Physiological effects of marine natural organic matter and metals in early life stages of the North Pacific native marine mussel Mytilus trossulus; a comparison with the invasive Mytilus galloprovincialis

Abstract Heath, M. R. 2007. The consumption of zooplankton by early life stages of fish in the North Sea. – ICES Journal of Marine Science, 64: 1650–1663. Previous work has shown that during the 1970s, fish and carnivorous macrozooplankton together consumed ∼22 gC m−2 year−1 of mesozooplankton, principally copepods. Consumption declined to ∼17 gC m−2 year−1 during the 1990s, mainly because of a reduction in fish production. The zooplankton production required to meet this demand seems to be approximately accounted for by estimates of new primary production, but there are additional sinks for zooplankton production attributable to predation by, for example, gelatinous species. Additionally, the consumption of zooplankton by early life stages of fish is difficult to assess and could be larger than implied by the earlier analysis. Here, the role of fish early life stages in zooplankton consumption is re-assessed, and found to be approximately double that previously estimated. Some 28% of the zooplankton consumption by fish is now estimated to be attributable to early life stages, resulting in an estimate of zooplankton consumption by the fish community as a whole 14% higher. Taken overall, the consumption of zooplankton production by fish and other planktivorous predators is now estimated to be 19–25 gC m−2 year−1.

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Spatiotemporal dynamics of predators and survival of marine fish early life stages: Atlantic cod (Gadus morhua) in the North Sea

Progress In Oceanography ◽

10.1016/j.pocean.2019.102121 ◽

2019 ◽

Vol 176 ◽

pp. 102121 ◽

Cited By ~ 2

Author(s):

Anna Akimova ◽

Marc Hufnagl ◽

Myron A. Peck

Keyword(s):

North Sea ◽

Marine Fish ◽

Early Life ◽

Gadus Morhua ◽

Atlantic Cod ◽

Life Stages ◽

Early Life Stages ◽

The North ◽

The North Sea ◽

Fish Early Life Stages

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Evidence for geographical isolation of the early life stages of the white anglerfish, Lophius piscatorius, based on otolith microchemistry

Journal of the Marine Biological Association of the United Kingdom ◽

10.1017/s002531540401001xh ◽

2004 ◽

Vol 84 (4) ◽

pp. 827-830 ◽

Cited By ~ 6

Author(s):

S.C. Swan ◽

P.J. Wright ◽

D.A. Woodroffe ◽

J.D.M. Gordon ◽

T. Shimmield

Keyword(s):

Early Life ◽

Early Life History ◽

Life Stages ◽

Early Life Stages ◽

Geographical Isolation ◽

Genetic Structuring ◽

North East ◽

The North ◽

Population Structuring ◽

Limited Exchange

Concentrations of elements in the sagittal otoliths of juvenile white anglerfish (Lophius piscatorius) from five locations in the north-east Atlantic were measured to test for evidence of segregation in the early life stages. The concentrations of some elements, notably copper, were different between locations. As such, the results suggest limited exchange between locations during some period of the early life history. The relevance of these results to our understanding of population structuring is discussed in relation to recent information on anglerfish movements and genetic structuring.

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Life history strategy and impacts of environmental variability on early life stages of two marine fishes in the North Sea: an individual-based modelling approach

Canadian Journal of Fisheries and Aquatic Sciences ◽

10.1139/f10-164 ◽

2011 ◽

Vol 68 (3) ◽

pp. 426-443 ◽

Cited By ~ 42

Author(s):

Ute Daewel ◽

Myron A. Peck ◽

Corinna Schrum

Keyword(s):

North Sea ◽

Early Life ◽

Environmental Variability ◽

Larval Fish ◽

Transport Processes ◽

Life Stages ◽

Early Life Stages ◽

The North ◽

The North Sea ◽

Fish Survival

We employed a suite of coupled models to estimate the influence of environmental variability in the North Sea on early life stages of sprat ( Sprattus sprattus ), a small pelagic clupeid, and Atlantic cod ( Gadus morhua ), a demersal gadoid. Environmentally driven changes in bottom-up processes were projected to impact the survival and growth of eggs and larvae of these marine fish species in markedly different ways. We utilized a spatially explicit, individual-based model (IBM) to estimate larval fish survival and a 3D ecosystem model (ECOSMO) to provide variable prey fields. The model was applied to each of 3 years (1990, 1992, 1996) specifically characterized by interannual differences in water temperature in late winter and spring. Our results indicated that an important mechanism connecting environmental factors to larval fish survival was the match–mismatch dynamics of first-feeding larvae and their prey, which was species-specific because of (i) differences in the timing and locations of spawning, (ii) the duration of endogenously feeding life stages, and (iii) prey thresholds required for larval survival. Differences in transport processes also played an important role for the potential survival of larvae of both species.

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