Environmental effects on recruitment of short-finned squid (Illex illecebrosus)
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چکیده
منابع مشابه
Bias associated with statolith-based methodologies for ageing squid; a comparative study on illex illecebrosus
Estimates of ages for short-finned squid (Illex illecebrosus LeSueur) were derived from two different methods for preparing statoliths and enumerating daily increments. Each pair of statoliths was divided between two experienced agers. One (Ager B) ground the statoliths on one side in the frontal plane for examination by light microscopy with camera lucida. The other (Ager G) ground statoliths ...
متن کاملFirst genetic validation and diagnosis of the short-finned squid species of the genus Illex (Cephalopoda: Ommastrephidae)
Squids of the genus Illex are representative of the family Ommastrephidae and account for 65% of the world’s cephalopod captures. Illex is formed by four taxa distributed throughout the Atlantic Ocean (I. ar-gentinus, I. coindetii, I. illecebrosus and I. oxygonius), whose identification and phylogenetic relationships based on morphological characters remain controver-sial. Thirtyseven enzyme-co...
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gol-e-gohar iron ore mine of sirjan in southern part of iran is a large open pit that operates below the groundwater table and during mining operation, dewatering is required to prevent operation processes from flooding. current operation is going on by digging wells in or out of the pit and pumping to prevent flooding. as a result of the former dewatering operation a vast deep cone of depressi...
Reconstruction of original body size and estimation of allometric relationships for the longfin inshore squid (Loligo pealeii) and northern shortfin squid (Illex illecebrosus)
Quantification of predator-prey body size relationships is essential to understanding trophic dynamics in marine ecosystems. Prey lengths recovered from predator stomachs help determine the sizes of prey most influential in supporting predator growth and to ascertain size-specific effects of natural mortality on prey populations (Bax, 1998; Claessen et al., 2002). Estimating prey size from stom...
متن کاملStock assessment methods used for cephalopod
Cephalopods are of increasing importance as a fishery resource and many species are taken in directed and bycatch fisheries around the world. Owing to the short life-cycles and variable growth rates of most cephalopods, stocks may be highly volatile, both highly susceptible to recruitment overfishing and, conversely, capable of rapid recovery. Many species have protracted spawning seasons so th...
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ژورنال
عنوان ژورنال: ICES Journal of Marine Science
سال: 2000
ISSN: 1054-3139
DOI: 10.1006/jmsc.2000.0585