نتایج جستجو برای: endangered fish
تعداد نتایج: 117273 فیلتر نتایج به سال:
Assessment of instream structures for habitat improvement for two critically endangered fish species
Anecdotal evidence suggests that burrowing owls have declined in Washington. The Washington Department of Fish and Wildlife is currently conducting a status review for burrowing owls which will help determine whether they should be listed as threatened or endangered in the state. To provide insights into the current status of burrowing owls (Athene cunicularia) , we analyzed data from the North...
ogist, and ethnobiologist. She is cofounder and President of Terralingua: Partnerships for Linguistic and Biological Diversity. Terralingua is an international NGO based in Washington, DC, devoted to supporting the world’s linguistic diversity and to exploring the links between linguistic, cultural, and biological diversity, through research, information, education, and policy. She is editor of...
The present study explored the embryonic and larval development of an endangered fish species Nandus nandus and resolved larval growth performances with the dietary supplementation of different types of lipids. Fertilized eggs were collected from fiber glass tanks immediately after spontaneous spawning of N. nandus, which were fed with a 1% phospholipid (squid meal) supplemented diet for 3 mont...
Essential fish habitats (EFHs) are critical for life-history events, including spawning, breeding, feeding or growth. This study provides evidence of EFHs the critically endangered flapper skate (Dipturus intermedius) in waters around Orkney Isles, Scotland, based on citizen-science observation data. The potential egg-laying sites were parametrised as >20 m depth, with boulders exposed bedrock,...
Long-term survival despite low genetic diversity in the critically endangered Madagascar fish-eagle.
The critically endangered Madagascar fish-eagle (Haliaeetus vociferoides) is considered to be one of the rarest birds of prey globally and at significant risk of extinction. In the most recent census, only 222 adult individuals were recorded with an estimated total breeding population of no more than 100-120 pairs. Here, levels of Madagascar fish-eagle population genetic diversity based on 47 m...
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