Impact of fishing on life histories
Artificial selection pressures imposed by fisheries can impact population structure in the short term and drive evolution of life-history traits in the long term. In exploited squid populations the short […]
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Read more of: Impact of fishing on life histories
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Squid recruitment dynamics. The genus Illex as a model. The commercial Illex species. Influences on variability
Read more of: Squid recruitment dynamics. The genus Illex as a model. The commercial Illex species. Influences on variabilitySquid are among the fastest-growing short-lived commercial species and, as opposed to most finfish resources worldwide, their contribution to the total world fish production has been increasing at a high […]
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Chiroteuthis veranyifrom the Atlantic sector of the Southern Ocean (Cephalopoda: Chiroteuthidae)
Read more of: Chiroteuthis veranyifrom the Atlantic sector of the Southern Ocean (Cephalopoda: Chiroteuthidae)Chiroteuthis veranyi (Férussac, 1835) (Cephalopoda: Chiroteuthidae) from South Georgia is described from material collected during the British Antarctic Survey’s Offshore Biological Programme. The material closely resembles C. veranyi from elsewhere […]
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Physiological progenesis in cephalopod molluscs
Read more of: Physiological progenesis in cephalopod molluscsThe coleoid cephalopods (cuttlefish, squid and octopus) arose from their shelled ancestors during the late Devonian; they diversified in the Jurassic but did not radiate substantially until the Tertiary. Since […]
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Polar patches – outstanding issues
Read more of: Polar patches – outstanding issuesHistorically, the term polar patch was used to describe isolated regions of enhanced 630 nm emission observed in the polar cap. In recent years, signatures from other instruments, such as […]
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Ionospheric signatures of magnetopause pocesses
Read more of: Ionospheric signatures of magnetopause pocessesWhilst it is well-accepted that short-duration changes to the Interplanetary Magnetic Field (IMF) and solar wind cause high-latitude ionospheric transients observed by magnetic, optical and radar techniques, a coherent explanation […]
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The age of the base of the Gustav Group in the James Ross Basin, Antarctica
Read more of: The age of the base of the Gustav Group in the James Ross Basin, AntarcticaThe Lagrelius Point Formation from its type area in north-west James Ross Island, Antarctica has yielded dinoflagellate cysts indicative of an earliest Aptian age. Reworked palynomorphs presumed to be from […]
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Determining the sex of Antarctic krill Euphausia superba using carapace measurements
Read more of: Determining the sex of Antarctic krill Euphausia superba using carapace measurementsA discriminant function using simple carapace measurements corretly determined the sex of 87% of male and 89% of female Antarctic krill Euphausia superba. This facilitated the use of sex-specific regression […]
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