Posts by Dan

Nah, a water rescue/CPR course together with watching this video would have you better prepared.

Because both Neil and Bob hunt the shallows.

Fish population is replenished when fish move from "safe" areas into areas where they can be harvested. If there are no safe areas then there's nowhere for fish to repopulate from. A depth limitation based on what a person can dive holding their breath creates a safe area. It's so simple I don't know how you don't get it.

Quote from Hardline

It's documented.

PLOS ONE: Depth Refuge and the Impacts of SCUBA Spearfishing on Coral Reef Fishes

This excerpt from the document supports what Chase is saying. It's really just simple logic.

Quote

Deeper waters that are inaccessible to certain fishing methods could provide protection to reef fish in the same way as spatial closures by allowing spillover of adults or recruits. This was exemplified in the Californian abalone fishery, where a ban on the use of SCUBA allowed a greater biomass of legal-sized abalone to accumulate in deeper water, providing localised recruitment over time and supporting high catch yields in shallower waters [28]. In locations where a ban on SCUBA was not implemented, low numbers of reproductively active individuals across the depth range resulted in a collapse of the fishery [28]. As SCUBA spearfishers can access deep-water reefs and selectively target larger individuals, the use of this fishing method may limit the reproductive benefits from remaining populations that have been overexploited at shallow depths. Depth refuge from fishing pressure may be a widespread effect, especially for tropical artisanal fisheries that primarily use gears such as spear guns and nets to target shallow water populations [8], [27]. Previous studies focused on depth refuge for coral reef fish have based their conclusions on differences in species richness and the presence/absence of certain species [26], [27]. Our study expands on this by using two classic fishery indicators, biomass and length, in addition to changes in assemblage structure. While there is some evidence that SCUBA spearfishing is still practiced in the CNMI (albeit at a reduced level; [9]), we found lengths of scarines and acanthurids to be of a greater size in deeper waters of CNMI compared to Guam. Similarly, several fished species were positively correlated with this deeper refuge at deep sites where SCUBA spearfishing is banned, while there was little difference in assemblage structure in shallow waters where snorkel spearfishing is practiced. It is apparent from these results that deeper waters provide refuge from fishing impacts when protected from deep water fishing methods such as SCUBA spearfishing.

It's a piece of crap. I'd rather tow a tire innertube which is itself a PITA.

Why are you getting worked up about this Ron? After all this is a freedive spearfishing community. It's understandable that his ideas come from the frustration of seeing scuba divers with lights and scooters make it impossible for fish to find refuge. Breath hold spearfishing seems to be a reasonable boundary everywhere else in the world.

Chase, I don't consider spearfishing a sport.

Here's one of Mark.

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I'm familiar with the omer Cayman ET. The gun is well designed and built, all the components fit and work well together. It's a nice looking gun.

But I feel it fails to occupy any necessary niche. The whole purpose of a pipe speargun is to be light and maneuverable with good power and range, and be relatively inexpensive. The Cayman ET is heavy (hard to track), cumbersome (inconvenient to swim with) and expensive. At the same time adding nothing to power and accuracy, only the convenience of not having the shaft fall off the track as you load it. The latter can be achieved with a deep track.

Nice Harry, I'm going to look forward to this thread.

Candy for the eyes, thanks Frank.

Thanks.

Why did you go with a polespear vs. a speargun? Fish can be far and few between here. When you finally see one range will probably be a factor.

Is that a pole spear? How long is it?

Nice fins, they look like mine.

But doesn't take a powerhead.

C'mon countersink screws would be plenty strong for this application, this ain't a bayonet.

Cool vid. Nice to see so much life in one spot.

I use it to brain fish.

Just be mindful if you find yourself handling the shooting line in front of the gun with a powerful fish on the shaft. If the fish makes a rush the gun can come up behind you and stick you with the spike. Ask me how I know

Welcome back.

As you know I'm a fan of the shark spike. This is the original drawing that I sent Jeff (Tin Man) which started him on the shark spike idea (see this thread http://spearfishing.world/spea…spike-euro-spearguns.html)

which resulted in this..

and later morphed into the muzzles you spoke of.

The new design you're posting about was also conceptualized by me. I never spoke to Wood Guy about it, but I'm sure I did with Jeff. In any case I dropped the integrated spike/line anchor idea because it's simply not needed on a wood gun. It unnecessarily complicates the build because the whole thing should be countersunk. Instead, a small piece of shaft and a 1" hole in the front of the muzzle is all it takes. You'd be wasting your money if you buy those line anchors.

A nod to Ray Odor, maker of the original kill spike is appropriate. It's amazing he used this same poor quality pic on his website all these years.

and one of his that I modified to fit a Riffe stock (years ago).

Lastly the hole in the muzzle for the shark spike concept expanded to the Speardiver stainless steel speargun muzzle.

This project is on hold for the time being, thanks.

Wow! awesome pics Frank. Please add them to your album.