Why the genitive case...

[quem98.livejournal.com]

I'm really confused as to how the last word fits into the rest of the sentence... The genitive case here completely throws me for a loop.

Рыбу ловили острогой, удочками, сетными орудиями промысла.

My best (and most likely incorrect) guess..

Fish were caught with harpoons, tackle, and trap nets of trade.

*EDIT*

Thank you!

Comments

[oryx_and_crake]

орудиями чего? промысла
tools of what? of the trade (though here промысел means охотничий, рыболовный промысел - hunting or fishery)

сетные certainly means "made of nets"; it is a very rare word though, not used in everyday life

[oryx_and_crake]

So you probably may just say сети instead
---
I don't think so. There are many fishing tools that are made of netting but they are not nets (e.g. lobster pots). Anyway, I think quem98 is not composing a text but is translating one.

[quem98.livejournal.com]

I am translating. This is from a text I'm translating pro bono on the Teleuts, the history and anthropological characteristics of the ethnicity...

So the entire text is technical and official sounding.

Does промысла then refer only to the netting devices or all of the materials listed?

[oryx_and_crake]

сетными орудиями промысла means "fishing tools made of nets"
орудиями промысла - промысла does not refer to anything but tools

[anearlynovembr.livejournal.com]

I have no idea but it's definitely talking about a fish.

[salexey.livejournal.com]

I think "craft" is more suitable here than "trade".

[khathi.livejournal.com]

"Орудия промысла" is not as much an officialese, as just professional lingo. In russian fishery, ANY tools used for fishing, being it nets, dragues, hooks or pots, are called that. If they are made of netting, -- like nets or trawls -- they become "сетные орудия промысла". So in English that would be simply "fishery tools made of nets", as oryx_and_crake already stated.