Otter trawling fish assemblages at the Changyun Rise off central western Taiwan in 2017-2021

Sampling event
Versão mais recente published by Department of Oceanography, National Sun Yat-sen University, Kaohsiung Taiwan on jul. 3, 2023 Department of Oceanography, National Sun Yat-sen University, Kaohsiung Taiwan
Publication date:
3 de julho de 2023
Licença:
CC-BY 4.0

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Descrição

This dataset is derived from ten surveys with a total of 20 otter trawling sessions conducted at the Changyun Rise off the western coast of Taiwan between 2017-2018 and 2020-2021. The surveys were conducted at two sites, inshore (15-25 m depth) and offshore (40-50 m depth), utilizing a commercial otter trawling boat prior to the commencement of the offshore wind farm development. The dataset includes 8,026 individual fish, encompassing 51 families, 84 genera, and 128 taxa. Not only did the composition and abundance (ind./104m2) of fish species significantly differ between the inshore and offshore sites, but spatiotemporal variation was also observed in dominant fish species between 2017-2018 and 2020-2021. This dataset serves as a baseline for demersal fish prior to the development of the Changhua offshore wind farm. It offers critical information for subsequent environmental impact assessments, proposing mitigation measures, and establishing continuous monitoring networks.

Registros de Dados

Os dados deste recurso de evento de amostragem foram publicados como um Darwin Core Archive (DwC-A), que é o formato padronizado para compartilhamento de dados de biodiversidade como um conjunto de uma ou mais tabelas de dados. A tabela de dados do núcleo contém 20 registros.

Também existem 1 tabelas de dados de extensão. Um registro de extensão fornece informações adicionais sobre um registro do núcleo. O número de registros em cada tabela de dados de extensão é ilustrado abaixo.

Event (core)
20
Occurrence 
336

This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.

Versões

A tabela abaixo mostra apenas versões de recursos que são publicamente acessíveis.

Como citar

Pesquisadores deveriam citar esta obra da seguinte maneira:

Chen M (2023): Otter trawling fish assemblages at the Changyun Rise off central western Taiwan in 2017-2021. v1.1. Department of Oceanography, National Sun Yat-sen University, Kaohsiung Taiwan. Dataset/Samplingevent. https://ipt.taibif.tw/resource?r=owf-fish_cyr&v=1.1

Direitos

Pesquisadores devem respeitar a seguinte declaração de direitos:

O editor e o detentor dos direitos deste trabalho é Department of Oceanography, National Sun Yat-sen University, Kaohsiung Taiwan. This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License.

GBIF Registration

Este recurso foi registrado no GBIF e atribuído ao seguinte GBIF UUID: 00647bc1-bca9-4247-ab28-e1ef81fcbc93.  Department of Oceanography, National Sun Yat-sen University, Kaohsiung Taiwan publica este recurso, e está registrado no GBIF como um publicador de dados aprovado por Taiwan Biodiversity Information Facility.

Palavras-chave

Samplingevent; Changyun Rise; fish assemblages; baseline; wind farm

Contatos

Meng-Hsien Chen
  • Originador ●
  • Ponto De Contato ●
  • Pesquisador Principal
  • Professor
Department of Oceanography
  • 70, Leihai Rd, Gushen Dist.
Kaohsiung
TW
Chien Cheng Lai
  • Provedor Dos Metadados ●
  • Autor
  • research assistant
Department of Oceanography
  • 70, Leihai Rd, Gushen Dist.
Kaohsiung
TW
Kuo-Shu Chen
  • Autor
  • Associate research fellow
National Academy of Marine Research
  • 11F., No. 25, Chenggong 2nd Rd., Qianzhen Dist.
Kaohsiung
TW
Chih-Wei Chang
  • Autor
  • Research fellow
National Academy of Marine Research
  • 11F., No. 25, Chenggong 2nd Rd., Qianzhen Dist.
Kaohsiung
TW

Cobertura Geográfica

Sampling was conducted at two sites off Changhua, central western Taiwan.

Coordenadas delimitadoras Sul Oeste [24,032, 119,996], Norte Leste [24,136, 120,291]

Cobertura Taxonômica

N/A

Reino Animalia
Filo Chordata 
Class Actinopterygii, Chondrichthyes
Ordem Torpediniformes, Scorpaeniformes, Perciformes, Gasterosteiformes, Anguilliformes, Aulopiformes, Pleuronectiformes, Tetraodontiformes, Myliobatiformes, Rajiformes, Siluriformes
Família Sciaenidae, Platycephalidae, Synodontidae, Rhynchobatidae, Mullidae, Ariidae, Dasyatidae, Fistulariidae, Triacanthidae, Carangidae, Ophichthidae, Leiognathidae, Ephippidae, Diodontidae, Narcinidae, Cynoglossidae, Soleidae, Tetraodontidae, Sillaginidae

Cobertura Temporal

Data Inicial / Data final 2017-07-05 / 2021-09-02

Métodos de Amostragem

Surveys were carried out during daytime using a local commercial otter trawler, with a width of 8 m, body length of 70 m, body mesh size of 7 cm, and cod end mesh size of 4 cm. The trawler was operated at water depths ranging from 15-25 m at the inshore site, approximately 9 km off the coastline, and 40-50 m at the offshore site, approximately 42 km off the coastline. Trawling was conducted at a speed of 3-4 knots for 20 minutes at each site.

Área de Estudo Commercial otter trawler , a common practice in Changyun Rise (CYR), was conducted at two sites off Changhua, central western Taiwan. These include an inshore site (FS20) with a water depth of 15-25 meters (approx. 24°02'N, 120°16'E) and an offshore site (FS40) with a water depth of 40-50 meters (approx. 24°06'N, 120°00'E).
Controle de Qualidade The biological samples were identified to the lowest taxa according to Chen et al. (2019), Froese & Pauly (2021), and Shao (2021).

Descrição dos passos do método:

  1. The fish specimens caught by each trawl haul were immediately extracted from the catches, roughly classified by species and frozen at − 20°C on board. Subsequently, all fish specimens were transferred to the laboratory on land for taxonomic identification.

Metadados Adicionais

Identificadores alternativos https://ipt.taibif.tw/resource?r=owf-fish_cyr