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| Titel |
Evaluation of the current state of small pelagic fisheries in the Colombian Pacific: ensuring the sustainability of the resource and evaluating its response to climatic events |
| VerfasserIn |
L. A. Zapata, B. S. Beltrán-León, J. C. Herrera, P. Jiménez-Tello, L. M. Prieto, R. A. Baos, C. Guevara-Fletcher, E. Zambrano |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7340
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| Digitales Dokument |
URL |
| Erschienen |
In: ENSO South America ; Nr. 33 (2013-04-02), S.63-68 |
| Datensatznummer |
250019082
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| Publikation (Nr.) |
 copernicus.org/adgeo-33-63-2013.pdf |
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| Zusammenfassung |
| Commercial fishing of small pelagic species in Colombia, mainly "carduma"
(Cetengraulis mysticetus) and "plumuda" (Opisthonema spp.),
has been recorded since 1970. Both are used to
produce fish meal for aquaculture and poultry and for canned foods. These
two species are filter feeders, and therefore support higher levels of the
food chain (other fish, birds and marine mammals), and artisanal fishermen
use them as bait. Between 2005 and 2010, 86.131 t have been captured
(X = 14.355 t yr−1), and a strong reduction was noticed in 2009
(6.969 t). Carduma is considered a total spawning species. However, from
1997 to 2000 and from 2008 to date, atypical reproductive behavior of the
species has been observed, including partition of the spawning period and
the reduction of the volume of eggs and larvae released to the environment.
Both situations are linked to thermal anomalies such as El Niño and La
Niña events. Therefore, the process of assigning the global quota of
extraction has been revised to take into account the reduction of total
capture during the last years and the inconsistencies of the reproductive
processes. The Ministry of Agriculture reduced the quota by 10%, leaving
available a total of 27 000 t for 2010 and reduced it again to 25 000 t for 2011. It
is important to maintain the management measures that are already
implemented on this resource (bans during reproduction seasons, catch quotas,
regulation of mesh sizes for the fishing nets, and limiting the number of
new vessels) and considering other measures such as season closure for
recruitment and establishment of marine protected areas to further
contribute to the sustainability of these fisheries. |
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