As the seas are heated, women Angelsharks give priority to survival in breeding, leaving their male … more
In the canary waters, women Angelsharks make a difficult choice: either skip the mating season or risk overheating overheating. New investigation It reveals that the rising ocean temperatures disturb the natural mating patterns of these threats threatened, possibly endangering the future of the species.
The study, led by scientists from the University of Lancaster and the Angel of Shark: Canary Islands, used acoustic monitoring to follow the movements of over 100 individual Angelsharks between 2018 and 2023. During these five years, the researchers found both La. From the lanzaroto every November and December.
But in 2022 the pattern broke.
It was in this year that an extreme marine wave of combustion pushed the temperatures of the surface of the sea above 74.8 ° F (23.8 ° C), with conditions remaining hot from 72.5 ° F (22.5 ° C) almost three times more than usual. This burning wave overlaps with the entire Angelsharks breeding season, which usually begins in late autumn when the waters are cooler. The result? While the male presence culminated in the timetable, female observations were rare. In fact, females have largely abandoned traditional mating areas of the species and the data showed a strong relationship between the activity of Angelshark women and the cooler water, suggesting that 72.5 ° F (22.5 ° C) may be close to their upper thermal limit.
Dr. David Jacoby, a key researcher from the University of Lancaster, likened these maritime burning to “ocean fires”, with extensive impacts to be understood. Why does this matter? Angelsharks, like most sharks, are resection, which means that their body temperature depends on the environment. Unlike males, who were determined to find a partner regardless of conditions, females may be more sensitive to temperature pins due to energy reproduction requirements. Transfer and development of young people requires a lot of metabolic regulation and excessive heat can push their physiology beyond a safe limit. Faced with the choice between breeding and self -preservation … Females seem to choose the latter. Jacoby noted that the observed behavioral differences between gender during extreme temperature events could have serious consequences for the species and lead the author of the study Dr. Lucy Mead, a researcher at this ZSL Institute of the Institute of Zoology and Lancaster,
Squatina Squatina, commonly known as Angelshark, is a kind of shark -threatened … more
Canary Islands represent one of the last forts for Angelsharks (Cannon), which were once widespread on all European coasts, but have now disappeared from much of their former range. Here, adults and young people still see regularly and the species has become a flagship for the local tourism diving industry. But even in this shelter, observations become less reliable. In just a few years, the number of hot days in the area increased steadily from 30 days over 72.5 ° F (22.5 ° C) in 2019 to 85 days in 2022. “Our concern is that the main areas can be inhospitable for females,” Mead said. “These findings have a significant impact on how we maintain this highly endangered species in a heating world.”
The team believes that conservation strategies must begin to produce factors in these behavior shifts, especially as extreme climate becomes more frequent and serious. And co-head Eva Meyers of the Leibniz Institute stressed that this research stresses why long-term monitoring of critical habitats such as the Canary Islands is so vital. “These findings are a reminder of how climate extremities are already reshaping the behavior of endangered marine species,” Meyers said, demanding more urgent protection of these areas, not only for Angelsharks but for the wider marine ecosystems they support. Angelsharks are ambushes predators that help maintain balance in coastal food tissues, so if their populations collapse, the results could be outward in unpredictable ways.
“It is important to understand how changes in the physicochemical conditions of the ocean can affect the [all] The species inhabited by coastal ecosystems, “agreed by Dr. David Jiménez Alvarado of the University of Las Palmas de Gran Canaria. Since many of these species are already threatened worldwide, studying the way in which their ecological -related strategies are needed. Endangered marine species such as Angelshark, which are already teetering on the rim, and even small behavior shifts can have great consequences.
As people focus on climate effects, it is easy to overlook what is going on under the waves. But the ocean is also heated – and quickly. Angelsharks are now doing, between mating and survival, reflect a threatening truth: marine life is adapted … but not always in ways that ensure its future. If we are serious about maintaining ocean biodiversity, we must pay attention to these warning signs and act before most species promote their limits.
