waters were relatively high because they had not been fished since shark liver oil was in high demand in the 1940's, with the exceptions of dusky sharks, Carcharhinus obscurus
, and oceanic whitetip sharks, Carcharhinus longimanus, which were taken incidentally in large numbers in Japanese tuna fisheries in the Gulf of Mexico in the 1960's.
is a particularly important typifying species for the gillnet samples and the same is true for the bycatch ray species Dasyatis brevicaudata for the longline samples.
A preliminary estimate of age and growth of the dusky shark Carcharhinus obscurus
from the South-West Indian Ocean, with comparisons to the Western North Atlantic population.
Sunfish Mola ramsayi -- Sharks and rays Bigeye thresher shark Alopias superciliosus 149 Blacktip shark Carcharhinus limbatus -- Blue shark Prionace glauca 31,503 Bronze whaler Carcharhinus brachyurus -- Crocodile shark Pseudocarcharias kamoharai -- Dog fishes Family Squalidae -- Dusky shark Carcharhinus obscurus
-- Grey reef shark Carcharhinus amblyrhynchos -- Hammerhead shark Sphyrna spp.
Shark species commonly caught in the pelagic longline fishery include the dusky, Carcharhinus obscurus
, night, C.
Age and growth of the dusky shark, Carcharhinus obscurus, in the western North Atlantic.
Growth rates of juvenile dusky sharks, Carcharhinus obscurus (Lesueur, 1818), from southwestern Australia estimated from tag-recapture data.
Atlantic distribution of tag and recapture locations for the dusky shark, Carcharhinus obscurus, from the NMFS Cooperative Shark Cooperative Shark Tagging Program during 1962-93.
Total tagging distribution for the dusky shark, Carcharhinus obscurus, from the NMFS Cooperative Shark Tagging Program during 1962-93.
Shark aging methods and age estimation of scalloped hammerhead, Sphyrna lewini and dusky, Carcharhinus obscurus
, sharks based on vertebral ring counts.
This trend has also been noted in large female Carcharhinus obscurus
(Natanson et al.
038 for dusky sharks, Carcharhinus obscurus
(Natanson et al.
A (Ssa) Stegostomatidae Stegostoma fasciatum (Sf) Rhincodontidae Rhinobatidae Rhinobatos typus (Rty) Rhynchobatidae Rhynchobatus djiddensis (Rd) Rhina ancylostoma (Ran) Recorded in bycatch Family No Carcharhinidae Carcharhinus amblyrhynchoides Carcharhinus amblyrhynchos Carcharhinus cautus Carcharhinus obscurus
Carcharhinus plumbeus Carcharias taurus Carcharinus falciformis Carcharinus melanopterus Loxodon macrorhinus Rhizoprionodon oligolinx Triaenodon obesus Dasyatidae Dasyatis fluviorum Taeniura lymma Ginglymostomatidae Gymnuridae Hemigaleidae Hemiscyllium ocellatum Hemiscyllium trispeculare Hemiscylliidae Mobulidae Manta birostris Mobula eregoodootenkee Myliobatidae Narcinidae Narcine sp.
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.
Abstract--Tagged neonate and small juvenile Carcharhinus obscurus
were released between March 1994 and June 1996 in southwestern Australia.