Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 17 of 17 for “"Baetidae"”.
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The Life History and Contributions to the Ecology of Camelobaetidius variabilis Wiersema 1998 (Ephemeroptera: Baetidae) in Honey Creek, Oklahoma
A study of the life history and ecology of Camelobaetidius variabilis was conducted in Honey Creek, OK from February 2003-April 2004. Nymph development was assessed using changes in external morphology. Laboratory reared nymphs were used to calculate number of degree days to complete development …
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Aspectos da biologia e ecologia de Callibaetis guttatus Navás, 1915 (Insecta: Ephemeroptera: Baetidae) em alagados temporários da Restinga de Maricá, Estado do Rio de Janeiro, com considerações taxonômicas
… guttatus Navás, 1915 (Insecta: Ephemeroptera: Baetidae) in temporary water bodies of Restinga de Maricá, Rio de Janeiro State, with taxonomical notes. Some aspects on the biology and ecology of C. guttatus were studied since 1986 , in Brejo-canal de Itaipuaçu Marsh and other temporary water …
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A efemeropterofauna do trecho ritral inferior do rio Campo Belo, Itatiaia, RJ: composição e distribuição, com aspectos biológicos e ecológicos das espécies de Americabaetis Kluge, 1992 (Insecta: Ephemeroptera: Baetidae)
… (2), Cloeodes (1), Paracloeodes (2) (Baetidae), Leptohyphes (2), Leptohyphodes (1), Tricorythopsis (3) Tricorythodes (1) (Leptohyphidae), Farrodes (1), Massartella (1), Miroculis (1), Thraulodes (1) and Ulmeritoides (1) (Leptophlebiidae). From monthly quantitative collections, taken …
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Diet overlap and habitat segregation between redbreast sunfish and age-o smallmouth bass in the North Anna River, Virginia
… Chironomidae (Insecta: Diptera) in June to Baetidae (Insecta: Ephemeroptera) in July and August. Fish also became increasingly important diet components of bass when assessed volumetrically. Small and medium sunfish ate predominantly Chironomidae in all sampling periods. Large sunfish ate …
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Interannual Variability of Lotic Macroinvertebrate Communities in the Kootenay-Columbia Basin, BC: the Relative Contribution of Environmental Gradients vs. Stream Water Temperatures
… associated with changes in relative abundance of Baetidae, while IR variation was associated with Ephemerellidae. These findings highlight the high interannual variability in natural BMI, which can obscure response patterns of taxa to specific environmental stressors.
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Macroinvertebrate Composition and Patterns of Prey Use By Juvenile Pallid Sturgeon (Scaphirhynchus albus) in the Missouri River, South Dakota, and Nebraska
… Chironomidae, Ceratopogonidae, Isonychiidae, Baetidae, Caenidae, Heptageniidae, Hydropsychidae, and Polycentropodidae. Invertebrate abundance, richness, diversity, and evenness were generally higher in the Gavins Point reach than in the Fort Randall reach for most gear types (except Surber …
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Fathead Minnows, Aquatic Invertebrates, and Mallard Duckling Interactions in Man-Made Ponds
… by minnow presence . Fewer Chironomidae, Baetidae, Ceratopogonidae, and Coenagrionidae were caught in stocked cells, but numbers were not significantly different. Average length of Chironomidae were larger in stocked cells, while Corixidae were larger in control cells. Results demonstrate …
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A ordem Ephemeroptera no Brasil (Insecta): Taxonomia e diversidade
… A. saguassu; oito novas espécies de Baetidae, Varipes helenae, Cloeodes auwe, Camelobaetidius francischettii, C. hamadae, C. lassance, C. maranhensis, Baetodes santatereza e B. liviae. A espécie-tipo do gênero Camelobaetidius, C. leentvaari, foi redescrita, com base em material-tipo e …
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Serangga akuatik sebagai indikator kualiti air di Johor
… Hydropsychidae dari order Trichoptera, famili Baetidae dari order Ephemeroptera dan famili Simuliidae dari order Diptera. Berdasarkan kepada kepelbagaian famili mengikut indek kepelbagaian Shannon (H’), TNJER- PETA direkodkan sebagai yang mempunyai indeks tertinggi (H’= 3.215) diikuti HLSP (H’= …
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"Aplicación de un sistema multimétrico para evaluar la calidad del agua superficial en la microcuenca El Coyote del Rio Estelí, Nicaragua"
… en cinco familias : Leptohyphidae , Baetidae , Hydropsychidae , Chironomidae y Physidae , siendo el cariotipo piedra el que present ó mayor diversidad y abundancia . El promedio del BMWP /Col fue de 60.06, indicando una calidad del agua entre dudosa y aceptable , y el índice ASPT de …
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Feeding of Hatchery-reared Brown Trout (Salmo trutta L.) In Relation To The Diet In A South Dakota Stream
… abundant order of invertebrates in the drift; Baetidae and Caenidae contributed 95 percent of all mayflies collected. Hydropsychidae and Hydroptilidae comprised 93 percent of all drifting Trichoptera. Frogs and fishes were the primary food consumed by the brown trout examined. Trout ate a …
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Ecotoxicological and genetic effects of a mixture of heavy metals on selected aquatic macroinvertebrates
… of the mayfly Baetis tricaudatus (Ephemeroptera: Baetidae) previously exposed to a mixture of metals in the field exhibited higher survival and growth, and bioaccumulated more cadmium than naive populations. In addition, previously exposed populations had significantly higher metallothionein …
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Ecology of benthic macroinvertebrates in experimental ponds
… Callibaetis floridanus (Ephemeroptera: Baetidae), Anax junius (Odonata: Aeshnidae), Gomphus exilis (Odonata: Gomphidae), and Enallagma civile (Odonata: Coenagrionidae). Growth rates ranged from 0.011 to 0.025 mg DW/d for Ephemeroptera and from 0.012 to 0.061 mg DW/d for Odonata. Annual …
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Responses of Aquatic Benthic Macroinvertebrate Communities to a Large Flow Pulse in the Guadalupe, San Antonio and Brazos River Basins, Texas
… of some BMI taxa responded positively (e.g., Baetidae, Hydropsychidae, Isonychiidae) and negatively (e.g., Elmidae, Leptophlebiidae, Chironomidae) to high flow pulses. Therefore, flow-responsive BMI taxa found in this study provide potential indicator species for environmental flow standards …
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Macroinvertebrate composition of the upper Georges River with reference to urban, industrial and agricultural impacts
… and macrophytes in this habitat. The Baetidae mayfly was found to be intolerant to low pH values, as was the Ephemeroptera Caenidae which had a vector gradient similar to the pH vector gradients for three of the four times pH was correlated. The Leptophlebiidae mayflies (UlmeroDhlebia. …
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Toward improved assessment of freshwater salinization as a benthic macroinvertebrate stressor
… was also revealed across sampling dates. Non-Baetidae Ephemeroptera were most sensitive to salinity, with richness and abundance lower than reference at SC > 200 =µS/cm in Spring based on snapshot SC. Equivalent effects were predicted by mean monthly SC of 250-300 µS/cm from the prior Fall. …
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Spatial and temporal distribution of the benthos in the Mfolozi-Msunduzi Estuary, KwaZulu – Natal
… triaenonyx. Freshwater taxa, such as Simuliidae, Baetidae, Chironomidae and Ecnomidae were recorded in the upper reaches of the Mfolozi Estuary during summer, this was due to the area being dominated by freshwater inflow. No significant differences (p<0.05) were found between sampling seasons and …