Table 1.
Percentage occurrence of dichotomous internal and external clinical signs of barotrauma and impacts to gonads observed for 90 female (mean TL ± SD of 48.92 ± 13.10 cm) and 90 male (mean TL ± SD of 48.71 ± 11.74 cm) Chrysophrys auratus (and both sexes combined) angled from 8.0-63.7 m off New South Wales during four months from 8 June 2011.
Fig 1.
Internal view of the (A) coelomic cavity and (B) gonad of a male Chrysophrys auratus (38.5 cm TL) that was angled from 32.5 m and had a ruptured swim bladder (RS—1.3 cm) and posterior gonad haemorrhaging (GH).
The location of the gonad haemorrhage was typical across all fish with this clinical sign. This fish also had a prolapsed cloaca, organ displacement and liver, kidney and coelomic cavity haemorrhages.
Table 2.
Significance of log odds from parsimonious logistic models (with Akaike’s Information Criterion−AIC) assessing the importance of various fixed effects in explaining variability among the occurrence of clinical signs of barotrauma (and the total number) and gonad haemorrhaging in Chrysophrys auratus angled from 8.0-63.7 m off New South Wales during four months from 8 June 2011.
Fig 2.
Log odds (± SE; standardized to mean depth) from logistic models across five reproductive stages of Chrysophrys auratus for (A) the total number of clinical signs of barotrauma, (B) prolapsed cloaca, (C) gastric herniation, (D) ruptured swim bladder, (E) liver haemorrhaging, (F) coelomic cavity haemorrhaging, (G) organ torsion and (H) gonad haemorrhaging.
The significance of the log odds is designated by either black (p<0.05) or white (p>0.05) circles, while the dissimilar letters represent differences detected in false-discovery-rate pairwise comparisons (p<0.05).