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Macroparasites as biological tags for stock identification of the bluemouth, Helicolenus dactylopterus (Delaroche, 1809) in Portuguese waters.
Abstract In the present study, the macroparasite assemblage infecting Helicolenus dactylopterus (Delaroche, 1809) in three different areas off the Portuguese coast was evaluated in order to assess… Expand
Reproductive strategy of the female deep-water shark birdbeak dogfish, Deania calcea : lecithotrophy or matrotrophy?
Little information is available on the maternal–embryonic relationships among sharks. Birdbeak dogfish ( Deania calcea ) has been described as ovoviviparous, but this term comprises a wide range of… Expand
New approach to the reproductive biology of Helicolenus dactylopterus
The reproductive patterns of Helicolenus dactylopterus are presented; the species is zygoparous. The first photographic record of three embryonic stages in the intraovarian gelatinous matrix is also… Expand
Age and growth of bluemouth, Helicolenus dactylopterus, from the Portuguese continental slope
Sequeira, V., Neves, A., Vieira, A. R., Figueiredo, I., and Gordo, L. S. 2009. Age and growth of bluemouth, Helicolenus dactylopterus, from the Portuguese continental slope. - ICES Journal of Marine… Expand
Feeding habits of the bluemouth, Helicolenus dactylopterus dactylopterus (Delaroche, 1809) (Pisces: Sebastidae) in the Portuguese coast
In order to investigate the feeding habits of Helicolenus dactylopterusdactylopterus along the continental Portuguese coast, a total of 619 individuals were sampled of which 60% contained food in… Expand
Reproductive strategies in black scabbardfish (Aphanopus carbo Lowe, 1839) from the NE Atlantic
Gonads of the NE Atlantic black scabbardfish were examined to give an insight into the reproductive biology of this species. It was concluded that black scabbardfish had determinate fecundity… Expand
The gelatinous matrix of the teleost Helicolenus dactylopterus dactylopterus (Delaroche, 1809) in the context of its reproductive strategy
Abstract The bluemouth, Helicolenus dactylopterus dactylopterus (Pisces: Sebastidae), is a zygoparous species with internal fertilization that stores the spermatozoa in crypts within the female… Expand
Distribution patterns and reproduction of the cuttlefish, Sepia officinalis in the Sado estuary (Portugal)
The cuttlefish (Sepia officinalis) is the most important traditional fishing activity in the Sado estuary. In order to analyse the spatial and temporal distribution patterns and to study the… Expand
Life history parameters as possible discriminators of bluemouth Helicolenus dactylopterus (Delaroche, 1809) populations in Portuguese waters
Abstract The age, growth and reproductive biology of bluemouth, Helicolenus dactylopterus were studied in order to assess the use of these life history parameters as possible population… Expand
Modelling the growth of a protogynous sparid species, Spondyliosoma cantharus (Teleostei: Sparidae)
Age determination of fish species is a key process for fisheries management and the accuracy of assessments is highly dependent on age estimates. To model complex life histories such as protogynous… Expand