Titlebook: Jellyfish Blooms IV; Interactions with hu Jennifer Purcell,Hermes Mianzan,Jesscia R. Frost Book 2012 Springer Science+Business Media Dordre

induct

Increasing jellyfish populations: trends in Large Marine Ecosystems,e) were identified for 45, with variable degrees of confidence. Of those 45 LMEs, the majority (28 or 62%) showed increasing trends. These changes are discussed in the context of possible sources of bias and uncertainty, along with previously proposed hypotheses to explain increases in jellyfish.

同时发生

仇恨

Itinerant

Comparative phylogeography of meroplanktonic species, , spp. and , (Cnidaria: Scyphozoa) in Europea nucleotide diversity were found in samples of . sp. 8 and . from the northern Adriatic, which acts as a sink area due to strong genetic drift. These new findings will facilitate linking the phenotype of the organism and its ability to survive in a particular environment—which shapes phylogeographic

说明

Associations of large jellyfish distributions with temperature and salinity in the Yellow Sea and E the central YS. . spp. usually occurred in colder waters, with maximum biomass in May 2007 mainly north of 30°N. Our analyses suggest that environmental preferences of the large jellyfish may enable prediction of jellyfish population sizes and distributions in Chinese waters, which is essential in

condemn

, medusae (Cnidaria: Hydrozoa): a semiautonomous microcosm in the food web of Lake Tanganyika, the picocyanobacteria in medusae obtained nitrogen predominantly from their host. Stable isotopic ratios of carbon and nitrogen further suggested that copepods were the most likely prey for the medusae. Lake Tanganyika medusae apparently base their metabolism both on animal and plant sources, with

Optic-Disk

意见一致

职业拳击手

The potential role of podocysts in perpetuation of the common jellyfish , s.l. (Cnidaria: Scyphozoarviving for up to 3.2 year. Histology revealed that newly-formed podocysts contained rich organic reserves (e.g., carbohydrate, protein, and lipid) that were gradually consumed while encysted. Podocysts may contribute minimally to increasing . polyp abundance, but they can insure maintenance of the

acrobat

Temperature effects on asexual reproduction rates of scyphozoan species from the northwest Mediterr~April–May) in cool waters, followed by . during May–June, and then by . in mid-summer. Comparisons among scyphozoan species suggested that many may be restricted by low temperatures, and that global warming may benefit temperate species, but not tropical or boreal species.