Results 111 to 120 of about 3,842 (163)

Deep-sea gas hydrate mounds and chemosynthetic fauna discovered at 3640 m on the Molloy Ridge, Greenland Sea. [PDF]

open access: yesNat Commun
Panieri G   +8 more
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Pheromone Transport and Reception in an Amphipod

Science, 1970
Sexual dimorphism in the second antennae of the amphipod Gammarus duebeni Lilljeborg is connected with the reception in the male of a female sex pheromone transported through the water. Investigations on tritium-labeled specimens were carried out with scintillator and autoradiographic techniques.
E, Dahl   +2 more
openaire   +2 more sources

Polychaete/amphipod ratio revisited

Marine Pollution Bulletin, 2007
In this paper, we reexamine the opportunistic polychaete/amphipod ratio, modifying it to allow estuarine and coastal communities to be divided into the five classes suggested by the European Water Framework Directive (WFD). The resulting biological index, called the BOPA index, considers the total number of individuals collected in the samples, the ...
Dauvin, Jean-Claude, Ruellet, T.
openaire   +3 more sources

Nitrogenous Excretion of Amphipods and Isopods

Journal of Experimental Biology, 1950
ABSTRACT The nitrogen excretion of eleven species of amphipods and isopods, including marine, fresh-water and terrestrial forms, has been studied. All species are essentially ammonotelic, since more than 50% of the total soluble N.P.N. of the excreta was present in the form of ammonia throughout.
E I B, DRESEL, V, MOYLE
openaire   +3 more sources

Host-plant specialization by a non-herbivorous amphipod: advantages for the amphipod and costs for the seaweed

Oecologia, 1999
Studies of factors affecting host plant specialization by herbivores commonly highlight the value of the plant as both food and habitat, but often cannot distinguish the relative importance of these plant traits. A different approach is to study non-herbivorous animals that specialize on particular plants but do not feed on tissue from these plants ...
Sotka, Erik E.   +2 more
openaire   +3 more sources

Complete mitochondrial genome of the Antarctic amphipodGondogeneia antarctica(Crustacea, amphipod)

Mitochondrial DNA, 2012
The complete sequence of the mitochondrial genome of the Antarctic amphipod Gondogeneia antarctica was determined to be 18,424 bp in length, and to contain 13 protein-coding genes (PCGs), 22 tRNA genes, and large (rrnL) and small (rrnS) rRNA genes. Its total A+T content is 70.1%. The G.
Seung Chul, Shin   +5 more
openaire   +2 more sources

Pressure Sensitivity of an Amphipod

Science, 1961
The responses of an intertidal amphipod indicate an ability to perceive rapid pressure changes of less than 0.01 atm. The interaction of rate of change of pressure and total difference in pressure implies a rapid accommodation as well as a threshold. Evidence suggests that the sensory mechanism may not involve compressibility of a gas.
openaire   +2 more sources

Amphipod ( Gammarus minus ) responses to predators and predator impact on amphipod density

Oecologia, 1998
Recent theoretical work suggests that predator impact on local prey density will be the result of interactions between prey emigration responses to predators and predator consumption of prey. Whether prey increase or decrease their movement rates in response to predators will greatly influence the impact that predators have on prey density.
openaire   +2 more sources

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