![](images/graphics/blank.gif)
Aquatic insects
-
The Insecta are the most diverse group of animals on the planet. The diversity of Plecoptera aquatic insect order is used as an environmental and ecological indicator. The study of endemic species is important for confirming the national biodiversity and contributing to the determination of national sovereignty. Despite Vietnam being a biodiversity hotspot, the number of known insect species remains limited.
11p
viambani
18-06-2024
3
1
Download
-
Ebook "Encyclopedia of South American aquatic insects: Odonata - Zygoptera - Illustrated keys to known families, genera, and species in South America" was begun to provide keys to the aquatic insect species known from Brazil. The original goal was to include all genera known from South America and all species from Brazil, but for most groups, the scope was expanded to encompass all species in South America, and, in some cases, to include terrestrial species of orders that include both terrestrial and aquatic taxa.
698p
tachieuhoa
28-01-2024
2
2
Download
-
In this study, specimens were collected at 5 different sites. The aquatic insects were collected both quantitatively by Surber net (size 50 cm × 50 cm, mesh size 0.2 mm) and qualitatively by hand net and pond net. A field survey was conducted in December 2019 (dry season) and in June 2020 (rainy season).
7p
tamynhan5
10-12-2020
9
2
Download
-
Accumulation of chromium (Cr) was determined in water, sediment, aquatic plants, invertebrates and fish in aquatic ecosystems receiving effluents from handloom textile industries in Ranaghat–Fulia region of West Bengal in India. Cr was determined in the samples by atomic absorption spectrophotometer and data were analyzed functionally by Genetic Algorithm to determine trend of depositions of Cr in the sediment and water. Area plot curve was used to represent accumulation of Cr in biota.
8p
trinhthamhodang1
16-11-2019
29
0
Download
-
The aims of this study are to show the data on faunas and communities of aquatic insects in the Seo My Ty Stream in Ta Van Commune and the Nam Cang Stream in Nam Cang Commune in the Hoang Lien National Park, Lao Cai Province. Ta Van Commune belonging to the core area of the National Park, while Nam Cang Commune is located in the buffer area of the Natinal Park.
6p
vithanos2711
08-08-2019
13
0
Download
-
As a result, a total of 110 aquatic insect species belonging to 98 genera, 49 families and 9 orders were recognized. Among these, the order Ephemeroptera had the highest species number with 26 species, followed by Odonata with 25 species, Trichoptera with 18 species, Coleoptera with 15 species, Hemiptera with 11 species, Diptera with 9 species.
8p
cathydoll4
21-02-2019
12
0
Download
-
Bài báo này công bố những kết quả bước đầu về thành phần loài ấu trùng bộ Cánh lông (Aquatic insect – Trichoptera) ở vườn Quốc gia Bạch Mã góp phần cung cấp một số dẫn liệu mới về khu hệ côn trùng nước Việt Nam.
7p
blossom162
07-01-2019
76
1
Download
-
Trong nghiên cứu này, chúng tôi tiến hành sử dụng ấu trùng côn trùng ở nước (aquatic insect) của ba bộ: Phù du (Ephemeroptera), Cánh úp (Plecoptera) và Cánh lông (Trichoptera) làm chỉ thị sinh học để đánh giá chất lượng nước mặt ở 6 điểm tại lưu vực hồ Truồi thuộc huyện Phú Lộc, tỉnh Thừa Thiên Huế thông qua hệ thống tính điểm chống chịu của các họ côn trùng ở nước của Hilsenhoff (1988) và chỉ số sinh học EPT (Schmiedt et al., 1998)....
1p
sunshine_6
15-07-2013
144
8
Download
-
Color changes due to virus infections are observed in both dead and living insects. The blue coloration asso- ciated with iridescent viruses may be pale to a deep blueepurple with a distinct iridescence. Less commonly, orange iridescent virus may also be observed in mosquito larvae. Chalky white zones in the midgut and fat body are observed with some viruses. In aquatic Diptera, NPV in mosquitoes and CPV in mosquitoes, black flies and others are distinctly observed in the midgut region as chalky white areas.
40p
quynho77
12-11-2012
65
1
Download
-
Containers for collecting live hosts may include any type of cage that prevents escape, including plastic vials with pinholes in the lids or with cotton plugs for air circulation and prevention of condensation. The addition of a drying agent, such as silica gel, to the container used for temporary storage will slow or prevent germination of entomopathogenic fungi and bacteria, and help eliminate the growth of saprobic fungi on specimens (Figure 1.3). Aquatic invertebrates and specimens containing nematodes and certain protistan parasites should not be allowed to dry.
27p
quynho77
12-11-2012
65
1
Download
-
Bài báo này (Aquatic insect) ải Vân . Kết quả bước đã xác định được 69 loài, 52 ở nước bao gồm: bộ Phù du (Ephemeroptera) 24 loài thuộc 19 giống, 5 họ; bộ Cánh úp (Plecoptera) 15 loài thuộc 12 giống, 4 họ; bộ Cánh lông (Trichoptera) 25 loài thuộc 17 giống, 7 họ (Odonata) 5 5 . Thành phần loài côn trùng ở nước phân bố theo độ ố không đồng đều. Tần số bắt gặ . các có xu thế giả ực đầu nguồn (độ cao 587m) chỉ xác định được 27 loài, trong khi đó...
0p
camlaichanh
12-11-2011
102
12
Download
-
Field and laboratory studies were conducted to evaluate the use of bacterial growth on aquatic insects as a metric for determining the existence of nutrient impacts in wetlands. Results from field investigations indicated that elevated concentrations of nitrate and phosphate...
10p
nhoxden_20101991
13-06-2011
95
8
Download
-
Chapter 10 AQUATIC INSECTS Every inland waterbody, whether a river, stream, seepage, or lake, supports a biological community. The most familiar components often are the vertebrates, such as fish and amphibians.
24p
lqhoang
30-11-2010
86
6
Download
CHỦ ĐỀ BẠN MUỐN TÌM
![](images/graphics/blank.gif)