May 7, 2021

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Limited fishing zones support reef conservation — ScienceDaily

A entire world initially study within the Wonderful Barrier Reef Maritime Park has uncovered restricted fishing zones (yellow zones) are however significant conservation and fisheries management tools when paired with no-fishing zones.

Lead creator Dr April Corridor, from the ARC Centre of Excellence for Coral Reef Experiments at James Cook University (Coral CoE at JCU), mentioned partially protected yellow zones however include healthy figures of reef fish qualified for recreational and business fishing. These contain coral trout, tropical snappers, emperors and tuskfish.

Yellow zones limit, relatively than prohibit, fishing by fishing equipment constraints. For case in point, minimal line fishing is allowed with one particular rod or line and one hook for each person.

“We found the figures of well-liked fishing targets in these yellow zones are up to 69 per cent of what they are in the adjacent no-just take eco-friendly zones,” Dr Hall stated.

Inexperienced zones, where all fishing is prohibited, are additional frequently analyzed places. Their rewards to conservation and flow-on fisheries are previously perfectly-established.

Although there have been much less fishing targets in the yellow zones, both yellow and environmentally friendly zones experienced related abundances of non-target fishes and richness of fish species in general.

“Both of those eco-friendly and yellow zones supported a great diversity of fish species,” Dr Hall said.

Yellow zones have been established apart as partially safeguarded places in the Wonderful Barrier Reef Maritime Park Authority’s (GBRMPA) 2004 zoning system. Co-creator Darren Cameron, from GBRMPA, stated the Good Barrier Reef is one particular of the world’s major and most comprehensively analyzed maritime parks. Nonetheless, this investigation is the very first to specifically address yellow zones.

“We discovered yellow zones, in conjunction with eco-friendly zones, are an productive management tool. They add to marine park conservation plans whilst positively supporting fishing chances,” Mr Cameron explained.

The study took location inside the Hinchinbrook and Dunk Island location. The place has outstanding biodiversity and cultural heritage. It is an crucial region for recreational, professional and indigenous fishing. The review also considers zoning on inshore reefs, an region which has formerly obtained small notice.

The venture is a collaboration between Coral CoE at JCU and GBRMPA, as portion of Dr Hall’s Progress Queensland Put up-Doctoral Fellowship. The analyses kind part of her broader undertaking evaluating yellow zones throughout the Excellent Barrier Reef.

“Data from our venture will be essential for conservation and fisheries alike,” Dr Hall mentioned.

What is a Yellow Zone?

Fishing actions allowed in a Conservation Park (Yellow) Zone contain:

* Restricted line fishing (just one hand-held rod or a person hand-held line for every man or woman, with no far more than a single hook connected to that line)

* Trolling (no extra than 3 traces for each particular person and up to 6 hooks combined whole for every particular person)

* Restriction on the range of business fishing tender vessels

* Constrained spearfishing (snorkel only)

* Bait netting

* Constrained crabbing (four crab pots, collapsible traps or dillies)

* Limited gathering (contains oysters and bait, excludes acquire of coral, reside or lifeless and anemones).