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. 2020 Oct 7;15(10):e0238986. doi: 10.1371/journal.pone.0238986

Table 3. Uterine capacity from ovarian observations in other Squaliforms.

Species Family Nfemales UOmax % References
Centrophorus squamosus Δ Centrophoridae 467 10/15 66.7 [35, 36]
Centrophorus granulosus Centrophoridae 156 6/10 60.0 [36]
Centrophorus harrisoni* Centrophoridae 86 2/2 100 [29]
Centrophorus moluccensis* Centrophoridae 68 2/2 100 [29]
Centrophorus sp. 1 Centrophoridae 100 1/1 100 [29]
Centrophorus sp. 2* Centrophoridae 51 2/3 66.7 [32]
Deania profundorum Centrophoridae 351 11/14 78.6 [37]
Dalatias licha* Dalatiidae 67 14/18 77.8 [39]
Echinorhinus brucus Echinorhinidae 256 36/38 94.7 [42]
Oxynotus bruniensis * Oxynotidae 45 8/17 47.1 [46]
Oxynotus centrina *Δ Oxynotidae 20 15/22 68.1 [43, 44]
Centroscyllium fabricii Etmopteridae 1476 35/47 74.4 [27]
Etmopterus granulosus Etmopteridae 492 15/30 50.0 [47]
Etmopterus spinax Etmopteridae 485 16/21 76.1 [49]
Centroscymnus coelolepis Somniosidae 871 25/30 83.3 [52]
Centroscymnus owstoni Somniosidae 316 28/28 100 [51]
Somniosus rostratus* Somniosidae 29 21/23 91.3 Guallart unpublished data
Squalus acanthias Squalidae 491 15/18 83.3 [57]
Squalus megalops Squalidae 4180 4/4 100 [64]
Squalus suckleyi Squalidae 360 16/13 100 [55]

* Sample sizes low compared to other studies (N>100).

Δ Ratio calculated on numbers from different studies but from same region.

○ Uterine fecundity is higher than ovarian fecundity.

Maximum number of fetuses over maximum number of ripe ova, i.e. UOmax-ratio (expressed as %). This ratio reflects the species’ maximum capacity uterine fecundity (U) based on ovarian observations (O).