Results 61 to 70 of about 519,530 (231)

Freshwater Stingray Embryos Store Yolk in Their Intestinal Epithelial Cells [PDF]

, 2016
Intestines of freshwater stingray embryos sampled in South America were examined histologically. During embryonic development, yolk, which is transported through the yolk stalk from the external yolk sac, appeared to be accumulating in the intestinal ...
テシマ, カズユキ, Tomonaga, Susumu, Teshima, Kazuyuki, トモナガ, ススム, 手島, 和之, 友永, 進   +5 more
core  

Stingray venom activates IL-33 producing cardiomyocytes, but not mast cell, to promote acute neutrophil-mediated injury

Scientific Reports, 2017
One of the hallmarks of acute inflammation is neutrophil infiltration of tissues. We investigated molecular mechanisms implicated in acute neutrophilic inflammation induced by the venom of a freshwater stingray (Potamotrygon cf. henlei) in mice.
Janaina Cardoso dos Santos, Lidiane Zito Grund, Carla Simone Seibert, Elineide Eugênio Marques, Anderson Brito Soares, Valerie F. Quesniaux, Bernhard Ryffel, Monica Lopes-Ferreira, Carla Lima   +8 more
doaj   +1 more source

Livelihood Assets Analysis of Freshwater Stingray Fishermen in Musi River, Palembang City, South Sumatera

Economic and Social of Fisheries and Marine Journal
Freshwater stingrays play a crucial role in the ecological and economic functions of the Musi River. Their existence in the Musi River is threatened by both natural and human factors.
Nabila Nur Septiani, Pini Wijayanti, Sahaya Aulia Azzahra, Lailatun Nikmah   +3 more
semanticscholar   +1 more source

A Review of Nonsteroidal Anti‐Inflammatory Drugs for Food‐Producing Animals With a Focus on Potential Applications for Farmed Finfish

Journal of Fish Diseases, Volume 49, Issue 10, October 2026.
ABSTRACT In finfish aquaculture, there are several inflammatory diseases impacting productivity and animal welfare, however there are limited options available to veterinarians to treat inflammation and pain in fish. Nonsteroidal anti‐inflammatory drugs (NSAIDs) are widely used in terrestrial animals raised for human consumption to treat a range of ...
Chloe J. English, Christine Huynh, William Roy, James W. Wynne, Hamish Rodger   +4 more
wiley   +1 more source

Reconnaissance Investigation of Sedimentation Patterns in a Small Modern Anthropogenically Influenced Inlet, Otūwhero Estuary, Abel Tasman National Park, New Zealand

New Zealand Journal of Marine and Freshwater Research, Volume 60, Issue 3, September 2026.
The structurally controlled Otūwhero estuary on the SE boundary of Abel Tasman National Park is a small partially filled incised valley. The small size, limited number of fluvial inputs, accessibility and surrounding land use made it an ideal candidate on which to investigate potential climate‐induced estuarine behaviour. Surficial sediment samples and
Mark J. F. Lawrence, Henry J. L. Gard, Barbara Lyndsell, Salman Ashraf, Steven Rosenberg   +4 more
wiley   +1 more source

The feasibility of developing multi-taxa indicators for landscape scale assessment of freshwater systems [PDF]

, 2011
The use of bird assemblages as wetland indicators is now well established in the UK.  An indicator based on a single taxonomic group can, however, have limitations.  Conversely, a multi-taxa approach can potentially provide a more robust ...
Michael Dobson; Freshwater Biological Association, Melanie Suzanne Fletcher; Freshwater Bological Association, Anne Powell; Freshwater Biological Association, Mark Everard; Environment Agency   +3 more
core   +12 more sources

On the liver tissue of freshwater stingrays and balloonfish.

NIPPON SUISAN GAKKAISHI, 1985
Using the freshwater stingrays Potamotrygon spp. and the balloonfish Diodon holacanthus, an investigation was carried out on the liver size and the amount of fat droplets in hepatocytes and the following results were obtained. The liver of the stingrays was relatively small in size among Chondrichthyes and the value of hepatosomatic index (HSI) on six ...
openaire   +2 more sources

CITES Appendix III: An underused tool for international wildlife trade regulation

Conservation Science and Practice, Volume 8, Issue 9, September 2026.
Appendix III of CITES allows Parties to unilaterally extend domestic species protections to international trade, yet it remains vastly underused, covering just 1.3% of listed species. Drawing on the complete historical record since 1975, we show that Appendix III is most effective for endemic species and functions as a highly successful staging ...
Freyja Watters, Phillip Cassey
wiley   +1 more source

Morphology of the Digestive Tube of the Amazonian Freshwater Stingray Potamotrygon wallacei (Elasmobranchii: Potamotrygonidae): A Stereological Approach

Journal of morphology
This work aimed to describe and quantify the tissue components of the digestive tube of the neotropical freshwater stingray, Potamotrygon wallacei. For this, conventional histology and stereological methods were used to estimate tissue volume.
R. Machado, W. Duncan
semanticscholar   +1 more source

Environmental DNA Reveals Distinct Regions of Extraordinary Marine Biodiversity to Inform a Newly Established Marine Park—Exmouth Gulf, Western Australia

Diversity and Distributions, Volume 32, Issue 9, September 2026.
ABSTRACT Aim Exmouth Gulf, Western Australia, is a globally significant refuge for many marine megafauna species. The recent designation of a marine park in Exmouth Gulf underscores its environmental, social and cultural significance but remains a site of competing interests.
Jessica R. Pearce, Marcelle Ayad, Sallyann Gudge, Karissa Lear, Rebecca L. Bateman‐John, Matthew W. Fraser, Bianca Graham, Joshua L. Bonesso   +7 more
wiley   +1 more source