Fishionary

A blog about fish words!

By Abigail Lynch

A blog about fish words!

anadromous

Alevin

August 19, 2022 by abby

Guest post: Shemaiah Kentish, George Mason University An alevin is a newly hatched salmon or trout that still has its yolk-sac attached. The yolk-sac provides the alevin nourishment for the first 2-3 weeks after hatching. Typically, at this life stage, salmon or trout will stay in the gravel but they might be pushed into open … [Read more…]

Posted in: A Tagged: anadromous, salmon, trout

Amphidromous

May 21, 2021 by abby

An amphidromous fish is a type of diadromous fish which migrates between fresh and saltwater.  Unlike anadromous and catadromous fish, which migrate explicitly for the purposes of breeding, amphidromous fish migrate for other purposes.  A typical cycle of amphidromy includes eggs hatching in freshwater or estuaries, larvae drifting out into the open ocean to feed … [Read more…]

Posted in: A Tagged: anadromous, catadromous, diadromous, marine and fresh water

Smoltification

May 19, 2017 by abby

Guest post by Emily Argo Each year adult salmon migrate upstream to spawn (lay eggs) putting into motion their offsprings’ journey from hatching to making their way back to the ocean as juveniles. In addition to being a spectacular event to witness, these migrations also play a central role in ecosystem health. Over 100 different … [Read more…]

Posted in: S Tagged: anadromous, parr, salmon, smolt

Diadromous

February 27, 2015 by abby

Diadromous fish migrate between fresh and salt water.  This term, coined by George S. Myers in 1949, refers to both anadromous and catadromous fishes.  Diadromous life history strategies have evolved in numerous fish taxa.  The complex life cycles do require complex osmoregulatory adaptation but the advantages of the given environments for specific life stages of … [Read more…]

Posted in: D Tagged: anadromous, catadromous, diadromous

Anadromous

December 5, 2014 by abby Leave a Comment

An anadromous fish hatches and spawns in fresh water but spends most of its life in the salt water.  This dual life cycle allows the younger fish to grow and feed in the less perilous fresh water habitats (fewer predators in the smaller systems) and the older, larger fish to grow and feed in the marine … [Read more…]

Posted in: A Tagged: anadromous, diadromous, marine and fresh water, salmon, striped bass

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