Category Archives: Fisheries

Sustainable shopping: how to buy tuna without biting a chunk out of the oceans

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Canned tuna is an Australian pantry staple.
NOAA

 

by Candice Visser and Quentin Hanich, University of Wollongong

Shopping can be confusing at the best of times, and trying to find environmentally friendly options makes it even more difficult. Welcome to our Sustainable Shopping series, in which we ask experts to provide easy eco-friendly guides to purchases big and small. Continue reading

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Pregnant Sharks and Rays Abort Offspring When Fished

Pregnant Sharks and Rays Abort Offspring When Fished – Guest post by Kye Adams

Have you ever seen a viral video of a shark or ray giving birth (e.g. River Monsters)? Unfortunately, it turns out these videos have a pretty dark explanation: There’s a fairly high chance the female is actually aborting her pups due to the stress of being caught. Continue reading

Species on the move

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A prediction of the preferred environmental habitat for the range-shifting yellowtail kingfish (Seriola lalandi) for March 2008, based on a combination of preferences for sea surface temperature, current speed and sea surface height.

Curtis Champion is a PhD candidate at the Institute for Marine and Antarctic Studies – University of Tasmania. He stopped by the Fish Thinkers blog to give us a run down on some of the research he is working on.

Species on the move and a quick explainer about how range-shifts are commonly identified

Climate. Change. No doubt you’ve heard of the phenomenon. And while a small number of our political reps sporadically break into the headlines for criticising its reality, the global scientific community has been busy forging novel territory to understand its ecological consequences. This emergent field is most-commonly referred to as “species redistribution science” because plants and animals shifting where they live (generally towards the poles or up mountains) in response to changes in temperature is perhaps the most perceptible ecological effect of climate change. Continue reading

How do patterns in coastal seascapes influence temperate reef fish assemblages?

Daniel Swadling is a new PhD student at the University of Wollongong who is embarking on a project to better understand the relationship between temperate fishes and their habitats. He also loves his luderick and drummer fishing using an old school Alvey reel, so he is going to fit in just fine and I sense there will be plenty of fishing adventures in the future. Below is his guest post recapping his honours project and where he is heading with his PhD research.

My name is Daniel, I am a PhD student at the University of Wollongong (UOW) Continue reading

Have your say on the NSW Marine Estate Threat and Risk Assessment

Are you concerned about the health of New South Wales marine environment?

If you are, it is worth looking at the NSW Marine Estate Threat and Risk Assessment Draft Report and providing a submission or comment to improve the assessment.

The report will be used to determine the most important threats and risks to the NSW marine environment and your submission could help decide where management actions are directed. Note: submissions are due this Saturday the 30th of April.

The website contains the current threat and risk assessment for a range of human activities on environmental assets (for e.g. fish, beaches, rocky reef etc.). It is interesting to see what the current risk ratings are for certain human activities and how the NSW Marine Estate justify these ratings.

To search for this information the NSW Marine Estate has developed an interactive tool to help you navigate through the draft assessment. Once you have identified a human activity (for e.g. recreational fishing) and its risk on an environmental asset (for e.g. the fish assemblage) there are links to a variety of reports used to justify this ranking plus a link to provide your own feedback.

The interactive tool did take me some time to get the hang of, so below are instructions and screen grabs to help you navigate your way through the site.

Continue reading

Why Salmon can’t be on the menu anymore

We as consumers, particularly in western countries, are pretty boring when it comes to our seafood. Given the diversity of fish in our oceans this seems pretty strange. It’s like our taste buds are only fond of a handful of species such as tuna, cod, salmon, flake etc. But our obsession for these fish (majority of which are apex predators), has resulted in many of their stocks becoming overfished and deterioration of the ecosystems in which they live in. So it’s time we started mixing things up in terms of what seafood we catch, order, buy and cook!! This leads me to today’s guest post by Lauren Yates of Ponytail Journal. Lauren runs a super successfully blog covering all things from fashion, food and travel. When it comes to cooking, Lauren is a huge advocate of using sustainable seafood, regularly encouraging her followers to steer clear of the ‘trendy’ species that are overexploited and explore more sustainable options. Read her post below on why salmon can’t be on the menu anymore… Continue reading