Upcoming Events
  1. Alliman Shield Round 6 – Bayview

    June 14 @ 07:00 - 16:00 AEST
  2. Alliman Shield Round 7 – Kurnell

    July 5 @ 07:00 - 16:00 AEST
usfa blog
605
bp-legacy,paged,page-template,page-template-blog-masonry,page-template-blog-masonry-php,page,page-id-605,paged-9,page-paged-9,bridge-core-2.2.2,tribe-no-js,page-template-var-www-html-prod-wp-content-themes-bridge-blog-masonry-php,ajax_fade,page_not_loaded,,qode-title-hidden,qode_grid_1300,side_area_uncovered_from_content,qode-child-theme-ver-1.0.0,qode-theme-ver-21.1,qode-theme-bridge,disabled_footer_bottom,wpb-js-composer js-comp-ver-6.1,vc_responsive,elementor-default,no-js
The day dawned calm and conditions looked terrific for the fourth competition of the 2015 Alliman Shield competition year. The boats & competitors arrived late (bloody winter!) but the sign on, safety talk & roll call went quickly and the divers made their way down to the boats only a few minutes after 8am.Alliman-Shield-2015-Gunnamatta-1 Alliman-Shield-2015-Gunnamatta-2
After conquering a few mental fears equalisation is normally the biggest obstacle that most spearfishers will encounter. The reason we need to equalise is because it bloody hurts you if you don’t. How’s that for a good enough reason? Seriously, hydrostatic pressure (10m ocean depth is equivalent to 1 mile high in the sky. We take approximately 10 seconds to arrive at 10m).  That’s why we need to equalise.  As you descend the water pressure increases hence the pressure increases inside your ear canal, hurting your tympanic membrane (ear drum) – you have to “equalise” this outside pressure by matching it with air pressure that you have inside you. Equalising maintains pressure balance between the middle ear space, the rest of the body and surrounding water.  The Eustachian tube comes into play here, this tube runs from the back of your nose to the air space of the middle ear. The tube is generally collapsed, opening when the “clearing” (equalising) process eventuates. When you experience the “crackle, pop” sounds you are equalising, relieving the pressure on the Tympanic membrane and sinus cavities. Correct technique and equalising before you experience discomfort is the key to comfortable spearfishing, and ensuring there is no chronic damage to your eardrums. [caption id="attachment_905" align="aligncenter" width="350"]Middle Ear Pressure Middle Ear Pressure[/caption]

Spear Fishing 1940       13 May Spear Fishing is rapidly becoming a leading sport amongst the youth of Innisfail. The spear employed, unlike the four-pointed spear...

Angles on Angling 1947       9th May 24 years old Alf Rowen, who conducts a bootmaking establishment in Crown Street Wollongong, has a natty fish catching...

SPEARFISHING COMPETITIONS Dear Sir I am the unrepentant hunter of fish, and manufacture equipment to hunt fish. I think most groups of spearfishermen ensure that...