Titlebook: Biology of Skates; David A. Ebert,James A. Sulikowski Book 2009 Springer Science+Business Media B.V. 2009 Chondrichthyes.Rajiformes.Skates

obeisance

https://doi.org/10.1007/978-3-662-61753-3ographic and bathymetric distribution and the taxonomic composition of the southern African skate fauna are analysed and the distribution mapped. The southern African skate fauna is best known off the temperate west coast of South Africa from the intertidal to approximately 1,200?meters, but poorly

角斗士

賠償

,Psychopharmaka und Fahrtüchtigkeit,t common elasmobranch species landed in central and northern California demersal fisheries, yet life history information is extremely limited for this species and aspects of its diet are unknown. Specimens of . were collected between September, 2002 and August, 2003 from fisheries-independent trawl

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https://doi.org/10.1007/978-3-540-34489-6two regions (continental shelf and continental slope) based on prey species and depth of capture. The shelf group consisted of four species, . sp. A, . and ., while the slope group comprised two species, .sp.. and . The two groups varied in feeding strategies with the shelf species generally occupyi

JAMB

膠水

Engaged

moribund

creditor

,Psychopharmaka und Fahrtüchtigkeit,Additionally, skates possess a specialized sensory system that can detect electrical stimuli at the same strength at which they discharge their organs. These two factors are suggestive of a communicative role for the electric organ in skates, a role that has been demonstrated in similarly weakly ele

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,Psychopharmaka und Fahrtüchtigkeit,h females are heavier than males for a given total length (TL). Using logistic regression, it was determined that TL at 50% maturity of males was 475?mm TL and of females 520?mm TL. This estimation agrees with the morphological parameters measured. Although not statistically significant, a peak in r