Simulating Ucides cordatus population recovery on fished grounds. In: Mangrove dynamics and management in North Brazil. Ecological Studies 211
C. Piou
U. Berger
K. Diele
Abstract
The recovery of fishing grounds of Ucides cordatus populations in the Caeté Peninsula is a recurrent process due to individual movements. However, these movements could not be observed in the field. A pattern-oriented modeling approach was used to infer on U. cordatus individual behaviors from population-level observations. An individual-based model was specifically developed for this purpose. The model results informed that the reason of decision of movement of individual crabs was probably a local density-dependent process. Also, fitting the model to field spatial distribution patterns, this process could be seen as an intra-specific competition for nearby resources. It was hypothesized that the spatially structured organization of U. cordatus populations act as hierarchical buffer systems with nonfished high-density areas filling back the fishing grounds at different speeds. Density-induced movement may therefore be an important aspect for the sustainability of the U. cordatus fishery.
Piou C., Berger U. and Diele K. (2010) Simulating Ucides cordatus population recovery on fished grounds. In: Saint-Paul U. & Schneider H. (eds.). Mangrove dynamics and management in North Brazil. Ecological Studies 211 (pp. 299-303). 10.1007/978-3-642-13457-9_20
@inbook{Piou2010,
Title = {Simulating Ucides cordatus population recovery on fished grounds},
Author = {Piou, C. and Berger, U. and Diele, K.},
Editor = {Saint-Paul, U. and Schneider, H.},
Journal = {Ecological studies},
Year = {2010},
Pages = {299-303},
Doi = {10.1007/978-3-642-13457-9_20},
Isbn = {978-3-642-13456-2},
Booktitle = {Mangrove dynamics and management in North Brazil. Ecological Studies 211},
Abstract = {The recovery of fishing grounds of Ucides cordatus populations in the Caeté Peninsula is a recurrent process due to individual movements. However, these movements could not be observed in the field. A pattern-oriented modeling approach was used to infer on U. cordatus individual behaviors from population-level observations. An individual-based model was specifically developed for this purpose. The model results informed that the reason of decision of movement of individual crabs was probably a local density-dependent process. Also, fitting the model to field spatial distribution patterns, this process could be seen as an intra-specific competition for nearby resources. It was hypothesized that the spatially structured organization of U. cordatus populations act as hierarchical buffer systems with nonfished high-density areas filling back the fishing grounds at different speeds. Density-induced movement may therefore be an important aspect for the sustainability of the U. cordatus fishery.},
}
TY - CHAP
AU - Piou, C.
AU - Berger, U.
AU - Diele, K.
ED - Saint-Paul, Ulrich
ED - Schneider, Horacio
TI - Simulating Ucides cordatus population recovery on fished grounds
T2 - Ecological studies
PY - 2010
SP - 299-303
DO - 10.1007/978-3-642-13457-9_20
SN - 978-3-642-13456-2
BT - Mangrove dynamics and management in North Brazil. Ecological Studies 211
AB - The recovery of fishing grounds of Ucides cordatus populations in the Caeté Peninsula is a recurrent process due to individual movements. However, these movements could not be observed in the field. A pattern-oriented modeling approach was used to infer on U. cordatus individual behaviors from population-level observations. An individual-based model was specifically developed for this purpose. The model results informed that the reason of decision of movement of individual crabs was probably a local density-dependent process. Also, fitting the model to field spatial distribution patterns, this process could be seen as an intra-specific competition for nearby resources. It was hypothesized that the spatially structured organization of U. cordatus populations act as hierarchical buffer systems with nonfished high-density areas filling back the fishing grounds at different speeds. Density-induced movement may therefore be an important aspect for the sustainability of the U. cordatus fishery.
ER -
Details
Date01.01.2010
Pages299-303
Book TitleMangrove dynamics and management in North Brazil. Ecological Studies 211