Oxygen Consumption Rate of Young-of-the-Year White Sharks, Carcharodon carcharias, during Transport to the Monterey Bay Aquarium

Ezcurra, Juan M.; Aquarium, Monterey Bay; Lowe, Christopher G.; Beach, Long; Mollet, Henry F.; Ferry, Lara A.; O’Sullivan, John B.

doi:10.1201/b11532-4

Cited by 17 publications

(20 citation statements)

References 28 publications

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“…12 and that measured by Refs. 13 (56.6 versus 55.1 g O 2 h −1 for 943 kg sharks), whereas our estimate of absolute MR (161.8 g O 2 h −1 for 943 kg sharks) is about three times higher. This suggests that, whereas we have estimated metabolic rate in actively swimming animals (RMR), Ref.…”

Section: Discussioncontrasting

confidence: 75%

“…Given that absolute MR scales with body size with an exponent of ~0.8 for most fish including sharks1516, it is unsurprising that our mass-specific MR estimate is higher than that of a much larger animal. However, if the measurements of SMR in ~30 kg sharks13 and our measurements of MR in 428 kg sharks are scaled upwards using a mass exponent of 0.79 (Ref. 13), there is strong agreement in absolute MR estimated by Refs.…”

Section: Discussionsupporting

confidence: 52%

“…However, if the measurements of SMR in ~30 kg sharks13 and our measurements of MR in 428 kg sharks are scaled upwards using a mass exponent of 0.79 (Ref. 13), there is strong agreement in absolute MR estimated by Refs. 12 and that measured by Refs.…”

Section: Discussionsupporting

confidence: 52%

“…where by the Log value in the intercept 246 in Eq (1) represents the standard (equivalent to resting in an obligate ram-ventilator) MR (SMR, mg O 2 kg −1 hr −1 ) calculated during the transport of captive YOY white sharks13, the slope 0.58 Eq (1) represents that determined for a shortfin mako shark, and U in Eq (1) is the value calculated from our swim speed estimates (TL s −1 ).…”

Section: Methodsmentioning

confidence: 99%

“…1] and measurements of standard (resting for an obligate ram-ventilator) MR (SMR) in young-of-the-year (YOY) white sharks13, with swim-tunnel respirometry data from closely-related shortfin mako sharks Isurus oxyrinchus (Lamnidae)14 to estimate field routine metabolic rates (RMR), total daily energy expenditure (TDE), and feeding requirements of white sharks at a NZ fur seal colony at the Neptune Islands, South Australia.…”

mentioning

confidence: 99%

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Feeding requirements of white sharks may be higher than originally thought

Semmens

Payne

Huveneers

et al. 2013

Sci Rep

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Quantifying the energy requirements of animals in nature is critical for understanding physiological, behavioural, and ecosystem ecology; however, for difficult-to-study species such as large sharks, prey intake rates are largely unknown. Here, we use metabolic rates derived from swimming speed estimates to suggest that feeding requirements of the world's largest predatory fish, the white shark (Carcharodon carcharias), are several times higher than previously proposed. Further, our estimates of feeding frequency identify a clear benefit in seasonal selection of pinniped colonies - a white shark foraging strategy seen across much of their range.

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Section: Discussioncontrasting

confidence: 75%

Section: Discussionsupporting

confidence: 52%

Section: Discussionsupporting

confidence: 52%

Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

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Feeding requirements of white sharks may be higher than originally thought

Semmens

Payne

Huveneers

et al. 2013

Sci Rep

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Development of the Lunate‐Shaped Caudal Fin in White Shark Embryos

Tomita

Toda

Miyamoto

et al. 2018

The Anatomical Record

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The lunate-shaped caudal fin in lamnid sharks is a morphological specialization for their thunniform mode of locomotion, but its developmental process during gestation has been poorly investigated. Observations of 21 embryonic specimens of the white shark (Carcharodon carcharias) revealed that their caudal fin morphology drastically changes from strongly heterocercal to lunate-shaped through ontogeny. This morphological change involves (1) rapid elongation of the ventral lobe, (2) increased upward curvature of the vertebra within the caudal fin, and (3) formation of keels at both lateral sides of the caudal fin base. These morphological changes are probably shared among the members of the family Lamnidae and are in contrast with the developmental process of the heterocercal tail in the lamniform Carcharias taurus, in which the caudal fin morphology is almost unchanged through the late gestation period. Anat Rec, 301:1068-1073, 2018. © 2018 Wiley Periodicals, Inc.

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