| dc.creator | Harris, Patrick J. | |
| dc.creator | McGovern, John C. | |
| dc.date.accessioned | 2013-08-22T14:12:51Z | |
| dc.date.available | 2013-08-22T14:12:51Z | |
| dc.date.issued | 1997 | |
| dc.identifier.uri | http://hdl.handle.net/10827/10547 | |
| dc.description | Aspects of the life history of red porgy from the South Atlantic Bight (SAB) were examined for four periods (1972-74, 1979-81, 1988-90, and 1991-94), and annual changes in the age and growth of red porgy were described for data collected during
1988-94. The life history of red porgy during 1972-74 was assumed to represent
that of an unfished population. although this population had been subject to light fishing pressure. From 1972-74 to 1979-81, the back-calculated size-at-age increased slightly for ages 2-8. By 1988-90 and 1991-94. however, the back-calculated size-at-age
for the same age classes was significantly smaller than that in 1979-81. In addition, size-at-maturity and size-at-sexual-transition occurred at progressively smaller sizes for 1988-90 and 1991-94. The mean size-at-age (observed and back-calculated) declined
for most ages between 1988 and 1994. Von Bertalanffy growth curves fitted to
the mean back-calculated size-at-age for each year showed similar decreasing
trends. Changes in life history may be a response to sustained 20-year
overexploitation that has selectively removed individuals predisposed towards
rapid growth and larger size. | |
| dc.format.medium | Document | |
| dc.language | English | |
| dc.publisher | South Carolina State Library | |
| dc.relation.ispartof | South Carolina State Documents Depository | |
| dc.rights | Copyright status undetermined. For more information contact, South Carolina State Library, 1500 Senate Street, Columbia, South Carolina 29201. | |
| dc.subject | Red porgy | |
| dc.title | Changes in the life history of red porgy, Pagrus pagrus, from the southeastern United States, 1972-1994 | |
| dc.type | Text | |
| sd.specifications | This South Carolina State Document was either saved from a document available publicly online in PDF format or converted to PDF using Adobe Acrobat X Professional. | |
