Group items tagged

USS LABOON Makes Second Drug Bust In A Week.

For the second time in two legs, Team Sanya are facing a test of resource and resolve just to continue in the race but for skipper Mike SANDERSON there is no doubt they will be back ready to pounce in time for Leg 3.

The pelagic development stages of many marine invertebrate species dictates their spatial and temporal distribution once reaching their benthic second phase of life. This life cycle is associated with the Western Rock Lobster (Panulirus cygnus) along the coast of Western Australia. Over the past 50 years, the number of puerulus reaching the nearshore reefs after their first 9 to 11 months of pelagic life in Western Australia has been monitored. These numbers, collected now at eight sites over the latitudes of the fishery, are indicative of the catchable stock 3-4 years into the future. In 2008, the fishery experienced a recruitment failure which lasted for several years before recovering to mean numbers pre-2008. This was associated with spatial and temporal shifts in the patterns of puerulus settlement. Previous research has hypothesized that physical and biological conditions in the south-east Indian Ocean no longer favored their survival. However, this decline has not been attributed to a single process. As the recovery is ongoing, contrasts in the settlement data before and after the decline are not completed. Here we characterize the data using ANOVA and pairwise comparisons to gain a better understanding of the typical patterns after the decline. Our results demonstrate that there has been a significant reduction in puerulus numbers over the first half of the season at all sites post decline. For the sites south of Lancelin there has been a significant reduction in puerulus numbers over the whole season. In addition, sites that show signs of recovery indicate that the majority of settlement occurred in the second half of the season. We anticipate these results to be the starting point for focused research into the environmental changes which may have occurred to generate these shifts in settlement numbers both from a timing and spatial perspective.

Second mission to scale deep mountains announced.

In the second part of our report into measuring the effects of light reduction and sediment burial to determine the capacity for northwest seagrasses to withstand change, we move from the field to the lab for some surprising results.

In the second part of our report into measuring the effects of light reduction and sediment burial to determine the capacity for northwest seagrasses to withstand change, we move from the field to the lab for some surprising results.

DNA confirms 5.6m juvenile female is an Omura's whale, the first to be seen in WA and only the second in Australia.

DNA confirms 5.6m juvenile female is an Omura's whale, the first to be seen in WA and only the second in Australia.

CAMPER have snatched the lead from Groupama and PUMA have slipped into second place as a high intensity and high stakes game of cat and mouse is unfolding as the fleet edge towards the Indian Ocean.

After a hideous night bashing across the Agulhas Current, the Volvo Ocean Race fleet has now reached a road block. It is the windless trough between the two low-pressure systems, which have threatened, but not yet evolved into one. It is now a race to get through the light and fluky airs of the trough and reach the new northerly breeze of the second front.

Team Telefónica snatched victory from CAMPER with Emirates Team New Zealand to win a thrilling first stage of Leg 2 by one minute and 57 seconds and strengthen their position at the top of the overall leaderboard.

Telefónica remporte ce soir le premier acte de l'étape entre Le Cap et Abu Dhabi. Après plus de 15 jours de course, une minute et 57 secondes le sépare seulement de CAMPER with Emirates Team New Zealand, deuxième !

Skipper Chris NICHOLSON paid tribute to the winners after CAMPER with Emirates Team New Zealand were pipped to the finish by Team Telefónica in the climax of an epic duel between the two boats.

Team Telefónica have jumped to second place and more than halved Groupama sailing team's lead overnight, as the entire racing fleet vanished into the anti-piracy stealth zone.

Hearts have been in mouths today as five multimillion dollar Volvo Open 70s were hoisted 40 feet in the air and onto a ship that is expected to begin transporting them to the start of the second stage of Leg 2 tomorrow.

With Chapala's destructive landfall in Yemen just a couple of days in the past, a second tropical cyclone, Megh, has just formed in the Arabian Sea. This one is not forecast to become anywhere near as intense as Chapala did-though we know intensity forecasts can be wrong, as they were at early stages for both Chapala and Patricia.

A French-British task force dealt a £75m blow to terrorists after scoring the second major drugs bust in a month.

The decline in numbers of reef manta rays (Mobula alfredi) throughout their range has highlighted the need for improved information on their spatial ecology in order to design effective conservation strategies for vulnerable populations. To understand their patterns of movement in Seychelles, we used three techniques-archival pop-up satellite tags, acoustic tags, and photo-identification-and focussed on the aggregation at D'Arros Island and St. Joseph Atoll within the Amirantes Group. M. alfredi were photographed within six of the seven Island Groups of Seychelles, with 64% of individuals being resighted at least once between July 2006 and December 2019 over timeframes of 1-3,462 days (9.5 years; median = 1,018 days). Only three individuals from D'Arros Island were resighted at a second aggregation site located more than 200 km away at St. François Atoll during photo-identification surveys. Satellite-tracked M. alfredi (n = 5 tracks; maximum 180 days) remained within the boundary of the Seychelles Exclusive Economic Zone, where they spent the majority of their time (87%) in the upper 50 m of the water column in close proximity to the Amirantes Bank. The inclusion of acoustic tagging data in the models of estimated satellite-track paths significantly reduced the errors associated with the geolocation positions derived from archived light level data. The insights gained into the patterns of horizontal and vertical movements of M. alfredi using this multi-technique approach highlight the significance of D'Arros Island and St. Joseph Atoll, and the wider Amirantes Group, to M. alfredi in Seychelles, and will benefit future conservation efforts for this species within Seychelles and the broader Western Indian Ocean.

Recent literature on the impact of cyclones on mangrove forest productivity indicates that nutrient fertilizations aided by tropical cyclones enhance the productivity of mangrove forests. We probe the implications of these predictions in the context of Indian mangroves to propose potential future directions for mangrove research in the subcontinent. First, we look at the time series trend (2000-2020) in satellite-derived gross primary productivity (GPP) datasets for seven mangrove forests across the country's coastline. Second, we compare seasonal changes in soil nutrient levels for a specific site to further the arguments proposed in the literature and investigate the role of potential drivers of mangrove productivity. We find overall increasing trends for GPP over the past two decades for all seven mangrove sites with seasonal fluctuations closely connected to the tropical storm activities for three sites (Bhitarkanika, Pichavaram, and Charao). Additionally, organic carbon and nitrogen levels showed no significant trend, but phosphorus levels were higher during the post-monsoon-winter period for Bhitarkanika. Our findings expand the predictions of previous studies that emphasized the role of storm-induced nutrient fluxes and freshwater supply as primary drivers of productivity gradients in mangroves. Our study provides insights on how mangrove productivity may change with fluctuating frequency and magnitude of cyclones under a changing climate, implying the need for more mechanistic studies in understanding the long-term impact on mangrove productivity in the region.