Lethal and sublethal effects of particular starvation events were investigated in larvae of Carcinus maenas L. Mean survival times of continuously starved zoeae-1 were approximately twice the normal stage duration (12, 18, 25掳C), and both increased with falling temperatures. At 6掳C zoea-1 was...
1.1. The growth (dry weight, W), protein, lipid content and nucleotide composition (ATP, ADP, AMP, UTP and GTP) were estimated at 16°C at daily intervals for growing and starving zoea I of Carcinus maenas.2.2. Larvae fed with Artemia sp. during the entire development moulted at the ...
As is typical of all portunid zoeae, the cephalothorax of theC. maenasZoea IV is armed with a characteristic rostral and a dorsal spine (Fig.2a; and [60,61]). In the Zoea I, the compound eyes are sessile, but after moulting to the Zoea II they are stalked. In bright field and ...
Larvae of Carcinus maenas L. were reared in the laboratory from hatching through metamorphosis at 9, 12, and 18°C. Dry weight (DW) and elemental contents of carbon (C), nitrogen (N), and hydrogen (H) were analysed at short intervals through successive larval moulting cycles (four zoea-...
Vertical migration of the crab Carcinus maenas first zoea in an estuary: implications for tidal stream transport This is a title only record which contains no abstract. Please see the bibliographic details to the right. H Queiroga,JD Costlow,MH Moreira - 《Marine Ecology Progress》 被引量: 156...
The following rearing temperatures proved most successful during larval development: (1) embryonic development, 10°C; (2) zoea stages, 15°C; (3) megalopa stage, 17.5°C. The larvae hatch preferably in darkness when reared under short-day conditions....
Hence, they will only develop outside the lagoon, as proved by the observation of zoea I stages exclusively. Main recruitment starts in April, i.e. much later than the first larvae appear. Small crabs prefer Zostera noltii patches and colonize other sites when the carapace width exceeds about...
Larval abundance and recruitment of Carcinus maenas L. close to its southern geographic limit: a case of match and mismatch. Hydrobiologia 449, 153-158.Sprung M (2001) Larval abundance and recruitment of Carcinus maenas L. close to its southern geographic limit: a case of match and mismatch....
R. (1993). On the morphology of the central nervous system in larval stages of Carcinus maenas L (Decapoda, Brachyura). Helgol. Wissensch. Meeresunters. 47, 61-79.S. Harzsch,Dr. R. R. Dawirs.On the morphology of the central nervous system in larval stages ofCarcinus maenas L. (...
Horizontally, there was a dear association of the first zoea with the estuarine inlet while the older meal stages were dispersed progressively offshore. Evidence was found that the megalopa experienced an onshore transport that did not affect the previous stages.This transport is wnsistent with ...