"Fish abundance" refers to the number of fish in a particular area or ecosystem. It is a measurement of how many fish there are in relation to the availability of food and habitat. Full definition
Second, large seasonal changes in fish abundance test eDNA temporal specificity. (journals.plos.org)
The authors took advantage of a two decade long data series of fish abundance from the Maria Island Marine Reserve, collected by Dr Neville Barrett and Professor Graham Edgar since 1992 with support from the Tasmanian Parks and Wildlife Service. (sciencedaily.com)
In a bid to restore lost fish abundance, the Haida Salmon Restoration Corp. (HSRC) undertook to mimic the effects of a volcanic eruption by fertilizing the ocean with iron. (scientificamerican.com)