Fecundity of silver-phase eels (Anguilla anguilla) from different habitat types and geographic locations
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چکیده
منابع مشابه
Fishing mortality on silver eels , Anguilla anguilla ( L . ) , in Denmark
A total of 2198 silver eels were Carlin-tagged and released at two sheltered and one exposed site in the western Baltic Sea. A total of 547 tagged silver eels were recaptured, corresponding to recoverv rates from 19 to 38% at the different sites. The majoritv of the recaptured silver cds was reporred from wirhin a radius of 20 km and within a period of less than 16 days after release. There was...
متن کاملElectroretinographic evaluation of spectral sensitivity in yellow and silver eels (Anguilla anguilla).
Although differences in visual pigments between developmental stages of the European eel are well known, the expected differences in spectral sensitivity have not been demonstrated at the electrophysiological level. In fact, one past electroretinographic study led to the conclusion that in eels there is no change in scotopic sensitivity, with increasing sexual maturity. In the present experimen...
متن کاملGenomic footprints of speciation in Atlantic eels (Anguilla anguilla and A. rostrata).
The importance of speciation-with-geneflow scenarios is increasingly appreciated. However, the specific processes and the resulting genomic footprints of selection are subject to much discussion. We studied the genomics of speciation between the two panmictic, sympatrically spawning sister species; European (Anguilla anguilla) and American eel (A. rostrata). Divergence is assumed to have initia...
متن کاملSlow muscle power output of yellow- and silver-phase European eels (Anguilla anguilla L.): changes in muscle performance prior to migration.
Eels swim in the anguilliform mode in which the majority of the body axis undulates to generate thrust. For this reason, muscle function has been hypothesised to be relatively uniform along the body axis relative to some other teleosts in which the caudal fin is the main site of thrust production. The European eel (Anguilla anguilla L.) has a complex life cycle involving a lengthy spawning migr...
متن کاملThe temperature challenges on cardiac performance in winter-quiescent and migration-stage eels Anguilla anguilla.
The present study was undertaken to examine cardiac responses to some of the temperature challenges that eels encounter in their natural environment. The contractile properties of ventricular muscle was studied on electrically paced tissue strips after long term acclimation at 0 °C, 10 °C, or 20 °C, and following acute ± 10 °C temperature changes. The time-course of contraction, and thus maxima...
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ژورنال
عنوان ژورنال: ICES Journal of Marine Science
سال: 2015
ISSN: 1095-9289,1054-3139
DOI: 10.1093/icesjms/fsv065