spawner
- noun
- /ˈspɔːnər/
- Specialized
- Biologists monitor the number of spawners in the lake to assess the population health of the fish species.
- age-2 spawners
- abundance of spawners
- adult spawners
Examples
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Rehabilitation of this stock may now depend upon transplanting spawners or releasing hatchery-reared juveniles.
Academic text (1997) -
The healthy female salmon is a vital spawner that ensures the next generation thrives by laying thousands of eggs.
-
For growing juvenile coho, fuel provided by dead spawners comes at a critical time.
Academic text (1997) -
Up to 95% of the stomach contents of a rapidly growing young fish are likely to be spawner-derived.
Academic text (1997) -
Within hours of a spawner's death, its carcass is invaded by invertebrates.
Academic text (1997) -
For Pacific salmon, suitable habitat may severely limit the potential number of spawners and hence the carrying capacity of small streams.
Academic text (1991) -
The fleet encounters a mass of fish that may include several species, spawners from a variety of creeks within the same species, and juveniles.
Academic text (2007) -
Both studies show the dependence of populations upon upstream spawners.
Academic text (1997) -
Like coho, young sockeye overwinter in their home waters and rely on nutrients from adult spawners during a crucial growing period.
Academic text (1997) -
During the mid-October to mid-January spawning season, field technicians counted the number of live adult spawners and fresh carcasses.
Academic text (2001)
Surface Forms
Morphology
Etymology
Spawner comes from the verb spawn, which means 'to produce eggs', plus the agent -er meaning 'one who does'. So a spawner is an animal, often a fish, that lays or releases eggs.