Consulta: subjectFacets:"Whaling"
Registros recuperados: 3
Data/hora: 09/06/2024 13:36:34

Searching for humpback whales in a historical whaling hotspot of the Coral Sea, South Pacific
Provedor de dados: 5
Autores: Garrigue, C; Derville, S; Bonneville, C; Baker, Cs; Cheeseman, T; Millet, Laurent; Paton, D; Steel, D.
Humpback whales Megaptera novaeangliae were severely depleted by commercial whaling. Understanding key factors in their recovery is a crucial step for their conservation worldwide. In Oceania, the Chesterfield-Bellona archipelago was a primary whaling site in the 19th century, yet has been left almost unaffected by anthropogenic activities since. We present the results of the first multidisciplinary dedicated surveys in the archipelago assessing humpback whale populations 2 centuries post-whaling. We encountered 57 groups during 24 survey days (2016-2017), among which 35 whales were identified using photographs of natural markings (photo-ID), 38 using genotyping and 22 using both. Humpback whales were sparsely distributed (0.041 whales km-1): most...
Tipo: Text
Palavras-chave: Chesterfield-Bellona archipelago; Connectivity; Coral Sea; Habitat use; Humpback whale; Satellite tracking; Sex ratio; Whaling.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00632/74454/74267.pdf

Bio-écologie des cétacés et enjeux de leur conservation pour les Etats côtiers africains comme le Sénégal
Provedor de dados: 20
Autores: Ndao, Ibrahima.
Tipo: Theses and Dissertations
Palavras-chave: Whaling; Anatomy; Morphology (biology); Physiology (fish); Preservation (fishery products); Biodiversity; Baleens; Migrations; Reproductive cycle; Fish consumption; Overfishing; Pollution.
Ano: 2006
URL: http://hdl.handle.net/1834/5005

ECONOMICS AND THE RESUMPTION OF COMMERCIAL WHALING
Provedor de dados: 31
Autores: Conrad,   Jon M.; Bjorndal,   Trond.
There is now strong scientific evidence that several species of baleen whale and possibly the sperm whale, have recovered to levels that would support commercial harvest. The stock of fin whales (Balaenoptera physatus) off the eastern coast of Iceland and the minke whale (Balaenoptera acutorostrata) in the Northeast Atlantic, off the coast of Japan and in the Southern Ocean are prime candidates for commercial harvest. Should commercial whaling be resumed? If so, what role should economics play in determining the level of harvest and management policies?  A bioeconomic model for baleen whales is developed and applied to the stock of minke whales in the Northeast Atlantic. A delay-difference equation is used to model the population dynamics and an...
Tipo: Working or Discussion Paper
Palavras-chave: Economics; Whaling; Rnlnke abide; Resource /Energy Economics and Policy.
Ano: 1991
URL: http://purl.umn.edu/7269