Table 4 Fecundity and oogenesis in Muusoctopus aegir Golikov, Gudmundsson & Sabirov, sp. nov., M. johnsonianus (Allcock, Strugnell, Ruggiero & Collins, 2006) [26] and M. sibiricus (Løyning, 1930) [62]. Values are minimum – maximum (mean ± SE), where applicable
From: A review of the genus Muusoctopus (Cephalopoda: Octopoda) from Arctic waters
Species/maturity stages and characters | Muusoctopus aegir sp. nov. | Muusoctopus johnsonianus | Muusoctopus sibiricus | |
|---|---|---|---|---|
Fecundity (all stages) | 65–168 (99.5 ± 6.8) | 227–300 (259.0 ± 21.5) | 136 | |
Realized fecundity, % | 10.8–58.1 (44.7 ± 6.2); 39.4–58.1 (50.4 ± 3.0) if outlier is excluded | No data | No data | |
Early Immature (I) | Fecundity | 96 | No data | 136 |
Oocytes | Only pre-vitellogenic, 0.4–0.6 mm | Only pre-vitellogenic, 0.2–0.3 mm | ||
Late immature (II) | Fecundity | 98 and 130 | 250 and 300 | No data |
Oocytes | Only pre-vitellogenic, 0.4–1.6 mm | Only pre-vitellogenic, 0.3–0.6 mm | ||
Early maturing (III) | Fecundity | 112 and 130 | No data | No data |
Oocytes | Pre-vitellogenic oocytes:  ~ 61%; ~ 57% of them 0.4–0.7 mm and  ~ 43% of them 0.9–1.1 mm; Small vitellogenic oocytes:  ~ 2%; 2.2–2.5 mm; Medium vitellogenic oocytes:  ~ 37%; 2.6–4.5 mm | |||
Late maturing (IV) | Fecundity | 78–168 (117.0 ± 19.1) | 227 | No data |
Oocytes | Pre-vitellogenic oocytes: 0–63%; 18–75% of them 0.2–0.5 mm and 25–82% of them 0.6–1.2 mm; Small vitellogenic oocytes: 7–39%; 2.5–5.0 mm; Medium vitellogenic oocytes: 12–34%; 3.0–7.0 mm; Large vitellogenic oocytes: 0.2–44%; 6.0–12.0 mm; 17–24 folds; Resorbing oocytes: 0.6–28%; 0.5–4.8 mm | Small vitellogenic oocytes: 47%; 2.0–5.0 mm; Medium vitellogenic oocytes: 11%; 10.0–13.0 mm; Large vitellogenic oocytes: 42%; 17.0–22.0 mm; 18–20 folds | ||
Pre-mature (V1) | Fecundity | No data | No data | No data |
Oocytes | ||||
Mature (V2) | Fecundity | No data | No data | No data |
Oocytes | Analyzed onboard: only ripe oocytes counted (18) | |||
Pre-spent (V3) | Fecundity | 71 | No data | No data |
Oocytes | Ripe oocytes: 2.8%; 12.5 and 13.0 mm without capsules, 13.0 and 14.0 mm in capsules; Post-ovulatory follicles: 37%; 1.1–4.2 mm; Resorbing oocytes: 61%; 0.5–3.0 mm | |||
Spent (VI) | Fecundity | 65–93 (81.2 ± 4.9) | No data | No data |
Oocytes | Post-ovulatory follicles: 11–58% (without outlier 44–58%); 2.0–5.1 mm; Resorbing oocytes: 42–89% (without outlier 42–56%); 0.2–2.6 mm | |||