Institute for Biodiversity Science and Sustainability

CAS Ichthyology Collection Database


CAS-ICH 245278 Gasterosteus aculeatus   [Catalog of Fishes]       ID by/date  Bell, Michael A. / 24 Jul 1979 Gasterosteidae
Counts (Alc/Skel/CS) 50/0/0 Prep Type - Preservative alc-50% isopropanol Other/Previous Number Size      
Collector; Vessel Bell, Michael A.; Buth, Donald G.  Field Number MAB79-19 Date Collected 24 July 1979 : 1100
Continent/Ocean North America Country United States State California County San Luis Obispo County
Water Body Huasna River Drainage Santa Maria River Island Group Island
Depth Width 5 m Salinity 0 Gear 10 ft, 1/8 inch mesh seine
Locality Huasna River, same locality as sampled earlier 1975
Latitude-Longitude   Bottom Type sand, gravel
Acc. Number 2018-X:19 Specimen Remarks m, f, juveniles. Fixed in 10% buffered (dolomite) formalin ~1 month.
Collecting Event Remarks Water temp. = 25 C. Fish collected from a series of shallow, algae choked pools. Many small Gasterosteus thrown back. Sunfish were abundant under algae in one place and smaller species absent except small Gambusia in open water adjacent to the algae. The Gasterosteus included many small individuals but no fry. There were gravid females and nuptially colored males. One male had distinctive red coloration on anal fin. Also caught Gamusia affinis, Lapomis cyanellus, cyprinids, and Rhinichthys osculus.