Egg source, temperature and culture seawater affect elemental signatures in Kelletia kelletii larval statoliths
نویسندگان
چکیده
منابع مشابه
Barium and strontium uptake into larval protoconchs and statoliths of the marine neogastropod Kelletia kelletii
The trace elemental composition of calcified larval hard parts may serve as useful tags of natal origin for invertebrate population studies. We examine whether the trace metal barium (Ba) deposits into the calcium carbonate matrix of molluscan larval statolith and protoconch in proportion to seawater Ba concentration at two temperatures (11.5 and 17°C). We also examine strontium (Sr) uptake as ...
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Spawning market squid lay embryo capsules on the seafloor of the continental shelf of the California Current System (CCS), where ocean acidification, deoxygenation and intensified upwelling lower the pH and [O2]. Squid statolith geochemistry has been shown to reflect the squid’s environment (e.g., seawater temperature and elemental concentration). We used real-world environmental levels of pH a...
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Temperature effects on ectotherms are widely studied particularly in insects. However, the life-history effects of temperature experienced during a window of embryonic development, that is egg stage, have rarely been considered. We simulated fluctuating temperatures and examined how this affects the operational sex ratio (OSR) of hatching as well as nymph and adult fitness in a leafhopper, Scap...
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Seawater has occupied an ambiguous place in anthropological categories of "nature" and "culture." Seawater as nature appears as potentiality of form and uncontainable flux; it moves faster than culture - with culture frequently figured through land-based metaphors - even as culture seeks to channel water's (nature's) flow. Seawater as culture manifests as a medium of pleasure, sustenance, trave...
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sities that were lower than initial densities (Fig. 2, Tab le 1). Assuming a similar extraction efficiency for the Washington State population, the general nature of the relationship between initial and final nematode densities on Washoe was similar to the Italian population. Tile final densities of J2 of the Italian populat ion were lower than the initial densities at all inoculum levels in th...
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ژورنال
عنوان ژورنال: Marine Ecology Progress Series
سال: 2008
ISSN: 0171-8630,1616-1599
DOI: 10.3354/meps07172