Table 1. Infection parameters (P: prevalence; Mi: mean intensity), parasite stage “S” (A, adult; L, larva), and known intermediate/paratenic and definitive hosts of the parasite taxa found in 100 Chionodraco hamatus from Terra Nova Bay (Ross Sea), Antarctica.
| Species | P % | Mi | S | Site in host | Known intermediate/paratenic hosts | Known definitive host |
| Copepoda | ||||||
| Eubrachiella gaini | 28 | 2.9 (2.2–3.5) [1]–[6] | A | Gill, skin | Absent | Fish |
| Isopoda | ||||||
| Gnathia calva | 9 | 1.6 (1–2.3) [1]–[3] | L | Gill, skin | Fish | Adult stage in sponges, tunicates and tubes of serpulid worms |
| Piscicolidae | ||||||
| Nototheniobdella sawgeri | 33 | 4.6 (4.0–5.3) [1]–[8] | A | Gill, skin, mouth | Absent | Fish |
| Trulliobdella capitis | 8 | 2 (1.3–2.6) [1]–[3] | A | Skin | Absent | Fish |
| Cryobdella antarctica | 7 | 2.2 (1.4–3.1) [1]–[4] | A | Gill, skin | Absent | Fish |
| Nematoda | ||||||
| Contracaecum osculatum s.l.* | 100 | 152.2 (98.9–150.0) [14–1031] | L | Liver, gastric wall, body cavity | Crustaceans?, fish | Weddell seal (Leptonychotes weddellii) |
| C. radiatum | 86 | 16.2 (12.8–19.1) [1–57] | L | Crustaceans?, fish | Weddell seal | |
| Ascarophis nototaenia | 22 | 3.9 (2.2–5.6) [1]–[18] | A | Stomach | ? | Fish |
| Digenea | ||||||
| Derogenes johnstoni | 3 | 1.6 (1.1–4.5) [1]–[3] | Derogenes varicus uses gastropods (Natica spp.), crustaceans | Fish | ||
| Elytrophalloides oatesi | 18 | 4.6 (2.2–5.9) [1]–[15] | A | Stomach | ? | Fish |
| Genolinea bowersi | 19 | 1.6 (1.1–2.0) [1]–[4] | A | Stomach | ? | Fish |
| Gonocerca phycidis | 12 | 2.0 (1.0–3.0) [1]–[6] | A | Stomach | ? | Fish |
| Lepidapedon garradi | 3 | 3 (3.5–9.5) [1]–[6] | A | Intestine | ? | Fish |
| Neolebouria terranovensis | 43 | 22.9 (14.9–30.9) [1–86] | A | Intestine | Neolebouria antarctica uses crustaceans (Antarctomysis maxima) | Fish |
| Macvicaria georgiana | 15 | 5.6 (2.8–8.9) [1]–[18] | A | Intestine | ? | Fish |
| Acanthocephala | ||||||
| Corynosoma hamanni | 6 | 20.6 (4.3–33.9) [8]–[36] | L | Body cavity | Isopods (Prostebbingia brevicornis), fish | Weddell seal, leopard seal (Hydrurga leptonyx) |
| C. pseudohamanni | 5 | 27.6 (1.0–56.2) [3–52] | L | Body cavity | Isopods (Cheirimedon femoratus, P. brevicornis), fish | Seals |
| Metacanthocephalus campbelli | 37 | 8.4 (4.5–12.4) [1–61] | A | Intestine | M. johnstoni uses isopods (C. femoratus) | Seals |
| M. rennicki | 14 | 3.71 (1.8–5.6) [1]–[12] | A | Intestine | M. johnstoni uses isopods (C. femoratus) | Seals |
| Cestoda | ||||||
| Diphyllobothrideans | 100 | 300.8 (261.0–340.5) [67–1061] | L | Liver, gastric wall, body cavity | Crustaceans?, fish | Birds, marine mammals |
| Tetraphyllideans** | 100 | 823.0 (682.8–963.3) [37–3427] | L | Rectum | Crustaceans?, fish | Sharks, skates |
Numbers in parentheses represent the 95% confidence interval of each parameter; numbers in square brackets are ranges. Know intermediate/paratenic and definitive hosts in accordance with references detailed in the text [6], [7], [29], [30], [31], [32], [42], [43], [50].
*Contracaecum osculatum s.l. includes the two specie C. osculatum D and C. osculatum E genetically identified.
**Tetraphyllideans include at least 2 morphological forms.