| CAS-ICH 245261 | Gasterosteus aculeatus [Catalog of Fishes] | ID by/date | Bell, Michael A. / 25 Aug 1977 | Gasterosteidae | |||
| Counts (Alc/Skel/CS) | 50/0/0 | Prep Type - Preservative | alc-50% isopropanol | Other/Previous Number | Size | ||
| Collector; Vessel | Bell, Michael A.; Haglund, Thomas R. | Field Number | MAB77-82 | Date Collected | 25 August 1977 : 1115 | ||
| Continent/Ocean | North America | Country | United States | State | California | County | Ventura County |
| Water Body | Sespe Creek | Drainage | Santa Clara River | Island Group | Island | ||
| Depth | Width | 5.5 m | Salinity | 2.5 | Gear | 10 ft, 1/8 inch mesh seine | |
| Locality | Sespe Creek, downstream of Hwy 126, most downstream pool remaining, 15.1 km from confluence with Santa Clara River | ||||||
| Latitude-Longitude | 34.3871778°N, 118.9530111°W | Bottom Type | algae over cobbles and sand | ||||
| Acc. Number | 2018-X:19 | Specimen Remarks | m, f, juveniles. Fixed in 10% buffered (dolomite) formalin ~1 month. | ||||
| Collecting Event Remarks | Water temp. = 18 C. This is a 24 m long pool with a small inflow riffle. The level of the pool apparently had declined rapidly recently as there was much dead algae higher on bank (to 50 cm above present level) and lower banks were covered with live green filamentous algae to a height of about 35 cm. Decline in water level had caused a decrease in pool volume of 65-70% and surface area by about 50% since it stopped flowing into the next pool downstream. In a separate bottle, dead sticklebacks which were common, more collected for comparison to live sample. Numerous fish infected with Schistocephalus or ectoparasites. A green heron was seen earlier in flight near here and it attempted to return. One cobble had a large recent bird feces. Belostomatid also common. Later a dead stickleback with parallel lines on it (beak mark?) found. This pool is 100% shaded by willows until almost noon. Also caught Gila orcutti, Pimephales promelas, Gambusia affinis, and Catostomus santaanae. | ||||||