
A 鈥渃itizen science鈥 project encouraging the public to report sightings of kekeno/NZ fur seals around the upper North Island has been extended into summer.
Between July 1 and November 22 last year, DoC conducted a public awareness campaign urging people to report sightings of kekeno around Coromandel and the Hauraki Gulf.
The citizen science project and call for sightings followed a high number of dead kekeno observed in the region during winter听听receiving more sightings of the seals reported by the public, DoC鈥檚 scientists would be able to learn more about the species and understand if the previous winter鈥檚 mortalities indicated a trend.
New Zealand鈥檚 kekeno population is growing in size and range 鈥 and becoming increasingly visible to New Zealanders.
Marine science adviser Laura Boren says DoC received 102 reports of kekeno sightings between July and November.
The sightings were spread across the upper North Island, with 36 in Waikato (including Coromandel), 27 in Auckland, 14 in or around the Hauraki Gulf, and seven each in Northland and Bay of Plenty. Of those, 21 sightings were groups of multiple seals.
Of the sightings, 81 were for live animals and 21 were for dead animals. This was a positive result because there were significantly fewer dead seals reported than over the previous winter and spring (more than 50 animals).
Images were provided by the public seal spotters for 65 of the sightings of both live and dead kekeno. Most were clear enough for assessment of age class and these helped DoC staff confirm sightings included kekeno of all age classes, from pup, juvenile, sub-adult to adult, similar to what was observed the previous year. The other sightings did not include images but still proved useful for the project, Laura says.
鈥淭he decision to extend the project into summer will deliver more valuable data on one of our most visible and interesting marine mammal species,鈥澨Laura says.
鈥淚n summer, more people are out enjoying the coasts of New Zealand and the ocean around us, so that鈥檚 more eyes helping us identify seals and provide us with sightings.鈥
In addition, the extension into summer allows us to look for kekeno across a very important time in their life history because summer is breeding season.
The project area has been expanded to cover areas north of Kawhia on Waikato鈥檚 west coast, and Whakatane on the east coast.
Otago University wildlife management masters student Nicola Roos is also contributing to the project, carrying out fieldwork on DoC vessels.
鈥淜ey areas of interest include Auckland, the Hauraki Gulf, and the Coromandel Peninsula. We will be gathering sightings data of any fur seals spotted within our study area,鈥 Nicola says.
鈥淭his data will be mapped to create an estimate of their distribution and determine key sites where kekeno like to hang out.鈥
Nicola鈥檚 fieldwork will also assess locations for potential release sites for rehabbed seals through DoC鈥檚 relationship with Auckland Zoo.
Auckland Zoo has a permit to rehab and release fur seals, but at the moment doesn鈥檛 use it to its full potential because we need to identify release sites that would improve the chance of successful rehabs. The project work will help DoC identify potential release sites and better plan for this activity.
Identifying breeding areas or locations where multiple sub-adult seals haul out reliably will enable us to identify potential release sites.
Laura says DoC welcomes reports of sightings of all seals 鈥 either live or dead 鈥 from around the upper North Island.
Information and photos of all dead seals found means local DoC staff can assess whether the specimen meets the criteria for necropsy.
The key factor is freshness 鈥 the fresher the specimen, the greater chance of determining the cause of death.
鈥淔rom those necropsies, we鈥檒l be able to gather important information on the species, why some of the individuals have died, and what we can do going forward.
鈥淔or this reason, it鈥檚 important to report as quickly as possible.鈥
Regardless, all reports, images and information collected will help build understanding of the kekeno population.
In reporting kekeno sightings and providing photographs, people should听take photos of the whole animal from several angles, including for deceased animals one looking straight down from above and with something for scale, and note the date, location, and if the animals is tagged before sending to听[email protected].
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