Results 31 to 40 of about 565 (165)

Evaluation of Yellow Mealworm (<i>Tenebrio molitor</i>) Larvae Meal as a Carbon Source in Biofloc System for Dwarf Crayfish (<i>Cambarellus montezumae</i>) Culture. [PDF]

Aquac Nutr
The aim of this study was to evaluate the use of Tenebrio molitor larvae meal as a carbon source in a biofloc system (BFT) to optimize the culture of C. montezumae. A trial was conducted for 24 weeks, 500 T. molitor larvae were reared with wheat bran as substrate, and hydration once a week; at the end, 9000 T.
Paredes-Chávez RP, Mata-Sotres JA, Parra-Laca R, Ramírez-Torrez JA, Becerril-Cortés D, Dosta MDCM.   +5 more
europepmc   +2 more sources

Groundwater environmental DNA metabarcoding reveals hidden diversity and reflects land‐use and geology

Molecular Ecology, Volume 32, Issue 13, Page 3497-3512, July 2023., 2023
Abstract Despite being the most important source of liquid freshwater on the planet, groundwater is severely threatened by climate change, agriculture, or industrial mining. It is thus extensively monitored for pollutants and declines in quantity. The organisms living in groundwater, however, are rarely the target of surveillance programmes and little ...
Marjorie Couton, Samuel Hürlemann, Angela Studer, Roman Alther, Florian Altermatt   +4 more
wiley   +1 more source

Preliminary investigation of effects of copper on a terrestrial population of the antarctic rotifer Philodina sp.

, 2022
Terrestrial microinvertebrates in Antarctica are potentially exposed to contaminants due to the concentration of human activity on ice-free areas of the continent.
McCarthy, JS, Nielsen, UN, Brown, KE, Wallace, SMN, Allinson, G, King, CK, Reichman, SM   +6 more
core   +2 more sources

Fine structure of the retrocerebral organ in the rotifer Trichocerca similis (Monogononta)

Invertebrate Biology, Volume 142, Issue 1, March 2023., 2023
Abstract The retrocerebral organ (RCO) is a complex glandular system that is widely distributed across species of phylum Rotifera (sensu stricto). This system is hypothesized to secrete mucus that aids in benthic locomotion, adhesion, and/or reproduction.
Rick Hochberg, Thiago Q. Araújo, Elizabeth J. Walsh, Jonathon E. Mohl, Robert L. Wallace   +4 more
wiley   +1 more source

Reduced ageing in the frozen state in the tardigrade Milnesium inceptum (Eutardigrada: Apochela)

Journal of Zoology, Volume 318, Issue 4, Page 253-259, December 2022., 2022
Tardigrades were subjected to subzero temperature treatment by cooling on agar plates from room temperature down to ‐30°C. The specimens were kept for seven days at ‐30°C without temperature fluctuations, after which the animals were allowed to slowly warm. Live and dead animals were recorded after thawing.
J. Sieger, F. Brümmer, H. Ahn, G. Lee, S. Kim, R. O. Schill   +5 more
wiley   +1 more source

Food niches of planktonic rotifers: Diversification and implications

Limnology and Oceanography, Volume 67, Issue 10, Page 2218-2251, October 2022., 2022
Abstract The diverse diets of common planktonic rotifers are described in detail from field and laboratory observations and experiments. Also considered are methodological approaches, rotifer feeding mechanisms, and the availability in natural waters of less well‐known food items (detritus, picoplankton, protozoans).
John J. Gilbert
wiley   +1 more source

Genetic differentiation and phylogeography of rotifer Polyarthra dolichoptera and P. vulgaris populations between Southeastern China and eastern North America: High intercontinental differences

Ecology and Evolution, Volume 12, Issue 5, May 2022., 2022
Oceanographic barriers affect the phylogeographic pattern of rotifers in continental waters and maintaining genetic diversity in nature. The divergence indicates that gene flow between eastern North America and Southeastern China is limited while that within eastern North America or Southeastern China was higher.
Diwen Liang, George B. McManus, Qing Wang, Xian Sun, Zhiwei Liu, Senjie Lin, Yufeng Yang   +6 more
wiley   +1 more source

Culturing live foods for fish larviculture using non‐microalgal diet: The role of waste‐generated bacteria and selected commercial probiotics—A review

Aquaculture, Fish and Fisheries, Volume 2, Issue 2, Page 71-81, April 2022., 2022
Abstract Condensed suspension of live microalga cells, for example, Chlorella vulgaris, Nannochloropsis oculata and Tetraselmis tetrathele is often utilized as diets for mass production of live food resources, that is, rotifers, copepods, cladocerans and Artemia. These live food resources are essential for fish larviculture in hatcheries.
Robert Nesta Kagali, Erick Ochieng Ogello, Catherine Wachera Kiama, Hee‐Jin Kim, Stenly Wullur, Yoshitaka Sakakura, Atsushi Hagiwara   +6 more
wiley   +1 more source

FIGURE 5. Philodina hongcheonensis n in Descriptions of Philodinavus koreanus n. sp. and two new species of Philodina (Rotifera, Bdelloidea) from Korea

, 2022
FIGURE 5. Philodina hongcheonensis n. sp. (a) creeping, dorsal view; (b) feeding, dorsal view; (c) foot, spurs and toes, dorsal view (scale bars: a–b = 50 μm; c = 10 μm).Published as part of Song, Min Ok & Lee, Chang-Ho, 2022, Descriptions of ...
Song, Min Ok, Lee, Chang-Ho
core   +1 more source

Molecular identification of seed‐feeding flies dissected from herbarium specimens clarifies the 100‐year history of parasitism by Japanagromyza tokunagai in Japan

Ecological Research, Volume 37, Issue 2, Page 240-256, March 2022., 2022
Seed‐feeding fly tissues (coarctate pupa; a, c, or puparium; b, d) were dissected from Japanese orchid fruits specimens kept in herbarium and molecularly identified using 660 bp (a, b) or 162 bp (c, d) amplicon of cytochrome oxidase subunit 1 barcoding region.
Yumi Yamashita, Yuki Ogura‐Tsujita, Nobuaki Nagata, Takahide Kurosawa, Tomohisa Yukawa   +4 more
wiley   +1 more source