Marine Bioinvasions in the Southeastern Pacific: Status, Ecology, Economic Impacts, Conservation and Management

Castilla, Juan Carlos; Neill, Paula E.

doi:10.1007/978-3-540-79236-9_26

Cited by 52 publications

(76 citation statements)

References 32 publications

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“…Nonindigenous species (NIS) are extending their southern range of distribution in Latin America (Orensanz et al 2002, Castilla andNeill 2009), and their abundance increased (2000) and sea cucumber (2002)(2003) catches. El Niño and La Niña events were defined based on the Oceanic Niño Index (ONI) estimated by the National Oceanic and Atmospheric Administration (NOAA).…”

Section: Impacts Of Climate Variability In Freshwater and Estuarine Ssfsmentioning

confidence: 99%

Impacts of Climate Variability on Latin American Small-scale Fisheries

Defeo¹,

Castrejón²,

Ortega³

et al. 2013

E&S

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ABSTRACT. Small-scale fisheries (SSFs) are social-ecological systems that play a critical role in terms of food security and poverty alleviation in Latin America. These fisheries are increasingly threatened by anthropogenic and climatic drivers acting at multiple scales. We review the effects of climate variability on Latin American SSFs, and discuss the combined effects of two additional human drivers: globalization of markets and governance. We show drastic long-term and large-scale effects of climate variability, e.g., sea surface temperature anomalies, wind intensity, sea level, and climatic indices, on SSFs. These variables, acting in concert with economic drivers, have exacerbated stock depletion rates in Latin American SSFs. The impact of these drivers varied according to the life cycle and latitudinal distribution of the target species, the characteristics of the oceanographic systems, and the inherent features of the social systems. Our review highlights the urgent need to improve management and governance systems to promote resilience as a way to cope with the increasing uncertainty about the impacts of climate and globalization of markets on Latin American SSFs.RESUMEN. Las pesquerías artesanales son sistemas sociales-ecológicos que desempeñan un papel clave en términos de seguridad alimentaria y la mitigación de la pobreza en América Latina. Estas pesquerías se encuentran cada vez más amenazadas por las presiones antropogénicas y climáticas que actúan a múltiples escalas temporales y espaciales. En este trabajo se ha evaluado la relación entre la variabilidad climática y los recursos pesqueros como una aproximación para comprender los posibles efectos a corto y largo plazo del cambio climático sobre las pesquerías artesanales en América Latina, teniendo en cuenta el efecto combinado de dos factores de estrés humanos adicionales: la globalización de los mercados y la gobernanza. En base al análisis cuantitativo de las extensas bases de datos utilizadas y empleando el enfoque de casos de estudio, este trabajo demuestra que se están produciendo efectos dramáticos a largo plazo y a gran escala de la variabilidad climática, que actuando de manera concertada con factores bioeconómicos, han exacerbado las tasas de depleción de los stocks en América Latina. En particular, hemos identificado dos principales factores del cambio global: (1) la variabilidad del clima a través de las anomalías de temperatura superficial del mar, de la intensidad del viento, del incremento del nivel del mar y del uso de índices climáticos, y (2) el aumento en los precios unitarios en las pesquerías artesanales que se encuentran altamente integradas en el mercado mundial de productos de la pesca. Los resultados también indican que el impacto de estos factores varía según el ciclo de vida y la distribución latitudinal de las especies objetivo, las características intrínsecas de los sistemas oceanográficos y las particularidades inherentes de los sistemas sociales. Nuestros resultados ponen de manifiesto la necesidad urgente de desar...

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Section: Impacts Of Climate Variability In Freshwater and Estuarine Ssfsmentioning

confidence: 99%

Impacts of Climate Variability on Latin American Small-scale Fisheries

Defeo¹,

Castrejón²,

Ortega³

et al. 2013

E&S

View full text Add to dashboard Cite

show abstract

“…At least three reasons may explain such decline: (1) changes in the climate of marine ecosystems; (2) competition with invasive alien mussel species; and (3) shifts in the commercial production of mussels. For instance, its population has severely declined in many areas of South America, as suggested by the observed declines from natural banks in Peru and Patagonia during severe El-Nino Southern Oscillation (ENSO) or following competition with B. rodriguezii [20,27,28]. In Chile, its culture has declined steadily from 1991, being replaced by M. chilensis [29].…”

Section: Population Dynamicsmentioning

confidence: 99%

“…Such effect might be irreversible since we now know that biodiversity helps protect ecosystems from extreme conditions. This could be particularly important at sites with a rich diversity, such as the Wellington Harbour, where the endemic ribbed mussel A. maoriana and Perna canaliculus, together with M. galloprovincialis, dominate the intertidal zone in terms of their cover and biomass [57], or in Southern Chile, where rocky intertidal are dominated by Perumytilus purpuratus, Semimytilus algosus, M. edulis, M. chilensis, Choromytilus chorus, Brachidontes granulata, and Aulacomya ater [28]. It is also plausible that climate change will impact the ability of mussels to escape the effects of natural control agents such as parasites.…”

Section: Impacts Of Climate Change and Pollution On Mixed Mussel Bedsmentioning

confidence: 99%

Biomonitoring Climate Change and Pollution in Marine Ecosystems: A Review onAulacomya ater

Caza

Cledón

St‐Pierre

2016

Journal of Marine Biology

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The sedentarism and wide global distribution of the blue musselMytilus edulishave made it a useful bioindicator to assess changes in the health status of the marine ecosystem in response to pollution and other environmental stresses. Effective biomonitoring of an ecosystem requires, however, that multiple biomarkers be used to obtain an accurate measure of the cumulative effects of different sources of environmental stress. Here, we provide a first integrated review of the biological, economical, and geographical characteristics of another species of mussels, the ribbed musselAulacomya ater. We discuss the use ofAulacomya ateras a complementary biomonitor to the blue mussel to assess the impact of pollutants and climate change. Recent findings have indeed shown thatMytilus edulisandAulacomya aterhave distinctive anatomy and physiology and respond differently to environmental stress. Monitoring of mixed beds containing blue and ribbed mussels may thus represent a unique opportunity to study the effect of environmental stress on the biodiversity of marine ecosystems, most notably in the Southern hemisphere, which is particularly sensitive to climate change and where both species often cohabitate in the same intertidal zones.

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“…Toro et al (2004) suggested that this humanmediated dispersal may have affected the levels of genetic variation in several northern stocks. In addition, the exotic mussel Mytilus galloprovincialis has also been reported in Southern Chile, but it seems to be confined to mussel aquaculture facilities, and there are no naturally established populations in the wild Castilla and Neill 2009).…”

Section: Management and Conservation Issuesmentioning

confidence: 99%

“…Marine coastal ecosystems in South America are experiencing increasing anthropogenic impacts, such as habitat transformation, fragmentation or destruction, introduction or extinction of organisms, resource depletion and food-web modifications (Castilla 1999;Castilla and Neill 2009). In these systems, the loss of ecosystem engineers may be especially critical, because they increase the structural complexity of the habitat, enhance local biomass and biodiversity, and control critical processes (e.g., Coleman and Williams 2002).…”

Section: Introductionmentioning

confidence: 99%

Linking fisheries management and conservation in bioengineering species: the case of South American mussels (Mytilidae)

Carranza

Defeo

Beck

et al. 2009

Rev Fish Biol Fisheries

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We examined a complete list of South American mussels (Mytilidae) to identify species with current or potential needs for management and conservation actions. Based on ecological/ecosystem (aggregations, beds or banks affecting ecosystem functioning) and socio-economic (artisanal fisheries or aquaculture systems) attributes species with high relevance were identified. At least 14 species exhibited large ecosystem level effects at local scales. Further, most of them also sustain important fisheries: nearly one/third of these fisheries showed characteristics that may contribute to their lack of sustainability and overexploitation, while half are either in the initial exploitation phase or in the stabilization of extraction and institutionalization phase. Invading species are modifying the structure of mussel habitats. Allocation of spatially explicit management tools, notably Territorial User Rights in Fisheries and Marine Reserves, together with comanagement initiatives, are suggested as relevant tools to fulfill management and conservation objectives for these key bioengineering species.

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Marine Bioinvasions in the Southeastern Pacific: Status, Ecology, Economic Impacts, Conservation and Management

Cited by 52 publications

References 32 publications

Impacts of Climate Variability on Latin American Small-scale Fisheries

Impacts of Climate Variability on Latin American Small-scale Fisheries

Biomonitoring Climate Change and Pollution in Marine Ecosystems: A Review onAulacomya ater

Linking fisheries management and conservation in bioengineering species: the case of South American mussels (Mytilidae)

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