Approaching the Ecological Role of the Squat Lobster (<i>Munida gregaria</i>) and the Fuegian Sprat (<i>Sprattus fuegensis</i>) in the Francisco Coloane Marine Area (Magellan Strait, Chile) Using a Pelagic Food Web Model

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dc.contributor.authorHaro, Daniela
dc.contributor.authorNeira, Sergio
dc.contributor.authorCarlos Hernandez-Padilla, Juan
dc.contributor.authorArreguin-Sanchez, Francisco
dc.contributor.authorSabat, Pablo
dc.contributor.authorVargas, Cristian
dc.date.accessioned2025-01-20T20:19:22Z
dc.date.available2025-01-20T20:19:22Z
dc.date.issued2023
dc.description.abstractSimple Summary We investigated the ecological role of the squat lobster (Munida gregaria) and the Fuegian sprat (Sprattus fuegensis) in the food web of the Francisco Coloane Marine Area in the Magellan Strait, Chile. We analyzed the ecosystem impacts of biomass changes in the squat lobster and Fuegian sprat. Food web indicators and simulations were estimated using the Ecopath with Ecosim software. Both species were located in the second trophic level. The squat lobster was preyed upon by 12 functional groups, which highlighted its role as an important prey in the ecosystem and its positive impacts on predators such as red cod, whales, and penguins. As prey, the Fuegian sprat presented a direct interaction with 10 functional groups, which exerted positive impacts on predators such as penguins, seabirds and whales. In summary, the Francisco Coloane Area is an immature ecosystem with productivity and energy flows values within those reported for productive ecosystems; the role of the squat lobster seems to be related to the structure of the food web, while the Fuegian sprat plays a role in the energy transfer to top predators. Although the study area is currently a Marine Protected Area, monitoring squat lobster and Fuegian sprat populations might ensure the conservation of this ecosystem. The structure and functioning of the food web of the Francisco Coloane Marine Area in the Magellan Strait, Chile, was quantified, with an emphasis on identifying the ecological role of the squat lobster (Munida gregaria) and the Fuegian sprat (Sprattus fuegensis). Food web indicators, the trophic level, and centrality indices were estimated using Ecopath with Ecosim. Dynamic simulations were carried out to evaluate the ecosystem impacts of biomass changes in squat lobster and Fuegian sprat. The model calculated a total ecosystem biomass of 71.7 t km(-2) and a total primary production of 2450.9 t km(-2) year(-1). Squat lobster and Fuegian sprat were located in specific trophic levels of 2.3 and 2.7, respectively. Squat lobster reduction produced a decrease in the biomass of red cod (42-56%) and humpback whales (25-28%) and Fuegian sprat reduction a decrease in penguins (15-37%) and seabirds (11-34%). The Francisco Coloane Area is an immature ecosystem with productivity and energy flows values within those reported for productive ecosystems; the role of the squat lobster seems to be related to the structure of the food web, and the role of the Fuegian sprat seems to be related to the functioning of the ecosystem and to the energy transfer to top predators.
dc.fuente.origenWOS
dc.identifier.doi10.3390/ani13010003
dc.identifier.issn2076-2615
dc.identifier.urihttps://doi.org/10.3390/ani13010003
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/92519
dc.identifier.wosidWOS:000909716800001
dc.issue.numero1
dc.language.isoen
dc.revistaAnimals
dc.rightsacceso restringido
dc.subjecttrophic role
dc.subjectecosystem model
dc.subjectstructure and functioning
dc.subjectsquat lobster
dc.subjectFuegian sprat
dc.subjectMagellan Strait
dc.subject.ods12 Responsible Consumption and Production
dc.subject.ods07 Affordable and Clean Energy
dc.subject.ods15 Life on Land
dc.subject.ods11 Sustainable Cities and Communities
dc.subject.ods08 Decent Work and Economic Growth
dc.subject.ods06 Clean Water and Sanitation
dc.subject.ods14 Life Below Water
dc.subject.ods13 Climate Action
dc.subject.ods09 Industry, Innovation and Infrastructure
dc.subject.odspa12 Producción y consumo responsable
dc.subject.odspa07 Energía asequible y no contaminante
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.subject.odspa11 Ciudades y comunidades sostenibles
dc.subject.odspa08 Trabajo decente y crecimiento económico
dc.subject.odspa06 Agua limpia y saneamiento
dc.subject.odspa14 Vida submarina
dc.subject.odspa13 Acción por el clima
dc.subject.odspa09 Industria, innovación e infraestructura
dc.titleApproaching the Ecological Role of the Squat Lobster (<i>Munida gregaria</i>) and the Fuegian Sprat (<i>Sprattus fuegensis</i>) in the Francisco Coloane Marine Area (Magellan Strait, Chile) Using a Pelagic Food Web Model
dc.typeartículo
dc.volumen13
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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