Penelitian ini bertujuan untuk mengetahui pengaruh pemotongan organ tubuh udang lobster yang terbaik terhadap persentase moulting dan kelangsungan hidup air tawar (Cherax quadricarinatus). dilaksanakna pada bulan April sampai dengan Juni 2020 di Labortaorium Akuakultur Fakultas Pertanian, Universitas Prof. Dr. Hazairin, SH Bengkulu. dilaksanakan selama 60 hari. Wadah digunakan berupa keranjang ...

How does a hovering hummingbird compensate for the loss of flight feathers during moult when the mechanism of lift force generation by flapping wings is impaired? The flight performance of five individual ruby-throated hummingbirds with moulting primary flight feathers and reduced wing area was compared with that before their moult. Hummingbirds were flown in reduced air densities using normoxi...

During the moulting process the tracheal system grows by the extension of new tracheae and tracheoles from the existing tubes. Outgrowths are produced by the active movements of the formative cells of the tracheal epithelium; these give out filiform 'amoeboid* processes which move into those regions most deficient in oxygen (Wigglesworth, 1954). Changes in the distribution of the tracheae can t...

Understanding the factors that drive dynamics of populations long‐lived species presents a unique challenge for conservation management. Here, we investigated long-term change in body condition adult northern rockhopper penguins Eudyptes moseleyi at Amsterdam Island, southern Indian Ocean, which hosts 5–10% global population this endangered species. Analysis long‐term dataset (1994–2016), concu...