Variability in settlement and recruitment of 0-group dab Limanda limanda L. in Port Erin Bay, Irish Sea
In: Journal of Sea Research. Elsevier/Netherlands Institute for Sea Research: Amsterdam; Den Burg. ISSN 1385-1101; e-ISSN 1873-1414, more
Also appears in:Yamashita, Y.; Nash, R.D.M.; van der Veer, H.W. (Ed.) (2007). Proceedings of the Sixth International Symposium on Flatfish Ecology, Part II, held at Maizuru, Kyoto, Japan from 20-25 October 2005. Journal of Sea Research, 58(1). Elsevier: Amsterdam. 1-112 pp., more
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| Keywords |
Biological settlement > Larval settlement
Developmental stages > Juveniles
Developmental stages > Larvae
Hydrographic features > Marine areas > Seas > Northeast atlantic > Irish sea
Population functions > Recruitment
Settlement
Settlement
Temporal variations
Vertebrates > Fishes > Osteichthyes > Pleuronectiformes > Pleuronectidae > Limanda
Pleuronectes limanda Linnaeus, 1758 [WoRMS]
ANE, Irish Sea [Marine Regions]
Marine/Coastal |
| Author keywords |
larvae; juveniles; settlement; dab; Limanda; Irish Sea |
| Abstract |
Inter-annual variability in settlement and recruitment of 0-group dab Limanda limanda L. was investigated between 1996 and 2003 on Port Erin Bay, Isle of Man. The annual settlement index of post larvae dab (ind ≤20 mm) varied considerably between years with a corresponding coefficient of variation of 97%. The timing of the settlement of dab was associated with metamorphosis and varied significantly with temporal variation in estimated spawning activity. Inter-annual variation in the numbers of settling post larvae was strongly associated with stage one larvae abundance indices from adjacent offshore waters. 0-group abundance indices were significantly correlated with the index of settlement abundance, but not however, with larvae indices. These relationships suggest that the strength of the recruiting year-class of 0-group dab in Port Erin Bay is established early in life, during or before the pelagic phase, in the waters west of the Isle of Man. Inter-annual variability in 0-group mortality rates suggests a possible density-dependent process operating during the nursery ground phase. |
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