dcsimg

Diagnostic Description

provided by Fishbase
Patterns of sensory papillae require detailed description. Pronounced sexual dimorphism. Anterior nostril a short tube. Pectoral fin uppermost rays within membrane. Males: with prominent front canine teeth; pelvic disc complete and deep; 1st dorsal with only 2 with rays. Females: pelvic disc reduced or lacking; 1st dorsal absent or rudimentary. Vertebrae 30(29-31).
license
cc-by-nc
copyright
FishBase
Recorder
Susan M. Luna
original
visit source
partner site
Fishbase

Life Cycle

provided by Fishbase
Males guard eggs in empty tubes of larger worms, such as Chaetopterus. Adults die after breeding (Ref. 4696).
license
cc-by-nc
copyright
FishBase
Recorder
Susan M. Luna
original
visit source
partner site
Fishbase

Morphology

provided by Fishbase
Dorsal spines (total): 2 - 3; Dorsal soft rays (total): 18 - 20; Analspines: 1; Analsoft rays: 20 - 21
license
cc-by-nc
copyright
FishBase
Recorder
Susan M. Luna
original
visit source
partner site
Fishbase

Trophic Strategy

provided by Fishbase
Males are bottom-living during breeding season (Ref. 4696).
license
cc-by-nc
copyright
FishBase
Recorder
Susan M. Luna
original
visit source
partner site
Fishbase

Biology

provided by Fishbase
Benthic and free swimming (Ref. 92840). This occasionally territorial species occurs in coastal waters, over shell, sand, or mud bottoms; males bottom-living during breeding season. Feed on zooplankton (Ref. 5204). Spawning takes place when 1 year old. Adults die afterwards. Eggs are laid in the empty tube-worms and are guarded by the male (Ref. 35388). Eggs are pear-shaped (Ref. 4696).
license
cc-by-nc
copyright
FishBase
Recorder
Christine Papasissi
original
visit source
partner site
Fishbase

Importance

provided by Fishbase
fisheries: of no interest
license
cc-by-nc
copyright
FishBase
Recorder
Christine Papasissi
original
visit source
partner site
Fishbase

Crystal goby

provided by wikipedia EN

Crystallogobius linearis, the crystal goby, is a species of goby native to the Atlantic coasts of Europe and the Mediterranean Sea where it can be found at depths of from 1 to 400 metres (3.3 to 1,312.3 ft). Males of this species grow to a length of 4.7 centimetres (1.9 in) SL while females only reach 3.9 centimetres (1.5 in) SL. This species is the only known member of its genus.[2] The name Crystallogobius comes from the Latin words cristallum, meaning "crystal", and gobius, meaning gudgeon.[3]

Distribution

Crystal gobies can be found in the Northeastern Atlantic Ocean off the coast of Europe from Norway down to Spain, and even off the mainland on Madeira, Portugal. Additionally, they can be found throughout the Mediterranean off the coast of Europe from Spain to Turkey.[1] They live on the coast and just offshore in water no deeper than 400 meters.[4]

Description

The Crystal goby gets its name from the glassy, see-through appearance of its body. It was first described by Düben and Koren in 1846. Crystal goby males' first dorsal fins are reduced and they exhibit large caniform teeth. On the other hand, females do not have dorsal fins. Neither males nor females have scales.[4] Crystal gobies have swimbladders and their alimentary canals are rather short and straight.[4] There is sexual dimorphism in this species due to males growing up to 4.7 cm (1.9 in) and females growing up to 3.9 cm (1.5 in).[5] They only live about 1 year as they die after breeding.[4] Additionally, they have 2-3 dorsal spines, 18-20 dorsal soft rays, 1 anal spine, and 20-21 anal soft rays.[6]

Fishing

There is not much data suggesting that this species is fished very much, which most likely has to do with its relatively small size compared to other fished species. However, there is data that shows they were fished in the Ligurian Sea by artisanal fishers using beach-seines from Camogli and Sestri Levante in Italy. Additionally, there is evidence of Crystal gobies being sold in Barcelona, Spain.[1] Although they are caught and sold, they seem to be by-catch and therefore not targeted by the fishing industry.[4]

Reproduction

Crystal gobies are an "annual" species which means that they die after reproducing. The eggs are demersal and can be found in the tubes of polychaetes and serpulids. It has been suggested that spawning occurs between May and September, with the Northeastern Atlantic Crystal gobies spawning before the Mediterranean ones. Crystal gobies are unique because the females can be sexually mature at only 4 months, which is relatively fast for gobies. They are able to reproduce at small body sizes with some larval anatomical features still present. The fact that this species reproduces so young and with some larval features may explain their anatomy.[4]

References

  1. ^ a b c Kovacic, M.; Williams, J.T. & Herler, J. (2014). "Crystallogobius linearis". IUCN Red List of Threatened Species. 2014: e.T198654A45102461. doi:10.2305/IUCN.UK.2014-3.RLTS.T198654A45102461.en.
  2. ^ Froese, Rainer; Pauly, Daniel (eds.) (2013). "Crystallogobius linearis" in FishBase. June 2013 version.
  3. ^ Christopher Scharpf; Kenneth J. Lazara (29 May 2018). "Order GOBIIFORMES: Family GOBIIDAE (a-c)". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 19 August 2018.
  4. ^ a b c d e f La Mesa, M. (2001). "Age and growth of Crystallogobius linearis (von Düben, 1845) (Teleostei: Gobiidae) from the Adriatic Sea". Scientia Marina: 375-381.
  5. ^ "Crystallogobius linearis (Düben, 1845)". WoRMS. World Register of Marine Species.
  6. ^ Wheeler, A. (1992). "A list of the common and scientific names of fishes of the British Isles". Fish Biology. 41 (Suppl. A): 1-37.
license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN

Crystal goby: Brief Summary

provided by wikipedia EN

Crystallogobius linearis, the crystal goby, is a species of goby native to the Atlantic coasts of Europe and the Mediterranean Sea where it can be found at depths of from 1 to 400 metres (3.3 to 1,312.3 ft). Males of this species grow to a length of 4.7 centimetres (1.9 in) SL while females only reach 3.9 centimetres (1.5 in) SL. This species is the only known member of its genus. The name Crystallogobius comes from the Latin words cristallum, meaning "crystal", and gobius, meaning gudgeon.

license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN