- Fish Ecology and Management Studies
- Wildlife Ecology and Conservation
- Ichthyology and Marine Biology
- Bird parasitology and diseases
- Aquaculture Nutrition and Growth
- Fish Biology and Ecology Studies
Ultrasonography has been increasingly used in aquaculture breeding programs for non-invasive determination of sex and the gonad maturation stage fish. For first time, this image exam was performed on a mugilid (Lebranche mullet). Nineteen male 12 female fish were submitted to evaluation, which selected because they identified be final stage, previously confirmed through spermiation by abdominal pressure ovarian sampling biopsy (oocytes 626 ± μm), respectively. The ultrasound images obtained...
Enlargement of the thyroid gland is referred to as goiter. In captive fish, goiter may be associated with iodine deficiency in water or diet, exposure goitrogenic factors such a high environmental nitrate concentration treatment ozone. This report describes occurrence marine ornamental fish raised research laboratory, Brazilian basslet