Conceptual Issues Relevant to Marine Harvest Refuges: Examples from Temperate Reef Fishes
- 1 September 1993
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Fisheries and Aquatic Sciences
- Vol. 50 (9), 2019-2028
- https://doi.org/10.1139/f93-226
Abstract
The size of a refuge needed to sustain a fishery depends on the harvest and on the rate at which both refuge and harvested populations supply new recruits to the fishery. Recruitment rates are determined by larval production, and both intrinsic (e.g., reproductive mode, larval behavior) and extrinsic (e.g., predation, resource availability, currents) factors that influence the geographic range over which a refuge can effectively supply recruits. The size, number, and distribution of refuges depend on patterns of larval replenishment. Since resource requirements of fish often change with ontogeny and reproductive condition, refuges may need to include a wide variety of habitats. Larval production by refuges may be enhanced by multispecies management that provides protection for or allows harvesting of nontarget species. Additionally, protection may be needed for resources located outside refuges that enhance recruitment to harvested populations. Because improperly designed refuges may endanger a fishery by providing a false sense of protection, determining the effectiveness of a refuge is of utmost importance. Evaluation criteria should include the ability of a refuge to maintain high larval production of target species and to contribute to replenishment of harvested populations at a level sufficient to sustain a predetermined harvesting rate.Keywords
This publication has 54 references indexed in Scilit:
- Population Responses of Surfperch Released from CompetitionEcology, 1990
- A review of methods for labeling and tracking marine invertebrate larvaeOphelia, 1990
- A direct test of the effects of protective management on abundance and yield of tropical marine resourcesICES Journal of Marine Science, 1990
- THE CONTRIBUTION OF POPULATION AND COMMUNITY BIOLOGY TO CONSERVATION SCIENCEAnnual Review of Ecology and Systematics, 1988
- DNA-Level Polymorphism as a Tool in Fisheries ScienceCanadian Journal of Fisheries and Aquatic Sciences, 1988
- Latitudinal variation in size structure of the west coast purple sea urchin: A correlation with headlands1Limnology and Oceanography, 1988
- Large scale pattern of recruitment by the labrid, Semicossyphus pulcher: Causes and implicationsJournal of Marine Research, 1985
- Demographic Theory for an Open Marine Population with Space‐Limited RecruitmentEcology, 1985
- Drift-tube study of the dispersal potential of green abalone (Haliotis fulgens) larvae in the southern California Bight: implications for recovery of depleted populationsMarine Ecology Progress Series, 1985
- Effects of fish grazing and damselfish territoriality on coral reef algae. I. Algal community structureMarine Ecology Progress Series, 1983