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193 results for ‘Sharks’
Members of the subclass of fishes collectively known as elasmobranchs (Class Chondrichthyes, Subclass Elasmobranchii) include sharks, skates, rays, guitarfish, and sawfish. Having diverged from the main line of vertebrate evolution...
Measuring the metabolic rate of animals is an essential part of understanding their ecology, behaviour and life history. Respirometry is the standard method of measuring metabolism in fish, but different respirometry methods and systems...
Researchers from Mote Marine Laboratory, Florida International University, University of Miami and many scientists across the globe have discovered two areas of concern after analyzing small shark fins...
A hammerhead shark species discovered by scientists finally has a name and its namesake is the late Paul G. Allen, philanthropist and co-founder of Microsoft. The existence of the new species, Sphyrna alleni, was hidden because...
Epaulette Sharks are known for their ability to "walk" on the ocean floor using their pectoral and pelvic fins, which is unique among sharks. They prefer hiding in crevices and caves during the day and are more active at night when...
Coral catsharks have color-changing abilities that allow them to adapt to different environments— from sandy sea floors to coral reefs. These sharks are mostly nocturnal, hunting for small fish and invertebrates at night.They...
These sharks are named for the dark shading on the tip of their snout, which is more prominent in juveniles and fades with age. They have slender, yellowish-gray bodies with countershaded (paler) bellies.
Bonnethead sharks are grayish-brown with distinctive shovel-shaped heads. During migration, they often travel in large schools, sometimes numbering in the hundreds or thousands!
Zebra sharks get their name from the coloration they exhibit as juveniles. Juvenile zebra sharks have brown and white stripes, but as they get older, their pattern lightens to become tan with dark brown leopard-like spots. The upper...
Sand tiger sharks have an intimidating appearance, with rows of long, needle-like teeth visible even when their mouth is closed. Despite their fierce look, they are slow-moving and docile toward humans....
The swell shark is a small, nocturnal species of shark. They have large mouths, extending past their eyes. Swell sharks have a broad head and stout body. They are a yellowish brown color, with a pattern of large dark blotches and...
Whitetip reef sharks are a smaller species of shark, with grayish brown coloration and a distinctive white tip on their dorsal and caudal (tail) fins. They are a mostly nocturnal species, and are often found resting on the seafloor...
Silky sharks have long, slender bodies, with a dark gray or bronze coloration and white belly. They have a distinctive rounded dorsal fin, and a rounded snout. Their dermal denticles, similar to scales, are tightly packed and overlapping,...
It is assumed that complex life cycles in cnidarian parasites belonging to the Myxozoa result from incorporation of vertebrates into simple life cycles exploiting aquatic invertebrates. However, nothing is known about the driving forces...
Although white sharks (Carcharodon carcharias) have been considered rare in Atlantic Canada waters, recent sighting records indicate a potentially increasing presence. We combine historical to present sighting data with satellite telemetry...
Results from published age and growth models for bonnetheads (Sphyrna tiburo) indicate significant differences in life history between populations in the eastern Gulf of Mexico (GOM) and those in estuarine waters of the Atlantic coast...
Our global analysis estimated the overlap and fishing exposure risk (FEI) using the space use of satellite-tracked sharks and longline fishing effort monitored by the automatic identification system (AIS). In the accompanying Comment,...
Our previously published paper provided global fine-scale spatiotemporal estimates (1° × 1°; monthly) of overlap and fishing exposure risk (FEI) between satellite-tracked shark space use and automatic identification system (AIS)...
Natural mortality, M, is a key parameter for the assessment and management of living resources but is difficult to observe directly. Therefore, M is often estimated indirectly from life history traits, and it is typically assumed to...
. While extreme climatic events (ECEs) are predicted to become more frequent, reliably predicting their impacts on consumers remains challenging, particularly for large consumers in marine environments. Many studies that do evaluate...
Thriving coastal and Gulf environments that support wild and human lives. Sustainable fisheries for recreation and sustenance. Knowing where (and how) juvenile sea turtles travel when they leave Florida beaches and how they are impacted...
The venom-containing barb attached to their ‘whip-like’ tail provides stingrays a defensive mechanism for evading predators such as sharks. From human encounters, dermal stingray envenomation is characterized by intense pain often...
Shark meat and fin soup are seafood commodities exported and consumed worldwide. Because sharks are large and slowgrowing marine predators they tend to accumulate a large amount of mercury in the form of methylmercury. Due to this...
Oceanic whitetip sharks Carcharhinus longimanus aggregate at Columbus Point, Cat Island, The Bahamas, in at least April and May. We show that signs of putative mating activity (i.e. bite wounds) on mature females, which dominate the...
The Bull Shark (Carcharhinus leucas) faces varying levels of exploitation around the world due to its coastal distribution. Information regarding population connectivity is crucial to evaluate its conservation status and local fishing...
Shark fishing is increasingly regulated in the Caribbean region. We present new information on the characteristics, landings, species composition, and size composition of the shark fishery of Puerto Rico, a U.S. Caribbean territory,...
Krystan Wilkinson is a postdoctoral scientist employed by the Chicago Zoological Society and based at Mote Marine Laboratory as part of a partnership to engage in dolphin research, education and conservation action. Wilkinson is...
By the age of ten Leah knew she wanted to be a marine biologist. She attended Ohio University where she majored in marine, freshwater and environmental biology and completed an internship in Clearwater as a water quality technician...
Dr. Robert (Bob) Hueter is a Mote Senior Scientist Emeritus and was the first Director of Mote's Center for Shark Research and the first recipient of Mote's Perry W. Gilbert Chair in Shark Research. The Mote CSR is a national research...
Averi has volunteered with Mote since 2019 and interned with the Mammal and Reptile Department during the winter (2022-2023). In between when she started volunteering and her internship, she got a Master...