99 research outputs found
CO2-induced fertilization impairment in Strongylocentrotus droebachiensis collected in the Arctic
Full text linkThe measurement of wind erosion through field survey and remote sensing: a case study of the Mu Us Desert, China
Full text linkThe effect of temporary treatment of animal half embryos with lithium and the modification of this effect by simultaneous exposure to actinomycin D
No full textThe removal by actinomycin D of the effect of endogenous or exogenous animalizing agents in sea urchin development
No full textEffects of impoundment on the growth of Salmo trutta and Salvelinus alpinus in Lake Ransaren (Swedish Lappland)
No full textEffects of impoundment on the feeding habits of brown trout and char in Lake Ransaren (Swedish Lappland)
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Ăśber den Einfluss von Kupfer auf die Entwicklungs-erregung des Eies von Arbacia, Nebst Bemerkungen ĂĽber das Problem der Entwicklungserregung
No full textScale analysis suggests frequent skipping of the second reproductive season in Atlantic herring
No full textA common assumption in fish studies is that iteroparous fishes, once mature, normally reproduce in all consecutive seasons. An analysis of scales from Norwegian spring-spawning herring collected between 1935 and 1973 revealed a strong under-representation (47% of expected) of second-time spawners on the spawning grounds. This reduction is not satisfactorily explained by errors in scale-reading, suggesting that the second reproductive season is frequently skipped. Skipping a season may relate to trade-offs between growth, current and future reproduction, and survival, which are likely to be particularly strong for young adult herring
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