Category: seagrass mapping

Social mapping of Australian bays and conservation of Fish Aggregating Bryozoans

Guest Blog By Dr. Adrian Flynn(a) and Dr. Travis Dutka(b)

(a) Marine Ecologist and Director at Fathom Pacific

(b) Senior Lecturer at La Trobe University Department of Ecology, Environment, and Evolution.

The waters of Western Port in southeastern Australia are a recreational fishing haven and hidden beneath its turbid waters, a unique fragile seafloor community has been newly described.  Here, bryozoans, skeleton-forming filter-feeding organisms also known as ‘lace corals’, form expansive areas of reef that support a high diversity and abundance of macroinvertebrates important to snapper and other prized recreational fish species.

Figure 1: Underwater imagery of the bryozoan reefs revealed remarkable biogenic reef structures with abundant invertebrate life surrounded by large areas of bare sediment.

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BioBase Tip: Enable mobile location and see your location on BioBase maps.

Users of BioBase may be interested to know you can view your location on a BioBase map on your mobile device if you allow your browser to access your location

Navigate to your browser settings and allow location. Screenshot is from Chrome on Samsung Galaxy

Then log into your account at https://www.biobasemaps.com and navigate to your waterbody of interest and view the trip/merge. The gray dot should show up automatically on your location. Users may find this useful to field verify mapped areas or navigate to areas of interest. However, downloadable full Lowrance/Simrad charts are also available for both EcoSound and EcoSat giving the user a bigger map screen and more navigation/waypoint features.

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Portability Options for Your Lowrance

We recently sent out a mailer to our subscribers letting them know about the portability solutions that we have come up with.  Within minutes we received photos and details from many of our customers about how some they have used a little ingenuity to mount their Lowrance units on unique water craft.  Below we have a photo gallery of images that could help you design your own portable setup.  Of primary importance, however, is a mount that minimizes cavitation (air bubbles) directly under the transducer (e.g., surface noise) and maintaining a correct angle on the transducer.  See recent blogs on this topic. The preferable solution is to permanently mount separate transducers following DIY guidance like shown here on each survey craft and just move the Lowrance Elite or HDS display from boat to boat.  But if the job calls for a fully portable mount, we can help!

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BioBase 3 Step Process: Important Details!

A primary strength of BioBase EcoSound is its simplicity and that is reflected in the easy 3 step process of “Collect,” “Upload,” and “Analyze” (Figure 1).

Figure 1. The core process of EcoSound depicting the 3 Steps of “Collect,” “Upload,” and “Analyze.”

But there are many strategies that users can employ that will ensure that they will get the best EcoSound outputs possible.  We’ll focus on several questions under each of the three categories

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