Descrição
Downeast Salmon Federation is conducting a presence/absence survey in Hancock and Washington County in December and January to monitor tomcod (also known as frost fish). This is part of a larger citizen science project gathering information on anadromous fish species. Maine is home to 12 species of native sea-run (called diadromous) fish that spend part of their lives in freshwater and part in the sea. These fish make astounding migrations each year with significant impacts to the freshwater, estuary, and marine environments that they move through as they complete their life cycles. Because of the widespread and mobile nature of their life histories, much remains to be known about which particular coastal rivers they occupy, the timing and extent of their migrations, and the number of individuals present. Information about these fish has implications for species conservation, restoration, and management. Atlantic tomcod are one such species that migrate up rivers from the ocean to spawn in the winter. Spawning occurs in shallow brackish or fresh water over gravelly bottom. A female can deposit 6,000-30,000 eggs. Egg incubation takes up to 30 days in 30 to 43ºF water. The average adult is 9-12 in. Life expectancy is 4 years. Atlantic tomcod live in the mouths of streams or estuaries and are resistant to sudden changes in temperature and salinity. Their range is southern Labrador to Virginia. Tomcod eat larval copepods, small crustaceans, small mollusks, worms, as well as fish larvae and are eaten by predators such as Striped Bass and Bluefish. Atlantic tomcod populations have declined due to loss of access to spawning grounds, overfishing, and exposure to toxins. Because they typically live year-round in estuaries, tomcod are particularly subject to stresses from pollutants. Since the commercial fishery closed in the 1950s, there is very little known about their current whereabouts or how well they are doing in Maine rivers and streams. We need to learn more about these amazing creatures to better manage our rivers and streams now and into the future. Information collected by this project is designed to create a more complete picture of where, when, and in what numbers tomcod can be found.
Registros de Dados
Os dados deste recurso de ocorrência 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 84 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.
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.
Direitos
Pesquisadores devem respeitar a seguinte declaração de direitos:
O editor e o detentor dos direitos deste trabalho é The Community Environmental Health Laboratory at MDI Biological Laboratory. 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: f3c378aa-92c4-47f2-b718-c9520872ebf2. The Community Environmental Health Laboratory at MDI Biological Laboratory publica este recurso, e está registrado no GBIF como um publicador de dados aprovado por GBIF-US.
Palavras-chave
Occurrence
Contatos
- Originador ●
- Ponto De Contato
- Associate Professor of Environmental Health
http://orcid.org/https://orcid.org/0000-0003-4869-9802
- Originador ●
- Ponto De Contato
- Systems Developer
- Originador ●
- Ponto De Contato
- Community Manager
- Provedor Dos Metadados ●
- Originador ●
- Usuário ●
- Ponto De Contato
- Community Environmental Health Laboratory Manager
- Ponto De Contato
- Community Environmental Health Laboratory
Cobertura Geográfica
Downeast Maine, United States
| Coordenadas delimitadoras | Sul Oeste [44,323, -68,506], Norte Leste [44,955, -67,104] |
|---|
Cobertura Temporal
| Data Inicial / Data final | 2009-12-04 / 2020-01-25 |
|---|
Dados Sobre o Projeto
Anecdata is a free online citizen science platform developed by the Community Lab at the MDI Biological Laboratory in Bar Harbor, Maine. Anecdata is used by hundreds of individuals and organizations to gather and access citizen science observations and provides a platform to easily collect, manage, and share their citizen science data. How Anecdata works: Project managers create projects, creating datasheets that participants fill out to share their observations. Participants join projects and use the Anecdata website or mobile app to share their observations with the project. Project data is now available for anyone to view and download!
| Título | Anecdata.org |
|---|---|
| Identificador | Anecdata.org |
O pessoal envolvido no projeto:
- Pesquisador Principal
- Curador
Métodos de Amostragem
Maine is home to 12 species of native sea-run (called diadromous) fish that spend part of their lives in freshwater and part in the sea. These fish make astounding migrations each year with significant impacts to the freshwater, estuary, and marine environments that they move through as they complete their life cycles. Because of the widespread and mobile nature of their life histories, much remains to be known about which particular coastal rivers they occupy, the timing and extent of their migrations, and the number of individuals present. Information about these fish has implications for species conservation, restoration, and management. Atlantic tomcod are one such species that migrate up rivers from the ocean to spawn in the winter. Spawning occurs in shallow brackish or fresh water over gravelly bottom. A female can deposit 6,000-30,000 eggs. Egg incubation takes up to 30 days in 30 to 43ºF water. The average adult is 9-12 in. Life expectancy is 4 years. Atlantic tomcod live in the mouths of streams or estuaries and are resistant to sudden changes in temperature and salinity. Their range is southern Labrador to Virginia. Tomcod eat larval copepods, small crustaceans, small mollusks, worms, as well as fish larvae and are eaten by predators such as Striped Bass and Bluefish. Atlantic tomcod populations have declined due to loss of access to spawning grounds, overfishing, and exposure to toxins. Because they typically live year-round in estuaries, tomcod are particularly subject to stresses from pollutants. Since the commercial fishery closed in the 1950s, there is very little known about their current whereabouts or how well they are doing in Maine rivers and streams. We need to learn more about these amazing creatures to better manage our rivers and streams now and into the future. Information collected by this project is designed to create a more complete picture of where, when, and in what numbers tomcod can be found.
| Área de Estudo | Downeast Salmon Federation is conducting a presence/absence survey in Hancock and Washington County in December and January to monitor tomcod (also known as frost fish). This is part of a larger citizen science project gathering information on anadromous fish species. Project Goal: Determine the presence and absence of Microgadus tomcod in Downeast Maine. |
|---|
Descrição dos passos do método:
- Participants will visually identify Microgadus tomcod sign, including fish and bird activity.
Metadados Adicionais
| Identificadores alternativos | f3c378aa-92c4-47f2-b718-c9520872ebf2 |
|---|---|
| https://doi.org/10.15468/sq6w35 | |
| https://bison.usgs.gov/ipt/resource?r=tomcod |