Historical assessments of Coastal Demersal Fish Stock for Trinidad and Tobago

doi:10.15468/j7hua7

Historical assessments of Coastal Demersal Fish Stock for Trinidad and Tobago

Citation

Institute of Marine Affairs (2023). Historical assessments of Coastal Demersal Fish Stock for Trinidad and Tobago. Institute of Marine Affairs. Sampling event dataset https://doi.org/10.15468/j7hua7 accessed via GBIF.org on 2024-12-14.

Description

This historical event dataset is a combination of three events sampling that took place during the years 1990 - 2004 in Trinidad and Tobago.

Purpose

The dataset was developed to showcase historical fish occurrence data for a specific period in time for Trinidad this data can be used with other datasets to showcase the abundance and biodiversity of fish species for Trinidad.

Sampling Description

Study Extent

Sampling was done along the western coastline within the Gulf of Paria and within the Godineau Swamp.

Sampling

1976 - 1990 Event - Land, sea and where necessary aerial surveys were conducted. Samples of the dead organisms were collected where possible, placed in bags, and stored on ice for transport to the lab. 1990 Event - Samples were obtained by trawling in the northeastern Gulf of Paria in depths of 40-42 m and on the north coast from the first Boca to Maracas Bay in depths of 50 -70m. Trawling was done from the MV Provider, a 27 m long vessel which was equipped with two side trawls. The mesh sizes were 3.8 cm in the cod end and 5cm in the wings. Sampling took place from February to November 1981. 2004 Event - Stations were sampled once in the dry season during April to May and once in the wet season (June - November) 2002. Fish were collected using a trammel net (6 cm stretched inner, 30 cm stretched outer mesh, 15 m width, 2 m depth) for channels over 1.5 m deep and a push seine (1 cm stretch, 15 m wide, 2 m depth) for shallower waterways (<1.5 m deep).

Quality Control

Ten sampling stations were selected in a stratified random manner. Stations were sampled once in the dry season from April to May and once in the wet season (In Trinidad, the dry season extends from December to May and the wet season from June to November) from July to September 2002.

Method steps

Fish were collected using a trammel net (6 cm stretched inner,30 cm stretched outer mesh,15 m width, 2 m depth)for channels over 1.5 m deep and a push seine (1 cm stretch,15 m wide,2 m depth)for shallower waterways (<1.5 m deep). Trammel nets were set for fishing between dusk into nightfall (6-10 P.M.) under conditions of dim moonlight for a soak time of three hours. Seine sampling was conducted during the day, where stations were sampled with a single drag. Temperature, dissolved oxygen, salinity, and pH were measured using an automatic meter (YSI multiparameter sonde, XLM 1000)and bank vegetation was noted at each station immediately prior to sampling.

Additional info

These publications also have physio-chemical data to accompany the biodiversity data.

Taxonomic Coverages

N/A

Chordata
rank: phylum
Haemulidae
rank: family
Pristigasteridae
rank: family
Acanthuriformes
rank: order
Congridae
rank: family
Albuliformes
rank: order
Albulidae
rank: family
Ariidae
rank: family
Carcharhinidae
rank: family
Dasyatidae
rank: family
Fistulariidae
rank: family
Batrachoidiformes
rank: order
Serranidae
rank: family
Syngnathiformes
rank: order
Carangidae
rank: family
Engraulidae
rank: family
Animalia
rank: kingdom
Perciformes
rank: order
Eupercaria incertae sedis
rank: order
Malacanthidae
rank: family
Carangiformes
rank: order
Carcharhiniformes
rank: order
Ephippidae
rank: family
Anguilliformes
rank: order
Diodontidae
rank: family
Antennariidae
rank: family
Batrachoididae
rank: family
Lutjanidae
rank: family
Gerreidae
rank: family
Dorosomatidae
rank: family
Lophiiformes
rank: order
Cynoglossidae
rank: family
Centropomidae
rank: family
Pleuronectiformes
rank: order
Clupeiformes
rank: order
Carangaria incertae sedis
rank: order
Tetraodontiformes
rank: order
Gymnuridae
rank: family
Ophidiiformes
rank: order
Myliobatiformes
rank: order
Ophidiidae
rank: family
Paralichthyidae
rank: family
Siluriformes
rank: order

Geographic Coverages

Gulf of Paria, Trinidad and Tobago

Bibliographic Citations

Heileman, L. I., & Siung-Chang, A. (1990). An analysis of fish kills in coastal and inland waters of Trinidad and Tobago, West Indies, 1976-1990. Caribbean marine studies, Carenage, Trinidad and Tobago 1(2), 126-136. -
Manickchand-Heileman, S., & Julien-Flus, M. (1990). Species composition and seasonality of a coastal demersal fish stock in Trinidad, West Indies. Caribbean Marine Studies,Carenage, Trinidad and Tobago, Vol.1 -
Ramsundar, H., 2005. The distribution and abundance of wetland ichthyofauna, and exploitation of the fisheries in the Godineau Swamp, Trinidad-Case study. Revista de Biología Tropical, 53, pp.11-23. - http://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S0034-77442005000300006&lng=en&tlng=en

Contacts

Institute of Marine Affairs
originator
Institute of Marine Affairs
Hilltop Lane
Chaguaramas
TT
Telephone: 8683504942
email: pnelson@ima.gov.tt
homepage: https://www.ima.gov.tt/

Paul Nelson
point of contact
Institute of Marine Affairs
Hilltop Lane
Chaguaramas
TT
Telephone: 8683504942
email: pnelson@ima.gov.tt
homepage: https://www.ima.gov.tt
userId: https://orcid.org/0000-0001-6221-4600

Institute of Marine Affairs
administrative point of contact
Institute of Marine Affairs
Hilltop Lane
Chaguaramas
TT
Telephone: 8686344291
email: pnelson@ima.gov.tt
homepage: https://www.ima.gov.tt/