ISSN:
1573-5117
Keywords:
abundance
;
migration
;
landings
;
penaeid shrimp
;
Metapenaeus affinis
;
Iraq
;
Shatt Al-Arab
;
Arabian Gulf
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Migration of Metapenaeus affinis (H. Milne-Edwards) from the Arabian Gulf to nursery grounds in the inland waters of Iraq extends from May/June to January/February. Shrimp ranging in size from 3–125 mm total length were found in inland waters. In the shallow waters of the Al-Assaflya small-sized shrimp only were caught, while in the Marshes large-sized shrimp were abundant. Maximum numbers of recruits were recorded when temperatures reached 23–25 °C. However, the discharge of the Shatt Al-Arab may also be an important factor regulating recruitment. The growth rates of small shrimp were higher than those of large ones. There mostly was, a preponderance of females over males. Spawning at sea appears to occur immediately after emigration. Gonad development was not observed. Commercial landings, at the two main fish markets at Basrah, during September–November 1985 averaged 1000 kg day−1.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00008895
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