Marine sediments can contain B vitamins, presumably incorporated from settled, decaying phytoplankton and microorganisms associated with decomposition. Because B vitamins may be advantageous for the energetically intensive processes of metamorphosis, post-metamorphic growth, and reproduction, we tested several B vitamins to determine if they would stimulate larvae of the deposit-feeding polycha...

Little is known about how fishes and other non-calcifying marine organisms will respond to the increased levels of dissolved CO(2) and reduced sea water pH that are predicted to occur over the coming century. We reared eggs and larvae of the orange clownfish, Amphiprion percula, in sea water simulating a range of ocean acidification scenarios for the next 50-100 years (current day, 550, 750 and...

Lemon sole Microstomus kitt is a commercially valuable flatfish species that occurs in shelf waters around the northeast Atlantic. Only most basic life-history information available for North Sea. Spawning generally assumed to occur between early May and October, with peak August. larvae have been found water column northern Sea winter during standard surveys. Larvae captured November/December ...

Abstract The relative mortality rate of trochophore larvae exposed to cryopreservation is significantly higher at early larval developmental stages in blue mussels Mytilus galloprovincialis . However, little known about cryodamage on the quality cellular and molecular modifications aquatic species, including M. This study aimed investigate effects established technique reactive oxygen species (...

The complex life cycle of the parasitic nematode Strongyloides stercoralis leads to either developmental arrest of infectious third-stage larvae (iL3) or growth to reproductive adults. In the free-living nematode Caenorhabditis elegans, analogous determination between dauer arrest and reproductive growth is governed by dafachronic acids (DAs), a class of steroid hormones that are ligands for th...

RATIONALE The role of the immune response to caterpillar exposure is not well described. This case study is the first to report a patient who presented with an allergic reaction after exposure to the larvae of the sycamore tussock moth, Halysidota harrisii Walsh, 1864. METHODS Blood was collected from an allergic asthmatic adult (m/42 y/o) at 2 hrs - 2 wks after contact urticaria with associa...

the objective of this study was to determine the efficacy of two procedures i.e. feeding and immersion followed by feeding, for masculinizing blue hap. two experiments (experiments i and ii) were conducted. in experiment i, feeding hormonal treatment was applied on post-yolk sac stage fry (10 days after fertilization at 27ºc). dosages of 30mg (group a) and 60mg (group b) of 17α-methyltestostero...

Otolith-based reconstructions of daily larval growth increments were used to examine the effect of variation in larval growth on size and age at settlement and post-settlement growth, survival and habitat preferences of juvenile bicolor damselfish (Stegastes partitus Poey). During August 1992 and 1994, newly settled S. partitus were collected from Montastraea coral heads and Porites rubble pile...

Isolation of autochthonous bacteria from marine sources as a potential probiont in biocontroling against pathogenic Vibrio species in the shrimp culture industry was the aim of current research. A total of 198 bacterial strains were isolated from pond water, sediment, hepatopancreas and gut samples of shrimps after culturing the samples on Tryptic Soy Agar and incubated at 30 °C for 24-48 h. Th...