Possible causes of a substantial decline in sightings in South Africa of an ecologically important apex predator, the white shark

Autor:	Robin Fisher
Jazyk:	angličtina
Rok vydání:	2021
Předmět:	marine predators marine conservation bycatch Carcharadon carcharias KwaZulu-Natal Gansbaai Science Science (General) Q1-390 Social Sciences Social sciences (General) H1-99
Zdroj:	South African Journal of Science, Vol 117, Iss 1/2 (2021)
Druh dokumentu:	article
ISSN:	1996-7489
DOI:	10.17159/sajs.2021/8101
Popis:	A decline in sightings of a top predator, the white shark (Carcharadon carcharias), in South Africa was quantified in order to identify possible causes for this decline. White shark sightings data across 8 years (2011–2018), recorded from a cage-diving vessel in Gansbaai are reported. A significant decline in mean total white shark sightings per boat trip (>6 in 2011 to
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/7c4405bd449441f587544d0d6f3c978f Zobrazit plný text záznamu View record in DOAJ Plný text ve formátu PDF