scholarly journals Lemon sole Microstomus kitt in the northern North Sea: a multidisciplinary approach to the early life history dynamics

2021 ◽  
Author(s):  
Audrey J. Geffen ◽  
Jon Albretsen ◽  
Bastian Huwer ◽  
Richard D.M. Nash
Keyword(s):  
Life History ◽  
North Sea ◽  
Early Life ◽  
Multidisciplinary Approach ◽  
Early Life History ◽  
Northern North Sea

The benthos and fish of offshore sandbank habitats in the southern North Sea

2010 ◽  
Vol 91 (6) ◽  
pp. 1319-1335 ◽  
Author(s):  
J.R. Ellis ◽  
T. Maxwell ◽  
M. Schratzberger ◽  
S.I. Rogers
Keyword(s):  
Life History ◽  
North Sea ◽  
Early Life ◽  
Dynamic Environment ◽  
Early Life History ◽  
Restricted Range ◽  
Crangon Crangon ◽  
Life History Stages ◽  
Southern North Sea ◽  
Deposit Feeding

Meiofauna, macro-infauna and epifauna were sampled at two offshore sandbanks in the southern North Sea in 2006. The epifaunal and infaunal communities in the dynamic environment of the sandbank crests were species poor, with lesser weever, solenette,Crangon crangon, amphipods and deposit-feeding polychaetes the predominant benthic taxa. Abundant early life-history stages (24–39 mm) of the lesser weeverEchiichthys viperaon the sandbank crests indicated that these habitats may be important nursery grounds for this species. Species diversity of infauna and epifauna was greater in the deeper waters parallel to the sandbanks. Contrasting patterns were evident for meiofaunal nematodes, where communities collected on the sandbank crests were more diverse than those recorded in the deeper off-bank sites. The fauna of sandbank crests is composed of a restricted range of the fauna typically associated with sandy habitats, particularly taxa adapted to live in this dynamic environment.

Prey tell: what quillback rockfish early life history traits reveal about their survival in encounters with juvenile coho salmon

2020 ◽  
Vol 650 ◽  
pp. 7-18 ◽  
Author(s):  
HW Fennie ◽  
S Sponaugle ◽  
EA Daly ◽  
RD Brodeur
Keyword(s):  
Life History ◽  
Early Life ◽  
Life History Traits ◽  
Direct Evidence ◽  
Coho Salmon ◽  
Larval Fish ◽  
Early Life History ◽  
In The Wild ◽  
Otolith Microstructure Analysis ◽  
Pelagic Juvenile

Predation is a major source of mortality in the early life stages of fishes and a driving force in shaping fish populations. Theoretical, modeling, and laboratory studies have generated hypotheses that larval fish size, age, growth rate, and development rate affect their susceptibility to predation. Empirical data on predator selection in the wild are challenging to obtain, and most selective mortality studies must repeatedly sample populations of survivors to indirectly examine survivorship. While valuable on a population scale, these approaches can obscure selection by particular predators. In May 2018, along the coast of Washington, USA, we simultaneously collected juvenile quillback rockfish Sebastes maliger from both the environment and the stomachs of juvenile coho salmon Oncorhynchus kisutch. We used otolith microstructure analysis to examine whether juvenile coho salmon were age-, size-, and/or growth-selective predators of juvenile quillback rockfish. Our results indicate that juvenile rockfish consumed by salmon were significantly smaller, slower growing at capture, and younger than surviving (unconsumed) juvenile rockfish, providing direct evidence that juvenile coho salmon are selective predators on juvenile quillback rockfish. These differences in early life history traits between consumed and surviving rockfish are related to timing of parturition and the environmental conditions larval rockfish experienced, suggesting that maternal effects may substantially influence survival at this stage. Our results demonstrate that variability in timing of parturition and sea surface temperature leads to tradeoffs in early life history traits between growth in the larval stage and survival when encountering predators in the pelagic juvenile stage.

scholarly journals Early life history responses and phenotypic shifts in a rare endemic plant responding to climate change

2019 ◽  
Vol 7 (1) ◽  
Author(s):  
Daniel E Winkler ◽  
Michelle Yu-Chan Lin ◽  
José Delgadillo ◽  
Kenneth J Chapin ◽  
Travis E Huxman
Keyword(s):  
Climate Change ◽  
Life History ◽  
Phenotypic Variation ◽  
Early Life ◽  
Early Life History ◽  
Interactive Effects ◽  
Endemic Plant ◽  
Cushion Plant ◽  
Rare Endemic

We studied how a rare, endemic alpine cushion plant responds to the interactive effects of warming and drought. Overall, we found that both drought and warming negatively influenced the species growth but that existing levels of phenotypic variation may be enough to at least temporarily buffer populations.

Characterizing the early life history of an imperiled freshwater mussel (Ptychobranchus jonesi) with host-fish determination and fecundity estimation

2017 ◽  
Vol 36 (2) ◽  
pp. 338-350 ◽  
Author(s):  
John M. McLeod ◽  
Howard L. Jelks ◽  
Sandra Pursifull ◽  
Nathan A. Johnson
Keyword(s):  
Life History ◽  
Early Life ◽  
Freshwater Mussel ◽  
Early Life History ◽  
Host Fish ◽  
History Of

Early Life History of Spiny Lobster

Crustaceana ◽  
1994 ◽  
Vol 66 (3) ◽  
pp. 271-294 ◽  
Author(s):  
Bruce F. Phillips ◽  
John D. Booth
Keyword(s):  
Life History ◽  
Early Life ◽  
Spiny Lobster ◽  
Early Life History ◽  
History Of

Early Life History and Recruitment Processes of Clawed Lobsters

Crustaceana ◽  
1994 ◽  
Vol 67 (1) ◽  
pp. 1-25 ◽  
Author(s):  
J. Stanley Cobb ◽  
Richard A. Wahle
Keyword(s):  
Life History ◽  
Early Life ◽  
Early Life History
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