Building an expert judgment-based model of mangrove fisheries

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Author(s)
Hutchison, James
Philipp, David P
Claussen, Julie E
Aburto-Oropeza, Octavio
Carrasquilla-Henao, Mauricio
Castellanos-Galindo, Gustavo A
Costa, Matthew T
Daneshgar, Pedram D
Hartmann, Hans J
Juanes, Francis
Khan, Muhammed Naeem
Knowles, Lindy
Knudsen, Eric
Lee, Shing Yip
Murchie, Karen J
Tiedemann, John
Ermgassen, Philine Zu
Spalding, Mark
Griffith University Author(s)
Year published
2015
Metadata
Show full item recordAbstract
Mangroves are critically important habitats for fisheries, both
for their resident fish, crustacean, and mollusk populations and as nursery
grounds for the target species of offshore fisheries. However, the spatial variation
in the benefits provided by mangroves to fisheries is poorly understood.
Based on expert knowledge of mangrove ecology and fisheries biology, we developed
a preliminary model of the spatial distribution of benefits to fisheries
from mangroves. The preliminary model covers the environmental factors that
determine the amount of fish, crustaceans, mollusks, and other fishery target
species produced by ...
View more >Mangroves are critically important habitats for fisheries, both for their resident fish, crustacean, and mollusk populations and as nursery grounds for the target species of offshore fisheries. However, the spatial variation in the benefits provided by mangroves to fisheries is poorly understood. Based on expert knowledge of mangrove ecology and fisheries biology, we developed a preliminary model of the spatial distribution of benefits to fisheries from mangroves. The preliminary model covers the environmental factors that determine the amount of fish, crustaceans, mollusks, and other fishery target species produced by mangrove areas (termed “potential fish production”) and the socioeconomic variables that determine the level of fishing in any given location. The combination of these two outputs gives the predicted catch. Potential fish production is predicted to be highest where there is high freshwater and nutrient input to mangroves, such as in large estuaries. At large seascape scales, total mangrove area is also an important driver. Fishing effort is highest close to human populations, which provide both the fishers and the markets for their catch. The model is qualitative and has not been parameterized with field data and, as such, should only be considered as a first step towards understanding the spatial variation in the benefits that mangroves provide to fisheries.
View less >
View more >Mangroves are critically important habitats for fisheries, both for their resident fish, crustacean, and mollusk populations and as nursery grounds for the target species of offshore fisheries. However, the spatial variation in the benefits provided by mangroves to fisheries is poorly understood. Based on expert knowledge of mangrove ecology and fisheries biology, we developed a preliminary model of the spatial distribution of benefits to fisheries from mangroves. The preliminary model covers the environmental factors that determine the amount of fish, crustaceans, mollusks, and other fishery target species produced by mangrove areas (termed “potential fish production”) and the socioeconomic variables that determine the level of fishing in any given location. The combination of these two outputs gives the predicted catch. Potential fish production is predicted to be highest where there is high freshwater and nutrient input to mangroves, such as in large estuaries. At large seascape scales, total mangrove area is also an important driver. Fishing effort is highest close to human populations, which provide both the fishers and the markets for their catch. The model is qualitative and has not been parameterized with field data and, as such, should only be considered as a first step towards understanding the spatial variation in the benefits that mangroves provide to fisheries.
View less >
Book Title
Mangroves as Fish Habitat
Copyright Statement
© 2015 American Fisheries Society. The attached file is reproduced here in accordance with the copyright policy of the publisher. Please refer to the publisher’s website for further information.
Subject
Marine and estuarine ecology (incl. marine ichthyology)