Group items tagged

The International Maritime Organisation (IMO) has urged liners navigating through the Somali coast to continue with counter piracy measures despite a reduction of incidents.

The International Maritime Organisation (IMO) has urged liners navigating through the Somali coast to continue with counter piracy measures despite a reduction of incidents.

Team Sanya est arrivé aujourd'hui à Madagascar. Course suspendue pour hauban cassé, l'équipage va y organiser la réparation de son gréement. Ou comment 11 marins de la Volvo Ocean Race débarquent sur le territoire malgache.

The values used for natural mortality (M) are very influential in stock assessment models, affecting model outcomes and management advice. Natural mortality is one of the most difficult demographic parameters to estimate, and there is often limited information about the true levels. Here, we summarise the evidence used to estimate natural mortality at age for the four main stocks of yellowfin tuna (Indian, Western and Central Pacific, Eastern Pacific, and Atlantic Oceans), including catch curves, tagging experiments, and maximum observed age. We identify important issues for estimating M such as variation with age linked to size, maturity state or senescence, and highlight information gaps. We describe the history of natural mortality values used in stock assessments by the tuna Regional Fisheries Management Organisations responsible for managing each stock and assess the evidence supporting these values. In June 2021, an online meeting was held by the Center for the Advancement of Population Assessment Methodology (CAPAM), to provide advice and guidance on practices for modelling natural mortality in fishery assessments. Based on approaches presented and discussed at the meeting, we develop a range of yellowfin tuna natural mortality estimates for each stock. We also recommend future research to improve these estimates of natural mortality.

South Asia Meet on Oil, Chemical Spill.

South Asia Meet on Oil, Chemical Spill.

Refreshed and salty from its travels along the Ningaloo Reef, our favourite underwater robot Starbug X has been shining a light on some of the secrets beneath the world-heritage waters.

Suite à la réussite du projet « poulpe » à Mbouanatsa en fin d'année 2016, ce samedi 11 février 2017, l'association des pêcheurs à pied de Mtsahara, accompagnée par le Parc naturel marin de Mayotte, fermera également la pêche sur le platier du village. L'objectif est de permettre aux poulpes de se reproduire, et de devenir plus gros et plus nombreux. La réouverture du site aura lieu le 27 mai 2017.

It sounds like a bad sci-fi plot: a fleet of 'bio robots' are let loose in the world's third largest ocean to study its physical and biological makeup.

Australian scientists have identified causes of a rapid warming in the upper subtropical oceans of the Southern Hemisphere.

Feared death toll in Somalia cyclone rises to 300.

News across the world has been dominated by the tragic mystery surrounding the disappearance of Malaysia Airlines flight MH370 somewhere in the southern Indian Ocean. Many people have been asking CSIRO for our take on the situation, the ocean, the technology being used to find the debris of the plane - so we wanted to let you know how our technology is being used and how we're assisting the Australian Maritime Safety Authority (AMSA).

Here's a simple backyard science experiment for you to try, which has global implications.

Navy to help climate scientists in pirate-infested waters.

Just one week after Chapala, another storm is targeting Socotra Island, Yemen.

Just one week after Chapala, another storm is targeting Socotra Island, Yemen.

Panic, deaths as Yemen's Socotra hit by new cyclone.

Panic, deaths as Yemen's Socotra hit by new cyclone.

WA shark study questions affect of tagging on animals' feeding ability.

WA shark study questions affect of tagging on animals' feeding ability.

As Queensland responds to another event-Tropical Cyclone Trevor-we've got some answers to a few of your cyclonic questions.

Hurricanes to deliver a bigger punch to coasts.

Strange and unusual deep sea creatures revealed by CSIRO scientists off north-west WA.

Around 60 years ago, marine scientists on an armada of ships from 14 countries combined their efforts to explore the largest unknown area of earth, the deep waters and seafloor of the Indian Ocean.

Iranian fishermen out of jobs while regime sells Oman and Persian Gulf fish to China causing environmental crisis.