Production and Biomass Size Spectra in the Bay of Quinte, A Eutrophic Ecosystem

Minns, Charles K.; Millard, Éric; Cooley, John M.; Johnson, M. G.; Hurley, Donal A.; Nicholls, Kenneth H.; Robinson, G. W.; Owen, G. E.; Crowder, Adèle A.

doi:10.1139/f87-318

Cited by 26 publications

(13 citation statements)

References 12 publications

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“…e. particle-sizeconversion efficiency, E, and the relationship between turnover rate and body size). Models sf this type can provide estimates of potential production for the entire community over various size classes and have been so applied to Lake Ontario (Borgmann 1982(Borgmann , 1985Minns et al 1987),…”

Section: Comprehensive Methodsmentioning

confidence: 99%

A Review of Methods for Prediction of Potential Fish Production with Application to the Great Lakes and Lake Winnipeg

Leach¹,

Dickie²,

Shuter³

et al. 1987

Can. J. Fish. Aquat. Sci.

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Can. J. Fish. Aquat. Sci. M(Suppl. 2 ) : 471485.Methods for estimating fish production in aquatic ecosystems range from simple empirically derived estimators, such as morphoedaphic indices, to complex ecosystem simulation models. As first-order estimators, the former are attractive to managers because they are simple and relatively inexpensive to apply and interpret. Application of the latter group has been limited because many of the data inputs are difficuit and expensive to obtain. Between these extremes are several models, such as the biomasssize spectrum model, that provide useful information for moderate expenditures of time and effort. Existing and new methods are reviewed in the light of production theory and several are applied to Great Lakes and Lake Winnipeg data. Eight empirical models derived from limnological variables were selected from the literature and used to estimate potential fish yield for the Great Lakes and Lake Winnipeg. The models predicted a fairly narrow range of potential yields, but when compared with historic yields, none was consistent for all lakes. The best overall empirically derived estimator of potential yield in the Great Lakes was the morphoedaphic index. Potential fish production estimated from invertebrate production with Borgmann's biomasssize spectrum mode! was considerably greater than historic yields or the yield theorie de la productivite et on applique piusieurs de ces m6thodes B des donn6es recueillies dans \es Grands Lacs et E e lac Winnipeg. On a choisi dans les ouvrages publies huit modeles empiriques tires de variables limnologiques; ils sewent a determiner le rendement potentiel en poissons des Grands Lacs et du lac Winnipeg. Les modeles predisent une gamme assez petite de rendements potentiels; toutefois, une '~oncribution No. 86-03 sf the Ontario Ministry of Natural Resources, Research Section, Fisheries Branch. Box 50, Maple, Ont. LOJ fE0. Can. J. Fish. Aquat. Sci. Downloaded from www.nrcresearchpress.com by Duke University on 10/14/12 For personal use only.Since Ryder's (1965) landmark paper there has k e n extensive Base of ME1 in addition to other physical, chemical, and biological indices. In general, such indices are designed for simplicity of application. They treat yield of fish as a "shadow" statistic representing fish production. This embodies the implicit assumption that the yield for a given lake represents the same fraction of total production as the yields for the other lakes with which it is to be compared. Where reliable and comparable

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Section: Comprehensive Methodsmentioning

confidence: 99%

A Review of Methods for Prediction of Potential Fish Production with Application to the Great Lakes and Lake Winnipeg

Leach¹,

Dickie²,

Shuter³

et al. 1987

Can. J. Fish. Aquat. Sci.

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“…This is an illustration of the point made by Patten and Odum (1981) that organisms occupying positions near the apex of the Eltonian Pyramid of numbers can influence community structure and function to a degree disproportionate with their relative biomass, or contribution to community metabolism. This accounts in part for the attraction of contemporary workers to particle size theory (Spmles and Munawar 1986;Borgmann 1987;Minns et al 1987). A related approach was suggested by Patten (1985) who noted that living organisms store energy in direct proportion to their own biomasses and Margalef (1985) who noted that this storage (information content) relates inversely to turnover, i.e.…”

Section: Some Succession Theorymentioning

confidence: 97%

“…Resented tentatively at the SCOL symposium nearly two decades ago in connection with the "oligotrophicatisn7' process, this understanding has clearly been extended to nearshore regions within the Great Lakes basin, e. g . Bay of Quinte (Minns et al 1987), Long Point , and Green Bay ( H h s et al 1982). We believe that the ASPY case histories provide further documentation of broad ecosystemic responses to fishery exploitation, environmental changes, and species interactions.…”

mentioning

confidence: 99%

A Perspective on Great Lakes Fish Community Rehabilitation

Christie¹,

Spangler²,

Loftus³

et al. 1987

Can. J. Fish. Aquat. Sci.

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1987.A perspective on Great Lakes fish community rehabilitatisn. Can. I. Fish. Aquat. Sci. 4-4 (Suppl. 2): 48f5-499.Review of the ASPY syntheses suggested that destabilization and subsequent fish community recovery in the Great Lakes are compatible with a model in which postglacial succession, and the structure and persistence of the fish communities, were governed by piscivores. Recent advances in the areas of particle size distribution, ontogenetic niche theory, and ecosystem stability contributed t o a broader understanding of fishery management alternatives. Species succession in Great Lakes aquatic communities is characterized as a cyclic repetition of maturation followed by seasonal, annual, or periodic setbacks. These are termed "enjuvenation events" and are attributed t o any cultural or climatic factors which induce flux in energy-matter delivery t o the system. The extent of enjuvenation is dependent upon the magnitude of the perturbation and maturity of the community and is predictable t o some degree by the age and biomass distributions of the species present. The time course of rehabilitation t o any arbitrary prior condition of the community is closely related to the ersjuvenation-maturation cycle and t o the life span and reproductive characteristics of the species present. The principal homeostatic mechanism is perceived to lie with variations in the durations of life history stanzas as affected by fish growth rates. The "biomass storage" function of larger organisms in the system i s thought to be a major determinant of the "biotic inertia" or sensitivity of the community to perturbations. We are convinced that trophic linkages from the piscivores downwards must be maintained as biological feedback pathways t o ensure that moderately excessive fishery yields can be segf-limiting. Without these linkages (vulnerable t o intensive exploitation o r other catastrophic reductions in predators), biomass capture of nutrient inputs by algae will vector t o waste as planktivore density limits secondary production. The extent t o which the fish community can be maintained o r driven to a particular species composition is dependent upon the degree of external control of ail sorts that can be applied to the system. The rehabilitation continuum ranges from a self-sustaining assemblage of native species requiring little external controi to a completely artificially supported community of nsn-native species requiring extensive controls for both water quality and fish comsmunity maintenance.U n examen des syntheses de I'ASPY porte h croire que le d6s6quiIibre de la communaute piscicole des Grands Lacs et son r6tablissement ult4rieur csncsrdent 2 u n mod&le 013 la succession post-glaciale ainsi que la structure et la permanence des comrnunautes piscicoles sont r6gl6es par les piscivsres. Les recents prsgres r6alis6s d a m les domatines de la r6partition de la taille des particules, la theorie d'une niche '~o~laABPeatigsw No. 87-04 of the Oratxis Ministry of Natural Resources, Research Section, Fisheries Branch, Bo...

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“…Leach et al (1987) estimated that potential or maximum sustained fish yield as a percentage of production averaged 21% (range 7-47%) in the Great Lakes. Minns et al (1987) reported a range of 11-45% for the Bay of Quinte, Lake Ontario. So assuming yield is 20% of production, total potential yield in Ontario was 42,900 tons, and anglers removed 54.5%.…”

Section: Production/biomass/yieldmentioning

confidence: 99%

Impact Models to Assess Regional Acidification

Kämäri¹

1990

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ForewordSensitive receptors such as soil and fresh bodies of water are at the end of a long chain of events in the process of regional acidification. This chain begins thousands of kilometers upwind at the emitters of acidifying pollutants. The topics covered in this book are important in the study of regional acidification for two reasons. First, it is important to assess the sensitivity of terrestrial and aquatic ecosystems to the deposition of acidifying pollutants. If the sensitivity of an ecosystem is known, then international control strategies can be developed to reduce deposition in the receptor areas of greatest importance. This is an important factor in designing the most effective strategies because of the very high costs of reducing emissions of acidifying pollutants.Second, it is important to be able to predict changes in ecosystems for decades into the future, whether it be an improvement owing to decreases in acidifying emissions or, alas, a further deterioration because control strategies are nonexistent or inadequate. In either event, it is important to be able to judge the results of our actions.Decision makers tend to be mistrustful of models unless they can judge their reliability. The application and testing of the models in Part III of this book cover, therefore, an important facet of model building.This book is an ideal companion to another book that is forthcoming from the Transboundary Air Pollution Project at IIASA: The RAINS Model of Acidification: Science and Strategies in Europe. The latter book is a description of the development and use of the Regional Acidification INformation and Simulation (RAINS) model, an integrated assessment model for developing and determining control strategies to reduce regional acidification in Europe. Much of the research described in this book forms part of the foundation of the RAINS model. These two books cover a great deal of the present knowledge about assessing and dealing with a very important environmental problem in Europeregional acidification. R. W. Shaw Leader Transboundary Air Pollution Project Introduction Acidification of the EnvironmentAcidification of the environment is, like most recent environmental problems, a consequence of change in the natural cycles of elements. Some chemical substances that during millions of years leaked from the biosphere are again being emitted to the atmosphere. Owing to these anthropogenic emissions, fluxes of acidifying compounds to the soils and waters have increased manyfold since preindustrial times.The whole problem of air pollution is transboundary in nature; its geographic dimensions are difficult to define. Pollution sources are scattered in many countries, the consequences extending far away. Acidifying sulfur and nitrogen oxides can persist in the air up to a few days, long enough to be transported hundreds or even thousands of kilometers from the place they were emitted. During this transit time, gaseous pollutants undergo a complicated chemical conversion into nitric and sulfuric acids, which ar...

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Production and Biomass Size Spectra in the Bay of Quinte, A Eutrophic Ecosystem

Cited by 26 publications

References 12 publications

A Review of Methods for Prediction of Potential Fish Production with Application to the Great Lakes and Lake Winnipeg

A Review of Methods for Prediction of Potential Fish Production with Application to the Great Lakes and Lake Winnipeg

A Perspective on Great Lakes Fish Community Rehabilitation

Impact Models to Assess Regional Acidification

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