Please select your home edition
Edition
Auckland On Water Boat Show

Guy Harvey leads expedition to study Mako Shark migrations

by John Bell on 10 Apr 2013
Tagging onboard LR Guy Harvey Research Institute
The tagging and tracking of shortfin mako sharks in late March off the coast of Isla Mujeres, Mexico is expected to provide scientists with remarkable and previously unknown details about the timing and long-distance migratory movements of this vulnerable species in the Atlantic Ocean.

An expedition headed by the Guy Harvey Research Institute (GHRI) at Nova Southeastern University, tagged mako sharks with the satellite reporting SPOT tags. Unlike the more commonly used pop-up satellite PAT tags, SPOT tags should provide multiple and more accurate daily detections, providing scientists with a high resolution view of the migration patterns of this animal.

For a visual snapshot of the expedition, go to https://vimeo.com/63367194

Given the high fishing pressure on makos for their fins and meat, this species is showing declining population trends in parts of its range, which has resulted in the species being listed as 'Vulnerable' on the IUCN Red List of threatened species.



Last year a shortfin mako shark dubbed 'Carol' in New Zealand was tagged with a SPOT tag and is showing an amazing journey that has covered nearly 9,500 miles over ten months, averaging 60 miles per day during some parts of her migration. GHRI collaborated with the New Zealand National Institute of Water an Atmospheric Research (NIWA) on the tagging of 'Carol' and three other mako sharks off New Zealand.

Internationally known marine artist, scientist and conservationist, Dr. Guy Harvey, who returned to Isla Mujeres for the second consecutive year, described the most recent expedition in his online blog, which can be found at http://www.GuyHarvey.com/guys-journal.

Shark biologist Dr. Brad Wetherbee with GHRI and the University of Rhode Island, angler and WTVJ NBC 6 weather anchor Jennifer Reeves and Emmy Award winning producer/cameraman George Schellenger accompanied Dr. Harvey. The team worked with Captain Anthony Mendillo of Keen M International.

Dr. Mahmood Shivji, Director of the GHRI at Nova Southeastern, said the newly tagged shark, named 'Jen' for Jennifer Reeves (who caught the shark), can soon be followed on a new website combining all tracking projects into one integrated portal.



'The public interest in GHRI’s shark movement research has been amazingly strong,' said Dr. Shivji, who reported that the New Zealand online mako satellite-tracking site has received nearly 73,000 unique visitors over the last seven months, equating to an average of over 10,000 unique visitors per month.

'We hope to replicate the tremendous success of our New Zealand research in the Atlantic,' said Dr. Harvey. 'Now we have a new group of Atlantic makos to follow which should reveal much new information on their seasonal movements in our part of the world, including the route that they take and distances traveled.'

About the Guy Harvey Research Institute at NSU:

Established in 1999, the Guy Harvey Research Institute (GHRI) at NSU is collaboration between the renowned marine artist, scientist and explorer, Dr. Guy Harvey, and Nova Southeastern University's Oceanographic Center. The mission of the GHRI is to provide the scientific information necessary to understand, conserve, and effectively manage the world's marine fishes and their ecosystems. The GHRI is one of only a handful of private organizations dedicated exclusively to the science-based conservation of marine fish populations and biodiversity. The research, education and outreach activities of the GHRI are supported by the Guy Harvey Ocean Foundation, AFTCO Inc., extramural research grants, philanthropic donations by private businesses and individuals, and NSU. http://www.nova.edu/ocean/ghri/index.html

About Guy Harvey Ocean Foundation:

The Guy Harvey Ocean Foundation is a leader in international efforts to protect our oceans and marine environments. The GHOF advocates for sustainable fishing practices, funds inspired scientific research and supports innovative educational programs. Our principle objective is to help ensure that future generations will enjoy and benefit from a naturally balanced ocean ecosystem where fish and other marine wildlife flourish. GHOF has led or assisted include the establishment of a shark sanctuary in Bahamian federal waters, the addition of five species of sharks to Florida’s protected list and the enactment of the U.S. Billfish Conservation Act. In the fall of 2012, the GHOF led a petition drive in support of the National Conservation Law in the Cayman Islands. The GHOF also assisted the launch of the first catch-and-release fishing tournament in Venezuela.

InSunSport - NZAbell Point Marina 660x82 MoorBarz Optics - Floaters

Related Articles

'Welcome' says 5 Gold Anchor globally accredited marina Abell Point
5 Gold Anchor Global Marina Accreditation earlier this month team at Abell Point Marina added another level of service Since attaining 5 Gold Anchor Global Marina Accreditation earlier this month the team at Abell Point Marina have added another level of service to their offer to further enhance the customer experience and reconfirm Abell Point as the destination marina of choice in the Whitsundays.
Posted on 27 Sep
14m offshore fishing cat to be presented
A 14 metre, offshore-capable, game fishing catamaran design will be presented at this year’s Auckland on Water Boat Show A 14 metre, offshore-capable, game fishing catamaran design will be presented at this year’s Auckland on Water Boat Show. The boundary-pushing design is a collaboration between Kit Carlier Design and Stimson Yacht Design, who will exhibit together for the first time at the show, which runs from 29 September to 2 October, 2016.
Posted on 23 Sep
New Zealand Maritime radio channels set to change on 1 October
Before you head out on the water next summer there are some important maritime radio changes you need to know about. Before you head out on the water next summer there are some important maritime radio changes you need to know about. On 1 October 2016, New Zealand is changing some maritime VHF repeater channels, and NowCasting weather services, to make space for new international ship tracking and data services, and to make sure our VHF radio services are compatible with the rest of the world.
Posted on 20 Sep
New Zealand Maritime radio channels set to change on 1 October
Before you head out on the water next summer there are some important maritime radio changes you need to know about. Before you head out on the water next summer there are some important maritime radio changes you need to know about. On 1 October 2016, New Zealand is changing some maritime VHF repeater channels, and NowCasting weather services, to make space for new international ship tracking and data services, and to make sure our VHF radio services are compatible with the rest of the world.
Posted on 20 Sep
Announcing the launch of the Simrad® GO9 XSE with radar capability
It has intuitive, multi-touch controls that smartphone and tablet users will instantly find familiar and easy to use. Packed full of features, it has intuitive, multi-touch controls that smartphone and tablet users will instantly find familiar and easy to use. Boaters can view charts, add waypoints and see key information on a large 9-inch screen.
Posted on 15 Sep
New anchor lights from Hella Marine offer efficiency and reliability
The new NaviLED 360 Pole series anchor lights by Hella Marine offer exceptional efficiency and unmatched reliability. The new NaviLED 360 Pole series anchor lights by Hella Marine offer exceptional efficiency and unmatched reliability. By law all anchored boats are required to show a light at night. Safety dictates the light be reliable, clearly visible and with a minimum power drain.
Posted on 4 Sep
Precision fishing weapons
Bar Crusher’s understanding of what serious anglers want in fishing boat is as evident as ever in its latest range Bar Crusher’s understanding of what serious anglers really want in a trailerable offshore fishing boat is as evident as ever in its latest range of hard top Fishing Weapons.
Posted on 2 Sep
The sound of a healthy reef
A new study from WHOI help researchers understand ways that marine larvae use sound as cue to settle on coral reefs A new study from the Woods Hole Oceanographic Institution (WHOI) will help researchers understand the ways that marine animal larvae use sound as a cue to settle on coral reefs. The study, published on August 23rd in the online journal Scientific Reports, has determined that sounds created by adult fish and invertebrates may not travel far enough for larvae —which hatch in open ocean
Posted on 31 Aug
A slithery ocean mystery
One sentence in a New York Times article caught Larry Pratt’s eye and set the scientific investigation in motion. One sentence in a New York Times article caught Larry Pratt’s eye and set the scientific investigation in motion. The story was about fishermen harvesting juvenile eels in coastal waters of the Gulf of Maine and selling them for more than $2,500 a pound, mostly for unagi in Asian fish markets.
Posted on 30 Aug
Stacer’s Ocean Rangers are now tougher than ever
The new 589 Ocean Ranger now features more freeboard at 730mm, bringing the model in line with the rest of the range. Due to customer demand Stacer has released two new models in their plate range to now include the 589 and 619 Ocean Ranger Hard Tops offering a more budget friendly option that is still packed with power and strength.
Posted on 17 Aug