Diatoms from gut contents of museum specimens of an endangered minnow suggest long-term ecological changes in the Rio Grande (USA)

Shirey, Patrick D.; Cowley, David E.; Sallenave, Rossana

doi:10.1007/s10933-007-9156-4

Cited by 16 publications

(13 citation statements)

References 25 publications

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“…In addition, periods of low flow, where species are confined to isolated pools, are associated with a gut contents switch from insects to detritus, plant material and sand/silt (Marks et al., ; Wilde et al., ), which may affect nutritional intake. Changes in the identity of diatoms consumed by Rio Grande silvery minnow are indicative of a switch from species found in shallow silted habitats to those found in shallow sandy areas (Shirey, Cowley & Sallenave, ). This change suggests a reduction in nutrient availability in the Rio Grande, associated with a decline in sediment transport due to the presence of impoundments and a reduction in lateral connectivity with the floodplain (Shirey et al., ).…”

Section: Resultsmentioning

confidence: 99%

“…Changes in the identity of diatoms consumed by Rio Grande silvery minnow are indicative of a switch from species found in shallow silted habitats to those found in shallow sandy areas (Shirey, Cowley & Sallenave, ). This change suggests a reduction in nutrient availability in the Rio Grande, associated with a decline in sediment transport due to the presence of impoundments and a reduction in lateral connectivity with the floodplain (Shirey et al., ).…”

Section: Resultsmentioning

confidence: 99%

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The emblematic minnows of the North American Great Plains: A synthesis of threats and conservation opportunities

et al. 2017

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Anthropogenic changes to the Great Plains rivers of North America have had a large, negative effect on a reproductive guild of pelagic‐broadcast spawning (PBS) cyprinid fishes. The group is phylogenetically diverse, with multiple origins of the PBS mode. However, because of incomplete life‐history information, PBS designation often relies only on habitat and egg characteristics. We identified 17 known or candidate PBS fishes and systematically synthesized the literature on their biology and ecology in relation to major threats to persistence. Research output on an individual species was unrelated to conservation status, but positively correlated with breadth of distribution. The PBS species have opportunistic life‐history strategies and are typically short‐lived (generally 1–3 years) fishes. Many PBS species have truncated ranges showing declines in both distribution and abundance, especially those endemic to the Rio Grande catchment. Fundamental habitat associations are unknown for many species, particularly regarding seasonal shifts and early life stages. Critical thermal tolerances have been quantified for five PBS species and are generally >35°C. Turbidity and salinity changes are linked to responses at multiple life stages, but information is lacking on interactions between water quality and quantity. Hydrologic alteration appears to be a primary threat to PBS species, through complex interactions with landscape fragmentation, and habitat change. We highlight areas where scientific and management communities are lacking information and underline areas of potential conservation gain.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

The emblematic minnows of the North American Great Plains: A synthesis of threats and conservation opportunities

et al. 2017

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“…In such studies the term ''trait'' usually refers to morphological (mucilaginous, stalked, size) and/or ecological (benthic, planktonic) attributes. For instance, Shirey et al (2008) assessed the abundance of epipelic, epipsammic, motile/non-motile diatoms and successfully related their abundance to environmental data (BOD 5 , O 2 ). Species traits defined by Van Dam et al (1994) are also often used to assess pollution (Stevenson et al, 2009).…”

Section: Species Approaches (Group Of Papers #3)mentioning

confidence: 99%

Recent views on river pollution and diatoms

Rimet¹

2011

Hydrobiologia

162

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The first studies of diatoms and river pollution were carried out 60 years ago, and the suitability of these micro-algae as bioassessment indicators for monitoring river quality was quickly demonstrated. The objective of this review is to describe the state of the art of the study of diatoms and river pollution between 1999 and 2009. The objective was to group the publications homogeneously according to subject and to indicate which subjects never overlap. To this end a lexical analysis was conducted on the abstract structure of these publications and seven K-means clusters were defined.

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“…; Shirey et al. ; Watson et al. ), it is important to manage algal blooms to enable sunlight to penetrate to the bottom (14–90 cm) to produce these desired food organisms.…”

Section: Methodsmentioning

confidence: 99%

Raising Fish in a Purpose‐Built Conservation Aquaculture Facility Using Conservation Aquaculture Management

Tave¹,

Toya²,

Hutson³

2019

N American J Aquac

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The naturalized conservation aquaculture unit (refugium) at Los Lunas Silvery Minnow Refugium is the first purpose‐built, large‐scale conservation aquaculture mesocosm. The refugium is 0.2 ha in area, with 0.11 ha of interconnected water habitats, including a stream with sand bars, five ponds, shelves, marshes, attached bars, and overbank areas that can be inundated to create floodplains. The key components of conservation aquaculture management in the refugium are as follows: (1) no artificial feed is used, so that the fish develop the foraging strategies that will be needed in the wild and do not develop maladaptive behaviors associated with feeding; (2) the production of natural food organisms is based on indirect fertilization; (3) fish are subjected to managed predation, so that when stocked they are not behaviorally naïve; and (4) low stocking rates are used to mimic population densities in the wild. Results from 6 years of management and the lessons learned about facility design and conservation aquaculture management are discussed.

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Diatoms from gut contents of museum specimens of an endangered minnow suggest long-term ecological changes in the Rio Grande (USA)

Cited by 16 publications

References 25 publications

The emblematic minnows of the North American Great Plains: A synthesis of threats and conservation opportunities

The emblematic minnows of the North American Great Plains: A synthesis of threats and conservation opportunities

Recent views on river pollution and diatoms

Raising Fish in a Purpose‐Built Conservation Aquaculture Facility Using Conservation Aquaculture Management

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