A multispecies virtual population analysis of the eastern Bering Sea

Livingston, Patricia A.; Jurado-Molina, Jesús

doi:10.1006/jmsc.1999.0524

Cited by 64 publications

(52 citation statements)

References 9 publications

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“…Since the mid-1980s in the Gulf of Alaska, pollock recruitment has been more strongly controlled by flatfish and cod predation on juveniles than it is by environmental effects on larvae (Bailey, 2000). Increases in cod and flatfish, in particular arrowtooth flounder, may also have a negative effect, via predation, on the survival of juvenile pollock in the Bering Sea, as do cannibalistic adult pollock (Livingston and Lang, 1996;Livingston and Methot, 1998;Lang et al, 2000;Livingston and Jurado-Molina, 2000).…”

Section: Mechanisms For Change In Fish Populationsmentioning

confidence: 99%

Climate change and control of the southeastern Bering Sea pelagic ecosystem

Hunt

Stabeno

Walters

et al. 2002

Deep Sea Research Part II: Topical Studies in Oceanography

501

385

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We propose a new hypothesis, the Oscillating Control Hypothesis (OCH), which predicts that pelagic ecosystem function in the southeastern Bering Sea will alternate between primarily bottom-up control in cold regimes and primarily top-down control in warm regimes. The timing of spring primary production is determined predominately by the timing of ice retreat. Late ice retreat (late March or later) leads to an early, ice-associated bloom in cold water (e.g., 1995, 1997, 1999), whereas no ice, or early ice retreat before mid-March, leads to an open-water bloom in May or June in warm water (e.g., 1996, 1998, 2000). Zooplankton populations are not closely coupled to the spring bloom, but are sensitive to water temperature. In years when the spring bloom occurs in cold water, low temperatures limit the production of zooplankton, the survival of larval/juvenile fish, and their recruitment into the populations of species of large piscivorous fish, such as walleye pollock (Theragra chalcogramma), Pacific cod (Gadus macrocephalus) and arrowtooth flounder (Atheresthes stomias). When continued over decadal scales, this will lead to bottom-up limitation and a decreased biomass of piscivorous fish. Alternatively, in periods when the bloom occurs in warm water, zooplankton populations should grow rapidly, providing plentiful prey for larval and juvenile fish. Abundant zooplankton will support strong recruitment of fish and will lead to abundant predatory fish that control forage fish, including, in the case of pollock, their own juveniles. Piscivorous marine birds and pinnipeds may achieve higher production of young and survival in cold regimes, when there is less competition from large piscivorous fish for coldwater forage fish such as capelin (Mallotus villosus). Piscivorous seabirds and pinnipeds also may be expected to have high productivity in periods of transition from cold regimes to warm regimes, when young of large predatory species of fish are numerous enough to provide forage. The OCH predicts that the ability of large predatory fish populations to sustain fishing pressure will vary between warm and cold regimes.The OCH points to the importance of the timing of ice retreat and water temperatures during the spring bloom for the productivity of zooplankton, and the degree and direction of coupling between zooplankton and forage fish. in the biomass of large piscivorous fish and a concurrent decline in the biomass of forage fish, including age-1 walleye pollock, particularly over the southern portion of the shelf. Populations of northern fur seals (Callorhinus ursinus) and seabirds such as kittiwakes (Rissa spp.) at the Pribilof Islands have declined, most probably in response to a diminished prey base. The available evidence suggests that these changes are unlikely the result of a decrease in total annual new primary production, though the possibility of reduced post-bloom production during summer remains. An ecosystem approach to management of the Bering Sea and its fisheries is of great importance if all o...

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Section: Mechanisms For Change In Fish Populationsmentioning

confidence: 99%

Climate change and control of the southeastern Bering Sea pelagic ecosystem

Hunt

Stabeno

Walters

et al. 2002

Deep Sea Research Part II: Topical Studies in Oceanography

501

385

View full text Add to dashboard Cite

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“…In recent decades, the global agreement that marine populations are not isolated entities in their ecosystems but instead are part of complex webs of interactions with other species and the environment (Hollowed et al 2000;Livingston and Jurado-Molina 2000;Kempf et al 2006) has increased the interest in developing an ecosystem approach to fisheries management.…”

mentioning

confidence: 99%

“…In particular, multispecies virtual population analysis (MSVPA) and multispecies forecasting (MSFOR) analysis are two age-structured modeling approaches that include biological interactions (i.e., predation) and were developed by the International Council for the Exploration of the Sea (ICES) Multispecies Assessment Working Group. These two types of model have been used to provide complementary information in stock assessment and management of important fisheries from the North Sea (ICES 1989;Sparre 1991), the Baltic Sea (Sparholt 1991), Georges Bank (Tsou and Collie 2001), and the Bering Sea (Livingston and Jurado-Molina 2000;Livingston 2002a, 2002b). Multispecies virtual population analysis and MSFOR models have provided complementary information for the management of fisheries resources; for example, they have been useful in assessing the indirect effects of fishing (Jurado-Molina and Livingston 2002a), food consumption by predators and the associated implications for prey species recruitment (Livingston and Jurado-Molina 2000), and the relative importance of predation and climate in affecting species dynamics (JuradoMolina and Livingston 2002b).…”

mentioning

confidence: 99%

“…These two types of model have been used to provide complementary information in stock assessment and management of important fisheries from the North Sea (ICES 1989;Sparre 1991), the Baltic Sea (Sparholt 1991), Georges Bank (Tsou and Collie 2001), and the Bering Sea (Livingston and Jurado-Molina 2000;Livingston 2002a, 2002b). Multispecies virtual population analysis and MSFOR models have provided complementary information for the management of fisheries resources; for example, they have been useful in assessing the indirect effects of fishing (Jurado-Molina and Livingston 2002a), food consumption by predators and the associated implications for prey species recruitment (Livingston and Jurado-Molina 2000), and the relative importance of predation and climate in affecting species dynamics (JuradoMolina and Livingston 2002b). Multispecies models that employ statistical estimation of parameters have been used for the Bering Sea (Jurado-Molina et al 2005); the Aleutian Shelf, Alaska (Kinzey and Punt 2009); and other regions.…”

mentioning

confidence: 99%

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A Multispecies Virtual Population Analysis for the Southern Chilean Demersal Fishery

et al. 2016

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A multispecies virtual population analysis (MSVPA) model for the southern Chilean demersal fishery was developed. Species included the Southern Hake Merluccius australis, Pink Cusk‐eel Genypterus blacodes (hereafter, “Kingklip”), Southern Blue Whiting (SBW) Micromesistius australis, and Patagonian Grenadier (also known as Argentine Straptail) Macruronus magellanicus (hereafter, “Hoki”). Due to a lack of stomach content data, we constructed suitability coefficients based on predator–prey size ratios. Terminal fishing mortality (Fterm) was estimated by fitting a cohort analysis model to estimates of abundance from single‐species models developed by the Chilean Instituto de Fomento Pesquero (IFOP; Institute for Fishing Development). Values of Fterm were used as input data in the MSVPA, driving the dynamics of the species and producing adult abundance estimates that were similar to IFOP estimates. Comparison of MSVPA and IFOP estimates suggested consistency in adult abundance and total abundance estimates for SBW. Differences were identified for adult Hoki abundance estimates. Differences in recruitment estimates were small for SBW, whereas greater differences were found for Hoki. The MSVPA revealed high estimates of predation mortality for Hoki, while predation played a minor role in SBW population dynamics. Cannibalism and predation by Southern Hake were the main components of predation mortality for age‐0 Hoki; Southern Hake were the most important source of predation for age‐1 Hoki. Sensitivity analysis suggested that Hoki response variables were sensitive to 10% perturbations in suitability coefficients, while SBW response variables were not. This study is a first step toward building a multispecies framework that could provide complementary information for the sustainable management of fishing resources in southern Chile. Received October 11, 2015; accepted March 5, 2016

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“…Una de las formas de análisis que permiten tal reconciliación se basa en los índices de selectividad de presas por tamaño, los cuales son utilizados para determinar matrices de coeficientes de preferencia de presas por edad (Rice et al, 1991;Tsou & Collie, 2001). En este contexto, el análisis de la selectividad de presas por tamaño permite establecer las bases necesarias para modelar las interacciones tróficas y cuantificar la mortalidad por predación que ejercen los predadores, ya sea en un contexto multiespecífico (Wipple et al, 2000, Livingston & Jurado-Molina, 2000, o bien monoespecífico considerando explíci-tamente a la predación (Hollowed et al, 2000).…”

unclassified

Selectividad por tamaño de las presas en merluza común (Merluccius gayi gayi), zona centro-sur de Chile (1992-1997)

Cubillos

Alarcón

Arancibia³

2007

Investig. mar.

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Selectividad por tamaño en merluza común (Merluccius gayi gayi)Ursin y los coeficientes de selectividad por tamaño a la edad se calcularon para la propia merluza común (canibalismo), los galatheidos langostino colorado (Pleuroncodes monodon) y langostino amarillo (Cervimunida johni), y los clupeiformes sardina común (Strangomera bentincki) y anchoveta (Engraulis ringens), y otras presas en conjunto. Se confirma que a medida que la merluza crece tiende a consumir presas de mayor tamaño, y que la merluza de más de 2 años tiene preferencia por la fracción juvenil de 0 a 4 años (canibalismo), por anchovetas de 0 y 1 año de edad, y langostinos de grupo de 0 y 1 año de edad. La merluza de más de 4 años presenta igual preferencia por langostino colorado y amarillo de más de 2 años de edad. Otras presas tienen altos coeficientes de selección por los grupos de edad 0 a 4 del predador, las que están representadas principalmente por zooplancton (eufáusidos) y mictófidos. Los coeficientes de selección aquí calculados constituyen una base cuantitativa para avanzar en modelos de evaluación multiespecífico que permitan cuantificar el impacto trófico de merluza común sobre especies de importancia comercial del sistema bento-demersal y pelágico de la zona centro-sur de Chile.Palabras clave: contenido estomacal, predación, coeficientes de conveniencia, índice de selectividad de tamaño, merluza común, Chile central. Size-based prey selectivity in South Pacific hake (Merluccius gayi gayi), central-southern Chile (1992-1997)ABSTRACT. Size-based prey selectivity in Chilean hake (Merluccius gayi gayi) is analyzed using a data base of stomach contents collected from 1992 to 1997. The Ursin prey selectivity index and the size-based selectivity coefficients were calculated by age for the Chilean hake (cannibalism); the galatheids squat lobster (Pleuroncodes monodon) and yellow squat lobster (Cervimunida johni); the clupeiforms common sardine (Strangomera bentincki) and anchovy (Engraulis ringens); and other combined prey. Hake are confirmed to consume larger prey as they grow and individuals over two years of age show a preference for the young fraction of the hake population (0-4 years; cannibalism), anchovy (0-1 year), and lobster (0-1 year). Hake over four years of age also prefer squat lobster and yellow squat lobster (> 2 years). High selection coefficients are found for the remaining prey, mostly zooplankton (euphausids) and myctophids, with predators from 0 to 4 years. The selection coefficients calculated herein constitute a quantitative basis for improving multispecific evaluation models that allow the quantification of the trophic impact of Chilean hake on commercially important species of the benthic-demersal and pelagic system off central-southern Chile.

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A multispecies virtual population analysis of the eastern Bering Sea

Cited by 64 publications

References 9 publications

Climate change and control of the southeastern Bering Sea pelagic ecosystem

Climate change and control of the southeastern Bering Sea pelagic ecosystem

A Multispecies Virtual Population Analysis for the Southern Chilean Demersal Fishery

Selectividad por tamaño de las presas en merluza común (Merluccius gayi gayi), zona centro-sur de Chile (1992-1997)

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