Results 101 to 110 of about 402 (132)
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Animal Conservation
AbstractEcotourism is branded as transforming wildlife biodiversity conservation; yet, its positive and negative effects are not always assessed in wild populations. Wildlife viewing with feeding is a popular form of ecotourism, but its potential health impacts on wildlife are becoming increasingly evident. Shark feeding is a global phenomenon; however,
Suzanne C Mills, Johann Mourier
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AbstractEcotourism is branded as transforming wildlife biodiversity conservation; yet, its positive and negative effects are not always assessed in wild populations. Wildlife viewing with feeding is a popular form of ecotourism, but its potential health impacts on wildlife are becoming increasingly evident. Shark feeding is a global phenomenon; however,
Suzanne C Mills, Johann Mourier
exaly +2 more sources
2023
On the island of Moorea, French Polynesia, tourism operators have engaged in consistent elasmobranch provisioning at specific sites since the 1990s, conditioning the area’s shark and ray populations to human feeding and developing profitable lagoon tours based on close-contact elasmobranch encounters.
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On the island of Moorea, French Polynesia, tourism operators have engaged in consistent elasmobranch provisioning at specific sites since the 1990s, conditioning the area’s shark and ray populations to human feeding and developing profitable lagoon tours based on close-contact elasmobranch encounters.
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Molecular Biology Reports, 2023
Shark species are overfished at a global scale, as they are poached for the finning industry or are caught as bycatch. Efficient conservation measures require fine-scale spatial and temporal studies to characterize shark habitat use, infer migratory habits, analyze relatedness, and detect population genetic differentiation.
Kim B. Eustache +3 more
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Shark species are overfished at a global scale, as they are poached for the finning industry or are caught as bycatch. Efficient conservation measures require fine-scale spatial and temporal studies to characterize shark habitat use, infer migratory habits, analyze relatedness, and detect population genetic differentiation.
Kim B. Eustache +3 more
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Comparative Biochemistry and Physiology A, Comparative Physiology, 1995
The innervation of the branchial vasculature of the blacktip reef shark, Carcharhinus melanopterus, appears similar to that described for other elasmobranchs, Isolated perfused gill arch preparations were used in a study of vascular responses to branchial nerve stimulation.
CHOPIN, LK, BENNETT, MB
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The innervation of the branchial vasculature of the blacktip reef shark, Carcharhinus melanopterus, appears similar to that described for other elasmobranchs, Isolated perfused gill arch preparations were used in a study of vascular responses to branchial nerve stimulation.
CHOPIN, LK, BENNETT, MB
exaly +5 more sources
Journal of Morphology, 1976
AbstractThe inferior lobes of the shark hypothalamus were examined with light, transmission and scanning electron microscopy. The cells bordering the floor of the lateral recess appear to be typical liquor‐contacting neurons. With scanning electron microscopy (SEM) the apical ends of these cells are seen to bulge into the ventricular lumen. In contrast,
A P, Evan, L C, Saland, L S, Demski
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AbstractThe inferior lobes of the shark hypothalamus were examined with light, transmission and scanning electron microscopy. The cells bordering the floor of the lateral recess appear to be typical liquor‐contacting neurons. With scanning electron microscopy (SEM) the apical ends of these cells are seen to bulge into the ventricular lumen. In contrast,
A P, Evan, L C, Saland, L S, Demski
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An Observation of Mating in Free-Ranging Blacktip Reef Sharks, Carcbarbinus melanopterus
Pacific Science, 2010Abstract: We describe the mating behavior of free-ranging Blacktip Reef Sharks, Carcharhinus melanopterus, at Palmyra Atoll. This is the first primary report of mating in C. melanopterus and the first direct observation of mating for an obligate swimming shark species.
McCauley, Douglas J. +2 more
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Aquatic Conservation: Marine and Freshwater Ecosystems, 2013
ABSTRACTConnectivity between coastal habitats and mid‐shelf and offshore coral reefs is a topical issue in the conservation and management of fishes and coastal ecosystems.Coastal habitats provide a range of ecosystem functions for sharks and rays and the use of coastal ecosystems by these species affects conservation and management outcomes.
Chin, A. +3 more
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ABSTRACTConnectivity between coastal habitats and mid‐shelf and offshore coral reefs is a topical issue in the conservation and management of fishes and coastal ecosystems.Coastal habitats provide a range of ecosystem functions for sharks and rays and the use of coastal ecosystems by these species affects conservation and management outcomes.
Chin, A. +3 more
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Journal of Fish Biology, 2013
During a survey of the population of blacktip reef shark Carcharhinus melanopterus in Moorea (French Polynesia) between 2007 and 2011, population structural characteristics were estimated from 268 individuals. Total length (LT) ranged from 48 to 139 cm and 48 to 157 cm for males and females, respectively, demonstrating that the average LT of females ...
J, Mourier, S C, Mills, S, Planes
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During a survey of the population of blacktip reef shark Carcharhinus melanopterus in Moorea (French Polynesia) between 2007 and 2011, population structural characteristics were estimated from 268 individuals. Total length (LT) ranged from 48 to 139 cm and 48 to 157 cm for males and females, respectively, demonstrating that the average LT of females ...
J, Mourier, S C, Mills, S, Planes
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Journal of Fish Biology, 2013
This study examined the characteristics of a blacktip reef shark Carcharhinus melanopterus population in turbid coastal habitats through a multi‐year fishery‐independent sampling and tag–recapture programme. Results revealed a highly structured population comprised almost entirely of juveniles and adult females with individuals between 850 and 1050 mm ...
Chin, A. +3 more
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This study examined the characteristics of a blacktip reef shark Carcharhinus melanopterus population in turbid coastal habitats through a multi‐year fishery‐independent sampling and tag–recapture programme. Results revealed a highly structured population comprised almost entirely of juveniles and adult females with individuals between 850 and 1050 mm ...
Chin, A. +3 more
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Suspected intestinal torsion in a blacktip reef shark (Carcharhinus melanopterus).
Journal of zoo and wildlife medicine : official publication of the American Association of Zoo Veterinarians, 1999A blacktip reef shark (Carcharhinus melanopterus) with a history of recurrent eversion or prolapse of the valvular intestine, arrived at the Steinhart Aquarium in June 1996 and was placed in a mixed species shark display. The eversion soon reappeared, and the animal became thin and anorexic.
P, Morales, F, Dunker
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