Ponticola gorlap, Caspian bighead goby

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Ponticola gorlap (Iljin, 1949)

Caspian bighead goby
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Ponticola gorlap
Picture by Naseka, A.M.

Classificação / Names Nomes comuns | Sinónimos | Catalog of Fishes(Género, Espécies) | ITIS | CoL | WoRMS | Cloffa

> Gobiiformes (Gobies) > Gobiidae (Gobies) > Gobiinae
Etymology:

Environment: milieu / climate zone / depth range / distribution range Ecologia

marinhas; Água doce; estuarina demersal. Temperate

Distribuição Países | Áreas FAO | Ecossistemas | Ocorrências | Point map | Introduções | Faunafri

Eurasia: Caspian Sea; in Volga upriver to Astrakhan until 1977, spreaded out to Lakes Ivankovskoje and Rybinskoje (2000); invaded Don drainage (Black Sea basin) through Volga-Don canal (first record in 1972). Abundant in Lake Tsimlyansk and lower Don.

Tamanho / Peso / Idade

Maturity: Lm ?  range ? - ? cm
Max length : 32.6 cm TL macho/indeterminado; (Ref. 85452); common length : 12.0 cm SL macho/indeterminado; (Ref. 2058)

Descrição breve Morfologia | Morfometria

This species is distinguished from its congeners in the Caspian Sea basin by the following characters: 75-95 % of distance between its origin and anus; ctenoid scales completely cover predorsal area and nape; pelvic disc fraenum with angular lobes, fraenum length 1/6-1/2 of its width at base; scales in midlateral series 68-72 + 3-4; snout length 1.5-1.6 times in eye diameter; interorbital distance 0.8-0.9 times eye diameter; first branched ray of second dorsal about as long as penultimate ray; posterior part of first dorsal without black spot. This species is different from N. kessleri in the area in having a distinctive karyotype, some osteological characters and cycloid scales on opercle and anterior part of the nape (vs. ctenoid) (Ref. 59043).

Biologia     Glossário (ex. epibenthic)

Inhabitant of inshore areas, estuaries, brackish and fresh water of lagoons and lakes, large rivers, harbours, on rock (stone or firm sand) bottom; mainly on well vegetated bottom (Ref.13696, 59043). Most females spawn for the first time at 1 year, males at 2 years, in April-May, rarely until July. Adhesive eggs are deposited on stones, shells and aquatic plants and the males guard the eggs after hatching. Feeds mostly on small fish, as well as a wide variety of invertebrates (Ref.59043).

Life cycle and mating behavior Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas

Referência principal Upload your references | Referências | Coordenador | Colaboradores

Kottelat, M., 1997. European freshwater fishes. An heuristic checklist of the freshwater fishes of Europe (exclusive of former USSR), with an introduction for non-systematists and comments on nomenclature and conservation. Biologia, Bratislava, 52/Suppl. 5:1-271. (Ref. 13696)

Categoria na Lista Vermelha da IUCN (Ref. 130435)

  Preocupação menor (LC) ; Date assessed: 01 January 2008

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para o homem

  Harmless





Utilização humana

FAO - Publication: search | FishSource |

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Fontes da internet

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Consultar FishWatcher | CISTI | Catalog of Fishes: Género, Espécies | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genoma, nucleotídeo | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Árvore da vida | Wikipedia: ir para, procurar | World Records Freshwater Fishing | Registo zoológico

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5001   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01259 (0.00681 - 0.02326), b=3.24 (3.08 - 3.40), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Nível Trófico (Ref. 69278):  3.8   ±0.4 se; based on diet studies.
Resiliência (Ref. 120179):  Médio, tempo mínimo de duplicação da população 1,4 - 4,4 anos (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (23 of 100).