Release males of species known to guard nests during breeding season
Overall effectiveness category Awaiting assessment
Number of studies: 0
Background information and definitions
Fishing can impact marine fish through species removal or habitat damage from fishing gear contacting the seabed. Removal of male fish known to guard nests or protect their young during the breeding season not only kills the adult but may prevent successful spawning or rearing of the young and limit the overall reproductive potential of the population. Examples include black bream Spondyliosoma cantharus (Pinder et al. 2017) and lingcod Ophiodon elongatus (Withler et al. 2004). Releasing male fish of these species during breeding may help reduce fishing pressure and the effects of overexploitation and protect the hatching or rearing of young fish.
Pinder A.C., Velterop R., Cooke S.J. & Britton J.R. (2017) Consequences of catch-and-release angling for black bream Spondyliosoma cantharus, during the parental care period: implications for management. ICES Journal of Marine Science, 74, 254–262.
Withler R.E., King J.R., Marliave J.B., Beaith B., Li S., Supernault K.J. & Miller K.M. (2004) Polygamous mating and high levels of genetic variation in lingcod, Ophiodon elongatus, of the Strait of Georgia, British Columbia. Environmental Biology of Fishes, 69, 345–357.