Fishionary

A blog about fish words!

By Abigail Lynch

A blog about fish words!

Author: abby

Fingerling

December 13, 2019 by abby

Guest post: Logan Neu, University of Minnesota Twin Cities Fingerling is a broad term applied to a juvenile fish that is about the size of a finger.  The definition of what length classifies a fish as a fingerling varies between species, but the Food and Agriculture Organization (FAO) generally defines a fingerling as ranging in … [Read more…]

Posted in: F Tagged: aquaculture, growth, hatchery, juvenile, life history, stocking

Substrate

November 8, 2019 by abby

Guest post: Bonnie Myers, North Carolina State University, USGS Substrate in streams, rivers, lakes, and the ocean creates important fish habitat and plays an important role in multiple fish life history processes, daily activity, and prey availability. Substrate in aquatic habitats consists of surface and subsurface materials in the streambed, riverbed, or ocean bottom with different fish … [Read more…]

Posted in: S Tagged: habitat

Creel Survey

July 26, 2019 by abby

Guest post: Logan Neu, University of Minnesota Twin Cities A creel survey (also known as an angler survey) is a type of in-person survey performed by resource managers where an interviewer asks an angler questions about their fishing experience including questions such as the duration of the trip, how many fish they caught, and if … [Read more…]

Posted in: C Tagged: angler, interview, recreational fishing, survey

phylogeny

June 28, 2019 by abby

Phylogeny is the representation of evolutionary relationships, often displayed as a “tree” (i.e., branching diagram) where the most closely related organisms are connected by a node and more distantly related organisms have multiple steps back in the tree before they are connected.  Nodes are often characterized by biogeographic events and evolutionary innovations. In fishes, jawless … [Read more…]

Posted in: P Tagged: biogeography, chondrichthyes, ctenoid, cycloid, derived fishes, ganoid, genetics, osteichthyes, primitive fishes, rays, scales, sharks, swim bladder, teleost

Culvert

May 31, 2019 by abby

A culvert is essentially a tunnel to pass flowing water, typically a small stream, under a man-made structure, usually a road.  Depending on the size, placement, and design of a culvert, the impacts to a stream channel vary.  These impacts, in turn, can affect fish habitat and fish migration. Culverts are frequently barriers to fish … [Read more…]

Posted in: C Tagged: barrier, fish passage, migration, perched culvert

Biogeography

April 26, 2019 by abby

Biogeography is the study of patterns in distribution of fish (or other) species.  Biogeography provides an understanding of where populations are currently present and can help infer evolutionary relationships at a broad scale, including historic population isolation and colonization events.  Geologically, many species patterns can be tracked with plate tectonics.  The study of biogeography can … [Read more…]

Posted in: B Tagged: distribution, evolution, phylogeny, species

Longline

March 22, 2019 by abby

A longline a type of fishing gear that is generally used to target pelagic species, such as large tuna and billfish.  Baited hooks are attached to a long fishing line via shorter branch lines called snoods or gangions.  Longlines can be anchored or freely adrift (with tracking devices so they can be retrieved).  In certain open … [Read more…]

Posted in: L Tagged: bycatch, fishing gear, fyke net, gill net, pound net, trap net

Demersal

February 1, 2019 by abby

Guest post: Lauren Flynn, New Mexico State University From the Latin verb demergere, meaning ‘to sink’, demersal describes fish that live on or just above the ocean or lake floor.  It can also refer to a commercial fishery for groundfish and shellfish, which typically uses gear that is weighted so it sinks to the bottom.  … [Read more…]

Posted in: D Tagged: bottom fishery, bycatch, fishing gear, Pelagic zone

ITQ

November 30, 2018 by abby

An ITQ is an Individual Transferable Quota.  It is part of a quota system in which the managing agency divides up catch shares of the Total Allowable Catch (TAC) for the fishing season.  This essentially, creates a “stock market” like system for the fishery where ITQs can be bought and sold. Setting up this type of … [Read more…]

Posted in: I Tagged: fishing regulation, ITQ, quota, sustainable harvest, TAC

TAC

September 28, 2018 by abby

TAC is Total Allowable Catch.  This is the upper limit in the amount of fish, either by weight or number, that a fishery is allocated in a given season or year.  TACs can apply to the targeted fish and/or bycatch, where once the limit is reached the fishery is closed for the remainder of the applicable … [Read more…]

Posted in: T Tagged: bycatch, fishing regulation, ITQ, MSY, quota, sustainable harvest, TAC
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The views expressed in these posts are solely the views of the AFS member who wrote them and do not necessarily reflect the views of the American Fisheries Society (AFS), its officers, or the U.S. Geological Survey. Both organizations make no representation on the accuracy of opinions expressed in this blog. AFS merely hosts voluntary blogs as a place for members to share their personal views with other AFS members and to engage in friendly exchanges on fish topics.

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