Toxoplasma gondii has recently been recognized to be widely prevalent in the marine environment. It has previously been determined that Eastern oysters (Crassostrea virginica) can remove sporulated T. gondii oocysts from seawater and that oocysts retain their infectivity for mice. This study examined the long-term survival of T. gondii oocysts in oysters and examined how efficient oysters were ...

the experiment was conducted to determine the effects of different photoperiods and darkness on the growth and survival of juvenile catla catla in the laboratory for 90 days. fishes were divided into four aquaria (10 fish per aquarium), and subjected to different photoperiod regimes of 8 hours light: 16 hours dark (8l:16d), 16 hours light: 8 hours dark (16l:8d), continuous light (24l:0d) and co...

The effects of ocean acidification alone or in combination with warming on coral metabolism have been extensively investigated, whereas none of these studies consider that most coral reefs near shore are already impacted by other natural anthropogenic inputs such as metal pollution. It is likely that projected ocean acidification levels will aggravate coral reef health. We first investigated ho...

A series of experiments rearing the Caribbean spiny lobster (Panulirus argus) was conducted to improve the growth and survival rates of laboratory-reared lobsters for subsequent experimentation. Seventeen groups of animals consisting of 25 to 63 pueruli were collected with modified Ross Witham collectors over five years in the Florida Keys. Groups of lobsters were raised communally for up to fo...

Although the presence/absence of aquatic invertebrates using environmental DNA (eDNA) has been established for several species, inferring population densities has remained problematic. The invasive American signal crayfish, Pacifastacus leniusculus (Dana), is the leading cause of decline in the UK's only native crayfish species, Austropotamobius pallipes (Lereboullet). Methods to detect species...

Ocean acidification poses a severe threat to corals; declines in carbonate ion concentrations caused by increasing atmospheric CO2 partial pressure (pCO2) can severely impact coral calcification. Thus, there is an urgent need understand the impacts of near-future ocean on corals. In this study, we compared effects seawater at present and pCO2 (approximately +200 μatm) levels skeletal weights ne...

Four new species of the subgenus Heteromysis (Olivemysis) were detected in material from (sub)-tropical aquaria six public aquarium institutions around globe. Modifications pleopods by spines represent strongest structural complex used for differentiation within this subgenus: male 1–4 modified H. smithsoniana sp. nov., 2–4 plus female pleopod 2 hornimani nov. and waikikensis Additional importa...