Following the acquisition of EFE & GB Nets earlier this year, NHBS now manufactures a wide range of plankton nets at our workshop in Devon. Nets are available with an opening diameter of 250mm, 300mm or 500mm and with mesh sizes ranging from 10µm to 500µm.
250mm and 300mm diameter nets
250mm and 300mm diameter nets have a stainless steel frame to which a 500mm long bag is attached. They are supplied with a harness and seven metre long towing line which can be used to tow the net behind a boat or from a suitable bank or jetty.
The standard cod end is fitted with a filter in the same mesh size as the main part of the bag. However, various alternatives can be selected at the time of ordering. Options include a clear extension tube, collecting bottle, tap valve or large filter fitted in place of the standard filter. It is also possible to have weight loops added to the end of the net (weights not included) or a stainless steel swivel to be used on the harness in place of the standard nylon ring.
The heavy duty upgrade uses heavy duty nylon for the net collar and cod end collar and also includes fully taped seams.
500mm diameter nets
500mm diameter nets have a stainless steel frame and 1900mm long bag and a three point harness with swivel connector. All seams are reinforced and the collar is made from industrial nylon for added strength and durability. The cod end of the bag is fitted with a heavy duty screw-on filter in the same mesh size as the bag. This net is not supplied with a towing rope and so users will need to supply their own rope or chain which can be fitted to the harness.
As with the smaller plankton nets, various adaptations are available in order to create a net which is suited to your sampling needs. A flexible cod end extension allows a greater sample volume to be collected and also lets you connect a different filter type. A replacement cod end cap provides a closed ended option and results in a sample size of 700ml and a quick release bag is ideal for collecting fry or elver or for when a rapid changeover of bags is required.
Net bags and the educational plankton net
As well as standard plankton nets, we also stock a range of plankton net bags designed to fit onto the professional hand net frame. These fit onto the frame in the same way as the standard hand net bags, and have a detachable screw-on filter in the centre. An educational plankton net with 150µm mesh is also available for school use or for those who require an economical net for trial sampling.
This short guide helped us to address the most common questions posed by “climate change challengers”.
We discovered the OceanAdapt website which lets members of the public search and download geographic data of more than 650 species of fish and invertebrates and track how these have changed over time…a hugely valuable resource for fishermen and scientists.
We also learned about the importance of citizen awareness in the Global Fishing Watch project. This amazing new scheme uses satellite data to make global issues of overfishing much more transparent, as well as making huge quantities of fisheries science data available to researchers.
Flying under the influence: A drunk tank for birds, situated in the Yukon territory, opens for business.
And finally…the UK’s first number two bus (quite literally). Powered entirely by human sewage and food waste, this bus is now in service between Bristol and Bath.
New arrivals at the warehouse
This new Programmable Heated Bat Box lets you set maximum and minimum daily temperatures for each month of the year, as well as letting you set up and monitor up to four boxes remotely via an online interface.
The Nest Box Camera Starter Kit contains everything you need to start filming birds in your garden. It includes an FSC timber bird box pre-fitted with a camera and 30m cable. Simply plug into your TV and start watching the action.
A full-colour identification guide to members of the genus Carcharhinus, notably difficult to distinguish by species.
We are always really impressed by the books published by Verlag Friedrich Pfeil, and this is no exception. The excellent drawings by master technical artist Weber, carefully indicate the relevant anatomical distinctions between the 33 species covered, and the research is immaculate, providing all the facts required for identification. In addition there is plenty of information on the biology and natural history of the genus, plus a glossary of technical terms and many maps, tables and plates.
As well as appealing to marine biologists and shark enthusiasts, this volume has further application in the fields of fisheries, diving and other aquatic sports – in other words for anyone to whom positive species identification would be relevant.
It is hoped that this book will go some way to providing clearer records about threatened shark populations.
Dr Matthias Voigt studied marine biology at the University of Rostock (2000-2004), received his PhD from the University of Karlsruhe and now works at the University of Konstanz in the Department of Biology, Human Environmental Toxicology Group. He has had many experiences with sharks while diving, and as a member of the German Elasmobranch Society (D.E.G.), he tries to impart his experience, knowledge and fascination with sharks to the general public for increased understanding and protection.
Dietmar Weber is likewise a member of the D.E.G., and has a passion for the lifelike portrayal of animals, an art form which he has perfected over the last forty years. He is currently focused on sharks, skates and rays and his work has been featured in many publications. A graduate professional Technician for Biology i.e. Ecology, he has worked at the Research Institute for Forest Ecology and Forestry of Rhineland-Palatinate in Trippstadt since 1989.
A few weeks ago, I attended the 14th Biennial EURASLIC Meeting. EURASLIC is the European Association of Aquatic Sciences Libraries and Information Centres. This year’s meeting on the topic Caught in the “fishing net” of information was hosted by Cemagref, in Lyon, France. The weather was lovely, the food excellent, and it was a joy to spend a few days in the company of extremely knowledgeable librarians from many countries.
Among other things, I talked on the topic of hard-to-find books in Marine Biology (here is the Powerpoint Presentation of my talk). At NHBS, we have great experience in identifying and cataloguing specialist titles published by small publishers, and we know how much effort is involved in the process. In passing the information on to libraries through our Monthly Catalogue, our online catalogue, and topical newsletters, we hope to make these publications known to a much wider audience. Every week, we see new books that are not available to buy from mainstream booksellers.
Some examples of titles that should be on the shelves of every marine biology library in Europe, but are not always known to librarians, include:
Could you describe, for those who may not be aware, the Census of Marine Life?
The Census of Marine Life has been a 10 year program involving 2700 scientists from more than 80 countries around the world, focused on understanding the diversity, distribution, and abundance of life in the global oceans. The Census studied oceans past, oceans present, and oceans future, and found the ocean is richer, more connected, and changing more than we had realized.
How have you been involved in the project?
About 4 years ago, the Census leaders realized that a concerted effort was needed to bring together the many different elements of the project to produce a single coherent view of life in the ocean. They therefore asked me to Chair a group that would bring together Census results for a wide range of audiences, including the general public. One of the outputs of that effort is the book “Discoveries of the Census of Marine Life: Making Ocean Life Count”, which I wrote over the last year. It brings together over 1100 published scientific papers into a single story of the Census of Marine Life.
What does marine science hope to take forward from the knowledge gained from the project?
Knowledge of life in the oceans can help us sustain that life by making us better stewards and managers. In the past, our exploitation of life in the oceans has often proved unsustainable and with indirect and negative consequences to many species other than those targeted by our activities. We know that we have caused many changes, and that we must do better if we are to sustain a rich, healthy ocean environment that many believe is essential to productive fisheries and indeed for life on Earth. Globally, scientists now realize the rich diversity of life in the oceans is important and that by conserving species we can also improve the probability that we can sustain healthy oceans. Knowing where they move and congregate can help us identify areas that should be prioritized for protection. Ignorance has not been bliss for ocean life in the past, and we must do better.
Tell us about the book – what can a reader expect?
The book explains how the Census came about, what it discovered about life in the ocean, and why the information is important. The book includes many colour pictures illustrating the new species and diverse environments we studied, from the shoreline to the abyss. It explains how scientific data is collected, and what it tells us. In short, it tells the story of the Census from start to finish.
NHBS will be opening shop at the annual ICES Annual Science Conference for the first time next week. We are looking forward to meeting the marine science community and are bringing a few hundred books to browse and buy. Do drop by if you are there, we’ll be at Stand 5 at the La Cite Events Center in Nantes, 20 – 24 September.
“ICES was established in 1902 as an intergovernmental organization[…]ICES grew from a small body of likeminded researchers to an organization involving about 1600 scientists, with 20 Member Countries as well as several Observer Countries and non-governmental organizations. ICES fulfils its functions through an Annual Science Conference, about a dozen committees, close to one hundred working and study groups, several annual symposia, and a wide range of publications” From the ICES Strategic Plan – A Vision Worth Sharing(pdf)
Click on any of the images below to see a selection of recent and forthcoming books on marine science: