Evaluation of chemical markers for age validation of western Baltic cod (Gadus morhua) otoliths
نویسندگان
چکیده
منابع مشابه
Effects of ocean acidification on the calcification of otoliths of larval Atlantic cod Gadus morhua
The growth and development of the aragonitic CaCO3 otoliths of teleost fish could be vulnerable to processes resulting from ocean acidification. The potential effects of an increase in atmospheric CO2 on the calcification of the otoliths were investigated by rearing Atlantic cod Gadus morhua L. larvae in 3 pCO2 concentrations — control (370 μatm), medium (1800 μatm) and high (4200 μatm) — from ...
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Conspicuous sonic click sounds were recorded in the presence of cod (Gadus morhua), together with either harp seals (Pagophilus groenlandicus), hooded seals (Cystophora cristata) or a human diver in a pool. Similar sounds were never recorded in the presence of salmon (Salmo salar) together with either seal species, or from either seal or fish species when kept separately in the pool. It is conc...
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Understanding how combinations of fishing effort and selectivity affect productivity is central to fisheries research. We investigate the roles of fishing regulation in comparison with ecosystem status for Baltic Sea cod stock productivity, growth performance, and population stability. This case study is interesting because three cod populations with different exploitation patterns and stock st...
متن کاملEffect of ocean acidification on marine fish sperm (Baltic cod: Gadus morhua)
Ocean acidification, as a consequence of increasing marine pCO2, may have severe effects on the physiology of marine organisms. However, experimental studies remain scarce, in particular concerning fish. While adults will most likely remain relatively unaffected by changes in seawater pH, early life-history stages are potentially more sensitive – particularly the critical stage of fertilization...
متن کاملFactors determining variations in otolith microincrement width of demersal juvenile Baltic cod Gadus morhua
Pelagic and demersal juvenile Baltic cod Gadus morhua L. were collected on the slope and the top of Rønne bank in the Baltic Sea during 2 cruises in November and December 1998. The objective of this study was to evaluate distinct changes in otolith increment width observed in demersal juveniles by comparison with laboratory-reared individuals, and to investigate the factors determining variatio...
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ژورنال
عنوان ژورنال: Frontiers in Marine Science
سال: 2015
ISSN: 2296-7745
DOI: 10.3389/conf.fmars.2015.03.00137