Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Recruitment in flatfish, with special emphasis on North Atlantic species: Progress made by the Flatfish Symposia
Autore:
van der Veer, HW; Berghahn, R; Miller, JM; Rijnsdorp, AD;
Indirizzi:
Netherlands Inst Sea Res, NL-1790 AB Den Burg, Netherlands Netherlands Inst Sea Res Den Burg Netherlands NL-1790 AB rg, Netherlands Fed Environm Agcy, Inst Water Soil & Air Hyg, Field Stn Marienfelde, D-12307 Berlin, Germany Fed Environm Agcy Berlin Germany D-12307 nfelde, D-12307 Berlin, Germany N Carolina State Univ, Dept Zool, Raleigh, NC 27695 USA N Carolina State Univ Raleigh NC USA 27695 pt Zool, Raleigh, NC 27695 USA Netherlands Inst Fishery Res, RIVO, DLO, NL-1970 AB Ijmuiden, Netherlands Netherlands Inst Fishery Res Ijmuiden Netherlands NL-1970 AB Netherlands
Titolo Testata:
ICES JOURNAL OF MARINE SCIENCE
fascicolo: 2, volume: 57, anno: 2000,
pagine: 202 - 215
SICI:
1054-3139(200004)57:2<202:RIFWSE>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Soggetto:
PLAICE PLEURONECTES-PLATESSA; O-GROUP PLAICE; SCOPHTHALMUS-MAXIMUS L; WESTERN WADDEN SEA; LIMANDA-LIMANDA L; SOLEA-SOLEA L; LIFE-HISTORY STAGES; 0-GROUP PLAICE; TIDAL-FLAT; MORTALITY-RATES;
Keywords:
control; flatfish; recruitment; regulation; year-class strength;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
100
Recensione:
Indirizzi per estratti:
Indirizzo: van der Veer, HW Netherlands Inst Sea Res, POB 59, NL-1790 AB Den Burg, Netherlands Netherlands Inst Sea Res POB 59 Den Burg Netherlands NL-1790 AB
Citazione:
H.W. van der Veer et al., "Recruitment in flatfish, with special emphasis on North Atlantic species: Progress made by the Flatfish Symposia", ICES J MAR, 57(2), 2000, pp. 202-215

Abstract

In summarizing the main results on recruitment that emerged from the series of Flatfish Symposia, two aspects were distinguished: mean level and interannual variability. Recruitment to a stock appears to be related to the quantity of juvenile nursery habitats, suggesting that either larval supply or the carrying capacity of the nurseries is the limiting factor. However, available information on growth of 0-group Ratfish suggests that the carrying capacity of nursery areas is never reached. Variability in year-class strength is generated during the pelagic egg and larval stage, probably by variations in the hydrodynamic circulation and in the mortality rates of eggs and larvae. Density-dependent processes seem to occur only during the juvenile stages, particularly in respect of growth. However, no impact on recruitment variability has been found. Density-dependent mortality during the phase shortly after settlement dampens the interannual recruitment variability. There is no evidence of density-dependent effects in the adult phase at present, but these may have been important at lower levels of exploitation. The importance of the factors determining recruitment vary not only among species, but also over the species' range. It is suggested that damping processes can only occur in the demersal stage, implying that variability in year-class strength can only decrease in fish species with a demersal stage. If true, ultimate variability in recruitment in fish species will be related to the relative duration of the pelagic and demersal stages. (C) 2000 International Council for the Exploration of the Sea.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 26/11/20 alle ore 10:54:18