Food habits of the smooth dogfish, Mustelus canis, dusky shark, Carcharhinus obscurus, Atlantic sharpnose shark, Rhizoprionodon terraenovae, and the sand tiger, Carcharias taurus, from the northwest Atlantic Ocean

Diet and feeding habits of the smooth dogfish, Mustelus canis, Atlantic sharpnose, Rhizoprionodon terraenovae, dusky, Carcharhinus obscurus, and the sand tiger, Carcharias taurus sharks, were investigated through analysis of stomach contents. Diet in M. canis was relatively homogeneous and was domin...

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Vydané v:Environmental biology of fishes Ročník 54; číslo 2; s. 205 - 217
Hlavní autori: Gelsleichter, James, Musick, John A., Nichols, Stephanie
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: Dordrecht Springer 01.02.1999
Springer Nature B.V
Predmet:
Animal and plant ecology
Animal, plant and microbial ecology
Biological and medical sciences
Cancer irroratus
Canis
Carcharhinus obscurus
Carcharias taurus
Crustaceans
Diet
Elasmobranchii
Food habits
Fundamental and applied biological sciences. Psychology
Marine
Mustelus canis
Prey
Rhizoprionodon terraenovae
Sand
Sea water ecosystems
Sharks
Shellfish
Synecology
Teleostei
North Atlantic
United States
North America
Virginia
Atlantic Ocean
America
ANW, Atlantic
A, Atlantic
Stomach
Interspecific comparison
Feeding
Marine environment
Prey
Vertebrata
Faunal survey
Diet
Pisces
Chondrichthyes
Invertebrata
Teleostei
Osteichthyes
Content analysis
Quantitative analysis
ISSN:0378-1909, 1573-5133
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Shrnutí:Diet and feeding habits of the smooth dogfish, Mustelus canis, Atlantic sharpnose, Rhizoprionodon terraenovae, dusky, Carcharhinus obscurus, and the sand tiger, Carcharias taurus sharks, were investigated through analysis of stomach contents. Diet in M. canis was relatively homogeneous and was dominated by crustaceans, consisting mostly of rock crabs, Cancer irroratus. Diet in R. terraenovae was more heterogeneous and consisted largely of crustaceans and teleosts, in similar levels of prey importance. Use of cumulative prey curves as a measure of precision indicated that data were insufficient to fully describe the diets of C. obscurus and C. taurus. Nonetheless, these data suggested that both species are generalized feeders and consume a variety of teleost and elasmobranch prey. Further studies are necessary to fully characterize diet in these two species.
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ISSN:0378-1909
1573-5133
DOI:10.1023/A:1007527111292