep-living cephalopods have metabolic rates similar to those of midwater jelly- fishes (Thuesen and Childness, 1994). The presence of 100T I '8 D) m Minii n Depth of Occurrence (m) Buffering en. • Uy (slykes) of mantle muscle as a function of mini::, nth ofoccuru-nce in meters for nine cephalopods mea- sured fn M rniaand Hawaii. The regression is y= ~067±0lW (f = 0.()() . 85). a strong decline in cephalopods, fishes, and crustaceans suggests, however, that the selective factors that influ- ence metabolic parameters are similar at any given depth for all three groups. Buffering capacity has been used in
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
