Survival of brook trout embryos in three episodically acidified streams

Journal Article · Sun Feb 28 23:00:00 EST 1993 · Transactions of the American Fisheries Society; (United States)

DOI:https://doi.org/10.1577/1548-8659(1993)122<0268:SOBTEI>2.3.CO;2· OSTI ID:5596695

Fiss, F C ^[1]; Carline, R F ^[2]

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1. The Pennsylvania State Univ., University Park (United States)
2. Fish and Wildlife Service, University Park, PA (United States)

We evaluated, for brook trout Salvelinus fontinalis in three streams that undergo episodic acidification during critical periods of embryo development, survival of embryos from egg disposition to preemergence in natural redds and survival of sac fry in toxicity tests done in situ. Twenty-five natural redds were used for comparisons among streams. Median survival to preemergence (range, 16-68%) was different (P [le] 0.05) among streams and was inversely related to stream concentration of inorganic monomeric Al. Survival to preemergence was not related to intragravel dissolved oxygen concentration, gravel quality, or depth or velocity of stream water at redd sites. Median survival of sac fry exposed to stream water for 39 d was different among streams (range, 51-95%) and was inversely related to stream concentration of inorganic monomeric Al. Episodic acidification could lead to declines in populations of brook trout by causing decreased survival of early life stages. 37 refs., 2 figs., 7 tabs.

• OSTI ID: 5596695
• Journal Information: Transactions of the American Fisheries Society; (United States), Journal Name: Transactions of the American Fisheries Society; (United States) Vol. 122:2; ISSN TAFSAI; ISSN 0002-8487
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540320* -- Environment
Aquatic-- Chemicals Monitoring &amp; Transport-- (1990-)
560300 -- Chemicals Metabolism &amp; Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ACID RAIN
ACIDIFICATION
ANIMALS
AQUATIC ORGANISMS
ATMOSPHERIC PRECIPITATIONS
BIOLOGICAL EFFECTS
EMBRYOS
FISHES
ONTOGENESIS
RAIN
STREAMS
SURFACE WATERS
TROUT
VERTEBRATES