Exploitation trajectory of a declining fauna: a century of freshwater mussel fisheries in North America

Anthony, J. L.; Downing, John A.

doi:10.1139/cjfas-58-10-2071

Cited by 25 publications

(18 citation statements)

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“…Despite the shortcomings of the catch curve analysis (i.e. potential violations of assumptions of a stationary and stable population), the mortality estimates from this study are similar to those reported in the literature using mark–recapture techniques (Anthony and Downing, 2001; Villella et al ., 2004) suggesting they are realistic approximations. However, recent research suggests that even mark–recapture studies are not immune to problems with biased estimates of mortality because repeated handling can significantly reduce mussel growth and result in overestimated age (Haag, 2009).…”

Section: Discussionsupporting

confidence: 79%

Population assessment and potential functional roles of native mussels in the Upper Mississippi River

Newton¹,

Zigler²,

Rogala³

et al. 2011

Aquatic Conservation

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ABSTRACT1. Despite a heightened global concern for native mussels, fundamental research on mussel ecology in large rivers is lacking. These gaps in knowledge about where mussels occur, and why, are limiting habitat restoration activities.2. Large-scale systematic surveys for native mussels in three reaches of the Upper Mississippi River documented mussel communities composed of 16-23 species and ranging from 2.9-4.5 live mussels m À2 that were actively recruiting new cohorts into their populations (87-100% of the species were found as juveniles p5 years old). Estimates of mean tissue biomass and production in these reaches ranged from 2.1-3.1 g C m À2 and 0.4-0.6 g C m À2 year À1 , respectively. 3. Mussels filtered a significant amount of water (range, 0.05-0.07 m 3 m À2 d À1) over a 480 km reach of the Upper Mississippi River -amounting to a filtration rate of 53.1 million m 3 day À1 . The filtration rate of mussels as a percentage of river discharge ranged from 0.5-1.4% at high flows (5% exceedance), from 1.5-4.4% at moderate flows (50% exceedance) and from 4.4-12.2% during low flows (95% exceedance).4. Collectively, these data suggest that native mussels play an integral role in this ecosystem by sequestering suspended materials that can be used by other benthic organisms.

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Section: Discussionsupporting

confidence: 79%

Population assessment and potential functional roles of native mussels in the Upper Mississippi River

Newton¹,

Zigler²,

Rogala³

et al. 2011

Aquatic Conservation

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“…Over a decade ago, Ricciardi & Rasmussen (1999) predicted a future extinction rate of freshwater mussels at 6.4% per decade, and numerous studies have documented abundance declines of once widespread, common mussel species (e.g. Neves et al, 1997;Vaughn & Taylor, 1999;Anthony & Downing, 2001;Brainwood, Burgin & Byrne, 2006;Krebs et al, 2010). The relative immobility, long lifespan and reproductive characteristics of freshwater mussels make them particularly vulnerable to habitat disturbance, especially habitat fragmentation (Strayer, 2008).…”

Section: Probability Of Local Colonisation or Extinctionmentioning

confidence: 99%

Life history traits and abundance can predict local colonisation and extinction rates of freshwater mussels

Vaughn

2012

Freshwater Biology

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1. A critical need in conservation biology is to determine which species are most vulnerable to extinction. Freshwater mussels (Bivalvia: Unionacea) are one of the most imperilled faunal groups globally. Freshwater mussel larvae are ectoparasites on fish and depend on the movement of their hosts to maintain connectivity among local populations in a metapopulation. 2. I calculated local colonisation and extinction rates for 16 mussel species from 14 local populations in the Red River drainage of Oklahoma and Texas, U.S. I used general linear models and AIC comparisons to determine which mussel life history traits best predicted local colonisation and extinction rates. 3. Traits related to larval dispersal ability (host infection mode, whether a mussel species was a host generalist or specialist) were the best predictors of local colonisation. 4. Traits related to local population size (regional abundance, time spent brooding) were the best predictors of local extinction. The group of fish species used as hosts by mussels also predicted local extinction and was probably related to habitat fragmentation and host dispersal abilities. 5. Overall, local extinction rates exceeded local colonisation rates, indicating that local populations are becoming increasingly isolated and suffering an 'extinction debt'. This study demonstrates that analysis of species traits can be used to predict local colonisation and extinction patterns and provide insight into the long-term persistence of populations.

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“…In the past, food availability allowed the development of rich native mussel communities in the UMR, some of which were extensively exploited with the button industry from 1850's to 1930's (Anthony & Downing 2001). Prior to the zebra mussel invasion, densities .100 mussels/m 2 had been observed in some areas (Whitney et al 1997).…”

Section: Les-chaves 2004)mentioning

confidence: 99%

Hydroinformatics techniques in eco-environmental modelling and management

Chen

Morales-Chaves

et al. 2006

Journal of Hydroinformatics

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The high complexity of aquatic ecosystems and the multiple processes involved, make the development of ecohydraulics and eco-environmental models a challenging subject. Conventionally, computer-based models use a mathematical formulation for the processes involved which are then solved by numerical methods. These models are often derived based on the assumption of spatial homogeneity and conservation principles of mass, momentum and energy. Development of these models often demands a clear understanding of the processes involved. However, the above assumptions are easily violated when spatial heterogeneity, individual species behaviour and local interactions play a significant role in the system dynamics. In particular for eco-environmental systems, knowledge on local interactions that determine the overall system behaviour is not always available.Although the rapid advances of data-driven techniques have recently made great contributions to water-environment related research, data on ecosystems are often quite limited, which restricts the application of data mining methods to eco-environmental system modelling. In addition, no modelling -also not black-box modelling -can be undertaken without having at least some understanding of the basic processes and mechanisms involved. It is always advisable to start exploring any dataset using conventional statistical techniques, as elaborated in this paper for a case study on Western Xiamen Bay, China. Neural network trimming was then used to establish the dominant factors; it was shown that a relatively simple ANN model was quite capable of capturing the essential features, provided the right input parameters are chosen. Examples of integrated approaches to ecohydraulics modelling coupling formulations with cellular automata and physical equations with fuzzy rules are presented for applications on eutrophication modelling of Taihu Lake in China, competitive growths and colonization of two underwater macrophytes in Lake Veluwe in The Netherlands, and forecasting of algal blooms in the Dutch coastal waters on the North Sea. A mussel dynamics model developed for the Upper Mississippi River in the USA demonstrates the feasibility of individual based modelling in ecosystem dynamics. Numerical models are quite capable of simulating the abiotic aquatic environment, including complicated fluid flow and transport mechanisms. However, when it comes to simulating the biotic and ecosystem dynamics, the interaction of individual species with their environment, as well as the interactions amongst species, has to be taken into account. The future of ecohydraulics and ecoenvironmental modelling thus seems to lie in the integration of different paradigms and techniques, which is the core content of the hydroinformatics discipline.

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Exploitation trajectory of a declining fauna: a century of freshwater mussel fisheries in North America

Cited by 25 publications

References 0 publications

Population assessment and potential functional roles of native mussels in the Upper Mississippi River

Population assessment and potential functional roles of native mussels in the Upper Mississippi River

Life history traits and abundance can predict local colonisation and extinction rates of freshwater mussels

Hydroinformatics techniques in eco-environmental modelling and management

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