Humpback whale mother-calf health assessed using drone tech
4 天之前 · Reading time: 3 minutes A mother-calf pair in the calm, shallow waters of Maui. (Photo credit: Martin van Aswegen, MMRP; NMFS permit 21476). University of Hawaiʻi at Mānoa Hawaiʻi Institute of Marine Biology biologists used drone imagery to understand how nursing humpback whale mothers and their calves fare as they cross the Pacific Ocean. Recent declines in North Pacific humpback whale ...
Humpback whale mother-calf health assessed using drone tech
3 天之前 · Recent declines in North Pacific humpback whale reproduction and survival of calves highlight the need to understand how mother-calf pairs expend energy across their migratory cycle. The study was ...
Using drones, researchers assess the health of humpback whale …
2 天之前 · Biologists used drone imagery to understand how nursing humpback whale mothers and their calves fare as they cross the Pacific Ocean. Recent declines in North Pacific humpback whale reproduction ...
Humpback Whale - NOAA Fisheries
2024年11月26日 · In the North Pacific, some humpback whales migrate from Alaska to Hawaiߵi—they can complete the 3,000 mile trip in as few as 28 days. While calving, they prefer shallow, warm waters commonly near offshore reef systems or shores. Humpback whale feeding grounds are generally in cold, productive waters.
Maternal investment, body condition and calf growth in humpback whales …
2024年12月12日 · Given recent declines in North Pacific humpback whale (Megaptera novaeangliae) reproductive output and calf survival, there is additional urgency to better understand how mother–calf pairs allocate energy resources across their migratory cycle.
Hear How Baby Humpback Whales Burp and Bark to Beg for Food
3 天之前 · Newborn humpback whales can measure more than 15 feet from nose to tail fluke and weigh as much as full-grown giraffes. But these hefty calves still need to pack on the pounds quickly to reach ...
Using drones, UH researchers assess the healt | EurekAlert!
4 天之前 · Recent declines in North Pacific humpback whale reproduction and survival of calves highlight an urgent need to understand how mother-calf pairs expend energy across their migratory cycle.
Characterising resting patterns of mother-calf humpback whale …
2023年9月7日 · Humpback whale mother-calf pairs in Jervis Bay travel at slower speeds, with less directed movements compared to groups travelling offshore on the southern migration.
Time budget and behavioral synchrony of humpback whale mother‐calf ...
2024年4月15日 · We investigated the time budget of humpback whale mother-calf pairs and evaluated their behavioral synchrony by focusing on their swimming speed. We used multisensor tag data sets, including one of the most extensive multisensor tag …
Wildlife Fact Sheets: Humpback whale - Ocean Conservancy
Humpback whales reach sexual maturity between four and 10 years old, after which females birth a calf once every couple of years. Calves are between 13 and 16 feet long when they’re born and double their length after just one year.