Gastropoda |
Lepetellida |
Haliotidae
Environment: milieu / climate zone / गहराई सीमा / distribution range
पारिस्थितिकी
; गहराई सीमा 0 - 6 m (संदर्भ 865). Subtropical; 44°N - 28°N, 125°W - 113°W
Eastern Pacific: USA to Mexico. Historically occurred from Crescent City, California to southern Baja California, Mexico; however, current constricted range occurs from Point Arena, California to Bahia Tortugas, Mexico.
Length at first maturity / आकार / Weight / Age
परिपक्व अवधि: Lm ?, range 5 - ? cm Max length : 29.0 cm SHW पुल्लिंग / अलिंग; (संदर्भ 312); अधिकतम सूचित उम्र: 51 वर्षो (संदर्भ 8702)
Shell is dark blue-black and smooth. It is usually free from seaweed and other marine growth. The holes near the shell edge are used to carry of waste and release eggs and sperm (Ref. 312).
Fisheries: the meat is eaten fresh or dried; the shell is used as ornament or served as spoons or bowls (Ref. 312). Found under large rocks and in deep crevices in the middle to low intertidal zones. Herbivorous; known to grab drifting blades of brown algae with their tentacles; they also scrape diatoms and other microscopic algae from rocks. Usually feeds on various species of brown algae, but the smaller individuals ingest diatoms and coralline algae. Preyed on by humans. Under crowded conditions, adult abalones may graze the growth of marine plants from other shells (Ref. 312).
Broadcast spawners (Ref. 105180).
Gallivan, G. and J. Danforth 1999 Phylum Mollusca. Marine Science Institute. Http://216.239.51.104/search?q=cache:EEiLeA0OeAMJ:www2.ucsc.edu/simp/guide.pdf+Nuttalina+californica&hl=tl&gl=ph&ct=clnk&cd=8 [accessed 20/01/06] (संदर्भ 312)
IUCN Red List Status
(संदर्भ 130435: Version 2025-1)
CITES status (संदर्भ 108899)
Not Evaluated
CMS (संदर्भ 116361)
Not Evaluated
Threat to humans
Human uses
मात्स्यिकी: व्यापारिक
| FishSource |
साधन
अधिक जानकारी
PhysiologyOxygen consumption
Human RelatedStamps, coins, misc.
इंटरनेट स्रोत
Estimates based on models
Preferred temperature
(Ref.
115969): 12.2 - 18.6, mean 15.9 (based on 61 cells).
Fishing Vulnerability
Moderate to high vulnerability (55 of 100).