Dataset: Number of eggs spawned

Name: The number of fertilized and unfertilized eggs produced by M. beryllina individuals collected in Suisun Bay, California in spawning experiments.
Published: 2017-08-04
Keywords: oceans

Cite This Dataset

DOI:10.1575/1912/bco-dmo.713302.1

Spatial Extent: N:38.078633 E:-122.06896 S:38.078633 W:-122.06896

Temporal Extent: 2013-06-25 - 2013-10-09

Project:

Impacts of size-selective mortality on sex-changing fishes (Goby size-selection)

Principal Investigator:

J. Wilson White (University of North Carolina - Wilmington, UNC-Wilmington)

Co-Principal Investigator:

Susanne Brander (University of North Carolina - Wilmington, UNC-Wilmington)

Contact:

J. Wilson White (University of North Carolina - Wilmington, UNC-Wilmington)

BCO-DMO Data Manager:

Hannah Ake (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

Version Date:

2017-08-04

Restricted:

Validated:

Current State:

Final no updates expected

The number of fertilized and unfertilized eggs produced by M. beryllina individuals collected in Suisun Bay, California in spawning experiments.

Abstract:

The number of fertilized and unfertilized eggs produced by M. beryllina individuals collected in Suisun Bay, California in spawning experiments.

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Archival Copy

Version Date	Archive	Persistent Identifier	Date Assigned
2017-08-04	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.1575/1912/bco-dmo.713302.1	2019-03-19

Description

The number of Menidia beryllina eggs spawned in each trial, organized by replicate tanks.

Methods & Sampling

Fish survey data were collected by beach seine in the Suisun Bay region of the San Francisco Bay-Delta by Susanne Brander and Bryan Cole. Sampling methodology is fully described in Brander et al. (2013).

Laboratory spawning trials were used to determine the relationship between sex ratio and egg production. Adult inland silversides were placed together in 95 liter circular tanks and allowed to spawn on an artificial spawning substrate (polyester yarn clumps). Substrate was removed daily and inspected for eggs; fertilization was determined by coloration. Full details are provided in White et al. (2017).

Data Processing Description

Scripts that were used to process these data can be found here: github.com/jwilsonwhite/IPM_statespace. Model code implements an explicit-sex, age-structured model that examines the effects of sex change (due to endocrine disruption) on fish populations. The code also fits a nonlinear mating function to laboratory spawning data, for use in parameterizing the model. All methodological details are provided in White et al. (2017).

BCO-DMO Data Processing Notes:

-dates were reformatted from mm/dd/yy to yyyy/mm/dd

Data Files

File
eggs.csv (Comma Separated Values (.csv), 946 bytes) MD5:7e44891111de9ca6cddede6afe70871a Primary data file for dataset ID 713302

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1435473

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
White_2012		2009-03-20	shoreside Calif_shore	J. Wilson White (Principal Investigator) Susanne Brander (Co-Principal Investigator)	data info

Instruments

Purse-seine Fishing Gear

Supplied Name: Beach seine

Supplied Description:

Used to collect samples

Instrument Type

Generic Name: Purse-seine Fishing Gear

Acronym: Purse-seine

Generic Description:

A purse seine is a large wall of netting deployed in a circle around an entire school of fish. The seine has floats along the top line with a lead line of chain along the bottom. Once a school of fish is located, a skiff pulls the seine into the water as the vessel encircles the school with the net. A cable running along the bottom is then pulled in, "pursing" the net closed on the bottom, preventing fish from escaping by swimming downward. The catch is harvested by bringing the net alongside the vessel and brailing the fish aboard.

Parameters

Date and time formats are described in python strftime() syntax.

Supplied Name	Supplied description	Supplied Units	Standard Name
fert	Number of fertilized eggs collected	count	count
unfert	Number of unfertilized eggs collected	count	count
trial	Trial number	unitless	no_bcodmo_term
tank	Aquarium tank for this fish	unitless	tank
day	Day of trial; 1 or 2	unitless	day
date	Date of trial; YYYY/MM/DD	unitless	date