Heterogeneous detection probabilities for imperiled Missouri River fishes: implications for large-river monitoring programs

Schloesser, Joshua; Paukert, Craig P.; Doyle, Wyatt J.; Hill, Tracy D.; Steffensen, Kirk D.; Travnichek, V. H.

doi:10.3354/esr00399

Cited by 21 publications

(31 citation statements)

References 34 publications

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“…Overdispersed models were ranked using quasi-AIC c (QAIC c ) and an additional parameter was added to further penalize overdispersed candidate models (Burnham & Anderson, 2002). All models with a DAIC c or DQAIC c of B2 were considered plausible (Burnham & Anderson, 2002;Schloesser et al, 2012).…”

Section: Methodsmentioning

confidence: 99%

Habitat use of non-native burbot in a western river

et al. 2015

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Burbot, Lota lota (Linnaeus), were illegally introduced into the Green River drainage, Wyoming in the 1990s. Burbot could potentially alter the food web in the Green River, thereby negatively influencing socially, economically, and ecologically important fish species. Therefore, managers of the Green River are interested in implementing a suppression program for burbot. Because of the cost associated with the removal of undesirable species, it is critical that suppression programs are as effective as possible. Unfortunately, relatively little is known about the habitat use of non-native burbot in lotic systems, severely limiting the effectiveness of any removal effort. We used hurdle models to identify habitat features influencing the presence and relative abundance of burbot. A total of 260 burbot was collected during 207 sampling events in the summer and autumn of 2013. Regardless of the season, large substrate (e.g., cobble, boulder) best predicted the presence and relative abundance of burbot. In addition, our models indicated that the occurrence of burbot was inversely related to mean current velocity. The efficient and effective removal of burbot from the Green River largely relies on an improved understanding of the influence of habitat on their distribution and relative abundance.

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Section: Methodsmentioning

confidence: 99%

Habitat use of non-native burbot in a western river

et al. 2015

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“…Many passive fishing gears such as trap nets, hoop nets and gill nets do not work well in high flow or deep waters. Moreover, endangered river fish are rare, so the detection probability of imperiled species is limited and varies by gear type, something that must be accounted for during research and monitoring (Schloesser et al 2012, this Theme Section). In some regions, explosives or piscicides are used with some success for monitoring, although such lethal sampling techniques should be used with caution when working with endangered species.…”

Section: River Fish and Their Habitats Are Inherently Difficult To Studymentioning

confidence: 99%

“…There are, however, a growing number of quantitative tools for addressing those challenges inherent to endangered river fish (e.g. see Wenger & Freeman 2008, Schloesser et al 2012.…”

Section: River Fish and Their Habitats Are Inherently Difficult To Studymentioning

confidence: 99%

“…Monitoring and resto ration programs often dictate success based on recovery or stability of a species listed by government agencies as endangered or threatened. Indeed, very few papers on endangered river fish incorporate data for more than a few fish species (but see Koehn & Lintermans 2012, Schloesser et al 2012. However, biological integrity of rivers incorporates species diversity, composition, and function (Karr 1981).…”

Section: Efforts Focused On a Single Species Often Fail To Address Brmentioning

confidence: 99%

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Endangered river fish: factors hindering conservation and restoration

Cooke¹,

Paukert²,

Hogan³

2012

Endang. Species. Res.

166

119

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Globally, riverine fish face many anthropogenic threats including riparian and flood plain habitat degradation, altered hydrology, migration barriers, fisheries exploitation, environmental (climate) change, and introduction of invasive species. Collectively, these threats have made riverine fishes some of the most threatened taxa on the planet. Although much effort has been devoted to identifying the threats faced by river fish, there has been less effort devoted to identifying the factors that may hinder our ability to conserve and restore river fish populations and their watersheds. Therefore, we focus our efforts on identifying and discussing 10 general factors (can also be viewed as research and implementation needs) that constrain or hinder effective conservation action for endangered river fish: (1) limited basic natural history information; (2) limited appreciation for the scale/extent of migrations and the level of connectivity needed to sustain populations; (3) limited understanding of fish/river-flow relationships; (4) limited understanding of the seasonal aspects of river fish biology, particularly during winter and/or wet seasons; (5) challenges in predicting the response of river fish and river ecosystems to both environmental change and various restoration or management actions; (6) limited understanding of the ecosystem services provided by river fish; (7) the inherent difficulty in studying river fish; (8) limited understanding of the human dimension of river fish conservation and management; (9) limitations of single species approaches that often fail to address the broader-scale problems; and (10) limited effectiveness of governance structures that address endangered river fish populations and rivers that cross multiple jurisdictions. We suggest that these issues may need to be addressed to help protect, restore, or conserve river fish globally, particularly those that are endangered.

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“…the proportion of sampled sites occupied) and detection probabilities. The approach has been broadly used for other aquatic and semi-aquatic taxa (Jeffress et al, 2011;Schloesser et al, 2012;Pearl et al, 2013;Dextrase et al, 2014;Smith et al, 2014), but rarely for freshwater mussels (Wisniewski et al, 2013a).…”

Section: Introductionmentioning

confidence: 99%

Search effort and imperfect detection: Influence on timed-search mussel (Bivalvia: Unionidae) surveys in Canadian rivers

Reid

2016

Knowl. Manag. Aquat. Ecosyst.

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-Inventories and population monitoring are essential activities supporting the conservation of freshwater mussel diversity in Canadian rivers. Despite widespread use of timed-search methods to survey river mussels, the relationship between species detection and search effort has received limited study. In this study, repeat-sampling data from 54 Ontario river sites were used to estimate: (1) species detection probabilities; (2) the number of sampling events required to confidently detect species; and, (3) the power of timed-search surveys to detect future distribution declines. Mussels were collected using visual and tactile methods, and collection data were recorded separately for each 1.5 h of search time (up to 4.5 h). Thirteen species were collected; including two endangered species (Rainbow Villosa iris and Eastern Pondmussel Ligumia nasuta). In all cases, species detection was imperfect. However, detection probabilities (p) for most species were high (>0.69). Two repeat 4.5 h surveys are required to confidently assess whether most (83%) species are present at a site. Search effort had a positive effect on estimates of species richness, detection probability and site occupancy, and the power to detect future distribution declines. At all levels of sampling effort, detection probability and site occupancy estimates were positively correlated to mussel abundance.

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Heterogeneous detection probabilities for imperiled Missouri River fishes: implications for large-river monitoring programs

Cited by 21 publications

References 34 publications

Habitat use of non-native burbot in a western river

Habitat use of non-native burbot in a western river

Endangered river fish: factors hindering conservation and restoration

Search effort and imperfect detection: Influence on timed-search mussel (Bivalvia: Unionidae) surveys in Canadian rivers

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