Does damming of the Colorado River affect the nursery area of blue shrimp Litopenaeus stylirostris (Decapoda: Penaeidae) in the Upper Gulf of California?
Rev. biol. trop
;
48(4): 867-871, Dec. 2000.
Article
Dans Anglais
| LILACS
| ID: lil-320115
ABSTRACT
After damming the Colorado River the freshwater flow was reduced to 1 of its virgin flow to the Upper Gulf of California (UGC). The ecological effects need to be properly documented. The UGC is the nursery area for Litopenaeus stylirostris, the most profitable fishery in the zone. In order to know the relative abundance of L. stylirostris postlarval stage we conducted a sampled survey every 14 days in 1993, 1994 and 1997, plus an intensive sampling during a complete tide cycle in July 1995 and 1996. We did 10 min trawls each hour during the flood tide. Relative abundance of postlarvae was higher (p < 0.05) in those years when freshwater flow reached the UGC.
Texte intégral:
Disponible
Indice:
LILAS (Amériques)
Sujet Principal:
Decapoda (crustacea)
/
Eau douce
Limites du sujet:
Animaux
Pays comme sujet:
Mexico
langue:
Anglais
Texte intégral:
Rev. biol. trop
Thème du journal:
Biologie
/
Médecine tropicale
Année:
2000
Type:
Article
Pays d'affiliation:
Mexique
Institution/Pays d'affiliation:
Centro de Investigación Científica y Educación Superior de Ensenada/MX
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