Tradeoffs between respiration and feeding in Sacramento blackfish, Orthodon microlepidotus

Cech, Joseph J.; Massingill, Michael J.

doi:10.1007/978-94-017-1356-6_11

Cited by 3 publications

(4 citation statements)

References 17 publications

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“…When concentrations drop below 5 mg/l, many species employ physiological and behavioral adaptations to maintain adequate rates of oxygen uptake, but as DO concentrations drop below 2-3 mg/l, these adaptations often prove insufficient. Temperate species that naturally occur in habitats where environmental hypoxia is commonplace, such as the crucian carp (Carassius carassius) and Sacramento blackfish (Orthodon microlepidotus) (Campagna and Cech 1981;Cech and Massengill 1995) have physiological adaptations that allow them to tolerate environmental hypoxia (Walker and Johannsen 1977). For example, the alligator gar Lepisosteus spatula breathes air through a modified swim bladder (Jenkins and Burkhead 1993).…”

Section: Temperate Fishesmentioning

confidence: 98%

Potential impacts of global climate change on freshwater fisheries

Ficke

Myrick

Hansen

2007

Rev Fish Biol Fisheries

945

642

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Despite uncertainty in all levels of analysis, recent and long-term changes in our climate point to the distinct possibility that greenhouse gas emissions have altered mean annual temperatures, precipitation and weather patterns. Modeling efforts that use doubled atmospheric CO 2 scenarios predict a 1-78C mean global temperature increase, regional changes in precipitation patterns and storm tracks, and the possibility of ''surprises'' or sudden irreversible regime shifts. The general effects of climate change on freshwater systems will likely be increased water temperatures, decreased dissolved oxygen levels, and the increased toxicity of pollutants. In lotic systems, altered hydrologic regimes and increased groundwater temperatures could affect the quality of fish habitat. In lentic systems, eutrophication may be exacerbated or offset, and stratification will likely become more pronounced and stronger. This could alter food webs and change habitat availability and quality. Fish physiology is inextricably linked to temperature, and fish have evolved to cope with specific hydrologic regimes and habitat niches. Therefore, their physiology and life histories will be affected by alterations induced by climate change. Fish communities may change as range shifts will likely occur on a species level, not a community level; this will add novel biotic pressures to aquatic communities. Genetic change is also possible and is the only biological option for fish that are unable to migrate or acclimate. Endemic species, species in fragmented habitats, or those in east-west oriented systems will be less able to follow changing thermal isolines over time. Artisanal, commercial, and recreational fisheries worldwide depend upon freshwater fishes. Impacted fisheries may make it difficult for developing countries to meet their food demand, and developed countries may experience economic losses. As it strengthens over time, global climate change will become a more powerful stressor for fish living in natural or artificial systems. Furthermore, human response to climate change (e.g., increased water diversion) will exacerbate its already-detrimental effects.Model predictions indicate that global climate change will continue even if greenhouse gas emissions decrease or cease. Therefore, proactive management strategies such as removing other stressors from natural systems will be necessary to sustain our freshwater fisheries.

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Section: Temperate Fishesmentioning

confidence: 98%

Potential impacts of global climate change on freshwater fisheries

Ficke

Myrick

Hansen

2007

Rev Fish Biol Fisheries

945

642

View full text Add to dashboard Cite

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“…Similarly, Cech & Massingill (1995) explore the potentially conflicting constraints operating on the pharyngeal apparatus of Sacramento blackfish in which the gill bars function not only in support of respiration, but also as the primary prey-capture surface for these suspension-feeding fishes . Blackfish altered a number of gill ventilation behaviors in response to both hypoxia and feeding.…”

Section: Contributions From the Ecomorphology Of Fishes Volumementioning

confidence: 99%

“…ventilation rate) that are integrated with structural features (e.g . gape) to enable them to survive and even to feed under hypoxic conditions (Cech & Massingill 1995) . These types of interdisciplinary studies highlight the importance and the advantages of integrating ecophysiology, behavioral ecology, and ecomorphology.…”

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confidence: 99%

The role of ecomorphological studies in the comparative biology of fishes

1995

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SynopsisThe goal of an ecomorphological study is to understand the interactions between the morphology of organisms and their ecology. Both the morphology and the ecology presented by an organism are directly or indirectly under the influence of the environmental conditions that the organism experiences and its heritable composition. The development and interpretation of the central element of ecomorphological studies, the comparison between patterns of variation of morphological and ecological characters, depends heavily on the mechanistic framework provided by functional morphological and biomechanical studies. The cause-andeffect hypotheses derived from this comparison can be tested with performance trials . Ecomorphology forms an integral part of comparative biology, along with ecophysiology, behavioral ecology, and evolutionary ecology. Current issues in ecomorphological research that are addressed in this volume include application of a more functional approach to the choice of characters, integration of morphological, behavioral, and physiological information to address adaptation, and the expansion of spatial and temporal (ontogenetic and evolutionary) scales of ecomorphological questions . Future directions for ecomorphology include broadening the knowledge base, further integration of information from other disciplines, examination of the role of environmental and genetic factors in producing and maintaining ecological and morphological diversity, and application of ecomorphological insights to questions of community structure.

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“…A complex interplay of factors (e.g ., behavioral, ecological, physiological, historical, and morphological constraints) may influence the morphological and ecological characters that are being studied (e.g ., Baker et al . 1995, Cech & Massingill 1995 . This interplay might prohibit a perfect fit between morphological and ecological parameters, result in a suboptimal fit or leave no connection at all (see Gould & Lewontin 1979, Motta & Kotrschal 1992, Losos & Miles 1994, Ricklefs & Miles 1994 .…”

Section: An Approach To Ecomorphologymentioning

confidence: 99%

Perspectives on the ecomorphology of bony fishes

1995

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SynopsisThe field of ecomorphology has a long history with early roots in Europe . In this half of the century the application of ecomorphology to the biology of fishes has developed in the former Soviet Union, Poland and Czechoslovakia, The Netherlands, and in North America . While the specific approaches vary among countries, many North American studies begin by comparing morphological variation with variation in ecological characteristics at the intra or interspecific levels . These initial correlative studies form the ground work for hypotheses that explore the mechanistic underpinnings of the observed ecomorphological associations . Supporting these mechanistic hypotheses are insights from functional studies which demonstrate the limits to potential resource use resulting from a particular morphology ; however, the actual resource use is likely to be more limited due to additional constraints provided by internal (e.g., behavior, physiology) and external (e.g ., resource abundance, predator distribution) factors . The results from performance studies in the laboratory or field can be used to test specific ecomorphological hypotheses developed from the initial correlational and functional studies . Such studies may, but rarely do, incorporate an ontogenetic analysis of the ecomorphological association to determine their effect on performance . Finally, input from phylogenetic analyses allow an investigator to examine the evolution of specific features and to assess the rates and directionality of character evolution. The structural and ecological diversity of fishes provides a fertile ground to investigate these interactions. The contributions in this volume highlight some of the specific directions for ecomorphological research covering a variety of biological processes in fishes . These include foraging, locomotion, reproduction, respiration, and sensory systems . Running through these papers are new insights into universal ecomorphological issues, i.e., the relationships between form and ecological role and the factors that modify these relationships.

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Tradeoffs between respiration and feeding in Sacramento blackfish, Orthodon microlepidotus

Cited by 3 publications

References 17 publications

Potential impacts of global climate change on freshwater fisheries

Potential impacts of global climate change on freshwater fisheries

The role of ecomorphological studies in the comparative biology of fishes

Perspectives on the ecomorphology of bony fishes

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