A seven-year monitoring on fish community around the Qigu Lagoon located on the southwest coast of Taiwan

Données d'échantillonnage
Dernière version Publié par Taiwan Biodiversity Research Institute le avr. 1, 2025 Taiwan Biodiversity Research Institute
Date de publication:
1 avril 2025
Licence:
CC-BY 4.0

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Description

Estuaries and lagoons are recognized as some of the nursery habitat for the coastal ecosystem and providing essential ecosystem services to human societies while also facing significant threats from human activities and climate change. However, long-term monitoring data for these types of ecosystems remain scarce. This dataset presents the occurrences and morphological measurements of fish collected from the Qigu Lagoon over seven years (2015–2021). Additionally, it includes the physicochemical parameters of the water over four years (2018–2021). A total of 15,009 individual fish representing 204 species were collected. The Leiognathidae, Clupeidae and Mugilidae were the dominant families while the Eubleekeria splendens, Leiognathus equulus, Planiliza macrolepis, Nematalosa japonica and Nuchequula mannusella were the dominant species. This dataset can be regarded as the baseline to help understanding the interannual changes in the fish assemblages accompanied with environmental change. It may provide valuable references for researchers in related fields and managers of estuaries and coastal lagoons.

Enregistrements de données

Les données de cette ressource données d'échantillonnage ont été publiées sous forme d'une Archive Darwin Core (Darwin Core Archive ou DwC-A), le format standard pour partager des données de biodiversité en tant qu'ensemble d'un ou plusieurs tableurs de données. Le tableur de données du cœur de standard (core) contient 540 enregistrements.

2 tableurs de données d'extension existent également. Un enregistrement d'extension fournit des informations supplémentaires sur un enregistrement du cœur de standard (core). Le nombre d'enregistrements dans chaque tableur de données d'extension est illustré ci-dessous.

Event (noyau)
540
ExtendedMeasurementOrFact 
65440
Occurrence 
3465

Cet IPT archive les données et sert donc de dépôt de données. Les données et métadonnées de la ressource sont disponibles pour téléchargement dans la section téléchargements. Le tableau des versions liste les autres versions de chaque ressource rendues disponibles de façon publique et permet de tracer les modifications apportées à la ressource au fil du temps.

Versions

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Comment citer

Les chercheurs doivent citer cette ressource comme suit:

Hung M.-C., Hsueh M.-L., Hsieh L.-Y., Tsai W.-K., Hsieh C.-Y., Fang I, Tsai P.-H., Su Y.-J., Fang W.-Y. (2025). A seven year monitoring on fish community around the Qigu Lagoon located on the southwest coast of Taiwan. Version 1.0. Taiwan Biodiversity Research Institute. Samplingevent dataset. https://ipt.taibif.tw/resource?r=qigu_long_term_fish_survey&v=1.0

Droits

Les chercheurs doivent respecter la déclaration de droits suivante:

L’éditeur et détenteur des droits de cette ressource est Taiwan Biodiversity Research Institute. Ce travail est sous licence Creative Commons Attribution (CC-BY) 4.0.

Enregistrement GBIF

Cette ressource a été enregistrée sur le portail GBIF, et possède l'UUID GBIF suivante : 63b115a8-da75-4d45-92f5-d43d99de95f3.  Taiwan Biodiversity Research Institute publie cette ressource, et est enregistré dans le GBIF comme éditeur de données avec l'approbation du Taiwan Biodiversity Information Facility.

Mots-clé

Samplingevent; Observation

Contacts

Meng-Chi Hung
  • Fournisseur Des Métadonnées
  • Créateur
  • Personne De Contact
Researcher and Chief of Research Center
Taiwan Biodiversity Research Institute
No. 1 Minsheng East Road, Jiji Town
552005 Nantou
TW
+886492761331, Ext. 262
Mei-Li Hsueh
  • Créateur
Researcher and Former Chief of Research Center
Taiwan Biodiversity Research Institute
No. 1 Minsheng East Road, Jiji Town
552005 Nantou
TW
+886492761331, Ext. 161
Li-Yung Hsieh
  • Créateur
  • Processeur
Project Assistant
Taiwan Biodiversity Research Institute
No. 1 Minsheng East Road, Jiji Town
552005 Nantou
TW
Wen-Kai Tsai
  • Créateur
  • Processeur
Operation Assistant
Taiwan Biodiversity Research Institute
No. 1 Minsheng East Road, Jiji Town
552005 Nantou
TW
Chun-Yu Hsieh
  • Fournisseur Des Métadonnées
  • Créateur
  • Processeur
Operation Assistant
Taiwan Biodiversity Research Institute
No. 1 Minsheng East Road, Jiji Town
552005 Nantou
TW
I Fang
  • Fournisseur Des Métadonnées
  • Créateur
  • Processeur
Operation Assistant
Taiwan Biodiversity Research Institute
No. 1 Minsheng East Road, Jiji Town
552005 Nantou
TW
Pei-Hsiang Tsai
  • Créateur
Operation Assistant
Taiwan Biodiversity Research Institute
No. 1 Minsheng East Road, Jiji Town
552005 Nantou
TW
Yu-Jen Su
  • Créateur
Operation Assistant
Taiwan Biodiversity Research Institute
No. 1 Minsheng East Road, Jiji Town
552005 Nantou
TW
Wen-Yang Fang
  • Créateur
  • Processeur
Operation Assistant
Taiwan Biodiversity Research Institute
No. 1 Minsheng East Road, Jiji Town
552005 Nantou
TW

Couverture géographique

Fish community composition data were collected at 6 stations in the Qigu Lagoon and the estuary of the Qigu River, while physicochemical parameters of water were measured at 7 stations in the same area. The Qigu Lagoon, located on the southwest coast of Taiwan, measures approximately 9 km in length from north to south, 5 km in width from east to west, and covers an area of 1,600 ha, making it the largest lagoon in the island. It has an average depth of 1 m. The sediment in the lagoon is primarily composed of sand. There are three sand barrier islands situated between the Qigu Lagoon and the Taiwan Strait: Qingshan Port Barrier Island, Wangzailiao Barrier Island, and Dingtou'e Barrier Island, listed from north to south. The Qigu River, which flows into the lagoon from the southeast, serves as the primary source of freshwater for the Qigu Lagoon. Dense set nets and oyster racks are present in the Qigu Lagoon and the ditches surrounding the Qigu River.

Enveloppe géographique Sud Ouest [23,108, 120,043], Nord Est [23,144, 120,119]

Couverture taxonomique

Pas de description disponible

Family Cichlidae, Muraenesocidae, Sciaenidae, Siganidae, Haemulidae, Synodontidae, Eleotridae, Pristigasteridae, Ariidae, Mugilidae, Terapontidae, Megalopidae, Sphyraenidae, Pempheridae, Carangidae, Ophichthidae, Nemipteridae, Nomeidae, Ephippidae, Toxotidae, Plotosidae, Apogonidae, Gerreidae, Osphronemidae, Cynoglossidae, Muraenidae, Hemiramphidae, Gobiidae, Moronidae, Pomacentridae, Chanidae, Sillaginidae, Paralichthyidae, Latidae, Clupeidae, Drepaneidae, Trichiuridae, Platycephalidae, Lobotidae, Ambassidae, Monodactylidae, Mullidae, Sparidae, Dasyatidae, Triacanthidae, Serranidae, Acanthuridae, Engraulidae, Polynemidae, Chaetodontidae, Lethrinidae, Leiognathidae, Scatophagidae, Lutjanidae, Syngnathidae, Soleidae, Scaridae, Oplegnathidae, Tetraodontidae, Elopidae, Cyprinidae

Couverture temporelle

Date de début / Date de fin 2015-02-02 / 2021-12-10

Données sur le projet

Pas de description disponible

Titre The study on long-term monitoring in Qigu wetlands ecosystem
Financement Taiwan Biodiversy Research Institute

Les personnes impliquées dans le projet:

Meng-Chi Hung
  • Chercheur Principal

Méthodes d'échantillonnage

Fish samples were collected from six sampling stations between 2015 and 2021. Collections were conducted every three months from 2015 to January, 2017 (February, May, August, and November in 2015; January, April, July, and October in 2016), and every two months thereafter (January, April, June, August, October, and December in 2017; January, March, May, July, September, and November during 2018-2020; February, April, June, August, October, and December in 2021). The stations were selected based on various environmental types, including the estuary, shallow waters of the lagoon, and the oyster farming area in the lagoons near the open sea. Pound nets were employed to collect fish samples at the sampling stations located in shallow waters (ST2, ST3, ST3-1, and ST4), while gill nets were utilized at the stations within the oyster farming area (ST3-7 and ST4-1). The pound nets consisted of several cylindrical hoop nets (mesh size: 1 cm × 1 cm) designed to capture fish, along with a lead component (height: 1.5 m, mesh size: 2 cm × 2 cm). This lead component comprises a series of bamboo stakes and netting that extend from the hoop net. When deployed, the netting was arranged in a V-shape or a Π-shape, with the opening facing the direction opposite to the outgoing tide. This configuration allowed fish to enter the hoop nets with the flow of water. Inside the hoop nets, funnel-shaped nets effectively prevented fish from escaping. The width of the opening of pound nets at ST2, ST3, ST3-1, and ST4 were 120 m, 30 m, 50 m, and 70 m, respectively. Each sampling session at these stations lasted at least 12 hours (approximately a tidal period). The gill nets (length: 200 m, width: 2.4 m, mesh size: 2 cm × 2 cm) were secured to floating oyster farming platforms and deployed in the waterways between the platforms for a duration of 12–14 hours, enmeshing fish that swam by. Setting and hauling in the nets were carried out by the commissioned local fishers. The surveyors supervised the fishers as they retrieved the nets at stations ST3-7 and ST4-1, documenting the environmental conditions at all stations, except for ST3-1, through photographs. The collected fish samples were placed in a cooler box, transported to the laboratory on ice, and subsequently identified, counted, and measured. The identification of the fish samples was performed by several surveyors in accordance with the Fish Database of Taiwan (https://fishdb.sinica.edu.tw/), Fishes of Taiwan (Shen, 1993), and Fishes of Japan with Pictorial Keys to the Species (Nakabo, 2013). After the identification of species, the morphological characteristics of fish collected including body length, total length, body depth, and body weight were measured. The measurement was conducted by a team of 2–4 individuals who double-checked each other's work. The physicochemical parameters of water—dissolved oxygen, electrical conductivity, redox potential, oxygen saturation, pH, salinity, water temperature, and turbidity—of surface water were measured at seven sampling stations using a multiparameter meter (HANNA HI9829) since 2018. At five sampling stations (ST2, ST3, ST4, and ST3-1), water measurements were conducted twice during a single tidal period every two months, specifically at two successive low and high tides. At the two sampling stations (ST3-7 and ST4-1) located near the open sea (i.e., in the oyster farming area), which could only be accessed by a raft operated by local fishers, measurements were taken only once every two months, regardless of tidal conditions.

Etendue de l'étude Fish community composition data were collected at 6 stations in the Qigu Lagoon and the estuary of the Qigu River (23°6'14.4"N to 23°9'7.2"N, 120°2 '9.6"E to 120°7'26.4 "E). The Qigu Lagoon, located on the southwest coast of Taiwan, measures approximately 9 km in length from north to south, 5 km in width from east to west, and covers an area of 1,600 ha, making it the largest lagoon in the island. It has an average depth of 1 m. The sediment in the lagoon is primarily composed of sand. There are three sand barrier islands situated between the Qigu Lagoon and the Taiwan Strait: Qingshan Port Barrier Island, Wangzailiao Barrier Island, and Dingtou'e Barrier Island, listed from north to south. The Qigu River, which flows into the lagoon from the southeast, serves as the primary source of freshwater for the Qigu Lagoon. Dense set nets and oyster racks are present in the Qigu Lagoon and the ditches surrounding the Qigu River.
Contrôle qualité The measurement of the morphological characteristics of fish was conducted by a team of 2–4 individuals who double-checked each other's work. The multiparameter meter used to measure the physicochemical parameters of water was calibrated daily during the sampling periods, and all measurements were taken in triplicate. The accuracy of the recorded data was verified by multiple surveyors.

Description des étapes de la méthode:

  1. The following steps are for fish sampling: (1) Commission local fishers to set pound nets and gill nets in the sampling stations. (2) Collect fish for at least one tidal period. (3) Place fish samples in a cooler box and transport them to the laboratory on ice. (4) Identify and count fish samples in accordance with the Fish Database of Taiwan (https://fishdb.sinica.edu.tw/), Fishes of Taiwan (Shen, 1993), and Fishes of Japan with Pictorial Keys to the Species (Nakabo, 2013). (5) A team of 2-4 surveyors collaborate on measurement of fish samples, including body length, total length, body depth, and body weight.
  2. The following steps are for measurement of physicochemical parameters of water: (1) Calibrate the multiparameter meter (HANNA HI9829). (2) Put the probes of the multiparameter meter into the surface water at the sampling stations. (3) Wait until the reading values do not show increasing or decreasing trends. (4) One surveyor reads reading values aloud and another surveyor records the values on a sheet of paper. (5) Input the recorded data into a computer.

Citations bibliographiques

  1. Nakabo, T. Fishes of Japan with Pictorial Keys to the Species. (Tokai University Press, 2013). ISBN 978-448-6018-04-9
  2. Shao, K.-T. Fish Database of Taiwan (2025). https://fishdb.sinica.edu.tw/about
  3. Shen, S.-C. Fishes of Taiwan. (Department of Zoology, National Taiwan University, 1993). ISBN 978-957-9019-44-6

Métadonnées additionnelles

Identifiants alternatifs 63b115a8-da75-4d45-92f5-d43d99de95f3
https://ipt.taibif.tw/resource?r=qigu_long_term_fish_survey