Species | Sphyrna zygaena |
---|---|
Superorder | Galeomorphii |
Order | Carcharhiniformes |
Subclass | Elasmobranchii |
Family | Sphyrnidae |
IUCNcode |
Source observation | other |
---|---|
General data type | nCPUE |
Unit | individual per km.net |
Unit freeform | |
Unit transformation | |
Sampling Method general | gillnet,line |
Year | Value |
---|---|
1978 | 0.4444 |
1979 | 1.0165 |
1980 | 3.79 |
1981 | 0.494 |
1982 | 0.1049 |
1983 | 0.6602 |
1984 | 0.888 |
1985 | 0.8656 |
1986 | 0.9904 |
1987 | 0.6569 |
1988 | 0.5568 |
1989 | 0.3733 |
1990 | 1.0593 |
1991 | 0.8786 |
1992 | 1.0395 |
1993 | 1.717 |
1994 | 2.3614 |
1995 | 2.7917 |
1996 | 0.6944 |
1997 | 0.6943 |
1998 | 0.7941 |
1999 | 0.7079 |
2000 | 1.0022 |
2001 | 0.8519 |
2002 | 0.9602 |
2003 | 2.185 |
2004 | 1.6682 |
2005 | 1.1014 |
2006 | 0.5234 |
2007 | 0.2789 |
2008 | 0.6926 |
2009 | 0.423 |
2010 | 0.6505 |
2011 | 0.5032 |
2012 | 0.6698 |
2013 | 0.539 |
2014 | 0.8361 |
Ocean | Indian |
---|---|
Name | Kwazulu-Natal coast South-Africa |
Latitude | -30.1 |
Longitude | 31.2 |
PPOW | |
---|---|
MEOW | Agulhas |
FAO | Indian Ocean, Western |
ID | 6182 |
---|---|
Author | |
AuthorYear | dicken2018 |
Title | |
Journal | |
Volume | |
Part/Supplement | |
Issue | |
Pages | |
Start Page | |
Errata | |
Epub Date | |
SourceYear | 2018 |
DataSource | Shark-references |
doi | 10.2989/1814232x.2018.1470031 |
Reference | DICKEN, M.L. & WINKER, H. & SMALE, M.J. & CLIFF, G. (2018) Sharks caught in the KwaZulu-Natal bather protection programme, South Africa. 14. The smooth hammerhead shark Sphyrna zygaena (Linnaeus). African Journal of Marine Science, 40 (2): 157-174 |
data entered | false |
Identifier | 4177 |
---|---|
Comments | The CPUE value for 1980 (3.79) was excluded from the Red List assessment (see rationale) |
Experts for representativeness | IUCN Pelagic sharks and rays - Dallas Nov 2018 |
Figure Name | |
Page and Figure Number | p162f3 |
Line Used | Observed |
PDF Page |